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https://www.readbyqxmd.com/read/28543885/dce-mri-prediction-of-survival-time-for-patients-with-glioblastoma-multiforme-using-an-adaptive-neuro-fuzzy-based-model-and-nested-model-selection-technique
#1
Azimeh N V Dehkordi, Alireza Kamali-Asl, Ning Wen, Tom Mikkelsen, Indrin J Chetty, Hassan Bagher-Ebadian
This pilot study investigates the construction of an Adaptive Neuro-Fuzzy Inference System (ANFIS) for the prediction of the survival time of patients with glioblastoma multiforme (GBM). ANFIS is trained by the pharmacokinetic (PK) parameters estimated by the model selection (MS) technique in dynamic contrast enhanced-magnetic resonance imaging (DCE-MRI) data analysis, and patient age. DCE-MRI investigations of 33 treatment-naïve patients with GBM were studied. Using the modified Tofts model and MS technique, the following physiologically nested models were constructed: Model 1, no vascular leakage (normal tissue); Model 2, leakage without efflux; Model 3, leakage with bidirectional exchange (influx and efflux)...
May 25, 2017: NMR in Biomedicine
https://www.readbyqxmd.com/read/28538603/a-systematic-review-of-the-exercise-effect-on-bone-health-the-importance-of-assessing-mechanical-loading-in-perimenopausal-and-postmenopausal-women
#2
Borja Sañudo, Moisés de Hoyo, Jesús Del Pozo-Cruz, Luis Carrasco, Borja Del Pozo-Cruz, Sergio Tejero, Elwyn Firth
OBJECTIVE: The aims of this systematic review were to determine the general effects of exercise on areal bone mineral density (BMD) in perimenopausal and postmenopausal women, and to provide information on the most suitable bone-loading exercise regimens that may improve bone health in this population group. METHODS: A computerized, systematic literature search was performed in the electronic databases PubMed, Web of Science, CINAHL, SPORTDiscus, and The Cochrane Library, from January 2005 to November 2015, to identify all randomized controlled trials related to exercise in perimenopausal and postmenopausal women...
May 22, 2017: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/28534164/an-evaluation-of-patient-experience-during-percutaneous-breast-biopsy
#3
Jean M Seely, Fraser Hill, Susan Peddle, Jackie Lau
OBJECTIVE: Percutaneous breast biopsy in a tertiary referral high volume breast centre: can we improve the patient experience? PURPOSE: The study was performed to evaluate patient experience during ultrasound-guided (UGB) and vacuum-assisted stereotactic breast biopsy (SBB) and determine what factors could improve the patient experience. METHODS: Consecutive patients who underwent image guided breast biopsy from 01- 05/30, 2015 were approached in a structured telephone interview to evaluate pain and bruising from the procedure...
May 22, 2017: European Radiology
https://www.readbyqxmd.com/read/28530451/effect-of-high-volume-injection-platelet-rich-plasma-and-sham-treatment-in-chronic-midportion-achilles-tendinopathy-a-randomized-double-blinded-prospective-study
#4
Anders Ploug Boesen, Rudi Hansen, Morten Ilum Boesen, Peter Malliaras, Henning Langberg
BACKGROUND: Injection therapies are often considered alongside exercise for chronic midportion Achilles tendinopathy (AT), although evidence of their efficacy is sparse. PURPOSE: To determine whether eccentric training in combination with high-volume injection (HVI) or platelet-rich plasma (PRP) injections improves outcomes in AT. STUDY DESIGN: Randomized controlled trial; Level of evidence, 1. METHODS: A total of 60 men (age, 18-59 years) with chronic (>3 months) AT were included and followed for 6 months (n = 57)...
May 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28518003/caffeine-consumption-among-naval-aviation-candidates
#5
Thomas E Sather, Ronald D Williams, Donald R Delorey, Conrad L Woolsey
INTRODUCTION: Education frequently dictates students need to study for prolonged periods of time to adequately prepare for examinations. This is especially true with aviation preflight indoctrination (API) candidates who have to assimilate large volumes of information in a limited amount of time during API training. The purpose of this study was to assess caffeine consumption patterns (frequency, type, and volume) among naval aviation candidates attending API to determine the most frequently consumed caffeinated beverage and to examine if the consumption of a nonenergy drink caffeinated beverage was related to energy drink consumption...
April 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/28516482/multiple-boli-arterial-spin-labeling-for-high-signal-to-noise-rodent-brain-perfusion-imaging
#6
Antoine Vallatos, Lesley Gilmour, Anthony J Chalmers, William M Holmes
PURPOSE: A systematic method is proposed for optimizing a promising preclinical arterial spin labeling (ASL) sequence based on the use of a train of adiabatic radiofrequency pulses labeling successive boli of blood water. METHODS: The sequence optimization is performed and evaluated using brain imaging experiments in mice and in rats. It involves the investigation of several parameters, ranging from the number of adiabatic pulses and labeling duration to the properties of the adiabatic hyperbolic secant pulses (ie, amplitude and frequency modulation)...
May 17, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28514940/the-effect-of-initial-teaching-on-evaluation-of-left-ventricular-volumes-by-cardiovascular-magnetic-resonance-imaging-comparison-between-complete-and-intermediate-beginners-and-experienced-observers
#7
Erik Hedström, Masaki Ishida, Alvaro Sepúlveda-Martínez, Daniel Salehi, Johannes Sperling, Henrik Engblom, Eike Nagel
BACKGROUND: High reproducibility and low intra- and interobserver variability are important strengths of cardiac magnetic resonance (CMR). In clinical practice a significant learning curve may however be observed. Basic CMR courses offer an average of 1.4 h dedicated to lecturing and demonstrating left ventricular (LV) function analysis. The purpose of this study was to evaluate the effect of initial teaching on complete and intermediate beginners' quantitative measurements of LV volumes and function by CMR...
May 17, 2017: BMC Medical Imaging
https://www.readbyqxmd.com/read/28514233/energy-balance-over-one-athletic-season
#8
Analiza M Silva, Catarina N Matias, Diana A Santos, Diana Thomas, Anja Bosy-Westphal, Manfred J Müller, Steven B Heymsfield, Luís B Sardinha
INTRODUCTION: Magnitude and variation in energy balance (EB) components over an athletic season are largely unknown. PURPOSE: We investigated the longitudinal changes in EB over one season and explored the association between EB variation and the change in the main fat-free mass (FFM) components in highly trained athletes. METHODS: Eighty athletes (54 males; handball, volleyball, basketball, triathlete, and swimming) were evaluated from the beginning of the season to the main competition stage...
March 22, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28511894/incorporating-simulation-into-gynecologic-surgical-training
#9
REVIEW
Kyle Wohlrab, J Eric Jelovsek, Deborah Myers
Today's educational environment has made it more difficult to rely on the Halstedian model of 'see one, do one, teach one' in gynecologic surgical training. There is decreased surgical volume, but an increased number of surgical modalities. Fortunately, surgical simulation has evolved to fill the educational void. Whether it is through skill generalization or skill transfer, surgical simulation has shifted the learning curve from the operating room back to the classroom. This article explores the principles of surgical education and ways to introduce simulation as an adjunct to residency training...
May 13, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28503530/caffeine-supplementation-affects-the-immunometabolic-response-to-concurrent-training
#10
Fabrício Eduardo Rossi, Valéria Leme Gonçalves Panissa, Paula Aulves Monteiro, José Gerosa-Neto, Érico Chagas Caperuto, Jason Michael Cholewa, Alessandro Moura Zagatto, Fábio Santos Lira
The aim of the present study was to investigate the effects of caffeine (CAF) and carbohydrate (CHO) intake on strength performance and its metabolic and inflammatory responses during concurrent training. Seven active males ingested a double-placebo (P), CAF (capsule 5 mg/kg) or CHO (20% maltodextrin solution) supplementation before strength exercise. Participants performed three randomized sessions of 5,000-m high-intensity intermittent aerobic exercise at maximal intensity followed by strength exercise, performing after the P, CHO, and CAF intake...
April 2017: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/28502359/pearls-and-pitfalls-for-a-surgeon-new-to-ankle-replacements
#11
REVIEW
Federico Giuseppe Usuelli, Camilla Maccario
The role of the surgeon learning curve in total ankle replacement (TAR) has produced contradictory results. It is important for a new surgeon to know what clinical and radiological parameters are considered reliable and ideal. It is clear that exposure to a high-volume center will increase the reliability of a new surgeon approaching TAR. Implant choice may be influenced by surgeon training, and the debate of mobile versus fix-bearing prosthesis is still open. Anterior versus lateral approach is still an open debate, with any hypothetical advantages given by the direct vision on the center of rotation to be proven...
June 2017: Foot and Ankle Clinics
https://www.readbyqxmd.com/read/28502200/foetal-premature-atrial-contractions-during-the-second-and-third-trimester-are-not-associated-with-foetal-breathing
#12
Geoffrey H Gordon, Joelle Thomas, Barbara Trampe, J I Iruretagoyena
Foetal premature atrial contractions (PACs) are the most commonly encountered and also the most benign foetal arrhythmia. A retrospective cohort study was conducted with the objective to assess whether the presence of foetal breathing was associated with the presence of foetal PACs. A further objective was to evaluate whether this association would affect neonatal outcomes at a high volume referral centre. The diagnosis of PACs was based on the observation of a premature atrial contraction followed by a ventricular contraction on ultrasound myocardial M-mode...
May 14, 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28502029/a-longitudinal-analysis-of-short-term-costs-and-outcomes-in-a-regionalized-center-of-excellence-bariatric-care-system
#13
Aristithes G Doumouras, Fady Saleh, Sama Anvari, Scott Gmora, Mehran Anvari, Dennis Hong
BACKGROUND: Evaluating how morbidity and costs evolve for new bariatric centers is vital to understanding the expected length of time required to reach optimal outcomes and cost efficiencies. Accordingly, the objective of this study was to evaluate how morbidity and costs changed longitudinally during the first 5 years of a regionalized center of excellence system. METHODS: This was a longitudinal analysis of the first 5 years of a bariatric center of excellence system...
May 13, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28501246/advances-in-laparoscopic-colorectal-surgery
#14
REVIEW
James Michael Parker, Timothy F Feldmann, Kyle G Cologne
Laparoscopic colorectal surgery has now become widely adopted for the treatment of colorectal neoplasia, with steady increases in utilization over the past 15 years. Common minimally invasive techniques include multiport laparoscopy, single-incision laparoscopy, and hand-assisted laparoscopy, with the choice of technique depending on several patient and surgeon factors. Laparoscopic colorectal surgery involves a robust learning curve, and fellowship training often lays the foundation for a high-volume laparoscopic practice...
June 2017: Surgical Clinics of North America
https://www.readbyqxmd.com/read/28499488/in%C3%A2-vivo-dosimetry-with-alanine-electron-spin-resonance-dosimetry-to-evaluate-the-urethra-dose-during-high-dose-rate-brachytherapy
#15
Daniela Wagner, Markus Hermann, Andrea Hille
PURPOSE: To determine the dose of the urethra during Ir-192 high-dose-rate brachytherapy in 15 patients, a new detector form developed for in vivo measurements was used as described by Anton et al. 2009. METHODS AND MATERIALS: The detector consists of alanine powder with paraffin as binder which was filled in a shrinkable tube for measurements. The alanine strand so produced was inserted in the foley catheter during high-dose-rate brachytherapy of the prostate...
May 9, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28497283/the-impact-of-resistance-training-on-swimming-performance-a-systematic-review
#16
REVIEW
Emmet Crowley, Andrew J Harrison, Mark Lyons
BACKGROUND: The majority of propulsive forces in swimming are produced from the upper body, with strong correlations between upper body strength and sprint performance. There are significant gaps in the literature relating to the impact of resistance training on swimming performance, specifically the transfer to swimming performance. OBJECTIVE: The aims of this systematic literature review are to (1) explore the transfer of resistance-training modalities to swimming performance, and (2) examine the effects of resistance training on technical aspects of swimming...
May 12, 2017: Sports Medicine
https://www.readbyqxmd.com/read/28495009/a-two-step-convolutional-neural-network-based-computer-aided-detection-scheme-for-automatically-segmenting-adipose-tissue-volume-depicting-on-ct-images
#17
Yunzhi Wang, Yuchen Qiu, Theresa Thai, Kathleen Moore, Hong Liu, Bin Zheng
Accurately assessment of adipose tissue volume inside a human body plays an important role in predicting disease or cancer risk, diagnosis and prognosis. In order to overcome limitation of using only one subjectively selected CT image slice to estimate size of fat areas, this study aims to develop and test a computer-aided detection (CAD) scheme based on deep learning technique to automatically segment subcutaneous fat areas (SFA) and visceral fat areas (VFA) depicting on volumetric CT images. A retrospectively collected CT image dataset was divided into two independent training and testing groups...
June 2017: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/28492914/antibiotic-prescribing-for-nonbacterial-acute-upper-respiratory-infections-in-elderly-persons
#18
Michael Silverman, Marcus Povitz, Jessica M Sontrop, Lihua Li, Lucie Richard, Sonny Cejic, Salimah Z Shariff
Background: Reducing inappropriate antibiotic prescribing for acute upper respiratory tract infections (AURIs) requires a better understanding of the factors associated with this practice. Objective: To determine the prevalence of antibiotic prescribing for nonbacterial AURIs and whether prescribing rates varied by physician characteristics. Design: Retrospective analysis of linked administrative health care data. Setting: Primary care physician practices in Ontario, Canada (January-December 2012)...
May 9, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/28492149/the-histopathological-parameters-affecting-biochemical-recurrence-in-radical-prostatectomies
#19
Yelda Dere, Aysegu Aksoy Altinboga, Kaan Bal, Aylin Calli, Murat Ermete, Aysegul Akder Sari
OBJECTIVE: To determine the relationship between biochemical recurrence and other histopathological factors in prostate cancer. STUDY DESIGN: Analytical study. PLACE AND DURATION OF STUDY: Pathology and Urology Departments, Izmir Ataturk Training and Research Hospital, between 2001 - 2013. METHODOLOGY: 117 cases diagnosed with prostatic adenocarcinoma and treated by radical prostatectomy were reviewed retrospectively for histopathological features; whereas, other prognostic findings were noted...
April 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/28489638/current-status-of-cardiovascular-anesthesia-in-china
#20
Jiakai Lu, Weipeng Wang, Weiping Cheng, Lei Chen, Jeffrey Huang, Chris A Ethridge, Jiapeng Huang
High quality and safe cardiac anesthesia is a prerequisite for success in cardiac care. Cardiac surgery has developed rapidly over recent years in China. Because of language barriers, the current status of cardiac anesthesia in China is not well known to Western countries. To assess practice patterns, volume, workforce, and training requirements of Chinese cardiovascular anesthesiologists, we surveyed 92 major cardiovascular centers in China regarding their anesthesia practice, monitoring techniques, resources, staffing, and work hours...
May 4, 2017: Anesthesia and Analgesia
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