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Clinical multi-push acoustic radiation force for evaluation of renal transplant status
Mallory R. Scola;Leslie M. Baggesen;Chih-Da Wu;Randy K. Detwiler;Wui K. Chong;So Yoon Jang;Lauren M. B. Burke;Kristel L. Jernigan;Melissa C. Caughey;Melrose W. Fisher;Hongtu Zhu;Sonya B. Whitehead;Caterina M. Gallippi
Invasive biopsy is currently the gold standard for assessment of renal transplant health. The need for biopsy may be reduced as suitable, noninvasive imaging methods become available. An imaging technique that exploits the viscoelastic properties of renal tissue could be relevant as a biopsy alternative, given that normal renal pelvis and parenchyma have different viscoelastic properties, while re...Show More
Clinical multi-push acoustic radiation force for evaluation of renal transplant status
Mallory R. Scola;Leslie M. Baggesen;Chih-Da Wu;Randy K. Detwiler;Wui K. Chong;So Yoon Jang;Lauren M. B. Burke;Kristel L. Jernigan;Melissa C. Caughey;Melrose W. Fisher;Hongtu Zhu;Sonya B. Whitehead;Caterina M. Gallippi
Year: 2011 | Conference Paper |
In vivo hemostasis detection at human femoral arteriotomy by ARFI ultrasound
Russell H. Behler;Mallory R. Scola;Timothy Nichols;Melissa Caughey;Hongtu Zhu;Caterina M. Gallippi
2009 IEEE International Ultrasonics Symposium
Year: 2009 | Conference Paper |
Noninvasively monitoring hemostasis at femoral artery puncture sites (arteriotomies) could reduce complications associated with percutaneous coronary artery catheterization and reduce medical cost, yet no diagnostic imaging method is proven for this application. In a pilot clinical investigation, ARFI imaging was performed at the femoral arteriotomies of 20 patient volunteers randomized to treatme...Show More
Regularization of diffusion tensor field using coupled robust anisotropic diffusion filters
Songyuan Tang;Yong Fan;Hongtu Zhu;Pew-Thian Yap;Wei Gao;Weili Lin;Dinggang Shen
2009 IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops
Year: 2009 | Conference Paper |
This paper presents a method to simultaneously regularize diffusion weighted images and their estimated diffusion tensors, with the goal of suppressing noise and restoring tensor information. We enforce a data fidelity constraint, using coupled robust anisotropic diffusion filters, to ensure consistency of the restored diffusion tensors with the regularized diffusion weighted images. The filters a...Show More
Voxel-wise group analysis of DTI
Zhexing Liu;Hongtu Zhu;Bonita L. Marks;Laurence M. Katz;Casey B. Goodlett;Guido Gerig;Martin Styner
2009 IEEE International Symposium on Biomedical Imaging: From Nano to Macro
Year: 2009 | Conference Paper |
Cited by: Papers (3)
Diffusion tensor MRI (DTI) is now a widely used modality to investigate the fiber tissues in vivo, especially the white matter in brain. An automatic pipeline is described in this paper to conduct a localized voxel-wise multiple-subject group comparison study of DTI. The pipeline consists of 3 steps: (1) Preprocessing, including image format converting, image quality check, eddy-current and motion...Show More
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