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FRODO pulse sequences: a new means of eliminating motion, flow, and wraparound artifacts.

Publication ,  Journal Article
Edelman, RR; Atkinson, DJ; Silver, MS; Loaiza, FL; Warren, WS
Published in: Radiology
January 1988

Magnetic resonance images of the spine, chest, abdomen, and pelvis are commonly degraded by ghost artifacts. The authors have developed a new technique named FRODO (Flow and Respiratory artifact Obliteration with Directed Orthogonal pulses) to suppress these artifacts. Signal from tissues responsible for the artifacts is eliminated by use of radio frequency pulses specifically optimized for high selectivity to saturate proton magnetization over one or more independently defined slabs (large rectangular volumes) of tissue. Ghost artifacts from pulsatile flow in the heart and blood vessels, as well as from respiratory motion and swallowing, are suppressed. Additional applications of this technique include elimination of intraluminal signal in blood vessels and suppression of wraparound artifact along the phase-encoding axis. Preliminary clinical experience suggests that the FRODO technique, in conjunction with other flow compensation methods, may provide a definitive solution to the problem of motion in spine imaging. FRODO pulse sequences may also prove useful for imaging of blood vessels, heart, abdomen, and other areas where motion, flow, or wraparound artifacts limit image quality.

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Published In

Radiology

DOI

EISSN

1527-1315

ISSN

0033-8419

Publication Date

January 1988

Volume

166

Issue

1 Pt 1

Start / End Page

231 / 236

Related Subject Headings

  • Spine
  • Nuclear Medicine & Medical Imaging
  • Magnetic Resonance Imaging
  • Humans
  • Abdomen
  • 3202 Clinical sciences
  • 11 Medical and Health Sciences
 

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Edelman, R. R., Atkinson, D. J., Silver, M. S., Loaiza, F. L., & Warren, W. S. (1988). FRODO pulse sequences: a new means of eliminating motion, flow, and wraparound artifacts. Radiology, 166(1 Pt 1), 231–236. https://doi.org/10.1148/radiology.166.1.3336685
Edelman, R. R., D. J. Atkinson, M. S. Silver, F. L. Loaiza, and W. S. Warren. “FRODO pulse sequences: a new means of eliminating motion, flow, and wraparound artifacts.Radiology 166, no. 1 Pt 1 (January 1988): 231–36. https://doi.org/10.1148/radiology.166.1.3336685.
Edelman RR, Atkinson DJ, Silver MS, Loaiza FL, Warren WS. FRODO pulse sequences: a new means of eliminating motion, flow, and wraparound artifacts. Radiology. 1988 Jan;166(1 Pt 1):231–6.
Edelman, R. R., et al. “FRODO pulse sequences: a new means of eliminating motion, flow, and wraparound artifacts.Radiology, vol. 166, no. 1 Pt 1, Jan. 1988, pp. 231–36. Epmc, doi:10.1148/radiology.166.1.3336685.
Edelman RR, Atkinson DJ, Silver MS, Loaiza FL, Warren WS. FRODO pulse sequences: a new means of eliminating motion, flow, and wraparound artifacts. Radiology. 1988 Jan;166(1 Pt 1):231–236.

Published In

Radiology

DOI

EISSN

1527-1315

ISSN

0033-8419

Publication Date

January 1988

Volume

166

Issue

1 Pt 1

Start / End Page

231 / 236

Related Subject Headings

  • Spine
  • Nuclear Medicine & Medical Imaging
  • Magnetic Resonance Imaging
  • Humans
  • Abdomen
  • 3202 Clinical sciences
  • 11 Medical and Health Sciences