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https://www.readbyqxmd.com/read/29157444/a-tool-to-visualize-and-analyze-perfusion-data-development-and-application-of-the-r-package-ctp
#1
Seth T Lirette, Andrew D Smith, Inmaculada B Aban
BACKGROUND AND OBJECTIVE: Computed tomography perfusion (CTP) is a widely used imaging modality especially in neuroimaging. Despite this, CTP is often prohibitive due to the dearth of free/open-source software. This could have wide-ranging implications for instruction and research. We have implemented an online-available CTP tool built and run completely within the R computing environment. METHODS: Called from within R, the user can select one of four different methods to construct a cerebral blood flow (CBF) map: (1) max-slope (2) singular value decomposition (3) block circulant singular value decomposition or (4) oscillation minimization singular value decomposition...
January 2018: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/29155719/exploring-deep-space-uncovering-the-anatomy-of-periventricular-structures-to-reveal-the-lateral-ventricles-of-the-human-brain
#2
Alexandru S Colibaba, Aicee Dawn B Calma, Alexandra L Webb, Krisztina Valter
Anatomy students are typically provided with two-dimensional (2D) sections and images when studying cerebral ventricular anatomy and students find this challenging. Because the ventricles are negative spaces located deep within the brain, the only way to understand their anatomy is by appreciating their boundaries formed by related structures. Looking at a 2D representation of these spaces, in any of the cardinal planes, will not enable visualisation of all of the structures that form the boundaries of the ventricles...
October 22, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29151384/endoscopic-ear-surgery-in-the-ear-camp-setting-forward-thinking-or-folly
#3
M P A Clark
BACKGROUND: Endoscopic ear surgery is becoming an accepted technique in otological surgery, in the management of chronic otitis media. METHODS: The technique was introduced to the humanitarian care setting of an ear camp in Nepal to consider the appropriateness of the technique in this type of clinical setting. RESULTS: Fifteen cases of myringoplasty were successfully completed. CONCLUSION: The apparent advantages of the endoscopic approach over the traditional microscopic one were the ease of transporting the equipment and the optimal view obtained of the tympanic membrane...
November 20, 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/29150999/focus-on-focus-lack-of-coherence-between-systemic-and-microvascular-indices-of-edema-formation
#4
Birkitt Ten Tusscher, Corien Gudden, Suus van Vliet, Bob Smit, Can Ince, E Christiaan Boerma, Harm-Jan S de Grooth, Paul W G Elbers
BACKGROUND: Fluid therapy remains a cornerstone of therapy in shock states. However, fluid overloading ultimately results in edema formation which is related to excess morbidity and mortality. Handheld microscopes are now frequently used to study the sublingual microcirculation. As a corollary, these devices measure focal distance, or surface to capillary distance. Physiologically, this could represent a microvascular index of edema formation and could have the potential to guide fluid therapy...
November 18, 2017: Anaesthesiology Intensive Therapy
https://www.readbyqxmd.com/read/29150477/risk-factors-for-recurrent-intussusception-in-children-a-retrospective-cohort-study
#5
Wan-Liang Guo, Zhang-Chun Hu, Ya-Lan Tan, Mao Sheng, Jian Wang
OBJECTIVE: The aim of this study was to assess the frequency of clinical features and pathological lead points in recurrent intussusception, with a special focus on the risk factors that lead to recurrent intussusception. DESIGN: This is a retrospective cohort study. A 5-year retrospective study was performed between January 2012 and July 2016 in the Children's Hospital of Soochow University, Suzhou, China, to determine the clinical features and pathological lead points of recurrent intussusception...
November 16, 2017: BMJ Open
https://www.readbyqxmd.com/read/29143096/-neurofeedback-for-the-treatment-of-chronic-tinnitus-review-and-future-perspectives
#6
REVIEW
T Kleinjung, C Thüring, D Güntensperger, P Neff, M Meyer
Neurofeedback is a noninvasive neuromodulation technique employing real-time display of brain activity in terms of electroencephalography (EEG) signals to teach self-regulation of distinct patterns of brain activity or influence brain activity in a targeted manner. The benefit of this approach for control of symptoms in attention deficit disorders, hyperactivity, depression, and migraine has been proven. Studies in recent years have also repeatedly shown this treatment to improve tinnitus symptoms, although it has not become established as routine therapy...
November 15, 2017: HNO
https://www.readbyqxmd.com/read/29140977/low-cost-and-open-source-multi-fluorescence-imaging-system-for-teaching-and-research-in-biology-and-bioengineering
#7
Isaac Nuñez, Tamara Matute, Roberto Herrera, Juan Keymer, Timothy Marzullo, Timothy Rudge, Fernán Federici
The advent of easy-to-use open source microcontrollers, off-the-shelf electronics and customizable manufacturing technologies has facilitated the development of inexpensive scientific devices and laboratory equipment. In this study, we describe an imaging system that integrates low-cost and open-source hardware, software and genetic resources. The multi-fluorescence imaging system consists of readily available 470 nm LEDs, a Raspberry Pi camera and a set of filters made with low cost acrylics. This device allows imaging in scales ranging from single colonies to entire plates...
2017: PloS One
https://www.readbyqxmd.com/read/29130520/narrated-video-demonstrating-the-procedure-of-videourodynamics
#8
Linda Cardozo, Fevzi Shakir, George Araklitis, Angie Rantell, Dudley Robinson
AIMS: To present a narrated video designed to demonstrate the steps involved in the procedure of videourodynamics. METHODS: The technique shown and described in this teaching video is that performed in the urogynaecology Department at King's College Hospital, London. The equipment utilizes fluid filled lines and external pressure transducers which provide accurate and consistent results. RESULTS: The advantage of videocystourolodraphy is that as well as incorporating screening fluoroscopy with a cystometric trace, simultaneous assessment of lower urinary tract anatomy and morphology and function is possible...
November 11, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/29130022/evaluation-of-postgraduates-following-implementation-of-a-focus-assessed-transthoracic-echocardiography-fate-training-course-a-pilot-study
#9
Stephen C Haskins, Jinhui Zhao, Jemiel A Nejim, Kara Fields, Sean Garvin, Sumudu Dehipawala, James D Beckman, Angie Zhang, James A Osorio, Christopher Tanaka
At our institution, implementation of a formal training course in Basic Focus Assessed Transthoracic Echocardiography (FATE) was associated with an improvement in anesthesia trainees' ability to obtain transthoracic echocardiography (TTE) images. Total image acquisition scores improved by a median (Q1, Q3) 9.1 (2.9,14.7) percentage points from pre-to post-hands-on FATE course (n=20; p=0.001). Participants who returned for a subsequent assessment 5 months following the course demonstrated a median (Q1, Q3) 18...
September 2017: Journal of Anesthesia & Clinical Research
https://www.readbyqxmd.com/read/29122394/scientific-notebook-software-applications-for-academic-radiology
#10
Michael L Richardson, Behrang Amini
OBJECTIVES: The goal of this article is to introduce the concept of scientific notebook software, and to illustrate how it can be used to document a research project, to perform image analysis and to create interactive teaching tools. METHODS: We describe the installation of scientific notebook software known as Project Jupyter, which is free, open-source and available for the Macintosh, Windows and Linux operating systems. RESULTS: We have created 2 scientific notebooks that demonstrate applications germane to radiologists, particularly those in academic radiology...
September 18, 2017: Current Problems in Diagnostic Radiology
https://www.readbyqxmd.com/read/29119039/osirix-software-as-a-preoperative-planning-tool-in-cranial-neurosurgery-a-step-by-step-guide-for-neurosurgical-residents
#11
REVIEW
Toma Spiriev, Vladimir Nakov, Lili Laleva, Christo Tzekov
Background: OsiriX (Pixmeo, Switzerland) is an open-source Digital Imaging and Communications in Medicine (DICOM) viewer that is gaining more and more attention in the neurosurgical community because of its user-friendly interface, powerful three-dimensional (3D) volumetric rendering capabilities, and various options for data integration. This paper presents in detail the use of OsiriX software as a preoperative planning tool in cranial neurosurgery. Methods: In January 2013, OsiriX software was introduced into our clinical practice as a preoperative planning tool...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/29118844/ultrasound-probe-grip-the-afternoon-tea-technique
#12
Luke McMenamin, Stephen Wolstenhulme, Max Hunt, Stuart Nuttall, Asoka Weerasinghe
Background: Globally, ultrasound is being used to assist in central venous and difficult peripheral intravenous access in a variety of emergency and non-emergency clinical settings. Context: After reading Flood's paper on safe central venous access and noting the difficulties clinicians find in probe stabilisation whilst performing dynamic intravenous access, we decided to share our teaching technique. Innovation: The purpose of this correspondence is to highlight the 'afternoon tea technique' as a potential teaching method for probe stabilisation...
August 2017: J Intensive Care Soc
https://www.readbyqxmd.com/read/29113527/the-relationship-between-spatial-ability-cerebral-blood-flow-and-learning-with-dynamic-images-a-transcranial-doppler-ultrasonography-study
#13
Jay J Loftus, Michele Jacobsen, Timothy D Wilson
Determining the effect of dynamic images on learning is often limited to performance measures. This study explores the impact from the perspective of cerebral blood flow in the brain during learning. Performance and neurophysiological response in high and low spatial ability were compared during learning with dynamic images. Individuals with high spatial ability appear to be better suited to learn with complex images such as dynamic images that move in time and space. The results presented here suggest that spatial ability can help to determine the effectiveness of the media we use for teaching...
November 7, 2017: Medical Teacher
https://www.readbyqxmd.com/read/29111239/ctpa-protocol-optimisation-audit-challenges-of-dose-reduction-with-maintained-image-quality
#14
A Nania, A Weir, N Weir, G Ritchie, C Rofe, E Van Beek
AIM: To assess computed tomography (CT) pulmonary angiography (CTPA) dose and image quality in a large teaching hospital, and subsequently, to optimise the protocol in order to reduce the dose without affecting image quality. MATERIALS AND METHODS: Dose-length product (DLP), patient size, and objective quality parameters (contrast-to-noise ratio and signal-to-noise ratio on standardised levels) were recorded from 31 patients undergoing CTPA, where also a subjective image quality evaluation was carried out independently by three specialist cardiothoracic consultant radiologists...
October 27, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/29107458/imaging-facilities-adherence-to-pi-rads-v2-minimum-technical-standards-for-the-performance-of-prostate-mri
#15
Steven J Esses, Samir S Taneja, Andrew B Rosenkrantz
PURPOSE: This study aimed to assess variability in imaging facilities' adherence to the minimum technical standards for prostate magnetic resonance imaging acquisition established by Prostate Imaging-Reporting and Data System (PI-RADS) version 2 (v2). METHODS: A total of 107 prostate magnetic resonance imaging examinations performed at 107 unique imaging facilities after the release of PI-RADS v2 and that were referred to a tertiary care center for secondary interpretation were included...
October 26, 2017: Academic Radiology
https://www.readbyqxmd.com/read/29106668/usim-a-new-device-and-app-for-case-specific-intraoperative-ultrasound-simulation-and-rehearsal-in-neurosurgery-a-preliminary-study
#16
Alessandro Perin, Francesco Ugo Prada, Michela Moraldo, Andrea Schiappacasse, Tommaso Francesco Galbiati, Enrico Gambatesa, Piergiorgio d'Orio, Nicole Irene Riker, Curzio Basso, Matteo Santoro, Torstein Ragnar Meling, Karl Schaller, Francesco DiMeco
BACKGROUND: Intraoperative ultrasound (iUS) is an excellent aid for neurosurgeons to perform better and safer operations thanks to real time, continuous, and high-quality intraoperative visualization. OBJECTIVE: To develop an innovative training method to teach how to perform iUS in neurosurgery. METHODS: Patients undergoing surgery for different brain or spine lesions were iUS scanned (before opening the dura) in order to arrange a collection of 3-dimensional, US images; this set of data was matched and paired to preoperatively acquired magnetic resonance images in order to create a library of neurosurgical cases to be studied offline for training and rehearsal purposes...
June 29, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29103917/physician-specialty-and-radiologist-characteristics-associated-with-higher-medicare-patient-complexity
#17
Andrew B Rosenkrantz, Wenyi Wang, Arvind Vijayasarathi, Richard Duszak
RATIONALE AND OBJECTIVES: Meaningfully measuring physician outcomes and resource utilization requires appropriate patient risk adjustment. We aimed to assess Medicare patient complexity by physician specialty and to further identify radiologist characteristics associated with higher patient complexity. MATERIALS AND METHODS: The average beneficiary Hierarchical Condition Category (HCC) risk scores (Medicare's preferred measure of clinical complexity) were identified for all physicians using 2014 Medicare claims data...
November 3, 2017: Academic Radiology
https://www.readbyqxmd.com/read/29096042/what-type-of-learner-are-your-students-preferred-learning-styles-of-undergraduate-gross-anatomy-students-according-to-the-index-of-learning-styles-questionnaire
#18
Melissa M Quinn, Theodore Smith, Eileen L Kalmar, Jennifer M Burgoon
Students learn and process information in many different ways. Learning styles are useful as they allow instructors to learn more about students, as well as aid in the development and application of useful teaching approaches and techniques. At the undergraduate level there is a noticeable lack of research on learning style preferences of students enrolled in gross anatomy courses. The Index of Learning Styles (ILS) questionnaire was administered to students enrolled in a large enrollment undergraduate gross anatomy course with laboratory to determine their preferred learning styles...
November 2, 2017: Anatomical Sciences Education
https://www.readbyqxmd.com/read/29093769/hand-held-ultrasound-scanners-in-medical-education-a-systematic-review
#19
REVIEW
Victor Galusko, Mohammed Yunus Khanji, Owen Bodger, Clive Weston, John Chambers, Adrian Ionescu
Background: Ultrasound imaging devices are becoming popular in clinical and teaching settings, but there is no systematic information on their use in medical education. We conducted a systematic review of hand-held ultrasound (HHU) devices in undergraduate medical education to delineate their role, significance, and limitations. Methods: We searched Cochrane, PubMed, Embase, and Medline using the strategy: [(Hand-held OR Portable OR Pocket OR "Point of Care Systems") AND Ultrasound] AND (Education OR Training OR Undergraduate OR "Medical Students" OR "Medical School")...
September 2017: Journal of Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/29079462/magnetic-resonance-imaging-grading-system-for-preoperative-diagnosis-of-leiomyomas-and-uterine-smooth-muscle-tumors
#20
Yukio Suzuki, Shinichiro Wada, Ayako Nakajima, Yoshiyuki Fukushi, Masaru Hayashi, Takuma Matsuda, Ryoko Asano, Yasuo Sakurai, Hiroko Noguchi, Toshiya Shinohara, Chikara Sato, Takafumi Fujino
STUDY OBJECTIVE: To evaluate a new magnetic resonance imaging (MRI) grading system for preoperative differentiation between benign and variant-type uterine leiomyomas including smooth muscle tumors of uncertain malignant potential (STUMPs). DESIGN: Retrospective analysis (Canadian Task Force classification III). SETTING: Teaching hospital (Teine Keijinkai Hospital). PATIENTS: Three-hundred and thirteen patient medical records were retrospectively reviewed if treated for uterine fibroids and diagnosed with variant type leiomyomas or STUMPs (n = 27) or benign, typical leiomyomas (n = 286) and treated between January 2012 and December 2014...
October 24, 2017: Journal of Minimally Invasive Gynecology
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