MR imaging of cervical spine motion with HASTE. Academic Article uri icon

Overview

abstract

  • The HASTE (half-Fourier acquisition single-shot turbo spin-echo) technique delivers images with T2-weighting in about half a second and could be ideal for fast dynamic studies when T2-weighting is needed. We evaluated cardiac-triggered HASTE to study cervical spine flexion/extension. The cervical spines of ten asymptomatic volunteers were studied during flexion/extension motion on a 1.5 Tesla imager using a cardiac triggered version of the HASTE technique. Midline sagittal images were acquired every 2 to 3 s during neck flexion and extension. Image quality was compared to traditional T2-weighted Turbo spin-echo. The study duration per flexion/ extension was typically less than 20 seconds and well tolerated. The cardiac-gated T2-weighted HASTE images compared favorably to the traditional T2-weighted TSE images in quality and overall anatomic detail. Range of motion averaged: flexion 30 degrees (range 8 degrees -48 degrees) and extension 23 degrees (range 0 degrees -57 degrees ). Greatest motion occurred in the lower cervical spine (C4-C7). At the intervertebral discs the canal diameter, anterior and posterior CSF spaces were widest in neutral position and decreased with flexion and extension. Therefore, Cardiac-gated T2 HASTE sequences provide diagnostic and time-efficient dynamic MR images of cervical spine motion.

publication date

  • April 1, 1999

Research

keywords

  • Cervical Vertebrae
  • Echo-Planar Imaging
  • Head Movements
  • Image Processing, Computer-Assisted

Identity

Scopus Document Identifier

  • 0032927494

Digital Object Identifier (DOI)

  • 10.1016/s0730-725x(98)00176-3

PubMed ID

  • 10195580

Additional Document Info

volume

  • 17

issue

  • 3