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https://www.readbyqxmd.com/read/29156687/distribution-of-lymph-node-metastasis-from-lymphoepithelial-like-carcinoma-of-the-parotid
#1
LiNa Yin, Xue Huang, XiaoLan Liu, YongChun Zhang, Xiaoshen Wang
Purpose: To explore the distribution of node spread from lymphoepithelial-like carcinoma (LELC) of the parotid gland based on the 2013 updated guidelines for neck node levels. Results: 42 (58.3%) cases had metastatic nodes, all were localized at the ipsilateral neck. The detailed distribution was: level Ia 0, level Ib 6(14.3%), level II 34 (80.1%), level III 16 (38.1%), level IV 9 (21.4%), level V 7 (16.7%), level VI 0, level VII 0, level VIII 37 (88.1%), level IX 0, level Xa 2 (4...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29153377/iatrogenic-iron-overload-and-its-potential-consequences-in-patients-on-hemodialysis
#2
Guy Rostoker, Nosratola D Vaziri
Iron overload was considered rare in hemodialysis patients until recently, but its clinical frequency is now increasingly recognized. The liver is the main site of iron storage and the liver iron concentration (LIC) is closely correlated with total iron stores in patients with secondary hemosiderosis and genetic hemochromatosis. Magnetic resonance imaging (MRI) is now the gold standard method for estimating and monitoring LIC. Studies of LIC in hemodialysis patients by magnetic susceptometry thirteen years ago and recently by quantitative MRI have demonstrated a relation between the risk of iron overload and the use of intravenous (IV) iron products prescribed at doses determined by the iron biomarker cutoffs contained in current anemia management guidelines...
November 16, 2017: La Presse Médicale
https://www.readbyqxmd.com/read/29151953/pancreatic-cancer-in-lynch-syndrome-patients
#3
REVIEW
Luis Bujanda, Marta Herreros-Villanueva
Although colorectal cancer (CRC) is the most common cancer type in Lynch syndrome (LS) families, patients have also increased lifetime risk of other types of tumors. The accumulated risk of pancreatic cancer (PC) in LS patients is around 3.7% and developed tumors often present a characteristically medullary appearance with prominent lymphocytic infiltration. LS patients are considered in high risk for PC development as they present 8.6-fold increase compared with the general population. Here we review PC cases reported in LS patients and current management guidelines...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/29149455/positive-effect-on-patient-experience-of-video-information-given-prior-to-cardiovascular-magnetic-resonance-imaging-a-clinical-trial
#4
Britt-Marie Ahlander, Jan Engvall, Eva Maret, Elisabeth Ericsson
AIMS: To evaluate the effect of video information given before cardiovascular magnetic resonance imaging on patient anxiety and to compare patient experiences of cardiovascular magnetic resonance imaging versus myocardial perfusion scintigraphy. To evaluate if additional information has an impact on motion artefacts. BACKGROUND: Cardiovascular magnetic resonance imaging and myocardial perfusion scintigraphy are technically advanced methods for the evaluation of heart diseases...
November 17, 2017: Journal of Clinical Nursing
https://www.readbyqxmd.com/read/29147726/-radiculomyelopathy-in-schistosomiasis
#5
REVIEW
J Detzler, H Backes, J Guldner
The increasing migration of people from their homeland in far distant regions to Europe in the last few years has strongly influenced the rise of previously rarely seen diseases. They not only originate from the respective homeland but also from the transit countries during the migration process. We report the case of a 27-year-old male migrant from Eritrea, who after months of flight as a refugee travelling through various African countries, presented at our hospital with a progressive, painful radiculopathy...
November 16, 2017: Der Nervenarzt
https://www.readbyqxmd.com/read/29138949/multiple-high-grade-gliomas-epidemiology-management-and-outcome-a-systematic-review-and-meta-analysis
#6
REVIEW
Davide Tiziano Di Carlo, Federico Cagnazzo, Nicola Benedetto, Riccardo Morganti, Paolo Perrini
Multiple high-grade gliomas (M-HGGs) are well--separated tumors, differentiated as multifocal (MF) and multicentric (MC) by their MRI features. The authors performed a systematic review and meta-analysis of literature examining epidemiology, clinical and radiological characteristics, management, and the overall survival from M-HGGs. According to PRISMA guidelines, a comprehensive review of studies published between January 1990 and January 2017 was carried out. The authors identified studies that examined the prevalence rate, clinical and radiological characteristics, treatment, and overall survival from M-HGGs in patients with HGG...
November 14, 2017: Neurosurgical Review
https://www.readbyqxmd.com/read/29136961/validation-of-the-2012-international-consensus-guidelines-using-ct-and-mri-branch-duct-and-main-duct-intraductal-papillary-mucinous-neoplasms-of-the-pancreas
#7
https://www.readbyqxmd.com/read/29135073/prostate-cancer-detection-using-quantitative-t2-and-t2-weighted-imaging-the-effects-of-5-alpha-reductase-inhibitors-in-men-on-active-surveillance
#8
Francesco Giganti, Giulio Gambarota, Caroline M Moore, Nicola L Robertson, Neil McCartan, Charles Jameson, Simon R J Bott, Mathias Winkler, Brandon Whitcher, Ramiro Castro-Santamaria, Mark Emberton, Clare Allen, Alex Kirkham
BACKGROUND: T2 -weighted imaging (T2 -WI) information has been used in a qualitative manner in the assessment of prostate cancer. Quantitative derivatives (T2 relaxation time) can be generated from T2 -WI. These outputs may be useful in helping to discriminate clinically significant prostate cancer from background signal. PURPOSE/HYPOTHESIS: To investigate changes in quantitative T2 parameters in lesions and noncancerous tissue of men on active surveillance for prostate cancer taking dutasteride 0...
November 14, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29134686/selective-proton-observed-carbon-edited-selpoce-mrs-method-for-measurement-of-glutamate-and-glutamine-13-c-labeling-in-the-human-frontal-cortex
#9
Henk M De Feyter, Raimund I Herzog, Bart R Steensma, Dennis W J Klomp, Peter B Brown, Graeme F Mason, Douglas L Rothman, Robin A de Graaf
PURPOSE: (13) C magnetic resonance spectroscopy (MRS) in combination with infusion of (13) C-labeled substrates has led to unique insights into human brain metabolism and neurotransmitter cycling. However, the low sensitivity of direct (13) C MRS and high radiofrequency power requirements has limited (13) C MRS studies to predominantly data acquisition in large volumes of the occipital cortex. The purpose of this study is to develop an MRS technique for localized detection of (13) C-labeling of glutamate and glutamine in the human frontal lobe...
November 13, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29134189/toward-uniform-implementation-of-parametric-map-digital-imaging-and-communication-in-medicine-standard-in-multisite-quantitative-diffusion-imaging-studies
#10
Dariya Malyarenko, Andriy Fedorov, Laura Bell, Melissa Prah, Stefanie Hectors, Lori Arlinghaus, Mark Muzi, Meiyappan Solaiyappan, Michael Jacobs, Maggie Fung, Amita Shukla-Dave, Kevin McManus, Michael Boss, Bachir Taouli, Thomas E Yankeelov, Christopher Chad Quarles, Kathleen Schmainda, Thomas L Chenevert, David C Newitt
This paper reports on results of a multisite collaborative project launched by the MRI subgroup of Quantitative Imaging Network to assess current capability and provide future guidelines for generating a standard parametric diffusion map Digital Imaging and Communication in Medicine (DICOM) in clinical trials that utilize quantitative diffusion-weighted imaging (DWI). Participating sites used a multivendor DWI DICOM dataset of a single phantom to generate parametric maps (PMs) of the apparent diffusion coefficient (ADC) based on two models...
January 2018: Journal of Medical Imaging
https://www.readbyqxmd.com/read/29122512/-salvage-prostate-brachytherapy-a-solution-for-local-failures-after-a-primary-radiation-therapy
#11
J-M Cosset, G Créhange
Salvage brachytherapy after a first prostate radiation therapy is an emerging technique, which has to be considered in the therapeutic armamentarium in the clinically challenging context of patients with isolated local failure from prostate cancer who may still be considered for cure. These occult failures are more and more frequently diagnosed at an early stage, thanks to targeted biopsies and advances in imaging modalities, such as multiparametric MRI and PET-CT. Salvage brachytherapy benefits from the implantation accuracy of brachytherapy procedures using 3D dosimetry and has resulted in more than 50% tumour control rates with long-term...
November 6, 2017: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/29120921/pregnancy-and-ischemic-stroke-a-practical-guide-to-management
#12
Mayte E van Alebeek, Roel de Heus, Anil M Tuladhar, Frank-Erik de Leeuw
PURPOSE OF REVIEW: Ischemic stroke during pregnancy or the puerperium is a devastating disease during a crucial period in life and warrants a specific approach. To date, current practice is mainly based on expert opinion because of a lack of randomized controlled trials and high-quality observational studies. The present review is intended as a practical guide to (acute) management of ischemic stroke during pregnancy and puerperium. RECENT FINDINGS: Recent findings showed that the incidence of stroke during pregnancy is rising...
November 7, 2017: Current Opinion in Neurology
https://www.readbyqxmd.com/read/29120023/role-of-liver-magnetic-resonance-imaging-in-hyperferritinaemia-and-the-diagnosis-of-iron-overload
#13
Axel Ruefer, Christine Bapst, Rudolf Benz, Jens Bremerich, Nathan Cantoni, Laura Infanti, Kaveh Samii, Mathias Schmid, Jean-Paul Vallée
Hyperferritinaemia is a frequent clinical problem. Elevated serum ferritin levels can be detected in different genetic and acquired diseases and can occur with or without anaemia. It is therefore important to determine whether hyperferritinaemia is due to iron overload or due to a secondary cause. The main causes of iron overload are intestinal iron hyperabsorption disorders and transfusion-dependent disorders. Iron homeostasis and iron overload are quantified by different diagnostic approaches. The evaluation of serum ferritin and transferrin saturation is the first diagnostic step to identify the cause of hyperferritinaemia...
November 9, 2017: Swiss Medical Weekly
https://www.readbyqxmd.com/read/29116405/systematic-review-of-studies-reporting-positive-surgical-margins-after-bladder-neck-sparing-radical-prostatectomy
#14
REVIEW
Mariangela Bellangino, Clare Verrill, Tom Leslie, Richard W Bell, Freddie C Hamdy, Alastair D Lamb
PURPOSE OF REVIEW: Bladder neck preservation (BNP) during radical prostatectomy (RP) has been proposed as a method to improve early recovery of urinary continence after radical prostatectomy. However, there is concern over a possible increase in the risk of positive surgical margins and prostate cancer recurrence rate. A recent systematic review and meta-analysis reported improved early recovery and overall long-term urinary continence without compromising oncologic control. The aim of our study was to perform a critical review of the literature to assess the impact on bladder neck and base margins after bladder neck sparing radical prostatectomy...
November 7, 2017: Current Urology Reports
https://www.readbyqxmd.com/read/29113660/functional-hepatic-imaging-as-a-biomarker-of-primary-and-secondary-tumor-response-to-loco-regional-therapies
#15
REVIEW
H L Lewis, M A Ghasabeh, P Khoshpouri, I R Kamel, T M Pawlik
Objective criteria to measure tumor response are a key tenet for assessment of treatment efficacy when evaluating a therapeutic modality. Several response criteria have been proposed including the Response Evaluation Criteria in Solid Tumors (RECIST), modified RECIST (mRECIST), RECIST 1-1, and European Association for the Study of the Liver (EASL) guidelines. Response following loco-regional therapies (LRT) can be particularly difficult to assess as post-treatment changes may not always relate to changes in lesion size...
December 2017: Surgical Oncology
https://www.readbyqxmd.com/read/29108821/brain-diffusion-tensor-mri-in-systematic-lupus-erythematosus-a-systematic-review
#16
REVIEW
Beatriz Lavras Costallat, Daniel Miranda Ferreira, Aline Tamires Lapa, Letícia Rittner, Lilian Tereza Lavras Costallat, Simone Appenzeller
Diffusion tensor imaging (DTI) maps the brain's microstructure by measuring fractional anisotropy (FA) and mean diffusivity (MD). This systematic review describes brain diffusion tensor Magnetic resonance imaging (MRI) studies in systemic lupus erythematosus (SLE).The literature was reviewed following the PRISMA guidelines and using the terms "lupus", "systemic lupus erythematosus", "SLE", "diffusion tensor imaging", "DTI", "white matter" (WM), "microstructural damage", "tractography", and "fractional anisotropy"; the search included articles published in English from January 2007 to April 2017...
November 3, 2017: Autoimmunity Reviews
https://www.readbyqxmd.com/read/29101995/acr-appropriateness-criteria-%C3%A2-tinnitus
#17
Marcus M Kessler, Marwan Moussa, Julie Bykowski, Claudia F E Kirsch, Joseph M Aulino, Kevin L Berger, Asim F Choudhri, Terry D Fife, Isabelle M Germano, A Tuba Kendi, Jeffrey H Kim, Michael D Luttrull, Diego Nunez, Lubdha M Shah, Aseem Sharma, Vilaas S Shetty, Sophia C Symko, Rebecca S Cornelius
Tinnitus is the perception of sound in the absence of an external source. It is a common symptom that can be related to hearing loss and other benign causes. However, tinnitus may be disabling and can be the only symptom in a patient with a central nervous system process disorder. History and physical examination are crucial first steps to determine the need for imaging. CT and MRI are useful in the setting of pulsatile tinnitus to evaluate for an underlying vascular anomaly or abnormality. If there is concomitant asymmetric hearing loss, neurologic deficit, or head trauma, imaging should be guided by those respective ACR Appropriateness Criteria(®) documents, rather than the presence of tinnitus...
November 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/29101993/acr-appropriateness-criteria-%C3%A2-staging-of-pancreatic-ductal-adenocarcinoma
#18
Aliya Qayyum, Eric P Tamm, Ihab R Kamel, Peter J Allen, Hina Arif-Tiwari, Victoria Chernyak, Tamas A Gonda, Joseph R Grajo, Nicole M Hindman, Jeanne M Horowitz, Harmeet Kaur, Michelle M McNamara, Richard B Noto, Pavan K Srivastava, Tasneem Lalani
Pancreatic adenocarcinoma is associated with poor overall prognosis. Complete surgical resection is the only possible option for cure. As such, increasingly complex surgical techniques including sophisticated vascular reconstruction are being used. Continued advances in surgical techniques, in conjunction with use of combination systemic therapies, and radiation therapy have been suggested to improve outcomes. A key aspect to surgical success is reporting of pivotal findings beyond absence of distant metastases, such as tumor size, location, and degree of tumor involvement of specific vessels associated with potential perineural tumor spread...
November 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/29101992/acr-appropriateness-criteria-%C3%A2-sinonasal-disease
#19
Claudia F E Kirsch, Julie Bykowski, Joseph M Aulino, Kevin L Berger, Asim F Choudhri, David B Conley, Michael D Luttrull, Diego Nunez, Lubdha M Shah, Aseem Sharma, Vilaas S Shetty, Rathan M Subramaniam, Sophia C Symko, Rebecca S Cornelius
Imaging of sinonasal pathology may occur for assessment of rhinosinusitis or mass lesions. Rhinosinusitis is prevalent in up to 16% of the US population with annual economic burdens estimated at 22 billion dollars. Rhinosinusitis is characterized as acute or chronic based on symptom duration; if four or more episodes occur annually, the term recurrent acute rhinosinusitis (RARS) is used. In acute uncomplicated rhinosinusitis when inflammatory change remains in the paranasal sinuses and nasal cavity, imaging may not be required...
November 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/29101991/acr-appropriateness-criteria-%C3%A2-renovascular-hypertension
#20
Howard J Harvin, Nupur Verma, Paul Nikolaidis, Michael Hanley, Vikram S Dogra, Stanley Goldfarb, John L Gore, Stephen J Savage, Michael L Steigner, Richard Strax, Myles T Taffel, Jade J Wong-You-Cheong, Don C Yoo, Erick M Remer, Karin E Dill, Mark E Lockhart
Renovascular hypertension is the most common type of secondary hypertension and is estimated to have a prevalence between 0.5% and 5% of the general hypertensive population, and an even higher prevalence among patients with severe hypertension and end-stage renal disease, approaching 25% in elderly dialysis patients. Investigation for renal artery stenosis is appropriate when clinical presentation suggests secondary hypertension rather than primary hypertension, when there is not another known cause of secondary hypertension, and when intervention would be carried out if a significant renal artery stenosis were identified...
November 2017: Journal of the American College of Radiology: JACR
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