1. Geometric Distortion Correction of Renal Diffusion Tensor Imaging Using the Reversed Gradient Method
- Author
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Jeremy C. Lim, Elif I Ekinci, Eric E. Sigmund, Ruth P Lim, Elissa Botterill, Jose R. Teruel, Shawna Farquharson, and Jas-Mine Seah
- Subjects
Adult ,Kidney ,behavioral disciplines and activities ,Geometric distortion ,030218 nuclear medicine & medical imaging ,Young Adult ,03 medical and health sciences ,0302 clinical medicine ,Nuclear magnetic resonance ,Image Interpretation, Computer-Assisted ,mental disorders ,Fractional anisotropy ,Medical imaging ,Humans ,Effective diffusion coefficient ,Medicine ,Diabetic Nephropathies ,Radiology, Nuclear Medicine and imaging ,Tensor ,Distortion correction ,business.industry ,Middle Aged ,Diffusion Tensor Imaging ,nervous system ,Feasibility Studies ,business ,Gradient method ,psychological phenomena and processes ,030217 neurology & neurosurgery ,Diffusion MRI - Abstract
Renal echo planar diffusion tensor imaging (DTI) has clinical potential but suffers from geometric distortion. We evaluated feasibility of reversed gradient distortion correction in 10 diabetic patients and 6 volunteers. Renal area, apparent diffusion coefficient, fractional anisotropy, and tensor eigenvalues were measured on uncorrected and distortion-corrected DTI. Corrected DTI correlated better than uncorrected DTI (r = 0.904 vs 0.840, P = 0.002) with reference anatomic T2-weighted imaging, with no significant difference in DTI metrics.
- Published
- 2021
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