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    American Journal of Neuroradiology current issue

  • Diffusion-Weighted MRI "Claw Sign" Improves Differentiation of Infectious from Degenerative Modic Type 1 Signal Changes of the Spine [SPINE]

    Patel, K. B., Poplawski, M. M., Pawha, P. S., Naidich, T. P., Tanenbaum, L. N.
    14 Aug 2014 | 8:01 am
    BACKGROUND AND PURPOSE: Modic type 1 degenerative signal changes can mimic/suggest infection, leading to additional costly and sometimes invasive investigations. This retrospective study analyzes the utility and accuracy of a novel, diffusion-weighted "claw sign" for distinguishing symptomatic type 1 degeneration from vertebral diskitis/osteomyelitis. MATERIALS AND METHODS: Seventy-three patients with imaging features resembling type 1 degeneration were classified clinically into 3 groups: true degenerative type 1 changes (n = 33), confirmed diskitis/osteomyelitis (n = 20), and radiologically…
  • Level 1 EBM Expedited Review [EDITORIALS]

    Ross, J. S.
    14 Aug 2014 | 8:01 am
  • Prevalence and Spectrum of In Utero Structural Brain Abnormalities in Fetuses with Complex Congenital Heart Disease [PEDIATRICS]

    Brossard-Racine, M., du Plessis, A. J., Vezina, G., Robertson, R., Bulas, D., Evangelou, I. E., Donofrio, M., Freeman, D., Limperopoulos, C.
    14 Aug 2014 | 8:01 am
    BACKGROUND AND PURPOSE: Brain injury is a major complication in neonates with complex congenital heart disease. Preliminary evidence suggests that fetuses with congenital heart disease are at greater risk for brain abnormalities. However, the nature and frequency of these brain abnormalities detected by conventional fetal MR imaging has not been examined prospectively. Our primary objective was to determine the prevalence and spectrum of brain abnormalities detected on conventional clinical MR imaging in fetuses with complex congenital heart disease and, second, to compare the congenital…
  • Functional Anatomy of Essential Tremor: Lessons from Neuroimaging [REVIEW ARTICLES]

    Klaming, R., Annese, J.
    14 Aug 2014 | 8:01 am
    SUMMARY: The neuropathogenetic processes underlying essential tremor appear to cause subtle morphologic changes in neural networks that include multiple brain structures, primarily the cerebellum, brain stem, frontal lobes, and thalamus. One of the main challenges of neuroimaging in essential tremor is differentiating disease-specific markers from the spectrum of structural changes that occur due to aging. This review discusses recent neuroimaging studies in the light of current knowledge of the neuropsychology and pathology of the disease. We suggest that the application of multiple…
  • Analysis of Hemodynamics and Aneurysm Occlusion after Flow-Diverting Treatment in Rabbit Models [INTERVENTIONAL]

    Cebral, J. R., Mut, F., Raschi, M., Hodis, S., Ding, Y.- H., Erickson, B. J., Kadirvel, R., Kallmes, D. F.
    14 Aug 2014 | 8:01 am
    BACKGROUND AND PURPOSE: Predicting the outcome of flow diversion treatment of cerebral aneurysms remains challenging. Our aim was to investigate the relationship between hemodynamic conditions created immediately after flow diversion and subsequent occlusion of experimental aneurysms in rabbits. MATERIALS AND METHODS: The hemodynamic environment before and after flow-diversion treatment of elastase-induced aneurysms in 20 rabbits was modeled by using image-based computational fluid dynamics. Local aneurysm occlusion was quantified by using a voxelization technique on 3D images acquired 8…
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    BMC Medical Imaging - Latest Articles

  • Validation of a measuring technique with computed tomography for cement penetration into trabecular bone underneath the tibial tray in total knee arthroplasty on a cadaver model

    Hennie Verburg
    26 Aug 2014 | 5:00 pm
    Background: In total knee arthroplasty (TKA), cement penetration between 3 and 5 mm beneath the tibial tray is required to prevent loosening of the tibia component. The objective of this study was to develop and validate a reliable in vivo measuring technique using CT imaging to assess cement distribution and penetration depth in the total area underneath a tibia prosthesis. Methods: We defined the radiodensity ranges for trabecular tibia bone, polymethylmethacrylate (PMMA) cement and cement-penetrated trabecular bone and measured the percentages of cement penetration at various depths after…
  • Masked smoothing using separable kernels for CT perfusion images

    David Wack
    20 Aug 2014 | 5:00 pm
    Background: CT perfusion images have a high contrast ratio between voxels representing different anatomy, such as tissue or vessels, which makes image segmentation of tissue and vascular regions relatively easy. However, grey and white matter tissue regions have relatively low values and can suffer from poor signal to noise ratios. While smoothing can improve the image quality of the tissue regions, the inclusion of much higher valued vascular voxels can skew the tissue values. It is thus desirable to smooth tissue voxels separately from other voxel types, as has been previously implemented…
  • The use of PET-MRI in the follow-up after radiofrequency- and microwave ablation of colorectal liver metastases

    Karin Nielsen
    7 Aug 2014 | 5:00 pm
    Background: Thermal ablation of colorectal liver metastases (CRLM) may result in local progression, which generally appear within a year of treatment. As the timely diagnosis of this progression allows potentially curative local treatment, an optimal follow-up imaging strategy is essential. PET-MRI is a one potential imaging modality, combining the advantages of PET and MRI. The aim of this study is evaluate fluorine-18 deoxyglucose positron emission tomography (FDG) PET-MRI as a modality for detection of local tumor progression during the first year following thermal ablation, as compared to…
  • Diffusion-weighted MRI characteristics of the cerebral metastasis to brain boundary predicts patient outcomes

    Rasheed Zakaria
    2 Aug 2014 | 5:00 pm
    Background: Diffusion-weighted MRI (DWI) has been used in neurosurgical practice mainly to distinguish cerebral metastases from abscess and glioma. There is evidence from other solid organ cancers and metastases that DWI may be used as a biomarker of prognosis and treatment response. We therefore investigated DWI characteristics of cerebral metastases and their peritumoral region recorded pre-operatively and related these to patient outcomes. Methods: Retrospective analysis of 76 cases operated upon at a single institution with DWI performed pre-operatively at 1.5T. Maps of apparent diffusion…
  • 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…
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    Cardiovascular Ultrasound - Latest Articles

  • Intima media thickness, pulse wave velocity, and flow mediated dilation

    Rosa Maria Bruno
    22 Aug 2014 | 5:00 pm
    The identification of vascular alterations at the sub-clinical, asymptomatic stages are potentially useful for screening, prevention and improvement of cardiovascular risk stratification beyond classical risk factors.Increased intima-media thickness of the common carotid artery is a well-known marker of early atherosclerosis, which significantly correlates with the development of cardiovascular diseases. More recently, other vascular parameters evaluating both structural and functional arterial proprieties of peripheral arteries have been introduced, for cardiovascular risk stratification and…
  • 3D Strain helps relating LV function to LV and structure in athletes

    Laura Stefani
    11 Aug 2014 | 5:00 pm
    IntroductionThe evaluation of cardiac contraction could benefit from a connection with the underlying helical structure of cardiac fibers in athletes either completely healthy or with minor common cardiopathies like Bicuspid Aortic Valve (BAV). This study aims to exploit the potential role of 3D strain to improve the physiological understanding of LV function and modification due to physical activity as a comparative model. Methods: Three age-matched groups of young (age 20.3 ± 5.4) individuals are prospectively enrolled: 15 normal healthy subjects, 15 healthy athletes, and 20 athletes…
  • Assessment of left atrial volume before and after pulmonary thromboendarterectomy in chronic thromboembolic pulmonary hypertension

    Nicholas Marston
    10 Aug 2014 | 5:00 pm
    Background: Impaired left ventricular diastolic filling is common in chronic thromboembolic pulmonary hypertension (CTEPH), and recent studies support left ventricular underfilling as a cause. To investigate this further, we assessed left atrial volume index (LAVI) in patients with CTEPH before and after pulmonary thromboendarterectomy (PTE). Methods: Forty-eight consecutive CTEPH patients had pre- & post-PTE echocardiograms and right heart catheterizations. Parameters included mean pulmonary artery pressure (mPAP), pulmonary vascular resistance (PVR), cardiac index, LAVI, & mitral…
  • Elevated level of plasma endothelin-1 in patients with atrial septal defect

    Monika Komar
    5 Aug 2014 | 5:00 pm
    Background: The study aimed to assess the level of plasma Endothelin-1 (ET-1) in patients before and after transcatheter closure of atrial septal defect (ASD) and to evaluate the usefulness of measuring ET-1 levels for the diagnosis and selection of candidates for ASD closure. Methods: 80 patients (55 F, 25 M), mean age 42,2 ± 11,5 years were enrolled for an attempt at ASD closure. A group of 19 healthy volunteers, (12 F, 7 M) mean age 39.2 ± 9.15 served as controls. All ASD patients underwent: clinical and echocardiographic study and cardiopulmonary exercise test. ET-1 levels…
  • Left atrial dysfunction detected by speckle tracking in patients with systemic sclerosis

    Gergely Agoston
    4 Aug 2014 | 5:00 pm
    Background: Cardiac involvement is a relevant clinical finding in systemic sclerosis (SSc) and is associated with poor prognosis. Left atrial (LA) remodeling and/or dysfunction can be an early sign of diastolic dysfunction. Two-dimensional speckle tracking echocardiography (STE) is a novel and promising tool for detecting very early changes in LA myocardial performance.AimTo assess whether STE strain parameters may detect early alterations in LA function in SSc patients. Methods: Forty-two SSc patients (Group 1, age 50 ± 14 years, 95% females) without clinical evidence for cardiac…
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    Journal of Vascular and Interventional Radiology

  • Percutaneous Sclerotherapy of a Fingertip High-Flow Arteriovenous Malformation with Ethanol plus Lipiodol

    Nobuyuki Kawai, Morio Sato, Hiroki Minamiguchi, Akira Ikoma, Hiroki Sanda, Motoki Nakai, Tetsuo Sonomura
    31 Aug 2014 | 5:00 pm
    It is difficult to eradicate high-flow arteriovenous malformations (AVMs) safely, and the treatment options are very challenging (1–4). A 60-year-old woman presented with a fingertip high-flow AVM (Fig, a). Although she previously underwent surgical ligation, the size of the AVM and pain gradually increased. She underwent embolization with N-butyl cyanoacrylate, which had no effect on the size of the AVM. Percutaneous sclerotherapy with a mixture of ethanol plus ethiodized oil (Lipiodol; Guerbet, Roissy, France) was performed 1 week later.
  • Endovascular Use of Laparoscopic Babcock Graspers

    Jeffery M. Meadows, Brian H. Ching, Benjamin D. Tabak
    31 Aug 2014 | 5:00 pm
    An 83-year-old man with a 5-cm abdominal aortic aneurysm with extension into the bilateral common iliac arteries underwent endovascular aneurysm repair with an AFX Endovascular AAA System (Endologix, Irvine, California). The distal end of an extension limb deployed in the left common iliac artery would not fully expand (Fig 1, arrowheads). Angiography revealed the graft terminating beyond the intended landing zone, partially covering the origin of the internal iliac artery, which was dominant, and resulting in decreased flow (Fig 1).
  • Hook, Line, and Sinker: Hook Wire Localization of a Retained Suture Needle in the Perineum

    Maureen P. Kohi, David M. Naeger, Melinda J. Lorenson, Andrew G. Taylor, K. Pallav Kolli, Nicholas Fidelman, Robert K. Kerlan
    31 Aug 2014 | 5:00 pm
    Despite efforts to minimize the incidence of retained surgical instruments, this complication continues to occur in approximately 1 in 8,000–18,000 of all operations (1). Preoperative localization of breast lesions with a hook wire has become a standard radiologic practice (2). This technique is advantageous because the needle is accurately positioned under imaging guidance, and when deployed, the hook maintains the wire in position until the patient can undergo surgical resection of the suspicious lesion.
  • Table of Contents

    31 Aug 2014 | 5:00 pm
  • Forthcoming Articles: October 2014

    31 Aug 2014 | 5:00 pm
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    Human Brain Mapping

  • Cognitive impairment and resting-state network connectivity in Parkinson's disease

    Hugo-Cesar Baggio, Bàrbara Segura, Roser Sala-Llonch, Maria-José Marti, Francesc Valldeoriola, Yaroslau Compta, Eduardo Tolosa, Carme Junqué
    27 Aug 2014 | 10:13 pm
    Abstract The purpose of this work was to evaluate changes in the connectivity patterns of a set of cognitively relevant, dynamically interrelated brain networks in association with cognitive deficits in Parkinson's disease (PD) using resting-state functional MRI. Sixty-five nondemented PD patients and 36 matched healthy controls were included. Thirty-four percent of PD patients were classified as having mild cognitive impairment (MCI) based on performance in attention/executive, visuospatial/visuoperceptual (VS/VP) and memory functions. A data-driven approach using independent component…
  • Brain size, sex, and the aging brain

    Lutz Jäncke, Susan Mérillat, Franziskus Liem, Jürgen Hänggi
    26 Aug 2014 | 10:28 pm
    Abstract This study was conducted to examine the statistical influence of brain size on cortical, subcortical, and cerebellar compartmental volumes. This brain size influence was especially studied to delineate interactions with Sex and Age. Here, we studied 856 healthy subjects of which 533 are classified as young and 323 as old. Using an automated segmentation procedure cortical (gray and white matter [GM and WM] including the corpus callosum), cerebellar (GM and WM), and subcortical (thalamus, putamen, pallidum, caudatus, hippocampus, amygdala, and accumbens) volumes were measured and…
  • Right prefrontal and ventral striatum interactions underlying impulsive choice and impulsive responding

    Brendan Behan, Adam Stone, Hugh Garavan
    26 Aug 2014 | 5:09 am
    Abstract Although a multifaceted concept, many forms of impulsivity may originate from interactions between prefrontally-mediated cognitive control mechanisms and limbic, reward or incentive salience approach processes. We describe a novel task that combines reward and control processes to probe this putative interaction. The task involves elements of the monetary incentive delay task (Knutson et al., [2000]: Neuroimage 12:20–27) and the Go/No-Go task (Garavan et al., [1999]: Neuroimage 17:1820–1829) and requires human subjects to make fast responses to targets for financial reward but to…
  • The role of iron in gray matter degeneration in Huntington's disease: A magnetic resonance imaging study

    Cristina Sánchez-Castañeda, Ferdinando Squitieri, Margherita Di Paola, Michael Dayan, Martina Petrollini, Umberto Sabatini
    21 Aug 2014 | 7:38 am
    Abstract In Huntington's disease, iron accumulation in basal ganglia accompanies neuronal loss. However, if iron content changes with disease progression and how it relates to gray matter atrophy is not clear yet. We explored iron content in basal ganglia and cortex and its relationship with gray matter volume in 77 mutation carriers [19 presymptomatic, 8 with soft symptoms (SS), and 50 early-stage patients) and 73 matched-controls by T2*relaxometry and T1-weighted imaging on a 3T scanner. The ANCOVA model showed that iron accumulates in the caudate in presymptomatic subjects (P = 0.004)…
  • Overlapping patterns of brain activation to food and cocaine cues in cocaine abusers

    Dardo Tomasi, Gene-Jack Wang, Ruiliang Wang, Elisabeth C. Caparelli, Jean Logan, Nora D. Volkow
    20 Aug 2014 | 9:23 pm
    Abstract Cocaine, through its activation of dopamine (DA) signaling, usurps pathways that process natural rewards. However, the extent to which there is overlap between the networks that process natural and drug rewards and whether DA signaling associated with cocaine abuse influences these networks have not been investigated in humans. We measured brain activation responses to food and cocaine cues with fMRI, and D2/D3 receptors in the striatum with [11C]raclopride and Positron emission tomography in 20 active cocaine abusers. Compared to neutral cues, food and cocaine cues increasingly…
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    Journal of Clinical Ultrasound

  • Sonographic appearances of cervical lymph nodes in healthy young Japanese adults: Association with age, sex, and body mass index

    Hizuru Osanai, Hiroko Kuroiwa, Keiichi Uchida, Hideaki Kagami, Kazuhiro Yamada, Akira Taguchi
    25 Aug 2014 | 11:20 pm
    ABSTRACT PurposeWe investigated whether there was any association between age, sex, and body mass index (BMI) and nodal morphology and vascular pattern in healthy young Japanese adults. MethodsThree neck regions in 100 healthy subjects, 19–40 years old, were examined by gray-scale and color Doppler sonography. Vascular pattern was classified into three groups: avascular, hilar, or scattered. A linear mixed-effect model was used to identify associations of age, sex, or BMI with the short-axis diameter and the short-to-long axis diameter ratio (S/L). A cumulative link mixed model was used to…
  • Procedural sedation and analgesia as an adjunct to periprostatic nerve block for prostate biopsy: A prospective randomized trial

    Tünkut Doğanca, Abdurrahman Savsin, Sarper Erdoğan, Fatis Altindas, Fatih Özdemir, Birsel Ekici, Can Öbek
    25 Aug 2014 | 11:20 pm
    ABSTRACT BackgroundTo assess whether patient comfort could be increased by adding procedural sedation and analgesia (PSAA) to periprostatic nerve block (PNB) in patients undergoing transrectal ultrasound-guided prostatic biopsy (TRUS-PB). MethodsThis was a prospective, randomized (1:2) trial comparing PNB with the combination of PSAA+PNB in patients undergoing TRUS-PB. PNB was achieved by using lidocaine gel and lidocaine and bipuvacaine infiltration. PSAA-treated patients received midazolam and remifentanil. All biopsies were standardized and performed in a fully equipped endourology suite.
  • Intraoperative ultrasound to facilitate removal of a submucosal foreign body

    Matthew E. Smith, Faruque Riffat, Laurence H. Berman, Piyush Jani
    22 Aug 2014 | 4:02 am
    ABSTRACT A 61-year-old man with a history of fish bone ingestion and poorly localized symptoms was seen. His clinical examination was unremarkable, but CT demonstrated a foreign body deeply embedded within his tongue. Intraoperative ultrasound (US) guidance facilitated identification of a bone, allowing a needle to be placed as a guide to dissection. Repeat US scanning through the incision permitted precisely targeted surgery. CT and US are the most effective imaging techniques for localizing fish bones. Intraoperative US can be used to accurately locate a submucosal fish bone in mobile…
  • Thyroid volume and doppler evaluation of inferior thyroid artery in ultrasound: Comparison between current and previous users of oral contraceptives

    Tiago Severo Garcia, Tatiana Helena Rech
    21 Aug 2014 | 12:13 am
    ABSTRACT BackgroundThis study aimed to compare thyroid volume and Doppler sonographic evaluation of the inferior thyroid artery using ultrasound in current and previous users of oral contraceptives (OCs). MethodsWe evaluated 119 women who either currently use (n = 66) or have previously used OCs (n = 53) using color Doppler ultrasound for thyroid volume and resistance index, peak-systolic, and end-diastolic velocities of the inferior thyroid artery. Previous OC users were divided into two groups: previous OC use for <1 year and previous OC use for ≥1 year. ResultsA comparison of…
  • Sonographic appearance of thyroid glands in patients treated with intensity-modulated radiotherapy or conventional radiotherapy for nasopharyngeal carcinoma

    Sammy C.H. Cheng, Vincent W.C. Wu, Dora L.W. Kwong, C.Y. Lui, Ashley C.K. Cheng, Brian C.W. Kot, Michael T.C. Ying
    19 Aug 2014 | 5:18 am
    ABSTRACT BackgroundThis study aimed to investigate the sonographic appearances of the thyroid glands in nasopharyngeal carcinoma (NPC) patients whose cervical lymph nodes were treated with conventional radiotherapy (RT) or intensity-modulated radiotherapy (IMRT). The post-RT sonographic appearances of the thyroid glands in NPC patients were also correlated with the thyroid function. MethodsOne hundred and three NPC patients who had completed RT of cervical lymph nodes using the anterior cervical field, 30 NPC patients who had completed RT of cervical lymph nodes using IMRT, and 61 healthy…
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    Radiation Oncology - Latest Articles

  • The prognostic role of EZH2 expression in rectal cancer patients treated with neoadjuvant chemoradiotherapy

    Xiangjiao Meng
    26 Aug 2014 | 5:00 pm
    Background: Neoadjuvant chemoradiotherapy (nCRT) combined with surgery has been implemented as a standard treatment strategy in locally advanced rectal cancer (LARC). However, there is a wide spectrum of response to nCRT. The aim of this study was to determine whether enhancer of zeste homologue 2 (EZH2 ) expression could predict response to nCRT and outcomes for patients in LARC.MethodThe study examined the EZH2 expression in 112 biopsies by immohistochemistry. The associations between EZH2 and clinical characters were analyzed. Results: EZH2 expression in biopsy tissue was significantly…
  • Locoregional tumor failure after definitive radiation for patients with stage III non-small cell lung cancer

    Raj Rajpara
    25 Aug 2014 | 5:00 pm
    Background: Locoregional tumor failure (LRF) after definitive chemoradiation for patients with stage III NSCLC remains unacceptably high. This analysis sought to further define where LRF occurs relative to radiation dose received and pre-treatment PET scan-defined maximum standard uptake value (SUVmax). Methods: This was a retrospective study analyzing patients with stage III NSCLC treated with definitive radiation between 2006 and 2011. LRF was defined as failure within the ipsilateral lung, hilum or mediastinum. The CT simulation scan with the radiation dose distribution was registered to…
  • Long-term intra-fractional motion of the prostate using hydrogel spacer during Cyberknife® treatment for prostate cancer ¿ a case report

    Marcin Sumila
    19 Aug 2014 | 5:00 pm
    Background: There is a trend towards hypofractionated stereotactic radiotherapy (RT) in prostate cancer to apply high single doses in a few fractions. Using the Cyberknife(R) robotic system multiple non-coplanar fields are usually given with a treatment time of one hour or more. We planned to evaluate organ motion in this setting injecting a hydrogel spacer to protect the anterior rectal wallduring treatment. Methods: A 66 years old man with low risk prostate cancer was planned for robotic hypofractionated stereotactic RT. After implantation of fiducial markers and a hydrogel spacer a total…
  • Immunological aspects of radiotherapy

    Heike Scheithauer
    19 Aug 2014 | 5:00 pm
    The major objective of radiotherapy (RT) in the context of cancer treatment is the achievement of local tumor control. Traditionally, this is considered to be mediated by the induction of DNA damage, resulting in tumor cell death and abrogated clonogenic survival [1]. However, it has become more and more evident that distinct irradiation regimes as well as selected doses of ionizing radiation, and particularly the combination with immunotherapeutic approaches can induce or modulate systemic immune responses, which contribute to tumor control or inflammatory side effects, respectively. Locally…
  • Particle beam radiation therapy using carbon ions and protons for oligometastatic lung tumors

    Nor Shazrina Sulaiman
    15 Aug 2014 | 5:00 pm
    Background: A study was undertaken to analyze the efficacy and feasibility of particle beam radiation therapy (PBRT) using carbon ions and protons for the treatment of patients with oligometastatic lung tumors. Methods: A total of 47 patients with 59 lesions who underwent PBRT for oligometastatic lung tumors between 2003 and 2011 were included in this study. Patient median age was 66 (range, 39-84) years. The primary tumor site was the colorectum in 11 patients (23.4%), lung in 10 patients (21.3%) and a variety of other sites in 26 patients (55.3%). Thirty-one patients (66%) received…
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    WordPress Tag: X-Ray

  • A X-Ray of a Dress

    1 Aug 2014 | 6:59 am
  • "I haven't been everywhere but it's on my list" - Susan Sontag

    1 Aug 2014 | 1:50 am
    That is, if only they’ll let me in! Today is my day off from work and usually I would take advantage of my free time to have a bit of a lie in, but not today. This morning my alarm went off at a respectable – though by no stretch of the imagination lie-in time – 7am. I hurriedly switched it to snooze and lay in a somewhat dazed state trying to recall why exactly I should be up so early. Ah yes, today I am jumping through hoops for the Australian Immigration office. What exactly does this mean? Well, I’ll start from the beginning. Sometime in December I should be…
  • Case of the month: The power of 3D imaging

    Seaforth Oral Surgery
    30 Jul 2014 | 8:42 am
    The power of 3D imaging for the safety of third molar removal (wisdom tooth removal) A patient presented for the removal of an impacted wisdom tooth. Such case is quiet common as 90% of people have at least one impacted wisdom tooth. Impacted third molars are teeth at the back of the mouth that don’t have enough room to emerge or grow normally. The teeth either become stuck under the gum or are only able to partially break through it. As a result, this can cause feelings of pain, damage other teeth and lead to other dental problems. In such instances, impacted third molars need…
  • X-Ray Machines at Debswana to Deter Theft

    30 Jul 2014 | 4:38 am
    Employees at Debswana’s diamond mines in Botswana will soon be x-rayed as part of security measures to curb increasing instances of diamond theft and substitution. Debswana, a joint venture between De Beers and the government of Botswana , has decided to go ahead with its plans to use x-ray machines after rudimentary methods currently being used, including physical searches, have failed to deter the theft of diamonds. However, the move had been vigorously opposed by the Botswana Mining Workers Union (BMWU) saying the x-ray machines emit radiation that would pose a health hazard to…
  • DAY 26 – 29 Writersbootcampza Challenge

    Darrel H
    30 Jul 2014 | 2:55 am
    The last three days have whizzed by in a flurry of activity accompanied with a dreadful cough and so I haven’t had the time to write daily on these various topics. So I am posting them all as ONE. Wouldn’t want to block up or spam (haha) people’s news feeds. Day 26 – Friends Because I have served in many churches in different towns (and countries) I have been blessed (and that word, really does seem so fitting and not cheesy) for all the rad and interesting people I have met in my mere 34 years of living. I wouldn’t dare list names of my friends. (There may be some cyber stalkers…
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    Sumer's Radiology Blog

  • Possible Bronchopulmonary Sequestration

    Sumer Sethi
    20 Aug 2014 | 5:23 am
    This is a chest CT image of a young male with fever, recurrent cough. CT chest shows well defined area in left lower lobe with cystic component. Possibility of  sequestration was suggested in view of location and appearance, and CT angiography was suggested.  The most common appearance of sequestration  is a solid mass sometimes with cystic changes. Less frequent findings include a large cavitary lesion with an air-fluid level, a collection of many small cystic lesions containing air or fluid, or a well-defined cystic mass. Conventional CT does not consistently demonstrate the…
  • Intellectual Cowardice

    Sumer Sethi
    20 Aug 2014 | 5:01 am
    This strange topic is centre point of how successful you are likely to get in life, both in material and non-material sense. There are people who exhibit a strange kind of fear or paranoid feeling when confronted with an intellectually challenging situation, and instead of getting into a healthy debate, they close off and usually escape. The questions might relate to way things are done in the organization, or may be related to their faith or their beliefs. When challenged by a non-conformal question, some people just back off. They are afraid to discuss, and they just blurt out that they…
  • Passionate yet Detached

    Sumer Sethi
    13 Aug 2014 | 3:02 am
    This is my mantra to success and is likely to sound paradoxical to most of the readers.Most entrepreneurs are passionate about their work for sure and yet very few are able to detach themselves from it. I always wondered why top business leaders like Steve Jobs also develop a spiritual side to them and I am sure most people don’t understand this.   Now with years of being engrossed in my work, my passion with medical education and technology, I have gradually understood the art of detached passion.  Sometimes overtly passionate leaders get involved in tiny things which…
  • Hypoxic Brain Injury-MRI

    Sumer Sethi
    11 Aug 2014 | 11:53 am
    These are FLAIR MRI images of intubated, ICU patient showing hypoxic injury with hyperintense signal in the basal ganglia, thalami and hippocampus.From Sumer's Radiology Site -The Top Radiology Magazine. Teleradiology Providers at Mail us at
  • Pedunculated Cervical Fibroid Polyp

    Sumer Sethi
    11 Aug 2014 | 11:46 am
    Large polypoidal endoluminal lesion is seen in cervix with fluid in cervical cavity surrounding the lesion and this lesion appears to have extension from the endometrial cavity-pedunculated polypoidal lesion possibly  fibroid.From Sumer's Radiology Site -The Top Radiology Magazine. Teleradiology Providers at Mail us at
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    Topics in Radiography

  • How to Write a Resume for Health Care Careers

    16 Aug 2014 | 10:41 am
    Although I recently stated I was going on a Hiatus, I felt somewhat compelled to write just one more post.   Due to recent changes in my career, I’m tasked with hiring for positions not only in medical imaging, but health care specialties I don’t necessarily have a background in.  Though there is a team of […]
  • On Hiatus

    3 Aug 2014 | 9:04 am
    Just a quick post to let everyone know I’m still alive and breathing, but have been insanely busy with a new job in management.  I’ve made the transition to desk-jockey during my full-time day gig, but I still teach on an adjunct basis in the evenings.  I’ve been in my new role since April, and […]
  • “Happy Memorial Day”

    24 May 2014 | 9:20 am
    I’ve recently been promoted to a managerial role within my hospital system, and thus recently have been allowed to enjoy the freedom to have weekends off (for the most part).  This year, Memorial Day weekend happens to be my first three-day weekend, and boy, do I really feel like I need a break!  While I […]
  • Radiologic Technologist Job Hunt

    29 Mar 2014 | 10:04 am
    Today I went to Twitter and posted a slew of jobs I found in the San Diego area.  I know my fans aren’t all from around here, so I thought I would start a weekly regional job hunt covering a different region every Saturday morning from 7:00 a.m. to approximately 9:00 a.m. (or until I […]
  • #FreeJustina

    25 Mar 2014 | 11:32 am
    About 14 months ago at Boston Children’s Hospital, a teen named Justina Pelletier was removed from her parents’ custody and was moved from a traditional hospital room to a psychiatric ward.  The parents were accused of “medical child abuse”, or harming a child by pushing for unnecessary medical treatments.  She was initially brought to Boston Children’s for […]
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    Ultrasound Technician

  • Ultrasound Technician Career: Overuse Injuries are Avoidable

    Lisa Parmley
    27 Aug 2014 | 4:27 am
    Diagnostic Medical Sonographers who are experts in musculoskeletal imaging will frequently produce sonographic images of patient tendons, ligaments, joints and muscle abnormalities. The images help physicians diagnose the problem that may include tears, sprains, fluid collection, nerve entrapment, cysts and foreign bodies. The sonography student who is attending a CAAHEP accredited program learns proper ultrasound […] The post Ultrasound Technician Career: Overuse Injuries are Avoidable appeared first on Ultrasound Technician.
  • Growing Demand for Cardiovascular Sonographers

    Lisa Parmley
    25 Aug 2014 | 2:21 am
    One of the key career decisions a Diagnostic Medical Sonography student has to make concerns specialization. Sonographers can choose to take ARDMS exams in a variety of specializations that include obstetrics/gynecology, pediatric sonography, fetal echocardiography and others. As the population ages and lifestyles change, the healthcare industry is adapting in many ways. The result is […] The post Growing Demand for Cardiovascular Sonographers appeared first on Ultrasound Technician.
  • Healthy Sonographers and Exercise (with Images)

    Lisa Parmley
    24 Aug 2014 | 6:05 am
    Diagnostic Medical Sonographers have a high risk of incurring injury due to the nature of the job. The injuries are usually to tendons and muscles that are overused in repetitive motions, or strained during scanning or while shifting numerous patients each work shift. The most common injuries are sustained above the waist in the shoulders, […] The post Healthy Sonographers and Exercise (with Images) appeared first on Ultrasound Technician.
  • Educating Sonography Students for the Future

    Lisa Parmley
    21 Aug 2014 | 5:22 am
    The transformation of the health care industry is underway due to the national effort to lower health care costs by embracing technology more efficiently and effectively. Technology is changing the health care industry by enabling more accurate diagnosis through the use of non-invasive procedures. With this trend is the expansion in the use of sophisticated […] The post Educating Sonography Students for the Future appeared first on Ultrasound Technician.
  • Minority Sonographers for Culturally Aware Healthcare

    Lisa Parmley
    19 Aug 2014 | 1:06 am
    Many job listings for Diagnostic Medical Sonographers specifically say, “Minority applicants encouraged to apply.” There are two excellent reasons why that statement is added. First, America’s demographics are changing, and minorities are projected to be the majority by the year 2035 or earlier. Second, the size of the healthcare workforce is expected to significantly increase […] The post Minority Sonographers for Culturally Aware Healthcare appeared first on Ultrasound Technician.
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