Intracranial lesion enhancement with gadolinium: T1-weighted spin-echo versus three-dimensional Fourier transform gradient-echo MR imaging

Radiology. 1992 Nov;185(2):529-34. doi: 10.1148/radiology.185.2.1410367.

Abstract

The conspicuity of lesion enhancement with gadopentetate dimeglumine was evaluated subjectively and quantitatively through calculation of contrast-to-noise ratios (C/Ns) on T1-weighted three-dimensional (3D) Fourier transform (FT) gradient-echo (GRE) and two-dimensional (2D) FT spin-echo (SE) images of the brain in 406 consecutive patients. One hundred one enhancing intracranial lesions were present in 61 patients, including intra-(n = 76) and extraaxial (n = 25) processes of neoplastic (n = 68), infectious or inflammatory (n = 13), ischemic (n = 11), or vascular (n = 9) origin. Enhancement was apparent in all lesions on 2DFT SE and 3DFT GRE images, with similar subjective conspicuity in 86.8% (87 of 101) of lesions. Quantitative C/N measurements for 2DFT SE (mean, 17.6) and 3DFT GRE (mean, 17.2) imaging were not significantly different (P = .72). These findings, along with the other advantages of 3DFT GRE imaging, indicate that 3DFT GRE examinations are likely to play a major role in the performance of contrast-enhanced MR imaging of the brain.

Publication types

  • Comparative Study

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Brain Diseases / diagnosis*
  • Brain Diseases / pathology
  • Brain Ischemia / diagnosis
  • Brain Ischemia / pathology
  • Brain Neoplasms / diagnosis
  • Brain Neoplasms / pathology
  • Cerebrovascular Disorders / diagnosis
  • Cerebrovascular Disorders / pathology
  • Contrast Media*
  • Drug Combinations
  • Encephalitis / diagnosis
  • Encephalitis / pathology
  • Female
  • Fourier Analysis
  • Gadolinium DTPA
  • Gadolinium*
  • Humans
  • Image Enhancement / methods*
  • Image Processing, Computer-Assisted
  • Magnetic Resonance Imaging / methods*
  • Male
  • Meglumine
  • Middle Aged
  • Organometallic Compounds
  • Pentetic Acid

Substances

  • Contrast Media
  • Drug Combinations
  • Organometallic Compounds
  • Meglumine
  • Pentetic Acid
  • Gadolinium
  • Gadolinium DTPA