Methods: MRT

Eur J Radiol. 2000 Mar;33(3):178-84. doi: 10.1016/s0720-048x(99)00141-2.

Abstract

MRI has become the imaging method of choice in special regions of the head and neck (e.g. nasopharynx, oropharynx, oral cavity, floor of the mouth). Superconducting MR-equipment with field strengths of 1.0-1.5 T are appropriate for the evaluation of the head and neck region. Signal acquisition is optimal with circular polarized head coils or with specially designed surface coils; the body coil is insufficient.When imaging tumors we need T1 contrast, T2 contrast and contrast medium information (enhancement information). For the T1 contrast T1-spin-echo is and remains the best sequence. For T2-contast T2 turbo-spin-echo with fat suppression has replaced the T2 spin-echo sequences because it is faster and shows good contrast between tumor and saturated fat tissue. Fat saturated T1 turbo-spin-echo enables best tissue contrast after Gd-DTPA application.

MeSH terms

  • Contrast Media
  • Edema / diagnosis
  • Gadolinium DTPA
  • Guidelines as Topic
  • Head and Neck Neoplasms / diagnosis*
  • Humans
  • Magnetic Resonance Imaging / instrumentation
  • Magnetic Resonance Imaging / methods*
  • Time Factors

Substances

  • Contrast Media
  • Gadolinium DTPA