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https://www.readbyqxmd.com/read/29215500/feasibility-and-accuracy-of-thoracolumbar-minimally-invasive-pedicle-screw-placement-with-augmented-reality-navigation-technology
#1
Adrian Elmi Terander, Rami Nachabe, Halldor Skulason, Kyrre Pedersen, Michael Söderman, John Racadio, Drazenko Babic, Paul Gerdhem, Erik Edström
STUDY DESIGN: Cadaveric laboratory study. OBJECTIVE: To assess the feasibility and accuracy of minimally invasive thoracolumbar pedicle screw placement using augmented reality (AR) surgical navigation SUMMARY OF BACKGROUND DATA.: Minimally invasive spine (MIS) surgery has increasingly become the method of choice for a wide variety of spine pathologies. Navigation technology based on AR has been shown to be feasible, accurate and safe in open procedures. AR technology may also be used for MIS surgery...
December 5, 2017: Spine
https://www.readbyqxmd.com/read/29205787/system-for-ct-guided-needle-placement-in-the-thorax-and-abdomen-a-design-for-clinical-acceptability-applicability-and-usability
#2
Maarten M Arnolli, Martijn Buijze, Michel Franken, Koert P de Jong, Dannis M Brouwer, Ivo A M J Broeders
BACKGROUND: Various systems exist for CT-guided needle placement in the thorax and abdomen, but widespread adoption is lacking. The goal of this work is to develop a system for precise needle placement with a design focus on clinical acceptability, applicability and usability. METHODS: A system was outlined incorporating a needle guide on a mechanism with a remote centre of motion, manually placeable around the patient at the desired entry point and lockable by push-button to the CT table...
December 5, 2017: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/29189398/quantification-of-the-effect-of-shuttling-on-computed-tomography-perfusion-parameters-by-investigation-of-aortic-inputs-on-different-table-positions-from-shuttle-mode-scans-of-lung-and-liver-tumors
#3
Payel Ghosh, Adam G Chandler, Brian P Hobbs, Jia Sun, John Rong, David Hong, Vivek Subbiah, Filip Janku, Aung Naing, Wen-Jen Hwu, Chaan S Ng
OBJECTIVES: The aim of this study was to quantify the effect of shuttling on computed tomography perfusion (CTp) parameters derived from shuttle-mode body CT images using aortic inputs from different table positions. METHODS: Axial shuttle-mode CT scans were acquired from 6 patients (10 phases, 2 nonoverlapping table positions 1.4 seconds apart) after contrast agent administration. Artifacts resulting from the shuttling motion were corrected with nonrigid registration before computing CTp maps from 4 aortic levels chosen from the most superior and inferior slices of each table position scan...
November 16, 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/29185676/effect-of-physiotherapeutic-intervention-on-the-gait-after-the-application-of-botulinum-toxin-in-children-with-cerebral-palsy-systematic-review
#4
Paulo R Fonseca, Renata C Franco de Moura, Manuela Galli, Claudia Santos Oliveira
BACKGROUND: Cerebral palsy is a group of movement and posture development disorders. 90% of this population has gait impairment, often due to the presence of spasticity. A number of studies emphasize the importance of combined physical therapy with botulinum toxin A treatment. However, no consensus can be reached concerning the content of the physiotherapy programme after treatment with botulinum toxin A. AIM: The purpose of the present study was to investigate, through a systematic review of the literature, the effects of physiotherapeutic intervention on gait after botulinum toxin application in children with cerebral palsy...
November 29, 2017: European Journal of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/29140167/intra-tester-reliability-and-construct-validity-of-a-hip-abductor-eccentric-strength-test
#5
Richard A Brindle, D David Ebaugh, Clare E Milner
CONTEXT: Side-lying hip abductor strength tests are commonly used to evaluate muscle strength. In a 'break' test the tester applies sufficient force to lower the limb to the table while the patient resists. The peak force is postulated to occur while the leg is lowering, thus representing the participant's eccentric muscle strength. However, it is unclear whether peak force occurs before or after the leg begins to lower. OBJECTIVES: To determine intra-rater reliability and construct validity of a hip abductor eccentric strength test...
November 15, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/29091003/american-college-of-radiology-compliant-short-protocol-breast-mri-for-high-risk-breast-cancer-screening-a-prospective-feasibility-study
#6
Basak E Dogan, Marion E Scoggins, Jong Bum Son, Wei Wei, Rosalind Candelaria, Wei T Yang, Jingfei Ma
OBJECTIVE: The purpose of this study was to assess the feasibility of a short protocol for screening breast MRI that is noninferior to standard-of-care (SOC) MRI in image quality that complies with American College of Radiology accreditation requirements. SUBJECTS AND METHODS: In a prospective feasibility trial, 23 women at high risk underwent both an initial SOC MRI examination that included axial iterative decomposition of water and fat with echo asymmetry and least-squares estimation (IDEAL) and T1-weighted volume imaging for breast assessment (VIBRANT) dynamic contrast-enhanced sequences and a separate short breast MRI protocol comprising a fast spin-echo (FSE) triple-echo Dixon T2 sequence for T2-weighted imaging and a 3D dual-echo fast spoiled gradient-echo two-point Dixon sequence for dynamic contrast-enhanced imaging from October 1, 2015, through May 2, 2016...
November 1, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29081938/static-progressive-orthoses-for-elbow-contracture-a-systematic-review
#7
REVIEW
Bin Chen, Jianhua Lin, Lifen Liu, Wenxin Niu
BACKGROUND: As one of the most common musculoskeletal complications following trauma, elbow contracture is a frequent source of disabled daily activities. Conventional interventions are inadequate to provide favorable outcome. The static progressive orthoses are getting popular in the treatment of this problem. OBJECTIVE: The purpose of this review was to assess the effectiveness of static progressive orthoses for elbow contracture. METHODS: Literatures when written in English published during 1 January 1997 and 31 January 2017 were searched in the following databases: Web of Science, Cochrane Library, PubMed, and EBSCOhost...
2017: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29072002/-clinical-trials-for-treatment-of-acute-lumbar-sprain-by-acupuncture-stimulation-of-yaotong-and-local-ashi-points-in-combination-with-patients-lumbar-movement
#8
Li-Li Liu, Jing Lu, Hui-Fang Ma
OBJECTIVE: To observe the clinical effect of acupuncture stimulation of "Yaotong"-point (one acupoint of balance acupuncture therapy) and Ashi-points combined with patients' lumbar movement in the treatment of acute lumbar sprain. METHODS: Forty-six acute lumbar sprain patients were randomized into treatment group (26 cases) and control group (20 cases) using a random number table. The patients of the treatment group were treated by acupuncture stimulation of "Yaotong"-point[above Yintang (EX-HN 3)] and local Ashi-points for 20 min, and were asked to move the waist simultaneously during acupuncture stimulation...
February 25, 2017: Zhen Ci Yan Jiu, Acupuncture Research
https://www.readbyqxmd.com/read/29066982/foot-placement-characteristics-and-plantar-pressure-distribution-patterns-during-stepping-on-ground-in-neonates
#9
F Sylos-Labini, S Magnani, G Cappellini, V La Scaleia, A Fabiano, S Picone, P Paolillo, A Di Paolo, F Lacquaniti, Y Ivanenko
Stepping on ground can be evoked in human neonates, though it is rather irregular and stereotyped heel-to-toe roll-over pattern is lacking. Such investigations can provide insights into the role of contact- or load-related proprioceptive feedback during early development of locomotion. However, the detailed characteristics of foot placements and their association with motor patterns are still incompletely documented. We elicited stepping in 33 neonates supported on a table. Unilateral limb kinematics, bilateral plantar pressure distribution and EMG activity from up to 11 ipsilateral leg muscles were recorded...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29043083/a-framework-for-continuous-target-tracking-during-mr-guided-high-intensity-focused-ultrasound-thermal-ablations-in-the-abdomen
#10
Cornel Zachiu, Baudouin Denis de Senneville, Ivan D Dmitriev, Chrit T W Moonen, Mario Ries
BACKGROUND: During lengthy magnetic resonance-guided high intensity focused ultrasound (MRg-HIFU) thermal ablations in abdominal organs, the therapeutic work-flow is frequently hampered by various types of physiological motion occurring at different time-scales. If left un-addressed this can lead to an incomplete therapy and/or to tissue damage of organs-at-risk. While previous studies focus on correction schemes for displacements occurring at a particular time-scale within the work-flow of an MRg-HIFU therapy, in the current work we propose a motion correction strategy encompassing the entire work-flow...
2017: Journal of Therapeutic Ultrasound
https://www.readbyqxmd.com/read/29039723/glenohumeral-internal-rotation-deficit-in-table-tennis-players
#11
Danilo Harudy Kamonseki, Luísa Cedin, Fernanda Assis Paes Habechian, Guigliano Franco Piccolomo, Paula Rezende Camargo
Table tennis requires rapid and extreme movements that may result in shoulder adaptations, such as glenohumeral internal rotation deficit, which is a risk factor for several injuries. This study compared range of motion of internal and external rotation and total rotation motion of glenohumeral joint between dominant and non-dominant shoulders of table tennis players. This is a cross-sectional observational study. Twenty healthy male table tennis players that were enrolled in an official table tennis league took part in this study (mean age: 22...
October 17, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29039378/dna-encoding-training-using-3d-gesture-interaction
#12
Stelian Nicola, Flavia-Laura Handrea, Mihaela Crişan-Vida, Lăcrămioara Stoicu-Tivadar
The work described in this paper summarizes the development process and presents the results of a human genetics training application, studying the 20 amino acids formed by the combination of the 3 nucleotides of DNA targeting mainly medical and bioinformatics students. Currently, the domain applications using recognized human gestures of the Leap Motion sensor are used in molecules controlling and learning from Mendeleev table or in visualizing the animated reactions of specific molecules with water. The novelty in the current application consists in using the Leap Motion sensor creating new gestures for the application control and creating a tag based algorithm corresponding to each amino acid, depending on the position in the 3D virtual space of the 4 nucleotides of DNA and their type...
2017: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/28975133/pectoralis-minor-contracture-in-throwing-shoulders-of-asymptomatic-adolescent-baseball-players
#13
Justin L Hodgins, William Rubenstein, David Kovacevic, Ajay Padaki, Charles M Jobin, Christopher S Ahmad
BACKGROUND: Although scapular malpositioning is commonly associated with rotational deficits and risk of injury, modifiable causes of such malpositioning in overhead athletes are not well described. PURPOSE/HYPOTHESIS: The purpose of this study was to examine the scapulothoracic profile of adolescent baseball players, specifically, pectoralis minor (PM) length. We hypothesized that PM would be shorter in throwing shoulders compared with nonthrowing shoulders. STUDY DESIGN: Cross-sectional study; Level of evidence, 3...
September 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28960795/gastric-myoelectrical-and-neurohormonal-changes-associated-with-nausea-during-tilt-induced-syncope
#14
G L Heyer, L H Boles, R A Harvey, M J Cismowski
BACKGROUND: Nausea is a common prodromal symptom of neurally mediated syncope, but the biological factors linking nausea with syncope have not been studied. We aimed to characterize nausea during tilt-induced syncope by exploring related changes in gastric myoelectrical activity and plasma epinephrine, norepinephrine, and vasopressin concentrations across study phases of recumbency, tilt, syncope, and recovery. METHODS: Electrogastrographic and plasma hormone changes were compared between patients with tilt-induced syncope and nausea (n = 18) and control subjects (n = 6) without symptoms or hemodynamic changes during tilt-table testing...
September 27, 2017: Neurogastroenterology and Motility: the Official Journal of the European Gastrointestinal Motility Society
https://www.readbyqxmd.com/read/28952845/identification-of-movement-strategies-during-the-sit-to-walk-movement-in-patients-with-knee-osteoarthritis
#15
Dimitrios-Sokratis Komaris, Cheral Govind, Andrew Murphy, Alistair Ewen, Philip Riches
Patients with osteoarthritis of the knee commonly alter their movement to compensate for lower limb weakness and alleviate joint pain. Movement alterations may lead to weight-bearing asymmetries, and potentially in the progression of the disease. This study presents a novel numerical procedure for the identification of sit-to-walk strategies and differences in movement habits between control adults and persons with knee osteoarthritis. Ten control and twelve participants with osteoarthritis performed the sit-to-walk task in a motion capture laboratory...
September 27, 2017: Journal of Applied Biomechanics
https://www.readbyqxmd.com/read/28943696/automated-3d-coronary-sinus-catheter-detection-using-a-scanning-beam-digital-x-ray-system
#16
David A P Dunkerley, Jordan M Slagowski, Lindsay E Bodart, Michael A Speidel
Scanning-beam digital x-ray (SBDX) is an inverse geometry x-ray fluoroscopy system capable of tomosynthesis-based 3D tracking of catheter electrodes concurrent with fluoroscopic display. To facilitate respiratory motion-compensated 3D catheter tracking, an automated coronary sinus (CS) catheter detection algorithm for SBDX was developed. The technique uses the 3D localization capability of SBDX and prior knowledge of the catheter shape. Candidate groups of points representing the CS catheter are obtained from a 3D shape-constrained search...
February 2017: Proceedings of SPIE
https://www.readbyqxmd.com/read/28939425/kinematic-analysis-of-a-drinking-task-in-chronic-hemiparetic-patients-using-features-analysis-and-statistical-parametric-mapping
#17
Gabriela Lopes Santos, Thiago Luiz Russo, Angela Nieuwenhuys, Davide Monari, Kaat Desloovere
OBJECTIVE: To compare sitting posture and movement strategies between chronic hemiparetic and healthy subjects while performing a drinking task using Statistical Parametric Mapping (SPM) and feature analysis. DESIGN: Cross-sectional study. SETTING: Department of Physical Therapy of University. PARTICIPANTS: Thirteen chronic hemiparetic and thirteen healthy individuals matched for gender and age. INTERVENTION: Not applicable...
September 19, 2017: Archives of Physical Medicine and Rehabilitation
https://www.readbyqxmd.com/read/28929274/minimally-invasive-posterior-cervical-foraminotomy-for-treatment-of-radiculopathy-an-effective-time-tested-and-cost-efficient-motion-preservation-technique
#18
REVIEW
L Papavero, R Kothe
OBJECTIVE: To relieve foraminal root impingement due to lateral soft disc fragments, bony spurs, or other rarer causes. INDICATIONS: Soft disc fragment whose bulk is >2/3 lateral to the lateral border of the thecal sac. Intraforaminal dorsal bony narrowing of the root canal. Intraforaminal synovial cyst, extra/intradural tumor. CONTRAINDICATIONS: Paramedian and median soft/hard disc protrusions. Kyphosis of the index level. SURGICAL TECHNIQUE: Patient prone in reverse Trendelenburg position with the head fixed in a Mayfield clamp...
September 19, 2017: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/28927995/measuring-system-for-an-attitude-angle-of-a-denture-using-an-inertial-measurement-unit
#19
Toshiaki Sekita, Syuhei Takeuchi, Syunsuke Minakuchi
PURPOSE: The aim of this study was to assemble and verify a measuring system for 3-D movements (attitude angle) of the denture during function. METHODS: For the calibration test, the sensor was fixed at the center of the rotary table. Operation and stopping of the rotary table were repeated 8 times, and the direction of rotation was reversed in the middle. The amount of rotation was 1.2 and 2.4°. As a pilot clinical trial, the attitude angles of three upper complete dentures during tapping were measured by this system...
September 15, 2017: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/28922042/reliability-and-criterion-validity-of-measurements-using-a-smart-phone-based-measurement-tool-for-the-transverse-rotation-angle-of-the-pelvis-during-single-leg-lifting
#20
Sung-Hoon Jung, Oh-Yun Kwon, In-Cheol Jeon, Ui-Jae Hwang, Jong-Hyuck Weon
OBJECTIVE: The purposes of this study were to determine the intra-rater test-retest reliability of a smart phone-based measurement tool (SBMT) and a three-dimensional (3D) motion analysis system for measuring the transverse rotation angle of the pelvis during single-leg lifting (SLL) and the criterion validity of the transverse rotation angle of the pelvis measurement using SBMT compared with a 3D motion analysis system (3DMAS). METHOD: Seventeen healthy volunteers performed SLL with their dominant leg without bending the knee until they reached a target placed 20 cm above the table...
September 18, 2017: Physiotherapy Theory and Practice
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