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Keywords: MRI
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Journal Articles
Article Type: Research-Article
J Biomech Eng. November 2019, 141(11): 111010.
Paper No: BIO-19-1062
Published Online: July 31, 2019
... a stiffness distribution through the thrombus thickness. In this work, we use magnetic resonance imaging (MRI) to delineate the heterogeneous composition of ILT in 7 AAAs and perform patient–specific finite element analysis under multiple conditions of ILT layer stiffness disparity. We find that explicit...
Includes: Supplementary data
Journal Articles
Article Type: Research-Article
J Biomech Eng. October 2014, 136(10): 101008.
Paper No: BIO-13-1535
Published Online: August 12, 2014
... dynamics (CFD) calculations in this experimental model. The CFD calculations use inputs based on experimental measurements from ultrasound (US), micro computed tomography (CT), and both anatomical magnetic resonance imaging (MRI) and phase contrast MRI (PC-MRI). The adequacy of five different levels...
Journal Articles
Article Type: Design Innovation Paper
J Biomech Eng. September 2014, 136(9): 095001.
Paper No: BIO-14-1053
Published Online: June 26, 2014
... developed a novel magnetic resonance imaging (MRI)-compatible test apparatus that can impose either a contusion-type or dislocation-type acute cervical SCI in a rodent model and facilitate MR-imaging of the cervical spinal cord in a 7 T MR scanner. In this study, we present the experimental performance...
Journal Articles
Article Type: Research-Article
J Biomech Eng. October 2013, 135(10): 101002.
Paper No: BIO-12-1601
Published Online: September 13, 2013
... for the spatial variations in cartilage thickness and capture both cartilage thinning and swelling, could enhance the capacity to detect OA-related differences between knees. cartilage thickness knee osteoarthritis morphology MRI thickness pattern thickness shape Knee osteoarthritis (OA...
Journal Articles
Article Type: Technical Briefs
J Biomech Eng. March 2013, 135(3): 034502.
Paper No: BIO-12-1261
Published Online: February 11, 2013
... gating MRI tissue tagging strain Cardiac imaging using magnetic resonance (MR) requires several heart beats to reconstruct one cardiac cycle because of limitations in temporal resolution. One can imagine the cardiac cycle being divided into a number of bins, each bin representing a time-frame...
Journal Articles
Article Type: Research Papers
J Biomech Eng. January 2012, 134(1): 011008.
Published Online: February 9, 2012
...Haofei Liu; Gador Canton; Chun Yuan; Chun Yang; Kristen Billiar; Zhongzhao Teng; Allen H. Hoffman; Dalin Tang In vivo magnetic resonance image (MRI)-based computational models have been introduced to calculate atherosclerotic plaque stress and strain conditions for possible rupture predictions...
Journal Articles
Article Type: Research Papers
J Biomech Eng. October 2011, 133(10): 101005.
Published Online: October 31, 2011
...Yangqiu Hu; William R. Ledoux; Michael Fassbind; Eric S. Rohr; Bruce J. Sangeorzan; David Haynor We report an image segmentation and registration method for studying joint morphology and kinematics from in vivo magnetic resonance imaging (MRI) scans and its application to the analysis of foot...
Journal Articles
Article Type: Technical Briefs
J Biomech Eng. June 2011, 133(6): 064503.
Published Online: June 14, 2011
.... A novel combination of computational and statistical models based on serial magnetic resonance imaging (MRI) was introduced to quantify sensitivity and specificity of mechanical predictors to identify the best candidate for plaque rupture site prediction. Serial in vivo MRI data of carotid plaque from one...
Journal Articles
Article Type: Research Papers
J Biomech Eng. October 2010, 132(10): 101008.
Published Online: October 1, 2010
... be determined according to the recipient size and there is a need to estimate it from magnetic resonance imaging (MRI) of the contralateral knee or the injured knee bones. The use of the contralateral-knee for size matching is problematic due to economic and practical reasons. Hence, there are significant...
Journal Articles
Article Type: Research Papers
J Biomech Eng. October 2010, 132(10): 101004.
Published Online: October 1, 2010
... is heterogeneous and anisotropic. We developed and applied a new technique to measure spatial and directional variations in surface growth from longitudinal magnetic resonance imaging (MRI) studies of a single animal or human subject. MRI provides high resolution 3D image volumes of the brain at different stages...
Journal Articles
Article Type: Research Papers
J Biomech Eng. August 2010, 132(8): 081005.
Published Online: June 15, 2010
... and sonication times between 20 s and 40 s. It was found that histology consistently yielded lower lesion volumes than the other two methods, and the calculated values were below magnetic resonance imaging (MRI) at high applied energies. Still, the three methods agreed with each other to within a ± 10...
Journal Articles
Article Type: Research Papers
J Biomech Eng. July 2010, 132(7): 071014.
Published Online: June 2, 2010
...Shogo Miyata; Kazuhiro Homma; Tomokazu Numano; Tetsuya Tateishi; Takashi Ushida Applying tissue-engineered cartilage in a clinical setting requires noninvasive evaluation to detect the maturity of the cartilage. Magnetic resonance imaging (MRI) of articular cartilage has been widely accepted...
Journal Articles
Article Type: Technical Briefs
J Biomech Eng. June 2010, 132(6): 064503.
Published Online: April 28, 2010
... (MRI) since the laser energy delivery system does not interfere with MRI. This report deals with mathematical modeling and analysis of laser coagulation of tissue. This model is intended for “real-time” analysis of magnetic resonance images obtained during the coagulation process to guide clinical...
Journal Articles
Article Type: Research Papers
J Biomech Eng. April 2010, 132(4): 041007.
Published Online: March 18, 2010
...Matthew F. Koff; Le Roy Chong; Patrick Virtue; Dan Chen; Xioanan Wang; Timothy Wright; Hollis G. Potter Different methods have been used to cross-validate cartilage thickness measurements from magnetic resonance images (MRIs); however, a majority of these methods rely on interpolated data points...
Journal Articles
Article Type: Research Papers
J Biomech Eng. March 2010, 132(3): 031007.
Published Online: February 17, 2010
... models have been introduced seeking critical mechanical indicators, which may be used for plaque vulnerability assessment. This study extends the previous 2D critical stress concept to 3D by using in vivo magnetic resonance image (MRI) data of human atherosclerotic carotid plaques and 3D fluid-structure...
Journal Articles
Article Type: Research Papers
J Biomech Eng. December 2009, 131(12): 121002.
Published Online: October 29, 2009
... 29 10 2009 bifurcation biological tissues biomechanics biomedical MRI fracture lipid bilayers artery calcification carotid bifurcation fibrous cap lipid core MRI vulnerability Atherosclerosis is the main determinant of cardiovascular diseases, the leading cause...
Journal Articles
Article Type: Research Papers
J Biomech Eng. December 2009, 131(12): 121004.
Published Online: October 29, 2009
... compared point wise for the overall surface. The linear mixed-effects model was used for statistical test. On average, taking account of individual variations, the thickness measurements in MRI were overestimated in thinner ( < 2.5 mm ) regions. The cartilage thicker than 2.5 mm was accurately predicted...
Journal Articles
Article Type: Research Papers
J Biomech Eng. February 2009, 131(2): 021010.
Published Online: December 10, 2008
... ventricle using a combination of a finite-volume computational fluid dynamics (CFD) approach and magnetic resonance imaging (MRI) experiments. An anatomically accurate 3D model of the entire SAS of a healthy volunteer was reconstructed from high resolution T2 weighted MRI data. Subject-specific pulsatile...
Journal Articles
Article Type: Research Papers
J Biomech Eng. April 2008, 130(2): 021013.
Published Online: March 31, 2008
... of nonlinear viscoelastic properties obtained by others at slower rates, either ex vivo or invasively. 08 11 2006 20 06 2007 31 03 2008 biological tissues biomechanics biomedical MRI brain deformation elastic waves shear modulus vibrations viscoelasticity elastography MRI...
Journal Articles
Article Type: Research Papers
J Biomech Eng. December 2007, 129(6): 855–862.
Published Online: April 30, 2007
... (1) to develop a magnetic resonance imaging (MRI)-based alignment method for use with apparatuses applying tibiofemoral joint compression, (2) to demonstrate the usefulness of the method by aligning cadaveric knees in an apparatus that could apply tibiofemoral joint compression, and (3) to quantify...