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https://www.readbyqxmd.com/read/29236202/sentinel-lymph-node-biopsy-and-management-of-regional-lymph-nodes-in-melanoma-american-society-of-clinical-oncology-and-society-of-surgical-oncology-clinical-practice-guideline-update
#1
Sandra L Wong, Mark B Faries, Erin B Kennedy, Sanjiv S Agarwala, Timothy J Akhurst, Charlotte Ariyan, Charles M Balch, Barry S Berman, Alistair Cochran, Keith A Delman, Mark Gorman, John M Kirkwood, Marc D Moncrieff, Jonathan S Zager, Gary H Lyman
PURPOSE: To update the American Society of Clinical Oncology (ASCO)-Society of Surgical Oncology (SSO) guideline for sentinel lymph node (SLN) biopsy in melanoma. METHODS: An ASCO-SSO panel was formed, and a systematic review of the literature was conducted regarding SLN biopsy and completion lymph node dissection (CLND) after a positive sentinel node in patients with melanoma. RESULTS: Nine new observational studies, two systematic reviews and an updated randomized controlled trial (RCT) of SLN biopsy, as well as two randomized controlled trials of CLND after positive SLN biopsy, were included...
December 13, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29235194/dual-sensitivity-multiple-sclerosis-lesion-and-csf-segmentation-for-multichannel-3t-brain-mri
#2
Dominik S Meier, Charles R G Guttmann, Subhash Tummala, Nicola Moscufo, Michele Cavallari, Shahamat Tauhid, Rohit Bakshi, Howard L Weiner
BACKGROUND AND PURPOSE: A pipeline for fully automated segmentation of 3T brain MRI scans in multiple sclerosis (MS) is presented. This 3T morphometry (3TM) pipeline provides indicators of MS disease progression from multichannel datasets with high-resolution 3-dimensional T1-weighted, T2-weighted, and fluid-attenuated inversion-recovery (FLAIR) contrast. 3TM segments white (WM) and gray matter (GM) and cerebrospinal fluid (CSF) to assess atrophy and provides WM lesion (WML) volume. METHODS: To address nonuniform distribution of noise/contrast (eg, posterior fossa in 3D-FLAIR) of 3T magnetic resonance imaging, the method employs dual sensitivity (different sensitivities for lesion detection in predefined regions)...
December 13, 2017: Journal of Neuroimaging: Official Journal of the American Society of Neuroimaging
https://www.readbyqxmd.com/read/29234959/olfactory-cortex-and-olfactory-bulb-volume-alterations-in-patients-with-post-infectious-olfactory-loss
#3
Linyin Yao, Xiaoli Yi, Jayant Marian Pinto, Xiandao Yuan, Yichen Guo, Yifan Liu, Yongxiang Wei
Upper respiratory tract infection (URI) is one of the most common etiology of olfactory loss. Previous studies demonstrated that both olfactory bulb (OB) volume and sulcus (OS) depth decreased in patients with post-infectious olfactory loss (PIOL) compared to normal controls. The aim of our study was to observe alterations of central olfactory pathways in patients with PIOL. T1 weighted magnetic resonance images were acquired in 19 PIOL patients and 19 age- and sex-matched control subjects on a 3 T scanner...
December 13, 2017: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/29234941/short-term-surgical-outcomes-of-a-randomized-controlled-trial-comparing-laparoscopic-versus-open-gastrectomy-with-d2-lymph-node-dissection-for-advanced-gastric-cancer
#4
Yan Shi, Xianhui Xu, Yongliang Zhao, Feng Qian, Bo Tang, Yingxue Hao, Huaxing Luo, Jun Chen, Peiwu Yu
BACKGROUND: Laparoscopy-assisted gastrectomy (LAG) has gained acceptance as one of the best treatments for early gastric cancer. However, the application of LAG with D2 lymph node dissection in patients with locally advanced gastric cancer (AGC) remains controversial. METHODS: We launched a prospective randomized controlled trial comparing laparoscopic and open gastrectomy with D2 lymph node dissection for locally AGC to evaluate technical safety and oncologic feasibility...
December 12, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/29234923/non-inferiority-multicenter-prospective-randomized-controlled-study-of-rectal-cancer-t2-t3s-superficial-n0-m0-undergoing-neoadjuvant-treatment-and-local-excision-tem-vs-total-mesorectal-excision-tme
#5
X Serra-Aracil, C Pericay, T Golda, L Mora, E Targarona, S Delgado, A Reina, F Vallribera, J M Enriquez-Navascues, S Serra-Pla, J C Garcia-Pacheco
PURPOSE: The standard treatment of rectal adenocarcinoma is total mesorectal excision (TME), in many cases requires a temporary or permanent stoma. TME is associated with high morbidity and genitourinary alterations. Transanal endoscopic microsurgery (TEM) allows access to tumors up to 20 cm from the anal verge, achieves minimal postoperative morbidity and mortality rates, and does not require an ostomy. The treatment of T2, N0, and M0 cancers remains controversial. Preoperative chemoradiotherapy (CRT) in association with TEM reduces local recurrence and increases survival...
December 12, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/29234850/normal-magnetic-resonance-appearances-of-the-temporomandibular-joints-in-children-and-young-adults-aged-2-18%C3%A2-years
#6
Oskar W Angenete, Thomas A Augdal, Stig Jellestad, Marite Rygg, Karen Rosendahl
BACKGROUND: Knowledge of normal appearances of the temporomandibular joint (TMJ) is paramount when assessing the joint for disease in juvenile idiopathic arthritis. Reliable features defining normal TMJs in children are limited. OBJECTIVE: To establish reliable normal standards for the TMJ at magnetic resonance imaging (MRI). MATERIALS AND METHODS: We included children and young adults aged 2-18 years undergoing a head MRI for reasons not believed to affect the TMJs...
December 12, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/29234625/insight-into-differentiated-thyroid-cancer-gross-pathological-specimen-shrinkage-and-its-influence-on-tnm-staging
#7
Alexis Lacout, Emmanuel Chamorey, Juliette Thariat, Mostafa El Hajjam, Carole Chevenet, Renaud Schiappa, Pierre Yves Marcy
Introduction: This study aimed at comparing thyroid cancer staging when taking into account the differences between the "T" assessment" using ultrasound (US) and histopathological measurements. Material and Methods: This retrospective study included all consecutive differentiated follicular thyroid cancer (DTC) and medullary thyroid cancer (MTC) patients who underwent postoperative histopathological staging assessment at a single institution. Anaplastic thyroid carcinomas were excluded from the present study...
November 2017: European Thyroid Journal
https://www.readbyqxmd.com/read/29234597/a-supervised-framework-with-intensity-subtraction-and-deformation-field-features-for-the-detection-of-new-t2-w-lesions-in-multiple-sclerosis
#8
Mostafa Salem, Mariano Cabezas, Sergi Valverde, Deborah Pareto, Arnau Oliver, Joaquim Salvi, Àlex Rovira, Xavier Lladó
Introduction: Longitudinal magnetic resonance imaging (MRI) analysis has an important role in multiple sclerosis diagnosis and follow-up. The presence of new T2-w lesions on brain MRI scans is considered a prognostic and predictive biomarker for the disease. In this study, we propose a supervised approach for detecting new T2-w lesions using features from image intensities, subtraction values, and deformation fields (DF). Methods: One year apart multi-channel brain MRI scans were obtained for 60 patients, 36 of them with new T2-w lesions...
2018: NeuroImage: Clinical
https://www.readbyqxmd.com/read/29234253/evaluation-of-sentinel-lymph-node-biopsy-and-axillary-lymph-node-dissection-for-breast-cancer-treatment-concepts-a-retrospective-study-of-1-214-breast-cancer-patients
#9
Roland G Stein, Roland Fricker, Thomas Rink, Hartmut Fitz, Sebastian Blasius, Joachim Diessner, Sebastian F M Häusler, Tanja N Stüber, Victoria Andreas, Achim Wöckel, Thomas Müller
Background: Most breast cancer patients require lumpectomy with axillary sentinel lymph node biopsy (SLNB) or axillary lymph node dissection (ALND). The ACOSOG Z0011-trial failed to detect significant effects of ALND on disease-free and overall survival among patients with limited sentinel lymph node (SLN) metastases. Intense dose-dense chemotherapy and supraclavicular fossa radiation (SFR) are indicated for patients with extensive axillary metastases. In this multicentered study, we investigated the relevance of ALND after positive SLNB to determine adequate adjuvant therapy...
October 2017: Breast Care
https://www.readbyqxmd.com/read/29233600/noise-reduction-in-flair2-images-using-total-generalized-variation-gaussian-and-wiener-filtering
#10
René Schranzer, Alexander Rauscher, Evelin Haimburger, Kristian Bredies, Gernot Reishofer, Günther Grabner
PURPOSE: Multiplication of FLAIR and T2-weighted MRI scans results in images (called FLAIR2) with an improved contrast-to-noise ratio (CNR) for multiple sclerosis (MS) lesions but with a reduced signal-to-noise ratio (SNR). Denoising of these images may therefore further improve FLAIR2 image quality. The purpose of this work is to present a systematic investigation of FLAIR2 image denoising methods using Gaussian, Wiener and Total Generalized Variation (TGV) filtering approaches. MATERIALS AND METHODS: T2-weighted and FLAIR data of four MS patients were used...
December 9, 2017: Zeitschrift Für Medizinische Physik
https://www.readbyqxmd.com/read/29233163/intra-articular-injection-of-expanded-autologous-bone-marrow-mesenchymal-cells-in-moderate-and-severe-knee-osteoarthritis-is-safe-a-phase-i-ii-study
#11
Mahasen Al-Najar, Hiba Khalil, Jihad Al-Ajlouni, Eman Al-Antary, Mohammad Hamdan, Reem Rahmeh, Dana Alhattab, Osama Samara, Mohamad Yasin, Amenah Al Abdullah, Esraa Al-Jabbari, Dima Hmaid, Hanan Jafar, Abdalla Awidi
BACKGROUND: Knee osteoarthritis (KOA) is a major health problem especially in the aging population. There is a need for safe treatment that restores the cartilage and reduces the symptoms. The use of stem cells is emerging as a possible option for the moderate and severe cases. This study aimed at testing the safety of autologous bone marrow mesenchymal stem cells (BM-MSCs) expanded in vitro when given intra-articularly to patients with stage II and III KOA. As a secondary end point, the study tested the ability of these cells to relieve symptoms and restore the knee cartilage in these patients as judged by normalized knee injury and Osteoarthritis Outcome Score (KOOS) and by magnetic resonance imaging (MRI)...
December 12, 2017: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29233106/genetic-diversity-and-distribution-of-mycobacterium-tuberculosis-genotypes-in-limpopo-south-africa
#12
N T C Maguga-Phasha, N S Munyai, F Mashinya, M E Makgatho, E F Mbajiorgu
BACKGROUND: Tuberculosis remains a major health problem and knowledge of the diversity of Mycobacterium tuberculosis strains in specific geographical regions can contribute to the control of the disease. This study describes the genetic profile of M. tuberculosis in five districts of Limpopo Province. METHODS: A total 487 isolates were collected from the National Health Laboratory Services from all regions/districts of Limpopo Province. Only 215 isolates were confirmed to be M...
December 12, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29232960/ocrelizumab-a-new-b-cell-therapy-for-relapsing-remitting-and-primary-progressive-multiple-sclerosis
#13
Amanda M Stahnke, Kathryn M Holt
OBJECTIVE: To review the pharmacology, pharmacokinetics, efficacy, and safety of ocrelizumab, a new B-cell-targeted therapy for multiple sclerosis (MS). DATA SOURCES: A comprehensive search of PubMed and OVID/MEDLINE was conducted using search terms ocrelizumab and multiple sclerosis using the date range of 1946 through October 2017. STUDY SELECTION AND DATA EXTRACTION: All English-language, human-subject articles related to ocrelizumab and MS were evaluated...
December 1, 2017: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/29232482/validation-of-a-contextualized-assessment-of-smoking-behavior-in-students
#14
Helle Larsen, Elske Salemink, Ilva Grond, Reinout W Wiers, Kristen G Anderson
AIMS: The aim of this study was to validate an audio simulation of culture-specific social contexts associated with smoking to provide a medium for researchers to investigate social-contextual influences on tobacco use in the laboratory. METHODS: 81 students (34.6% men; n = 28) listened to five audio simulations of peer social contexts where offers to smoke tobacco were made (S-SIDE). For each social scenario, participants answered questions about their willingness to accept the offer to smoke and completed measures of smoking cognitions and tobacco use...
December 12, 2017: Addiction
https://www.readbyqxmd.com/read/29232407/temporal-changes-in-cardiac-oxidative-stress-inflammation-and-remodeling-induced-by-exercise-in-hypertension-role-for-local-angiotensin-ii-reduction
#15
Sebastião D Silva, Zaira P Jara, Roseli Peres, Larissa S Lima, Cristóforo Scavone, Augusto C Montezano, Rhian M Touyz, Dulce E Casarini, Lisete C Michelini
Exercise training reduces renin-angiotensin system (RAS) activation, decreases plasma and tissue oxidative stress and inflammation in hypertension. However, the temporal nature of these phenomena in response to exercise is unknown. We sought to determine in spontaneously hypertensive rats (SHR) and age-matched WKY controls the weekly effects of training on blood pressure (BP), plasma and left ventricle (LV) Ang II and Ang-(1-7) content (HPLC), LV oxidative stress (DHE staining), gene and protein expression (qPCR and WB) of pro-inflammatory cytokines, antioxidant enzymes and their consequence on hypertension-induced cardiac remodeling...
2017: PloS One
https://www.readbyqxmd.com/read/29232185/18f-fdg-pet-biomarkers-help-detect-early-metabolic-response-to-irreversible-electroporation-and-predict-therapeutic-outcomes-in-a-rat-liver-tumor-model
#16
Xifu Wang, Zhanliang Su, Tianchu Lyu, Matteo Figini, Daniel Procissi, Junjie Shangguan, Chong Sun, Bin Wang, Na Shang, Shanzhi Gu, Quanhong Ma, Andrew C Gordon, Kai Lin, Jian Wang, Robert J Lewandowski, Riad Salem, Vahid Yaghmai, Andrew C Larson, Zhuoli Zhang
Purpose To test the hypothesis that biomarkers of fluorine 18 (18F) fluorodeoxyglucose (FDG) positron emission tomography (PET) can be used for the early detection of therapeutic response to irreversible electroporation (IRE) of liver tumor in a rodent liver tumor model. Materials and Methods The institutional animal care and use committee approved this study. Rats were inoculated with McA-RH7777 liver tumor cells in the left median and left lateral lobes. Tumors were allowed to grow for 7 days to reach a size typically at least 5 mm in longest diameter, as verified with magnetic resonance (MR) imaging...
December 12, 2017: Radiology
https://www.readbyqxmd.com/read/29232171/sentinel-lymph-node-biopsy-and-management-of-regional-lymph-nodes-in-melanoma-american-society-of-clinical-oncology-and-society-of-surgical-oncology-clinical-practice-guideline-update
#17
Sandra L Wong, Mark B Faries, Erin B Kennedy, Sanjiv S Agarwala, Timothy J Akhurst, Charlotte Ariyan, Charles M Balch, Barry S Berman, Alistair Cochran, Keith A Delman, Mark Gorman, John M Kirkwood, Marc D Moncrieff, Jonathan S Zager, Gary H Lyman
Purpose To update the American Society of Clinical Oncology (ASCO)-Society of Surgical Oncology (SSO) guideline for sentinel lymph node (SLN) biopsy in melanoma. Methods An ASCO-SSO panel was formed, and a systematic review of the literature was conducted regarding SLN biopsy and completion lymph node dissection (CLND) after a positive sentinel node in patients with melanoma. Results Nine new observational studies, two systematic reviews, and an updated randomized controlled trial of SLN biopsy, as well as two randomized controlled trials of CLND after positive SLN biopsy, were included...
December 12, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/29232030/reproducibility-of-relaxometry-of-human-lumbar-vertebrae-at-3-tesla-using-1-h-mr-spectroscopy
#18
Bernhard Neumayer, Thomas Widek, Rudolf Stollberger, Eva Scheurer
BACKGROUND: MR spectroscopy is widely used for fat fraction quantification of human lumbar vertebrae. However, the measurements need to be corrected for relaxation effects. PURPOSE: The aim of this study was to determine the reproducibility of relaxometry in human lumbar vertebrae required for the correction of fat fraction measurements using magnetic resonance spectroscopy at 3 Tesla. Such information provides error estimates and guidance regarding reliability for future studies...
December 12, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29232021/investigation-of-diffusion-kurtosis-imaging-for-discriminating-tumors-from-inflammatory-lesions-after-treatment-for-bladder-cancer
#19
Fang Wang, Di Jin, Xiao-Lan Hua, Zi-Zhou Zhao, Lian-Ming Wu, Wei-Bo Chen, Guang-Yu Wu, Xiao-Xi Chen, Hai-Ge Chen
BACKGROUND: The bladder wall may thicken resulting from chronic inflammation after initial treatment (transurethral resection [TUR] or neoadjuvant chemotherapy), which may mimic the feature of recurrent or residual bladder tumors (RBT). Therefore, it is critical to discriminate RBT from benign lesions after initial treatment. PURPOSE: To investigate whether diffusion kurtosis imaging (DKI) could discriminate RBT from post-therapy bladder inflammatory lesions. STUDY TYPE: Retrospective...
December 12, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29231968/value-of-magnetic-resonance-imaging-for-evaluating-muscle-inflammation-insights-from-a-new-mouse-model-of-myositis
#20
Gwladys Bourdenet, Benjamin Dubourg, Lionel Nicol, Paul Mulder, Jérémie Martinet, Yves Allenbach, Christian Boitard, Olivier Boyer
Inflammatory myopathies or myositides represent a group of severe skeletal muscle diseases characterized by muscle weakness, elevation of serum creatine kinase levels and muscle inflammatory cell infiltrates. Despite the contribution of a growing number of myositis-specific autoantibodies and the existence of characteristic dermatological features in dermatomyositis, the definitive diagnosis of myositis requires pathological examination of a muscle biopsy [1, 2]. To limit false negatives, this biopsy should be performed in an area of active disease [2]...
December 12, 2017: Neuropathology and Applied Neurobiology
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