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https://read.qxmd.com/read/30776670/quantifying-lung-ultrasound-comets-with-a-convolutional-neural-network-initial-clinical-results
#1
Xianglong Wang, Joseph S Burzynski, James Hamilton, Panduranga S Rao, William F Weitzel, Joseph L Bull
Lung ultrasound comets are "comet-tail" artifacts appearing in lung ultrasound images. They are particularly useful in detecting several lung pathologies and may indicate the amount of extravascular lung water. However, the comets are not always well defined and large variations in the counting results exist between observers. This study uses a convolutional neural network to quantify these lung ultrasound comets on a 4864-image clinical lung ultrasound dataset labeled by the authors. The neural network counted the number of comets correctly on 43...
February 7, 2019: Computers in Biology and Medicine
https://read.qxmd.com/read/30776530/reliability-of-supraspinal-correlates-to-lower-urinary-tract-stimulation-in-healthy-participants-a-fmri-study
#2
Matthias Walter, Lorenz Leitner, Lars Michels, Martina D Liechti, Patrick Freund, Thomas M Kessler, Spyros Kollias, Ulrich Mehnert
Previous functional neuroimaging studies provided evidence for a specific supraspinal network involved in lower urinary tract (LUT) control. However, data on the reliability of blood oxygenation level-dependent (BOLD) signal changes during LUT task-related functional magnetic resonance imaging (fMRI) across separate measurements are lacking. Proof of the latter is crucial to evaluate whether fMRI can be used to assess supraspinal responses to LUT treatments. Therefore, we prospectively assessed task-specific supraspinal responses from 20 healthy participants undergoing two fMRI measurements (test-retest) within 5-8 weeks...
February 15, 2019: NeuroImage
https://read.qxmd.com/read/30774602/validity-and-reliability-of-a-novel-integrative-motor-performance-testing-course-for-seniors-the-agility-challenge-for-the-elderly-ace
#3
Eric Lichtenstein, Oliver Faude, Aline Zubler, Ralf Roth, Lukas Zahner, Roland Rössler, Timo Hinrichs, Jaap H van Dieën, Lars Donath
Background: Assessing traditional neuromuscular fall risk factors (i.e., balance, gait, strength) in the elderly has so far mainly been done independently. Functional and integrative testing approaches are scarce. The present study proposes an agility course for an integrative assessment of neuromuscular and also cardiocirculatory capacity in seniors - and tests its criterion validity and reliability. Methods: Thirty-six seniors (age: 69.0 ± 2.8 years; BMI: 25.4 ± 3.5 kg/m2 ; sex: 19 males/17 females; weekly physical activity: 9...
2019: Frontiers in Physiology
https://read.qxmd.com/read/30774218/measurement-of-anterior-translation-of-the-mandibular-condyle-using-sonography
#4
Kai-Yu Ho, Brooke Laskowski, Danielle Garcia, Christensen J Hardy, Emilio Puentedura
[Purpose] To establish a standardized sonographic approach to quantify anterior translation of the mandibular condyle during mouth opening by examining the reliability of image acquisition and processing, and to understand how anterior condylar translation contributes to mouth opening. [Participants and Methods] Twenty-eight participants without temporomandibular disorder (TMD) participated. During day 1 of data collection, all participants performed maximal mouth opening while an examiner recorded anterior condylar translation using sonography...
January 2019: Journal of Physical Therapy Science
https://read.qxmd.com/read/30774001/the-validity-and-reliability-of-the-basketball-jump-shooting-accuracy-test
#5
Brenton J Boddington, Ashley J Cripps, Aaron T Scanlan, Tania Spiteri
The aim of this study was to examine the content validity, construct validity and reliability of the newly developed Basketball Jump Shooting Accuracy Test (BJSAT). Basketball athletes from different playing levels (State Basketball League [SBL], n = 30, age: 22.7 ± 6.1 yr; SBL Division I, n = 11, age: 20.6 ± 2.1 yr) completed four separate trials of the BJSAT with each trial consisting of shot attempts from two- and three-point distances at pre-determined court locations. Each shot attempt was scored utilising a criteria where higher scores were given when greater accuracy was exhibited...
February 16, 2019: Journal of Sports Sciences
https://read.qxmd.com/read/30773251/digital-measurements-with-hallux-valgus-before-and-after-modified-long-oblique-osteotomy
#6
Il-Hoon Sung, Ki Chun Kim, Sung-Jae Kim, Chang Ho Sung, Jung-Hwan Lee, Yountaek Choi
Radiographic measurements of the hallux valgus (HV) angle (HVA) and the first intermetatarsal angle (IMA1-2 ) are important for assessing the severity of HV. The purpose of the present study was to digitally investigate the intraobserver and interobserver reliability of various methods for measuring HVA and IMA1-2 , as well as each axis composing them, such as axes of the first proximal phalanx (PP1), the first metatarsal (MT1), and the second metatarsal (MT2) in patients with a metatarsal shaft osteotomy-modified long oblique osteotomy...
February 15, 2019: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://read.qxmd.com/read/30772995/reliable-measurements-of-physiologic-ankle-syndesmosis-widening-using-dynamic-3d-ultrasonography-a-preliminary-study
#7
Seung Woo Cha, Kee Jeong Bae, Jee Won Chai, Jina Park, Yoon-Hee Choi, Dong Hyun Kim
Purpose: The purpose of this study was to present a technique for measuring physiologic distal tibiofibular syndesmosis widening using 3-dimensional ultrasonography (3D-US) with an evaluation of its reliability, and to determine whether there were differences in the measurements between different dynamic stress tests. Methods: We retrospectively evaluated 3D-US of 20 subjects with normal ankle syndesmosis. 3D-US was performed in neutral (N), dorsiflexion with external rotation (DFER), and weight-bearing standing (WB) positions at the anterior inferior tibiofibular ligament level in both ankles for comparison...
November 14, 2018: Ultrasonography
https://read.qxmd.com/read/30772972/-magnetic-resonance-imaging-study-of-endolymphatic-hydrops-based-on-3d-flair-sequence-after-single-dose-intravenous-gadolinium-injection
#8
Y Lin, Z Y Wang, Z R Zhang, X Zheng, Q H Chen, H J Wang, X P Hao, Y X Li, J F Xian, B T Yang
Objective: To investigate the visualization of endolymph in patients with otogenic vertigo by intravenous administration of single dose of gadolinium contrast agents and magnetic resonance three-dimensional fluid-attenuated inversion recovery sequence (3D-FLAIR MRI), and further assess the extent of endolymphatic hydrops. Methods: From Beijing Tongren Hospital of Capital Medical University between October 2017 and June 2018, 30 patients (16 males, 14 females) with unilateral otogenic vertigo were involved in this study, with the age of 30 to 68 years, mean age of (53±10) years...
January 29, 2019: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://read.qxmd.com/read/30772192/reproducibility-of-semi-automated-three-dimensional-volumetric-analysis-using-cardiac-computed-tomography-in-patients-with-left-ventricular-assist-device
#9
Gauravpal S Gill, Gaby Weissman, Yael F Meirovich, Diego Medvedofsky, Selma F Mohammed, Ron Waksman, Hector M Garcia-Garcia
BACKGROUND: Multi-detector gated cardiac computed tomography (CCT) allows three-dimensional (3D) quantification of cardiac chambers and is clinically indicated to assess left ventricular assist device (LVAD) malfunction and complications. Automated volumetric analysis is, however, disrupted by inflow cannula artifact in patients with LVAD. With this study, we evaluated intra-observer variability in semi-automated 3D cardiac volumetric analysis using CCT in patients with LVADs. METHODS: Ten clinically indicated CCTs were studied retrospectively from 9 patients with LVADs...
January 23, 2019: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://read.qxmd.com/read/30771595/reliability-of-peak-foot-pressure-in-patients-with-previous-diabetic-foot-ulceration
#10
Pei-Yueng Lee, Pui-Wah Kong, Yong-Hao Pua
BACKGROUND: Previous reliability studies on peak plantar pressure measurements in patients with previous diabetic foot ulceration (DFU) did not stratify their analyses according to whether the foot had a previous ulcer. RESEARCH QUESTION: Does test-retest reliability of peak foot pressure measurements from the various foot regions differ between the ulcerated and non-ulcerated feet? METHODS: Data from 23 participants with peripheral neuropathy and healed plantar DFU were analysed in this test-retest reliability comparison study...
February 4, 2019: Gait & Posture
https://read.qxmd.com/read/30771201/high-dose-radiation-therapy-is-needed-for-intracranial-control-and-long-term-survival-in-patients-with-non-seminomatous-germ-cell-tumor-brain-metastases
#11
Dana L Casey, Kenneth L Pitter, Brandon S Imber, Andrew Lin, Timothy A Chan, Kathryn Beal, Yoshiya Yamada, Darren R Feldman, T Jonathan Yang
PURPOSE: The presence of brain metastases (BM) in patients with non-seminomatous germ cell tumor (NSGCT) is associated with poor prognosis. While radiation therapy (RT) is an important treatment for patients with NSGCT BM, there is a paucity of data on the optimal regimen. We sought to investigate the impact of RT on clinical outcomes in patients with NSGCT BM. METHODS: Patients with NSGCT BM who received RT at our institution from 2002 to 2017 were included. Sixty-three consecutive patients were identified...
February 15, 2019: Journal of Neuro-oncology
https://read.qxmd.com/read/30771103/visual-inspection-of-transvaginal-ultrasound-videos-to-characterize-uterine-peristalsis-an-inter-observer-agreement-study
#12
N P M Kuijsters, F Sammali, C Rabotti, Y Huang, M Mischi, B C Schoot
PURPOSE: Contractions in non-pregnant uterine can be assessed by visual inspection of transvaginal ultrasound (TVUS). Many authors have used this method to extract features like contraction frequency and direction. However, visual inspection is a subjective method and the outcome is dependent on the sonographers and video analysts. In this study, we wanted to see which uterine feature is reproducible enough, in terms of inter-observer agreement, to serve as a reliable control for future research...
February 15, 2019: Journal of Ultrasound
https://read.qxmd.com/read/30771059/sensitivity-and-reliability-of-cerebral-oxygenation-responses-to-postural-changes-measured-with-near-infrared-spectroscopy
#13
Arjen Mol, Jeffrey H H Woltering, Willy N J M Colier, Andrea B Maier, Carel G M Meskers, Richard J A van Wezel
PURPOSE: Cerebral oxygenation as measured by near-infrared spectroscopy (NIRS) might be useful to discriminate between physiological and pathological responses after standing up in individuals with orthostatic hypotension. This study addressed the physiological sensitivity of the cerebral oxygenation responses as measured by NIRS to different types and speeds of postural changes in healthy adults and assessed the reliability of these responses. METHODS: Cerebral oxygenated hemoglobin (O2 Hb), deoxygenated hemoglobin (HHb) and tissue saturation index (TSI) were measured bilaterally on the forehead of 15 healthy individuals (12 male, age range 18-27) using NIRS...
February 15, 2019: European Journal of Applied Physiology
https://read.qxmd.com/read/30770607/validity-and-reliability-of-lower-limb-pulse-wave-velocity-assessments-using-an-oscillometric-technique
#14
Keeron Stone, Simon Fryer, Elizabeth Kelsch, Kathryn Burnet, Gabriel Zieff, James Faulkner, Daniel Credeur, Danielle Lambrick, Erik D Hanson, Lee Stoner
NEW FINDINGS: What is the central question of this study? There is growing interest on the effects of sedentarism on central and peripheral cardiovascular health. To permit further investigation, including in larger epidemiological studies, there is a need to identify arterial health assessment tools that are valid (accurate) and reliable (precise), yet practical. What is the main finding and its importance? Lower-limb vascular health (femoral-ankle pulse-wave velocity) can be determined in a supine position with accuracy and precision using an oscillometric-based device...
February 16, 2019: Experimental Physiology
https://read.qxmd.com/read/30770513/omeract-hip-inflammation-magnetic-resonance-imaging-scoring-system-himriss-assessment-in-longitudinal-study
#15
Jacob L Jaremko, Robert G W Lambert, Susanne J Pedersen, Ulrich Weber, Duncan Lindsay, Zeid Al-Ani, Kieran Steer, Marcus Pianta, Stephanie Wichuk, Walter P Maksymowych
OBJECTIVE: To assess reliability, feasibility, and responsiveness of Hip Inflammation Magnetic resonance imaging Scoring System (HIMRISS) for bone marrow lesions (BML) in hip osteoarthritis (OA). METHODS: HIMRISS was scored by 8 readers in 360 hips of 90 patients imaged pre/post-hip steroid injection. Pre-scoring, new readers trained online to achieve intraclass correlation coefficient (ICC) > 0.80 versus experts. RESULTS: HIMRISS reliability was excellent for BML status (ICC 0...
February 15, 2019: Journal of Rheumatology
https://read.qxmd.com/read/30770508/development-and-validation-of-an-omeract-mri-whole-body-score-for-inflammation-in-peripheral-joints-and-entheses-in-inflammatory-arthritis-mri-wipe
#16
Simon Krabbe, Iris Eshed, Frédérique Gandjbakhch, Susanne J Pedersen, Paul Bird, Ashish J Mathew, Robert G Lambert, Walter P Maksymowych, Daniel Glinatsi, Maria S Stoenoiu, René Poggenborg, Lennart Jans, Jacob L Jaremko, Nele Herregods, Violaine Foltz, Philip G Conaghan, Christian E Althoff, Joel Paschke, Charles Peterfy, Kay-Geert A Hermann, Mikkel Østergaard
OBJECTIVE: To develop a whole-body MRI-scoring system for peripheral arthritis and enthesitis. METHODS: After consensus on definitions/locations of MRI pathologies, four multi-reader exercises were performed. Eighty-three joints were scored 0-3 separately for synovitis and osteitis, thirty-three entheses 0-3 separately for soft tissue inflammation and osteitis. RESULTS: In the last exercise, reliability was moderate-good for musculoskeletal radiologists and rheumatologists with previously demonstrated good scoring proficiency...
February 15, 2019: Journal of Rheumatology
https://read.qxmd.com/read/30770335/skeletal-and-dental-relationships-in-vertical-non-vertical-growers-using-cbct
#17
Kacey Tung, Manuel O Lagravère
The purpose of this study was to determine if there were any common skeletal and dental structural characteristics obtained from CBCTs of patients with different growth patterns (Vertical or Non-Vertical). Sixty-three patients were previously categorized as vertical or not vertical grower using clinical examination and 2D cephalometric created images. Twenty-three landmarks were selected to examine CBCT images and used to calculate linear and angle measurements using geometric and trigonometric equations. Statistical analysis was done using SPSS statistical package and ICC values showed excellent reliability...
February 12, 2019: International Orthodontics
https://read.qxmd.com/read/30768226/choroidal-vascularity-index-using-swept-source-and-spectral-domain-optical-coherence-tomography-a-comparative-study
#18
Rupesh Agrawal, Sophia Seen, Shiva Vaishnavi, Kiran Kumar Vupparaboina, Abhilash Goud, Mohammed Abdul Rasheed, Jay Chhablani
BACKGROUND AND OBJECTIVE: Choroidal vascularity index (CVI) is a noninvasive tool to assess choroidal structure. The objective of the current study was to compare the CVI measurements on swept-source optical coherence tomography (SS-OCT) and spectral-domain OCT (SD-OCT) scans using the same image binarization protocol. PATIENTS AND METHODS: This prospective study was conducted from July 2016 through January 2017 and involved 54 healthy volunteers at a tertiary referral eye care institute in Southern India...
February 1, 2019: Ophthalmic Surgery, Lasers & Imaging Retina
https://read.qxmd.com/read/30767773/computed-tomography-volumetry-of-esophageal-cancer-the-role-of-semiautomatic-assessment
#19
Yi-Hua Zhang, Michael A Fischer, Henrik Lehmann, Åse Johnsson, Ioannis Rouvelas, Gunnar Herlin, Lars Lundell, Torkel B Brismar
BACKGROUND: The clinical and research value of Computed Tomography (CT) volumetry of esophageal cancer tumor size remains controversial. Development in CT technique and image analysis has made CT volumetry less cumbersome and it has gained renewed attention. The aim of this study was to assess esophageal tumor volume by semi-automatic measurements as compared to manual. METHODS: A total of 23 esophageal cancer patients (median age 65, range 51-71), undergoing CT in the portal-venous phase for tumor staging, were retrospectively included between 2007 and 2012...
February 15, 2019: BMC Medical Imaging
https://read.qxmd.com/read/30765917/vibration-effect-on-ball-score-test-in-international-vs-national-level-table-tennis
#20
Luca P Ardigò, Antonio Dello Iacono, Alessandro M Zagatto, Nicola L Bragazzi, Goran Kuvacic, Marianna Bellafiore, Johnny Padulo
In table tennis, motor skills are crucial for discriminating player level. However, there is a dearth of studies exploring the impact of a vibrational stimulus on performance. Thirty-four male players (age 25±2 years; body mass index, BMI 23.4±1.2 kg·m -2 ) participated in the study. Seventeen played at international level (IL), while the remaining 17 played at national level (NL). The participants underwent a ball-handling test, the ball score, before (PRE) and after (POST) a vibrational stimulus. Intra-class correlation (ICC) for the ball score result showed good reliability (ICC 0...
December 2018: Biology of Sport
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