نتایج جستجو برای: patient motion

تعداد نتایج: 914097  

Journal: :Physical therapy 1999
R M Rine M C Schubert T J Balkany

BACKGROUND AND PURPOSE This case report describes physical therapy for motion sickness in a 34-year-old woman. The purpose of the report is twofold: (1) to provide an overview of the literature regarding motion sickness syndrome, causal factors, and rationale for treatment and (2) to describe the evaluation and treatment of a patient with motion sickness. CASE DESCRIPTION AND OUTCOMES The pat...

Journal: :Computer methods in biomechanics and biomedical engineering 2010
Maureen Stone Xiaofeng Liu Hegang Chen Jerry L Prince

Complex patterns of muscle contractions create gross tongue motion during speech. It is of scientific and medical importance to better understand speech motor strategies and variations due to language or disorders. Dense patterns of tongue motion can be imaged using tagged magnetic resonance imaging, but characterisation of motion strategies is difficult using visualisation alone. This paper ex...

Journal: :Journal of nuclear medicine technology 2011
Russell D Folks Daya Manatunga Ernest V Garcia Andrew T Taylor

UNLABELLED Kidney motion during dynamic renal scintigraphy can cause errors in calculated renal function parameters. Our goal was to develop and validate algorithms to detect and correct patient motion. METHODS We retrospectively collected dynamic images from 86 clinical renal studies (42 women, 44 men), acquired using (99m)Tc-mercaptoacetyltriglycine (80 image frames [128 × 128 pixels; 3.2 m...

Journal: :Journal of nuclear medicine : official publication, Society of Nuclear Medicine 2010
R Glenn Wells Terrence D Ruddy Rob A DeKemp Jean N DaSilva Rob S Beanlands

UNLABELLED Respiratory motion can induce artifacts in cardiac PET/CT because of the misregistration of the CT attenuation map and emission data. Some solutions to the respiratory motion problem use 4-dimensional CT, but this increases patient radiation exposure. Realignment of 3-dimensional CT and PET images can remove apparent uptake defects caused by mispositioning of the PET emission data in...

Journal: :Acta orthopaedica Belgica 2007
Yehuda Ullmann Lucian Fodor Michael Soudry Alexander Lerner

This study was designed to evaluate the results of treatment of joint contractures (6 patients) and dislocations (2 cases) with an Ilizarov device. Six patients with restricting joint contractures were successfully treated and after gradual scar expansion they achieved a significant improvement in their range of motion. One patient with elbow instability after closed dislocation achieved 5 degr...

Journal: :Optics express 2008
Tao T Wu Tak-Hong Cheung So-Fan Yim Jianan Y Qu

A 3-D optical imaging system based on active stereo vision and motion tracking is built to track the motion of patient and to register the time-sequenced images of cervix recorded during colposcopy. The imaging system is evaluated by examining human subjects in vivo before routine colposcopy examination procedures. The system tracks the motion of patient accurately. The temporal kinetics of the...

2017
Benedikt Lorch Ghislain Vaillant Christian Baumgartner Wenjia Bai Daniel Rueckert Andreas Maier

The acquisition of a Magnetic Resonance (MR) scan usually takes longer than subjects can remain still. Movement of the subject such as bulk patient motion or respiratory motion degrades the image quality and its diagnostic value by producing image artefacts like ghosting, blurring, and smearing. This work focuses on the effect of motion on the reconstructed slices and the detection of motion ar...

2016
Masami GOTO Osamu ABE Tosiaki MIYATI Hidenori YAMASUE Tsutomu GOMI Tohoru TAKEDA

Resting-state functional magnetic resonance imaging (RS-fMRI) is used to investigate brain functional connectivity at rest. However, noise from human physiological motion is an unresolved problem associated with this technique. Following the unexpected previous result that group differences in head motion between control and patient groups caused group differences in the resting-state network w...

2009
Chuanyong Bai Jamshid Maddahi Joel Kindem Richard Conwell Michael Gurley Rex Old

BACKGROUND In cardiac SPECT perfusion imaging, motion correction of the data is critical to the minimization of motion introduced artifacts in the reconstructed images. Software-based (data-driven) motion correction techniques are the most convenient and economical approaches to fulfill this purpose. However, the accuracy is significantly affected by how the data complexities, such as activity ...

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