Comparison with Magnetic Resonance Three-Dimensional Sequence for Lumbar Nerve Root with Intervertebral Foramen

Asian Spine Journal

Toshikazu Kubo¹  Masateru Nagae¹  Hiroyoshi Fujiwara¹  Mitsunori Yoshimoto²  Yoshinori Terashima²  Tsuneo Takebayashi²  Toshihiko Yamashita²  Hiroki Shishido³  Rui Imamura³  Yoshihiro Akatsuka³  Hiroyuki Takashima³ 

[1] Department of Orthopedic Surgery, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan.;Department of Orthopedic Surgery, Sapporo Medical University School of Medicine, Sapporo, Japan.;Division of Radiology and Nuclear Medicine, Sapporo Medical University Hospital, Sapporo, Japan.;

关键词: Lumbar nerve root;    Intervertebral foramen;    Magnetic resonance imaging;    Three-dimensional;    Coherent oscillatory state acquisition for the manipulation of image contrast;    Fast imaging employing steady state acquisition;   

DOI  :  10.4184/asj.2016.10.1.59

来源: DOAJ

【 摘 要 】

Study DesignProspective study based on magnetic resonance (MR) imaging of the lumbar spinal root of the intervertebral foramen.PurposeThis study was to compare MR three-dimensional (3D) sequences for the evaluation of the lumbar spinal root of the intervertebral foramen.Overview of LiteratureThe diagnosis of spinal disorders by MR imaging is commonly performed using two-dimensional T1- and T2-weighted images, whereas 3D MR images can be used for acquiring further detailed data using thin slices with multi-planar reconstruction.MethodsOn twenty healthy volunteers, we investigated the contrast-to-noise ratio (CNR) of the lumbar spinal root of the intervertebral foramen with a 3D balanced sequence. The sequences used were the fast imaging employing steady state acquisition and the coherent oscillatory state acquisition for the manipulation of image contrast (COSMIC). COSMIC can be used with or without fat suppression (FS). We compared these sequence to determine the optimized visualization sequence for the lumbar spinal root of the intervertebral foramen.ResultsFor the CNR between the nerve root and the peripheral tissue, these were no significant differences between the sequences at the entry of foramen. There was a significant difference and the highest CNR was seen with COSMIC-FS for the intra- and extra-foramen.ConclusionsIn this study, the findings suggest that the COSMIC-FS sequences should be used for the internal or external foramen for spinal root disorders.

【 授权许可】

Unknown