Radiology

 
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    MedPage Today Radiology

  • The Week Ahead: Prostate Tx, Hepatitis, Aging

    27 Jul 2014 | 2:50 pm
    (MedPage Today) -- An FDA panel examines an ultrasound-based treatment for low-risk prostate cancer, Monday is World Hepatitis Day, and the interaction of two common afflictions in the elderly gets a close-up look.
  • Resuscitation in the ED: Beyond the ABCs (CME/CE)

    19 Jul 2014 | 10:22 am
    (MedPage Today) -- Approaching a critically ill patient can be nerve-racking, making it hard to remember what to do. Here's an expanded ABCs mnemonic to jog your memory and unrack your nerves.
  • Do Brain Games Build Bigger Brains?

    14 Jul 2014 | 11:48 am
    COPENHAGEN (MedPage Today) -- People who frequently engaged in cognitively-stimulating activities had greater volumes in key brain areas that may protect against Alzheimer's disease-related outcomes, researchers reported here.
  • OncoBriefs: Depression and Mortality, RCC, Head and Neck (CME/CE)

    11 Jul 2014 | 12:00 pm
    (MedPage Today) -- Clinically depressed prostate cancer patients received definitive treatment less often and had worse survival as compared with patients without depression, data from a large cohort showed.
  • Hot Topics 2014: Alzheimer's Disease Revisited

    8 Jul 2014 | 9:00 am
    (MedPage Today) -- Early this year we asked, "What will be the most important clinical developments in Alzheimer's disease in 2014?" Now, at the half-year mark, we ask our experts how their predictions are holding up.
 
 
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    American Journal of Neuroradiology current issue

  • ERRATUM [ERRATA]

    15 Jul 2014 | 8:01 am
  • Impact of Age and Baseline NIHSS Scores on Clinical Outcomes in the Mechanical Thrombectomy Using Solitaire FR in Acute Ischemic Stroke Study [EVIDENCE-BASED MEDICINE LEVEL 2]

    Almekhlafi, M. A., Davalos, A., Bonafe, A., Chapot, R., Gralla, J., Pereira, V. M., Goyal, M., on behalf of the STAR Registry Investigators
    15 Jul 2014 | 8:01 am
    BACKGROUND AND PURPOSE: Age and stroke severity are inversely correlated with the odds of favorable outcome after ischemic stroke. A previously proposed score for Stroke Prognostication Using Age and NIHSS Stroke Scale (SPAN) indicated that SPAN-100-positive patients (ie, age + NIHSS score = 100 or more) do not benefit from IV-tPA. If this finding holds true for endovascular therapy, this score can impact patient selection for such interventions. This study investigated whether a score combining age and NIHSS score can improve patients' selection for endovascular stroke therapy. MATERIALS AND…
  • Flow Diversion versus Traditional Endovascular Coiling Therapy: Design of the Prospective LARGE Aneurysm Randomized Trial [INTERVENTIONAL]

    Turk, A. S., Martin, R. H., Fiorella, D., Mocco, J., Siddiqui, A., Bonafe, A.
    15 Jul 2014 | 8:01 am
    BACKGROUND AND PURPOSE: The goal of aneurysm treatment is occlusion of an aneurysm without morbidity or mortality. Using well-established, traditional endovascular techniques, this is generally achievable with a high level of safety and efficacy. These techniques involve either constructive treatment of the aneurysm (coils with or without an intravascular stent) or deconstruction (coil occlusion) of the aneurysm and the parent artery. While established as safe and efficacious, the constructive treatment of large and giant aneurysms with coils has typically been associated with relatively…
  • Use of Flow-Diverting Devices in Fusiform Vertebrobasilar Giant Aneurysms: A Report on Periprocedural Course and Long-Term Follow-Up [EDITOR'S CHOICE]

    Ertl, L., Holtmannspotter, M., Patzig, M., Bruckmann, H., Fesl, G.
    15 Jul 2014 | 8:01 am
    BACKGROUND AND PURPOSE: Fusiform vertebrobasilar giant aneurysms are a rare (<1% of all intracranial aneurysms) but challenging aneurysm subtype. Little data are available on the natural history of this aneurysm subtype and the impact of the use of flow-diverting stents on the long-term clinical and imaging follow-up. In this article, we present our experience with the treatment of fusiform vertebrobasilar giant aneurysms by flow diverting stents. We aim to stimulate a discussion of the best management paradigm for this challenging aneurysm subtype. MATERIALS AND METHODS: We…
  • Hydrocephalus Decreases Arterial Spin-Labeled Cerebral Perfusion [PEDIATRICS]

    Yeom, K. W., Lober, R. M., Alexander, A., Cheshier, S. H., Edwards, M. S. B.
    15 Jul 2014 | 8:01 am
    BACKGROUND AND PURPOSE: Reduced cerebral perfusion has been observed with elevated intracranial pressure. We hypothesized that arterial spin-labeled CBF can be used as a marker for symptomatic hydrocephalus. MATERIALS AND METHODS: We compared baseline arterial spin-labeled CBF in 19 children (median age, 6.5 years; range, 1–17 years) with new posterior fossa brain tumors and clinical signs of intracranial hypertension with arterial spin-labeled CBF in 16 age-matched controls and 4 patients with posterior fossa tumors without ventriculomegaly or signs of intracranial hypertension.
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    Journal of Medical Imaging and Radiation Oncology

  • Diagnostic efficacy of diffusion-weighted MRI for pre-operative assessment of myometrial and cervical invasion and pelvic lymph node metastasis in endometrial carcinoma

    Mustafa Koplay, Nasuh Utku Dogan, Hasan Erdogan, Mesut Sivri, Cengiz Erol, Alaaddin Nayman, Pinar Karabagli, Yahya Paksoy, Cetin Celik
    21 Jul 2014 | 3:05 am
    Abstract IntroductionTo determine the diagnostic accuracy of diffusion-weighted magnetic resonance imaging (DW-MRI) for the pre-operative assessment of patients with endometrial carcinoma and to assess myometrial and cervical invasion as well as pelvic lymph node metastasis. MethodsFifty-eight women who underwent surgery for histopathologically confirmed endometrial carcinoma were included in the current study. Prior to surgery, patients were evaluated using pelvic DW-MRI and gadolinium-enhanced T1-weighted imaging (Gd-T1WI). Gd-T1WI was evaluated together with T2-weighted images. DW-MR…
  • Pathological manifestation of difference in washout pattern of adrenal hyperplasia on dynamic CT

    Akihiro Nishie, Yoshiki Asayama, Kousei Ishigami, Daisuke Kakihara, Tomohiro Nakayama, Yasuhiro Ushijima, Yukihisa Takayama, Akira Yokomizo, Katsunori Tatsugami, Junichi Inokuchi, Nobuhiro Fujita, Yuichiro Kubo, Shinichi Aishima, Masakazu Hirakawa, Hiroshi Honda
    17 Jul 2014 | 2:59 am
    Abstract IntroductionThe relationship between the washout pattern and constituent cell in adrenal hyperplasia (AH) has not been fully investigated. The purpose of this study was to elucidate the radiological or pathological factors determining the washout pattern of AH on dynamic CT. MethodsTen patients with 14 surgically proven AHs were enrolled. Dynamic CT was scanned before (pre-contrast image) and 60 seconds (early phase) and 240 seconds (delayed phase) after administration of iodine contrast. The absolute percentage washout (APW) of each nodular lesion was calculated using the following…
  • Spontaneous migration of a portacath into the azygos vein with subsequent development of a tracheo-azygos fistula

    Matthew H Andrews, Bruce D Chisholm
    17 Jul 2014 | 2:55 am
    Summary Subcutaneous venous port or ‘portacath’ devices are widely used, especially in oncology patients. Several potential complications of portacath devices have been well documented. We report a rare case of the spontaneous migration of the tip of a portacath into the azygos vein, with subsequent development of a tracheo-azygos fistula. This resulted in the patient receiving a dose of chemotherapy agent and saline directly into his lungs, which ultimately contributed to his death a few weeks later. To our knowledge, there have been only 10 previously reported cases of inadvertent…
  • Value of MRI sequences for prediction of invasive breast carcinoma size

    Irmak Durur-Subasi, Afak Durur-Karakaya, Adem Karaman, Elif Demirci, Fatih Alper, Elif Yılmazel-Ucar, Hamit Acemoglu, Mufide Nuran Akcay
    4 Jul 2014 | 2:04 am
    Abstract IntroductionIn this retrospective study, we compared transverse short tau inversion recovery (STIR), transverse diffusion-weighted imaging (DWI), apparent diffusion coefficient (ADC) map and first post-contrast fat-saturated fast low-angle shot (FLASH) 3D T1 with pathology results in terms of their accuracy in estimating breast carcinoma size. MethodsMagnetic resonance imaging data for 47 patients with invasive breast carcinoma, who were treated surgically, were reviewed. The longest dimension (LD) of the index lesion was measured using STIR, DWI, ADC map and first post-contrast…
  • Protocol for CT in the position of discomfort: Preoperative assessment of femoroacetabular impingement – how we do it and what the surgeon wants to know

    Rafal Grabinski, Daniel Ou, Kate Saunder, Andrew Rotstein, Parminder Singh, Michael Pritchard, John O'Donnell
    4 Jul 2014 | 2:02 am
    Abstract IntroductionThe use of computed tomography of the hip in a position of discomfort (CT-POD) in combination with 2D and 3D surface rendering is a technique increasingly used to aid in the assessment and confirmation of femoral and acetabular bony abnormalities related to femoroacetabular impingement. The purpose of this article is to describe this dynamic method of assessment. MethodsPatients referred by orthopaedic surgeons for assessment of femoroacetabular impingement as part of preoperative planning and patients who required postoperative assessment of residual bony abnormalities…
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    BMC Medical Imaging - Latest Articles

  • Determination of regional lung air volume distribution at mid-tidal breathing from computed tomography: a retrospective study of normal variability and reproducibility

    John Fleming
    24 Jul 2014 | 5:00 pm
    Background: Determination of regional lung air volume has several clinical applications. This study investigates the use of mid-tidal breathing CT scans to provide regional lung volume data. Methods: Low resolution CT scans of the thorax were obtained during tidal breathing in 11 healthy control male subjects, each on two separate occasions. A 3D map of air volume was derived, and total lung volume calculated. The regional distribution of air volume from centre to periphery of the lung was analysed using a radial transform and also using one dimensional profiles in three orthogonal…
  • Analysis of regional bone scan index measurements for the survival of patients with prostate cancer

    Jonas Kalderstam
    9 Jul 2014 | 5:00 pm
    Background: A bone scan is a common method for monitoring bone metastases in patients with advanced prostate cancer. The Bone Scan Index (BSI) measures the tumor burden on the skeleton, expressed as a percentage of the total skeletal mass. Previous studies have shown that BSI is associated with survival of prostate cancer patients. The objective in this study was to investigate to what extent regional BSI measurements, as obtained by an automated method, can improve the survival analysis for advanced prostate cancer. Methods: The automated method for analyzing bone scan images computed BSI…
  • Fuzzy technique for microcalcifications clustering in digital mammograms

    Letizia Vivona
    23 Jun 2014 | 5:00 pm
    Background: Mammography has established itself as the most efficient technique for the identification of the pathological breast lesions. Among the various types of lesions, microcalcifications are the most difficult to identify since they are quite small (0.1-1.0 mm) and often poorly contrasted against an images background. Within this context, the Computer Aided Detection (CAD) systems could turn out to be very useful in breast cancer control. Methods: In this paper we present a potentially powerful microcalcifications cluster enhancement method applicable to digital mammograms. The…
  • Fractal dimension analysis of malignant and benign endobronchial ultrasound nodes

    José Antonio Fiz
    11 Jun 2014 | 5:00 pm
    Background: Endobronchial ultrasonography (EBUS) has been applied as a routine procedure for the diagnostic of hiliar and mediastinal nodes. The authors assessed the relationship between the echographic appearance of mediastinal nodes, based on endobronchial ultrasound images, and the likelihood of malignancy. Methods: The images of twelve malignant and eleven benign nodes were evaluated. A previous processing method was applied to improve the quality of the images and to enhance the details. Texture and morphology parameters analyzed were: the image texture of the echographies and a fractal…
  • Impact of a standardized training program on midwives¿ ability to assess fetal heart anatomy by ultrasound

    Eric Hildebrand
    1 Jun 2014 | 5:00 pm
    Background: Studies of prenatal detection of congenital heart disease (CHD) in the UK, Italy, and Norway indicate that it should be possible to improve the prenatal detection rate of CHD in Sweden. These studies have shown that training programs, visualization of the outflow tracts and color-Doppler all can help to speed up and improve the detection rate and accuracy. We aimed to introduce a more accurate standardized fetal cardiac ultrasound screening protocol in Sweden. Methods: A novel pedagogical model for training midwives in standardized cardiac imaging was developed, a model using a…
 
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    Cardiovascular Ultrasound - Latest Articles

  • Which method of left atrium size quantification is the most accurate to recognize thromboembolic risk in patients with non-valvular atrial fibrillation?

    Ana Faustino
    21 Jul 2014 | 5:00 pm
    Background: Left atrial (LA) size is a predictor of cardiovascular outcomes in patients in sinus rhythm, whereas conflicting results have been found in atrial fibrillation (AF). This study aims to evaluate the accuracy of LA size to identify surrogate markers of an increased thromboembolic risk in patients with AF; assess the best method to evaluate LA size in this setting. Methods: Cross-sectional study enrolling 500 consecutive patients undergoing transthoracic and transesophageal echocardiography evaluation during a non-valvular AF episode. LA size was measured on transthoracic…
  • The potential value of integrated natriuretic peptide and echo-guided heart failure management

    Maria Scali
    17 Jul 2014 | 5:00 pm
    There is increasing interest in guiding Heart Failure (HF) therapy with Brain Natriuretic Peptide (BNP) or N-terminal prohormone of Brain Natriuretic Peptide (NT-proBNP), with the goal of lowering concentrations of these markers (and maintaining their suppression) as part of the therapeutic approach in HF. However, recent European Society of Cardiology (ESC) and American Heart Association/ American College of Cardiology (AHA/ACC) guidelines did not recommend biomarker-guided therapy in the management of HF patients. This has likely to do with the conceptual, methodological, and practical…
  • Need for a standardized protocol for stress echocardiography in provoking subaortic and valvular gradient in various cardiac conditions

    Pawel Petkow Dimitrow
    13 Jul 2014 | 5:00 pm
    (Semi) supine exercise testing has an established role in the evaluation of patients with valvular heart disease and can help clinical decision making. Stress echocardiography has the advantages of its wide availability, low cost, and versatility for the assessment of disease severity. However, exercise-induced changes in valve hemodynamics, left ventricular outflow obstruction and pulmonary artery pressure depended on load variation. Changing position from supine to upright rapidly decreases load conditions for the ventricles. Therefore several cardiac centers have proposed exercise stress…
  • How I do it: Lung ultrasound

    Luna Gargani
    3 Jul 2014 | 5:00 pm
    In the last 15 years, a new imaging application of sonography has emerged in the clinical arena: lung ultrasound (LUS). From its traditional assessment of pleural effusions and masses, LUS has moved towards the revolutionary approach of imaging the pulmonary parenchyma, mainly as a point-of-care technique. Although limited by the presence of air, LUS has proved to be useful in the evaluation of many different acute and chronic conditions, from cardiogenic pulmonary edema to acute lung injury, from pneumothorax to pneumonia, from interstitial lung disease to pulmonary infarctions and…
  • Diverse geometric changes related to dynamic left ventricular outflow tract obstruction without overt hypertrophic cardiomyopathy

    Jung-Joon Cha
    2 Jul 2014 | 5:00 pm
    Background: Dynamic left ventricular (LV) outflow tract (LVOT) obstruction (DLVOTO) is not infrequently observed in older individuals without overt hypertrophic cardiomyopathy (HCM). We sought to investigate associated geometric changes and then evaluate their clinical characteristics. Methods: A total of 168 patients with DLVOTO, which was defined as a trans-LVOT peak pressure gradient (PG) higher than 30 mmHg at rest or provoked by Valsalva maneuver (latent LVOTO) without fixed stenosis, were studied. Patients with classical HCM, acute myocardial infarction, stress induced cardiomyopathy…
 
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    Human Brain Mapping

  • A direct amygdala-motor pathway for emotional displays to influence action: A diffusion tensor imaging study

    Julie Grèzes, Romain Valabrègue, Bahar Gholipour, Coralie Chevallier
    22 Jul 2014 | 9:45 pm
    Abstract An important evolutionary function of emotions is to prime individuals for action. Although functional neuroimaging has provided evidence for such a relationship, little is known about the anatomical substrates allowing the limbic system to influence cortical motor-related areas. Using diffusion-weighted magnetic resonance imaging and probabilistic tractography on a cohort of 40 participants, we provide evidence of a structural connection between the amygdala and motor-related areas (lateral and medial precentral, motor cingulate and primary motor cortices, and postcentral gyrus) in…
  • Disruption of structural and functional networks in long-standing multiple sclerosis

    Prejaas Tewarie, Martijn D. Steenwijk, Betty M. Tijms, Marita Daams, Lisanne J. Balk, Cornelis J. Stam, Bernard M.J. Uitdehaag, Chris H. Polman, Jeroen J.G. Geurts, Frederik Barkhof, Petra J.W. Pouwels, Hugo Vrenken, Arjan Hillebrand
    22 Jul 2014 | 7:23 am
    Abstract Both gray matter atrophy and disruption of functional networks are important predictors for physical disability and cognitive impairment in multiple sclerosis (MS), yet their relationship is poorly understood. Graph theory provides a modality invariant framework to analyze patterns of gray matter morphology and functional coactivation. We investigated, how gray matter and functional networks were affected within the same MS sample and examined their interrelationship. Magnetic resonance imaging and magnetoencephalography (MEG) were performed in 102 MS patients and 42 healthy…
  • Combined neuroimaging and gene expression analysis of the genetic basis of brain plasticity indicates across species homology

    Yonatan Dinai, Lior Wolf, Yaniv Assaf
    22 Jul 2014 | 7:23 am
    Abstract Brain plasticity and memory formation depend on the expression of a large number of genes. This relationship had been studied using several experimental approaches and researchers have identified genes regulating plasticity through a variety of mechanisms. Despite this effort, a great deal remains unknown regarding the role of different genes in brain plasticity. Previous studies usually focused on specific brain structures and many of the genes influencing plasticity have yet to be identified. In this work, we integrate results of in vivo neuroimaging studies of plasticity with…
  • Combining diffusion tensor imaging and magnetic resonance spectroscopy to study reduced frontal white matter integrity in youths with family histories of substance use disorders

    Ashley Acheson, S. Andrea Wijtenburg, Laura M. Rowland, Bethany C. Bray, Frank Gaston, Charles W. Mathias, Peter T. Fox, William R. Lovallo, Susan N. Wright, L. Elliot Hong, Stephen McGuire, Peter Kochunov, Donald M. Dougherty
    20 Jul 2014 | 9:55 pm
    Abstract Individuals with a family history of substance use disorder (FH+) show impaired frontal white matter as indicated by diffusion tensor imaging (DTI). This impairment may be due to impaired or delayed development of myelin in frontal regions, potentially contributing to this population's increased risk for developing substance use disorders. In this study, we examined high angular resolution DTI and proton magnetic resonance spectroscopy data from the anterior corona radiata were collected in 80 FH+ and 34 FH− youths (12.9 ± 1.0 years old). White matter integrity indices…
  • Spatiotemporal characteristics of electrocortical brain activity during mental calculation

    Mariska J. Vansteensel, Martin G. Bleichner, Zac V. Freudenburg, Dora Hermes, Erik J. Aarnoutse, Frans S.S. Leijten, Cyrille H. Ferrier, Johan Martijn Jansma, Nick F. Ramsey
    18 Jul 2014 | 3:04 am
    Abstract Mental calculation is a complex mental procedure involving a frontoparietal network of brain regions. Functional MRI (fMRI) studies have revealed interesting characteristics of these regions, but the precise function of some areas remains elusive. In the present study, we used electrocorticographic (ECoG) recordings to chronometrically assess the neuronal processes during mental arithmetic. A calculation task was performed during presurgical 3T fMRI scanning and subsequent ECoG monitoring. Mental calculation induced an increase in fMRI blood oxygen level dependent signal in…
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    Journal of Clinical Ultrasound

  • A rare giant placental chorioangioma with favorable outcome: A case report and review of the literature

    Miaoying Fan, Hamid Mootabar
    18 Jul 2014 | 3:25 am
    ABSTRACT We describe a rare giant placental chorioangioma in a patient who had a favorable outcome with close prenatal surveillance in a 28-year-old primigravida who was referred to our clinic for ultrasound evaluation of a suspected placental mass at 23 weeks' gestation. A detailed ultrasound scan revealed a well-circumscribed, echogenic lesion measuring 11.0 × 10.3 × 7.3 cm and protruding into the amniotic cavity. A diagnosis of placental chorioangioma was made and intensive prenatal surveillance was scheduled. A small-for-gestational age (2,325 g) but normal female neonate was delivered…
  • Use of three-dimensional power doppler sonography in the diagnosis of uterine arteriovenous malformation and follow-up after uterine artery embolization: Case report and brief review of literature

    Thomas G. Tullius, Jason Robert Ross, Melanie Flores, Melhem Ghaleb, Sanja Kupesic Plavsic
    18 Jul 2014 | 3:25 am
    ABSTRACT Arteriovenous malformations (AVM) of the uterus can cause life-threatening hemorrhage. Unexplained, heavy vaginal bleeding in a reproductive age woman should raise suspicion for an AVM. Here a 37-year-old woman had increasingly severe vaginal bleeding for 15 days. Serum β-hCG was elevated. Two-dimensional transvaginal ultrasound suggested retained products of conception. Before dilation and curettage (D&C), color Doppler and three-dimensional (3D) power Doppler demonstrated findings indicative of uterine AVM. A bilateral uterine artery embolization was performed without…
  • Sonographic appearance of a dermoid cyst (mature cystic teratoma) of the spleen

    Eugenio O. Gerscovich, Ghaneh Fananapazir, John P. McGahan, Jonah S. Hirschbein, Sima Naderi, Michael T. Corwin, Benjamin H. Durham
    17 Jul 2014 | 3:13 am
    ABSTRACT Splenic dermoids are rare, with few published case reports and no ultrasound images in the English literature. We report the case of a 57-year-old woman with that diagnosis and illustrate it with ultrasound, CT, and pathology images. We discuss the differential diagnosis of solid splenic lesions. © 2014 Wiley Periodicals, Inc. J Clin Ultrasound, 2014
  • Contrast-enhanced endoscopic ultrasonography can predict a higher malignant potential of gastrointestinal stromal tumors by visualizing large newly formed vessels

    Yasunobu Yamashita, Jun Kato, Kazuki Ueda, Yasushi Nakamura, Hiroko Abe, Takashi Tamura, Masahiro Itonaga, Takeichi Yoshida, Hiroki Maeda, Kosaku Moribata, Toru Niwa, Takao Maekita, Mikitaka Iguchi, Hideyuki Tamai, Masao Ichinose
    16 Jul 2014 | 2:54 am
    ABSTRACT BackgroundThe aim of this study was to elucidate the histologic and clinical implications of detection of intratumoral vessels on contrast-enhanced endoscopic ultrasonography (CE-EUS) in gastrointestinal stromal tumors (GISTs). MethodsThirteen patients with a GIST, all of whom were referred for surgery, underwent presurgical CE-EUS. The malignant potential, assessed according to the modified Fletcher risk classification system, and the histologic degree of angiogenesis were compared with the presence or absence of intratumoral vessels on CE-EUS. ResultsOf the six tumors with…
  • In utero resolution of microcystic congenital cystic adenomatoid malformation after prenatal betamethasone therapy: A report of three cases and a literature review

    Akiko Yamashita, Nobuhiro Hidaka, Ryo Yamamoto, Soichiro Nakayama, Jun Sasahara, Keisuke Ishii, Nobuaki Mitsuda
    15 Jul 2014 | 3:35 am
    ABSTRACT Fetal congenital cystic adenomatoid malformation (CCAM) can progress to nonimmune hydrops, and the mortality rate of CCAM with hydrops is reported to be nearly 100%. We describe three microcystic CCAM cases in which the fetal condition improved after maternal betamethasone therapy. The median gestational age at steroid administration was 23 5/7 weeks' gestation. The CCAM decreased in size in all cases. Our series showed a 100% hydrops resolution rate (2/2) and a 100% survival rate (3/3). Our experience suggests the efficacy of betamethasone treatment on fetuses with microcystic CCAM…
 
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    Radiation Oncology - Latest Articles

  • Wavelet-based algorithm to the evaluation of contrasted hepatocellular carcinoma in CT-images after transarterial chemoembolization

    Matheus Alvarez
    25 Jul 2014 | 5:00 pm
    Background: Hepatocellular carcinoma is a primary tumor of the liver and involves different treatment modalities according to the tumor stage. After local therapies, the tumor evaluation is based on the mRECIST criteria, which involves the measurement of the maximum diameter of the viable lesion. This paper describes a computed methodology to measure through the contrasted area of the lesions the maximum diameter of the tumor by a computational algorithm. Methods: 63 computed tomography (CT) slices from 23 patients were assessed. Non-contrasted liver and HCC typical nodules were evaluated,…
  • Dosimetric feasibility of stereotactic body radiation therapy as an alternative to brachytherapy for definitive treatment of medically inoperable early stage endometrial cancer

    Ryan Jones
    23 Jul 2014 | 5:00 pm
    Purpose: This study was designed to evaluate the dosimetric feasibility of definitive stereotactic body radiation therapy (SBRT) for the treatment of medically inoperable early stage endometrial cancer. Methods: CT simulation scans from 10 medically inoperable early stage endometrial cancer patients previously treated with high dose-rate (HDR) intracavitary brachytherapy were used to generate Helical Tomotherapy (HT) plans using the IMRT mode with clinical target volumes (CTVs) that included the uterus plus cervix. A prescription dose of 34 Gy in 4 fractions was used. The SBRT dosimetry was…
  • Hypofractionated radiotherapy for breast cancer acceleration of the START A treatment regime: intermediate tolerance and efficacy

    Stefan Janssen
    23 Jul 2014 | 5:00 pm
    Purpose: Prospective evaluation of accelerated hypofractionated radiotherapy (RT) in breast cancer patients treated with 41.6Gy in 13 fractions plus boost delivered five times a week.Patients and methods: Between 03/2009 and 10/2012 98 consecutive patients aged >55 years presenting with breast cancer (invasive cancer: n = 95, ductal carcinoma in situ (DCIS): n = 3) after breast conserving surgery were treated in our institution with the following schedule: 41.6Gy in 13 fractions 4 times a week and 9 or 12Gy boost in 3 or 4 fractions (on day 5 each week), cumulative dose: 50.6Gy in 3.2…
  • Obstructive voiding symptoms following stereotactic body radiation therapy for prostate cancer

    W Arscott
    23 Jul 2014 | 5:00 pm
    Background: Obstructive voiding symptoms (OVS) are common following prostate cancer treatment with radiation therapy. The risk of urinary retention (UR) following hypofractionated radiotherapy has yet to be fully elucidated. This study sought to evaluate OVS and UR requiring catheterization following SBRT for prostate cancer. Methods: Patients treated with SBRT for localized prostate cancer from February 2008 to July 2011 at Georgetown University were included in this study. Treatment was delivered using the CyberKnife(R) with doses of 35 Gy-36.25 Gy in 5 fractions. UR was prospectively…
  • High-dose proton beam therapy for sinonasal mucosal malignant melanoma

    Hiroshi Fuji
    22 Jul 2014 | 5:00 pm
    Background: The significance of definitive radiotherapy for sinonasal mucosal melanoma (SMM) is sill controvertial. This study was to evaluate the role of high-dose proton beam therapy (PBT) in patients with SMM. Methods: The cases of 20 patients with SMM localized to the primary site who were treated by PBT between 2006 and 2012 were retrospectively analyzed. The patterns of overall survival and morbidity were assessed. Results: The median follow-up time was 35 months (range, 6-77 months). The 5-year overall and disease-free survival rates were 51% and 38%, respectively. Four patients showed…
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    WordPress Tag: X-Ray

  • LE rendez-vous

    Alex
    30 Jun 2014 | 9:59 am
    (First of all, sorry for those who got an email saying this was published and that it isn’t accessible… I was on my iPhone at the airport and hit “publish” instead of “save”. And now I’m finishing it off on a city bus) So we’re on our way to Baltimore for the LDSF conference, and evidently someone in Baltimore has upset the transportation gods because our flight is cancelled and we’ve been rebooked on connecting flights and it’s not too big a deal (but I do know we’re not the only ones with transit problems today…). So…
  • Bed Space 20: Monday 1st October 2012

    escarr15
    30 Jun 2014 | 9:39 am
    I’ve made it to October!! Yes, I am back to updating you on my stay in hospital back in 2012, and Monday 1st October was my last day in hospital. Hooray! But first there are some events from Sunday night that I forgot to mention in my last post, namely the arrival of another, much smaller, patient. She must have been about 4 and was due to be admitted around 7pm, but I think she was late. Anyway, she was in the bed next to me and one of her parents stayed (I think her father because her pregnant mother stayed in Gassiot House and wasn’t impressed). I don’t actually know…
  • Not a Typical Day at the Office: Application Engineers Taking Steps to Improve Customer Experience

    Carestream Health
    30 Jun 2014 | 6:35 am
    Laurie Cesar, Application Engineer, DMS, Carestream Health Jenn Thwaits, Application Engineer, DMS, Carestream Health Customers have never had more access to information than they do today. Everything they need is at their fingertips- product reviews, testimonials, competitor information. It’s a key factor driving companies to deliver stronger incentives to their customers because if they can’t provide them with what they want, someone else can and will. Staying at the forefront of technology in this day and age is almost impossible as it seems to change daily, but keeping your customers…
  • Amanda and Nick Nance

    Lee Smathers
    30 Jun 2014 | 12:48 am
      Amanda, 2013 Nick, 2013 Amanda and Nick, 2013 Technique: Taken With: 8×10 Korona,12″ Goerz Dagor Fuji HR-A (Green Sensitive X-Ray) Processed with: Rodinal 1:100 for 4 min. in tanks and hangers 8×10 Contact Print on: Fomabrom 111, D-72 1:2 2 min. + Kodak Selenium Toner 1:20 4 min. While I tried my best to preserve the natural tones, contrast, and density of the original black and white contact print, some of it is obviously lost in this scanned reproduction. It is, however, very close to being correctly represented. The Story Behind the Picture: Back when I wasn’t too sure…
  • 8- Ghost Dad

    Why Would You Make This?
    29 Jun 2014 | 10:18 pm
    8- Ghost Dad We try to figure out what’s more important: Being a Ghost, Being a Dad, or Being
 
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    Sumer's Radiology Blog

  • 18F-Sodium Fluoride PET Imaging of Osseous Metastatic Disease

    Sumer Sethi
    27 Jul 2014 | 11:08 am
    Article in AJR by Curtis G Mick et al,review details the history, pharmacokinetics, and utility of 18F-sodium fluoride (Na18F) PET/CT in detecting osseous metastases compared with the current standard of care, technetium-99m methylene diphosphonate (99mTc-MDP) bone scintigraphy.  They concluded that Na18F PET/CT is the most comprehensive imaging modality for the evaluation of osseous metastatic diseaseRead More: http://www.ajronline.org/doi/abs/10.2214/AJR.13.12158From Sumer's Radiology Site http://www.sumerdoc.blogspot.com -The Top Radiology Magazine. Teleradiology Providers at…
  • Adductor Longus Tear-MRI

    Sumer Sethi
    27 Jul 2014 | 10:32 am
    Football player-injury, shows evidence of altered signal intensity along with fluid signal and discontinuity in adductor longus proximal part, particularly in the pubic insertion along with retraction of the muscle belly, suggesting tear.  From Sumer's Radiology Site http://www.sumerdoc.blogspot.com -The Top Radiology Magazine. Teleradiology Providers at www.teleradproviders.com Mail us at sales@teleradproviders.com
  • Prostatic utricle cyst-MRI

    Sumer Sethi
    27 Jul 2014 | 9:57 am
    Prostatic utricle cyst is a rare midline cystic lesion between the urinary bladder and the rectum. Cystic enlargement of prostatic utricle is a vestigial remnant of mullerian ductDifferential diagnoses include mullerian duct cyst.  However, mullerian duct cyst though may be connected to the verumontanum by a stalk; it does not communicate with the posterior urethra, present late in life and is not associated with genitourinary anomalies.From Sumer's Radiology Site http://www.sumerdoc.blogspot.com -The Top Radiology Magazine. Teleradiology Providers at www.teleradproviders.com Mail us at…
  • Urinary Bladder Herniation into Inguinal canal

    Sumer Sethi
    23 Jul 2014 | 6:52 am
    This is a 67 year old male with prostatomegaly and shows herniation of urinary bladder into the right inguinal canal, this is a relatively uncommon but not a rare condition. It occurs when the urinary bladder or ureter herniates into the inguinal canal, scrotal sac or femoral canal.  Differential  includes:'bladder ears' - in young infants, normal protrusion of lateral aspect of bladder is seen into the inguinal canal.From Sumer's Radiology Site http://www.sumerdoc.blogspot.com -The Top Radiology Magazine. Teleradiology Providers at www.teleradproviders.com Mail us at…
  • Health Ministers Speaks Against Cut Practice in Diagnostic centres

    Sumer Sethi
    23 Jul 2014 | 1:41 am
    Times of India reports: Health Minister  Harsh Vardhan expresses concern over a likely "cartelization" among diagnostic centres and pathological laboratories in Delhi.  According to the report health minister told Lok Sabha that patients are subjected to unnecessary tests by the doctors who are guided by the "lucre of commissions" offered by diagnostic centres. ReferenceTimes of IndiaFrom Sumer's Radiology Site http://www.sumerdoc.blogspot.com -The Top Radiology Magazine. Teleradiology Providers at www.teleradproviders.com Mail us at sales@teleradproviders.com
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    Ultrasound Technician Center

  • High Intensity Focused Ultrasound, its Effect on Medicine

    Lisa Parmley
    25 Jul 2014 | 3:48 am
    High intensity focused ultrasound is a non-invasive procedure that is similar to focusing the sun on a leaf with a magnifying glass. While the process is not intended to boil an organ, more physicians are seeking out this method to heat up and denature the affected tissues. The procedure can, theoretically, be performed inside an […] The post High Intensity Focused Ultrasound, its Effect on Medicine appeared first on Ultrasound Technician Center.
  • Qualities of a Successful Sonography Student

    Lisa Parmley
    24 Jul 2014 | 12:52 am
    One of the first steps people take before deciding on a career is reviewing educational and professional requirements, average salaries and employment opportunities. However, it is just as important to consider the ideal personal qualities that increase the chances of success while attending school and working. A Diagnostic Medical Sonography student who has the right […] The post Qualities of a Successful Sonography Student appeared first on Ultrasound Technician Center.
  • Advice for Sonography Students

    Lisa Parmley
    19 Jul 2014 | 5:20 am
    One of the attractions of Diagnostic Medical Sonography is that sonography students can start a healthcare career with an associate degree that only takes two years to earn. However, it is important to consider more than training time before settling on sonography as a career choice. Doing research on all aspects of the training and […] The post Advice for Sonography Students appeared first on Ultrasound Technician Center.
  • Boy or Girl? Is it Possible to Know at 12 Weeks?

    Lisa Parmley
    8 Jul 2014 | 6:27 am
    For centuries, people have been proclaiming that they have the ability to predict the sex of a baby while it is still developing in the womb. Some people believe that the way a woman is carrying her baby can indicate the fetus’ sex as well as her mood, the state of her hair or skin, […] The post Boy or Girl? Is it Possible to Know at 12 Weeks? appeared first on Ultrasound Technician Center.
  • Who Uses a Pocket Ultrasound Machine?

    Lisa Parmley
    1 Jul 2014 | 12:45 am
    There is a newcomer to the field of ultrasound technology: pocket ultrasound devices. For many physicians across the country, this tiny machine has been a part of normal physical exam tools in both hospital and outpatient clinic settings. Although pocket ultrasound devices are not necessarily standard in every healthcare environment, more physicians and sonographers are […] The post Who Uses a Pocket Ultrasound Machine? appeared first on Ultrasound Technician Center.
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