Contrast-enhanced 3D MRA using SENSE

J Magn Reson Imaging. 2000 Nov;12(5):671-7. doi: 10.1002/1522-2586(200011)12:5<671::aid-jmri3>3.0.co;2-f.

Abstract

Sensitivity encoding (SENSE) was used to improve the performance of three-dimensional contrast-enhanced magnetic resonance angiography (3D CE-MRA). Utilizing an array of receiver coils for sensitivity encoding, the encoding efficiency of gradient-echo imaging was increased by factors of up to three. The feasibility of the approach was demonstrated for imaging of the abdominal vasculature. On the one hand, using a SENSE reduction factor of two, the spatial resolution of a breath-hold scan of 17 seconds was improved to 1.0 x 2.0 x 2.0 mm(3). On the other hand, using threefold reduction, time-resolved 3D CE-MRA was performed with a true temporal resolution of 4 seconds, at a spatial resolution of 1.6 x 2.1 x 4.0 mm(3). CE-MRA with SENSE was performed in healthy volunteers and patients and compared with a standard protocol. Throughout, diagnostic quality images were obtained, showing the ability of sensitivity encoding to enhance spatial and/or temporal resolution considerably in clinical angiographic examinations.

Publication types

  • Comparative Study
  • Evaluation Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged
  • Aorta, Abdominal / anatomy & histology
  • Aorta, Abdominal / pathology
  • Contrast Media*
  • Feasibility Studies
  • Female
  • Fourier Analysis
  • Humans
  • Image Enhancement*
  • Magnetic Resonance Angiography / methods*
  • Male
  • Phantoms, Imaging
  • Reference Values
  • Renal Artery / anatomy & histology
  • Renal Artery / pathology
  • Sensitivity and Specificity

Substances

  • Contrast Media