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Zhiyue J. Wang
University of Texas Southwestern Medical Center
97Publications
32H-index
2,968Citations
Publications 97
Newest
#1Youngseob Seo (UTSW: University of Texas Southwestern Medical Center)H-Index: 4
#2Nancy K. Rollins (UTSW: University of Texas Southwestern Medical Center)H-Index: 31
Last.Zhiyue J. Wang (UTSW: University of Texas Southwestern Medical Center)H-Index: 32
view all 3 authors...
Accurate quantification of fractional anisotropy (FA) and mean diffusivity (MD) in MR diffusion tensor imaging (DTI) requires adequate signal-to-noise ratio (SNR) especially in low FA areas of the brain, which necessitates clinically impractical long image acquisition times. We explored a SNR enhancement strategy using region-of-interest (ROI)-based diffusion tensor for quantification. DTI scans from a healthy male were acquired 15 times and combined into sets with different number of signal ave...
#1Sarah Keller (UHH: University of Hamburg)H-Index: 3
#2Zhiyue J. WangH-Index: 32
Last.Jin Yamamura (UHH: University of Hamburg)H-Index: 13
view all 9 authors...
Purpose To compare the influence of two different regions of interest (ROIs) on diffusion tensor metrics in dystrophic thigh muscles using a custom-made (whole muscle) ROI including and a selective ROI excluding areas of fatty replacement.
#1Zhiyue J. WangH-Index: 32
#2Yong Jong ParkH-Index: 1
Last.Khyana Price (UTSW: University of Texas Southwestern Medical Center)
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Susceptibility artifacts caused by stainless steel orthodontic appliances (braces) pose significant challenges in clinical brain MRI examinations. We introduced field correction device (FCD) utilizing permanent magnets to cancel the induced B0 inhomogeneity and mitigate geometric distortions in MRI. We evaluated a prototype FCD using a 3D-printed head phantom in this proof of concept study. The phantom was compartmented into anterior frontal lobe, temporal lobe, fronto-parieto-occipital lobe, ba...
#1Gert-Jan van der Heijden (BCM: Baylor College of Medicine)H-Index: 2
#2Zhiyue J. Wang (UTSW: University of Texas Southwestern Medical Center)H-Index: 32
Last.Agneta L. Sunehag (BCM: Baylor College of Medicine)H-Index: 24
view all 6 authors...
Hispanic adolescent girls with normal BMI frequently have high body fat %. Without knowledge of body fat content and distribution, their risk for metabolic complications is unknown. We measured metabolic risk indicators and abdominal fat distribution in post-pubertal Hispanic adolescent girls with Normal BMI (N-BMI: BMI < 85th percentile) and compared these indicators between girls with Normal BMI and High Fat content (N-BMI-HF: body fat ≥ 27%; n = 15) and Normal BMI and Normal Fat content (N-BM...
#1Sarah Keller (UHH: University of Hamburg)H-Index: 3
#2Zhiyue J. Wang (UTSW: University of Texas Southwestern Medical Center)H-Index: 32
Last.Jin Yamamura (UHH: University of Hamburg)H-Index: 13
view all 7 authors...
BackgroundDiffusion tensor imaging (DTI) of peripheral nerves may provide additional information about nerve involvement in muscular disorders, but is considered difficult due to different optimal scan parameters tailored to magnetic resonance (MR) signal properties of muscle and neural tissues.PurposeTo assess the feasibility of sciatic nerve DTI using two different approaches of region of interest (ROI)-localization in DTI scans with b-values 500 s/mm2, in participants with muscular disorders ...
#1Sarah Keller (UHH: University of Hamburg)H-Index: 3
#2Avneesh ChhabraH-Index: 28
Last.Zhiyue J. WangH-Index: 32
view all 7 authors...
Abstract Objective Quantitative diffusion tensor imaging (DTI) of skeletal muscles is challenging due to the bias in DTI metrics, such as fractional anisotropy (FA) and mean diffusivity (MD), related to insufficient signal-to-noise ratio (SNR). This study compares the bias of DTI metrics in skeletal muscles via pixel-based and region-of-interest (ROI)-based analysis. Methods DTI of the thigh muscles was conducted on a 3.0-T system in N = 11 volunteers using a fat-suppressed single-shot spin-echo...
#1Youngseob Seo (UTSW: University of Texas Southwestern Medical Center)H-Index: 4
#2Zhiyue J. Wang (UTSW: University of Texas Southwestern Medical Center)H-Index: 32
Objective The purpose of this study was to measure specific absorption rate (SAR) during MRI scanning using a human torso phantom through quantification of diffusion coefficients independently of those reported by the scanner software for five 1.5 and 3 T clinical MRI systems from different vendors. Methods A quadrature body coil transmitted the RF power and a body array coil received the signals. With diffusion tensor imaging, SAR values for three MRI sequences were measured on the five scanner...
#1Bjoern P. Schoennagel (UHH: University of Hamburg)H-Index: 8
#2Roland Fischer (UHH: University of Hamburg)H-Index: 21
Last.Gerhard Adam (UHH: University of Hamburg)H-Index: 45
view all 10 authors...
Iron-induced cardiomyopathy with progressive heart failure is the leading cause of death in patients with iron overload disease, but is reversible in early stages [(1)][1]. Heart failure with preserved systolic function is frequently observed, however, diastolic dysfunction was reported to precede
#1Zhiyue J. WangH-Index: 32
#2Youngseob SeoH-Index: 4
Last.Nolan Altman (Boston Children's Hospital)H-Index: 23
view all 10 authors...
The purpose of this study was to explore the feasibility of assessing quality of diffusion tensor imaging (DTI) from multiple sites and vendors using American College of Radiology (ACR) phantom. Participating sites (Siemens (n = 2), GE (n= 2), and Philips (n = 4)) reached consensus on parameters for DTI and used the widely available ACR phantom. Tensor data were processed at one site. B0 and eddy current distortions were assessed using grid line displacement on phantom Slice 5; signal-to-noise r...
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