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https://www.readbyqxmd.com/read/28099265/observer-agreement-of-treatment-responses-on-planar-bone-scintigraphy-in-prostate-cancer-patients-importance-of-the-lesion-assessment-method
#1
Randi F Fonager, Helle D Zacho, Signe Albertsen, Joan Fledelius, June A Ejlersen, Mette H Christensen, Ramune Aleksyniene, José A Biurrun Manresa, Lars J Petersen
PURPOSE: The aim of this study was to assess observer agreement on the evaluation of treatment responses of bone metastases by bone scintigraphy (BS) using different scoring methods in prostate cancer patients. PATIENTS AND METHODS: Sixty-three paired BS from 55 patients were included. BS was performed before and after more than 12 weeks of anticancer treatment. A panel of experienced nuclear medicine physicians from several institutions evaluated treatment response using three different methods: (a) standard clinical assessment, (b) MD Anderson criteria, and (c) Prostate Cancer Working Group 2 (PCWG-2) criteria...
January 17, 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28096725/added-value-of-contrast-enhanced-ultrasound-on-biopsies-of-focal-hepatic-lesions-invisible-on-fusion-imaging-guidance
#2
Tae Wook Kang, Min Woo Lee, Kyoung Doo Song, Mimi Kim, Seung Soo Kim, Seong Hyun Kim, Sang Yun Ha
OBJECTIVE: To assess whether contrast-enhanced ultrasonography (CEUS) with Sonazoid can improve the lesion conspicuity and feasibility of percutaneous biopsies for focal hepatic lesions invisible on fusion imaging of real-time ultrasonography (US) with computed tomography/magnetic resonance images, and evaluate its impact on clinical decision making. MATERIALS AND METHODS: The Institutional Review Board approved this retrospective study. Between June 2013 and January 2015, 711 US-guided percutaneous biopsies were performed for focal hepatic lesions...
January 2017: Korean Journal of Radiology: Official Journal of the Korean Radiological Society
https://www.readbyqxmd.com/read/28095042/gauging-the-extent-of-thyroidectomy-for-indeterminate-thyroid-nodules-an-oncologic-perspective
#3
David F Schneider, Linda M Cherney Stafford, Nicole Brys, Caprice C Greenberg, Courtney J Balentine, Dawn M Elfenbein, Susan C Pitt
INTRODUCTION: Increasing emphasis is being placed on appropriateness of care and avoidance of over- and under-treatment. Indeterminate thyroid nodules (ITN), present a particular risk for this problem because cancer found via diagnostic lobectomy (DL) often requires a completion thyroidectomy (CT). However, initial total thyroidectomy (TT) for benign ITN results in lifelong thyroid hormone replacement. We sought to measure the accuracy and factors associated with the extent of initial thyroidectomy for ITN...
January 17, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/28090817/coronary-or-ventricular-rupture-after-blunt-chest-trauma-a-clinical-dilemma
#4
Anton Sabashnikov, Guido Michels, Javid Fatullayev, Kaveh Eghbalzadeh, Mohamed Zeriouh, Stephan Baldus, Jens Wippermann, Thorsten Wahlers, Navid Madershahian
Cardiac rupture (CR) is one of the most serious and life-threatening complications of blunt chest trauma (BCT) usually associated with high mortality. Moreover, its diagnosis and treatment strategies may be extremely challenging for clinicians due to various anatomical localisations of the tear. Whereas most injuries fall under the category of right atrial ruptures, left ventricular lesions represent a rare type of this injury, with greater mortality, particularly in cases of multi-chamber injuries. However, not only cardiac chamber or great vessel ruptures may occur as a result of BCT; a growing number of reports also describe BCT-induced isolated coronary artery injuries, including ruptures...
January 1, 2017: Perfusion
https://www.readbyqxmd.com/read/28075197/validation-of-an-established-prognostic-score-after-re-irradiation-of-recurrent-glioma
#5
Kerstin A Kessel, Josefine Hesse, Christoph Straube, Claus Zimmer, Friederike Schmidt-Graf, Jürgen Schlegel, Bernhard Meyer, Stephanie E Combs
BACKGROUND: Re-irradiation (Re-RT) is offered widely in clinical routine, and has been established as a key element in the treatment of recurrent gliomas. At our center, generally re-resection is performed widely by an experienced neurosurgical team. Thus, Re-RT mostly offered to patients with macroscopic residuals or irresectable lesions, is applied later compared to other centers. Therefore, we sought to validate the Combs Prognostic Score developed in 2012 using our independent patient cohort...
January 11, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/28067615/intracranial-atherosclerosis-from-anatomy-to-pathophysiology
#6
Yuehua Pu, Linfang Lan, Xinyi Leng, Lawrence Ks Wong, Liping Liu
Background Intracranial atherosclerotic stenosis is an important etiology subtype of ischemic stroke. Stenosis severity was thought to be the main reference index for clinical treatment and research. However, stenosis could not reflect the ischemia risk completely, instead the hemodynamic state across the lesion, the extent of collateral circulation, and perfusion impairment downstream the stenosis are more important. Aims We write this review aimed to summarize novel angiographic methods applied in the evaluation of functional severity of ICAS, and commented on their limitations and prospects in future research...
January 1, 2017: International Journal of Stroke: Official Journal of the International Stroke Society
https://www.readbyqxmd.com/read/28055245/the-role-of-changes-in-maximum-standardized-uptake-value-of-fdg-pet-ct-for-post-treatment-surveillance-in-patients-with-head-and-neck-squamous-cell-carcinoma-treated-with-chemoradiotherapy-preliminary-findings
#7
Munetaka Matoba, Hiroyuki Tuji, Yuzo Shimode, Tamaki Kondo, Kiyotaka Oota, Hisao Tonami
OBJECTIVE: No clear consensus exists regarding the optimal interval and frequency of follow-up PET-CT in head and neck squamous cell carcinoma (HNSCC) patients treated with chemoradiotherapy (CRT). Here we sought to clarify whether the changes in the maximum standardized uptake value (ΔSUVmax) may be a valid parameter to help decision-making for surveillance management after CRT. METHODS: Forty patients underwent PET-CT at pretreatment and 3 months after CRT. Patients were followed by sequential PET-CT for 2 years after CRT...
January 5, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28052718/thyroid-nodule-size-at-ultrasound-as-a-predictor-of-malignancy-and-final-pathologic-size
#8
Allison Cavallo, Daniel N Johnson, Michael Geoffrey White, Saaduddin Siddiqui, Tatjana Antic, Melvy Mathew, Raymon H Grogan, Peter Angelos, Edwin L Kaplan, Nicole A Cipriani
BACKGROUND: Thyroid-related mortality has remained constant despite increasing incidence of thyroid carcinoma. Most thyroid nodules are benign, therefore, ultrasound and fine needle aspiration (FNA) are integral in cancer screening. We hypothesize that increased nodule size at ultrasound does not predict malignancy and correlation between nodule size at ultrasound and pathologic exam is good. METHODS: Resected thyroids with preoperative ultrasounds were identified...
January 4, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28048397/we-de-207b-03-influence-of-local-anatomical-variations-on-detection-of-multifocal-and-multicentric-breast-cancer
#9
G Wen, M Markey, S Park
PURPOSE: We employed a novel model observer to assess the impact of local anatomic variations on the detection of multiple breast tumors depicted on mammograms. We expect the study to be valuable for future task-based assessments and optimizations of x-ray based breast imaging techniques (e.g., digital breast tomosynthesis for diagnosis of multifocal multicentric breast cancer (MMBC)). METHODS: Regions of interest (ROIs) from four different sets of clustered lumpy background simulations were extracted as the image background...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048384/su-d-207b-06-predicting-breast-cancer-malignancy-on-dce-mri-data-using-pre-trained-convolutional-neural-networks
#10
N Antropova, B Huynh, M Giger
PURPOSE: We investigate deep learning in the task of distinguishing between malignant and benign breast lesions on dynamic contrast-enhanced MR images (DCE-MRIs), eliminating the need for lesion segmentation and extraction of tumor features. We evaluate convolutional neural network (CNN) after transfer learning with ImageNet, a database of thousands of non-medical images. METHODS: Under a HIPAA-compliant IRB protocol, a database of 551 (357 malignant and 194 benign) breast MRI cases was collected...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048017/tu-d-207b-01-a-prediction-model-for-distinguishing-radiation-necrosis-from-tumor-progression-after-gamma-knife-radiosurgery-based-on-radiomics-features-from-mr-images
#11
Z Zhang, A Ho, X Wang, P Brown, N Guha-Thakurta, S Ferguson, X Fave, L Zhang, D Mackin, L Court, J Li, J Yang
PURPOSE: To develop and validate a prediction model using radiomics features extracted from MR images to distinguish radiation necrosis from tumor progression for brain metastases treated with Gamma knife radiosurgery. METHODS: The images used to develop the model were T1 post-contrast MR scans from 71 patients who had had pathologic confirmation of necrosis or progression; 1 lesion was identified per patient (17 necrosis and 54 progression). Radiomics features were extracted from 2 images at 2 time points per patient, both obtained prior to resection...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28041869/-palliative-care-after-neonatal-intensive-care-contributions-of-leonetti-law-and-remaining-challenges
#12
P Kuhn, L Dillenseger, N Cojean, B Escande, C Zores, D Astruc
The 2005 enactment of the "Patients' rights and end-of-life care" act, known as the Leonetti law, has been accompanied by practical changes in the processes of withdrawal and withholding of active life-sustaining treatments. This law has also promoted the implementation of palliative care in perinatal medicine to avoid unreasonable therapeutic interventions and to preserve the dying patient's quality of life and human dignity. Recently, a new law has been voted by the French National Assembly and new reflections on the ethical aspects of the end of life in neonatal medicine should resume again within the French Society of Neonatology in the working group on ethical issues in neonatology...
December 29, 2016: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28041316/cyberknife-stereotactic-radiosurgery-for-the-treatment-of-symptomatic-vertebral-hemangiomas-a-single-institution-experience
#13
Michael Zhang, Yi-Ren Chen, Steven D Chang, Anand Veeravagu
OBJECTIVE Symptomatic vertebral hemangiomas (SVHs) are a very rare pathology that can present with persistent pain or neurological deficits that warrant surgical intervention. Given the relative rarity and difficulty in assessment, the authors sought to present a dedicated series of SVHs treated using stereotactic radiosurgery (SRS) to provide insight into clinical decision making. METHODS A retrospective review of a single institution's experience with hypofractionated radiosurgery for SVH from 2004 to 2011 was conducted to determine the clinical and radiographic outcomes following SRS treatment...
January 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28029667/outcomes-bronchoscopic-evaluation-in-a-university-hospital
#14
R H Ghimire, N Bhatta, P Koirala, B Bista, D R Misra, B Shah
INTRODUCTION: Study of clinical profile of the patients and diagnostic yield of the selected bronchoscopic procedures gives us important information in clinical decision making and better patient care. There are hardly very few studies regarding these entities. Therefore, we decided to study clinical characteristics and outcomes of the patients who underwent bronchoscopic evaluation in our setting. METHODS: This was a cross-sectional study the consecutive patients who underwent bronchoscopy from 1st May 2013- 30th April 2015 in division of pulmonary, critical care and sleep medicine...
October 2016: JNMA; Journal of the Nepal Medical Association
https://www.readbyqxmd.com/read/28018765/effect-of-multidisciplinary-case-conferences-on-physician-decision-making-breast-diagnostic-rounds
#15
Tianne J Foster, Antoine Bouchard-Fortier, Ivo A Olivotto, May Lynn Quan
PURPOSE: To evaluate the utility of multidisciplinary case conferences (MCCs) on physician decision making in benign and malignant breast disease management. METHODS:  Patients with interesting or challenging diagnostic or management issues were discussed at biweekly diagnostic breast MCCs. Prior to discussion, a clinical summary and intended management plan prior to the MCC was presented. For each case, diagnostic images/histopathology were centrally reviewed after which group discussion achieved a management consensus which was documented prospectively...
November 24, 2016: Curēus
https://www.readbyqxmd.com/read/28018207/neural-correlates-for-apathy-frontal-prefrontal-and-parietal-cortical-subcortical-circuits
#16
REVIEW
Rita Moretti, Riccardo Signori
Apathy is an uncertain nosographical entity, which includes reduced motivation, abulia, decreased empathy, and lack of emotional involvement; it is an important and heavy-burden clinical condition which strongly impacts in everyday life events, affects the common daily living abilities, reduced the inner goal directed behavior, and gives the heaviest burden on caregivers. Is a quite common comorbidity of many neurological disease, However, there is no definite consensus on the role of apathy in clinical practice, no definite data on anatomical circuits involved in its development, and no definite instrument to detect it at bedside...
2016: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/28017809/prevalence-of-contralateral-tumors-in-patients-with-follicular-variant-of-papillary-thyroid-cancer
#17
Michael Sullivan, Paul H Graham, Erik K Alexander, Daniel T Ruan, Matthew A Nehs, Atul A Gawande, Francis D Moore, Brooke E Howitt, Kyle C Strickland, Jeffrey F Krane, Justine A Barletta, Nancy L Cho
BACKGROUND: Thyroid lobectomy alone is increasingly being performed for patients with encapsulated follicular variant of papillary thyroid carcinoma (fvPTC). However, the prevalence of contralateral disease in these patients is unknown. Here, we investigated the presence of synchronous disease in fvPTC to improve decision making regarding the extent of surgical resection and need for surveillance. STUDY DESIGN: We performed a retrospective review of patients who underwent thyroid surgery from October 2009 to February 2013 with a diagnosis of fvPTC as their primary lesion...
December 22, 2016: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/28012553/comparison-of-percutaneous-coronary-intervention-versus-coronary-artery-bypass-grafting-for-unprotected-left-main-coronary-artery-disease
#18
REVIEW
Syed Yaseen Naqvi, Jordan Klein, Tisa Saha, Daniel J McCormick, Sheldon Goldberg
Coronary artery bypass grafting (CABG) decreases mortality in patients with significant left main (LM) coronary artery disease and for years remained the therapy of choice for patients with this ominous lesion. Advances in percutaneous coronary intervention (PCI) have enabled it to become an alternative to CABG. The results of observational registries and randomized comparisons have shown the safety and efficacy of PCI in appropriately selected patients with low or intermediate angiographic risk scores. Furthermore, the use of physiological measures of flow limitation and the use of intracoronary imaging techniques has added benefit and improved outcomes...
November 16, 2016: American Journal of Cardiology
https://www.readbyqxmd.com/read/28009716/precursors-of-pancreatic-cancer
#19
Přemysl Frič, Jan Škrha, Aleksi Šedo, Petr Bušek, Martin Laclav, Bohuš Bunganič, Miroslav Zavoral
Pancreatic cancer (PC) behaves very differently in comparison with other malignancies. Its incidence has been increasing continuously; mortality has not decreased, the diagnosis is frequently late, radical surgery is performed only in 15-20% of patients, and chemotherapy is only palliative. PC occurs in three different forms. Sporadic PC accounts for 90% of all PCs. Its most frequent form is the pancreatic ductal adenocarcinoma. The remaining 10% constitute two minority groups: familial PC (7%) and PC as a manifestation of a genetic cancer syndrome (3%)...
December 22, 2016: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28004952/the-ventral-dentate-gyrus-mediates-pattern-separation-for-reward-value
#20
Ryan A Kirk, Sarah N Redmon, Raymond P Kesner
Rats with ventral dentate gyrus (DG) lesions, sham lesions, and controls were run in a runway for 20 pellets of food. After reaching running speed asymptote, the number of pellets was reduced to 1, 9, or 17 pellets. The purpose of the present experiment was to determine whether the ventral DG subregion of the hippocampus plays a role in pattern separation for reward value. The results indicated that sham lesioned and control rats displayed a graded decrease in runway velocities, supporting a pattern separation process...
December 22, 2016: Behavioral Neuroscience
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