Linear combination steady-state free precession MRI

Magn Reson Med. 2000 Jan;43(1):82-90. doi: 10.1002/(sici)1522-2594(200001)43:1<82::aid-mrm10>3.0.co;2-9.

Abstract

A new, fast, spectrally selective steady-state free precession (SSFP) imaging method is presented. Combining k-space data from SSFP sequences with certain phase schedules of radiofrequency excitation pulses permits manipulation of the spectral selectivity of the image. For example, lipid and water can be resolved. The contrast of each image depends on both T1 and T2, and the relative contribution of the two relaxation mechanisms to image contrast can be controlled by adjusting the flip angle. Several potential applications of the technique, referred to as linear combination steady-state free precession (LCSSFP), are demonstrated: fast musculoskeletal, abdominal, angiographic, and brain imaging.

Publication types

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

MeSH terms

  • Blood Vessels / anatomy & histology
  • Blood Vessels / metabolism
  • Body Water / chemistry*
  • Brain / anatomy & histology
  • Connective Tissue / anatomy & histology*
  • Connective Tissue / metabolism
  • Contrast Media
  • Fourier Analysis
  • Humans
  • Image Enhancement / methods*
  • Linear Models*
  • Lipids / chemistry*
  • Magnetic Resonance Angiography / methods
  • Magnetic Resonance Imaging / methods*
  • Musculoskeletal System / anatomy & histology*
  • Musculoskeletal System / metabolism
  • Phantoms, Imaging
  • Popliteal Artery / anatomy & histology
  • Sensitivity and Specificity

Substances

  • Contrast Media
  • Lipids