Naoko Kinoshita1, Shigeko Tanaka2, Yuko Sugimori2, Koichi Nakahira3, Koji Ryoke4, Toshiyuki Matsuoka5, Masayuki Fujioka6, Yukio Miki5. 1. Department of Radiology, Wakakusa Daiichi Hospital, 1-6, Wakakusa-cho, Higashiosaka city, Osaka, 579-8056, Japan. naokolikecurry@gmail.com. 2. Department of Radiology, Wakakusa Daiichi Hospital, 1-6, Wakakusa-cho, Higashiosaka city, Osaka, 579-8056, Japan. 3. Sakaguchi Clinic, Osaka, Japan. 4. Department of Orthopedics, Wakakusa Daiichi Hospital, Osaka, Japan. 5. Department of Diagnostic and Interventional Radiology, Osaka City University Graduate School of Medicine, Osaka, Japan. 6. Department of Neurosurgery, Minoh City Hospital, Osaka, Japan.
Abstract
PURPOSE: We performed lumbar spinal magnetic resonance imaging of three-dimensional (3D) dual echo volumetric isotropic turbo spin echo acquisition (DE-VISTA) and constructed DE-VISTA additional fusion images (DE-VISTA-AFI), which is the addition of DE-VISTA proton density-weighted images (DE-VISTA-PDWI) to DE-VISTA T2-weighted images (DE-VISTA-T2WI). The aim of this study was to clarify whether DE-VISTA-AFI was able to clearly delineate spinal nerve roots. METHODS: A total of 677 patients underwent lumbar MR imaging, and the signal ratio (SR) between cerebrospinal fluid and nerve roots inside the dural sac and the SR between fat and nerve roots outside the dural sac were estimated using DE-VISTA-AFI, DE-VISTA-PDWI, DE-VISTA-T2WI, and 2D-T2WI. RESULTS: The SR between cerebrospinal fluid and nerve roots inside the dural sac on DE-VISTA-AFI was higher than that on DE-VISTA-PDWI (p < 0.0001) and on 2D T2WI (p < 0.0001). The SR between the fat tissue and nerve roots outside the dural sac on DE-VISTA-AFI was higher than that on DE-VISTA-PDWI (p < 0.0001) and 2D T2WI (p < 0.0001). CONCLUSION: DE-VISTA-AFI could clearly delineate the entire length of the lumbar nerve roots that run from the cauda equina in the spinal fluid through to the fat in the lateral recess, intervertebral foramen, and outside the intervertebral foramen.
PURPOSE: We performed lumbar spinal magnetic resonance imaging of three-dimensional (3D) dual echo volumetric isotropic turbo spin echo acquisition (DE-VISTA) and constructed DE-VISTA additional fusion images (DE-VISTA-AFI), which is the addition of DE-VISTA proton density-weighted images (DE-VISTA-PDWI) to DE-VISTA T2-weighted images (DE-VISTA-T2WI). The aim of this study was to clarify whether DE-VISTA-AFI was able to clearly delineate spinal nerve roots. METHODS: A total of 677 patients underwent lumbar MR imaging, and the signal ratio (SR) between cerebrospinal fluid and nerve roots inside the dural sac and the SR between fat and nerve roots outside the dural sac were estimated using DE-VISTA-AFI, DE-VISTA-PDWI, DE-VISTA-T2WI, and 2D-T2WI. RESULTS: The SR between cerebrospinal fluid and nerve roots inside the dural sac on DE-VISTA-AFI was higher than that on DE-VISTA-PDWI (p < 0.0001) and on 2D T2WI (p < 0.0001). The SR between the fat tissue and nerve roots outside the dural sac on DE-VISTA-AFI was higher than that on DE-VISTA-PDWI (p < 0.0001) and 2D T2WI (p < 0.0001). CONCLUSION: DE-VISTA-AFI could clearly delineate the entire length of the lumbar nerve roots that run from the cauda equina in the spinal fluid through to the fat in the lateral recess, intervertebral foramen, and outside the intervertebral foramen.
Entities:
Keywords:
3D fast spin echo; Dual echo; Lumbar nerve root; MRI; VISTA
Authors: Daniel J Blizzard; Andrew H Haims; Andrew W Lischuk; Rattalerk Arunakul; Joshua W Hustedt; Jonathan N Grauer Journal: J Spinal Disord Tech Date: 2015-05
Authors: H-M Yoo; S J Kim; C G Choi; D H Lee; J H Lee; D C Suh; J W Choi; K S Jeong; S J Chung; J S Kim; S-C Yun Journal: AJNR Am J Neuroradiol Date: 2008-01-17 Impact factor: 3.825