Single-shot fast spin-echo diffusion tensor imaging of the lumbar spine at 1.5 and 3 T - PubMed (original) (raw)

Single-shot fast spin-echo diffusion tensor imaging of the lumbar spine at 1.5 and 3 T

Julio Carballido-Gamio et al. Magn Reson Imaging. 2007 Jun.

Abstract

Diffusion tensor imaging (DTI) of the lumbar spine could improve diagnostic specificity. The purpose of this work was to determine the feasibility of and to validate DTI with single-shot fast spin-echo (SSFSE) for lumbar intervertebral discs at 1.5 and 3 T. Six normal volunteers were scanned with DTI-SSFSE using an eight- and a three-b-value protocol at 1.5 and 3 T, respectively. Apparent diffusion coefficient (ADC) values were computed and validated based on those obtained at 1.5 T from corresponding diffusion tensor scans using line scan diffusion imaging (LSDI), a technique that has been previously validated for use in the spine. Pearson correlation coefficients for LSDI and DTI-SSFSE ADC values were .88 and .89 for 1.5 and 3 T, respectively, with good quantitative agreement according to the Bland-Altman method. Results indicate that DTI-SSFSE is a candidate as a clinical sequence for obtaining diffusion tensor images of the lumbar intervertebral discs with scan times shorter than 4 min.

PubMed Disclaimer

Publication types

MeSH terms

LinkOut - more resources