Pulmonary vasculature: Single breath-hold MR imaging with phased-array coils

Thomas K F Foo, James R. MacFall, Cecil E. Hayes, H. Dirk Sostman, Beth E. Slayman

Research output: Contribution to journalArticle

Abstract

The authors obtained magnetic resonance images of the pulmonary vasculature with reduced artifacts caused by cardiac and respiratory notion by acquiring a series of moderately thin sections in a single breath-hold with an ultrafast gradient-echo pulse sequence. The series of two-dimensional images was postprocessed with a maximum-intensity projection algorithm. Time-of-flight inflow enhancement increased the signal intensity of arteries and veins while radiofrequency phase spoiling produced limited stationary spin suppression of the chest wall. Moderately thin (8-mm) section thicknesses were used to attain the resolution necessary to visualize smaller pulmonary vascular segments up to the chest wall while the number of acquired sections was minimized. Because the body coil did not provide an adequate signal-to-noise ratio (S/N) for a single excitation and thin-section acquisitions, phased-array coils covering either the right or left lung were used to improve the S/N. The use of single breath-holds prevented the misregistration and blurring that occurred in examinations performed with multiple breath-holds.

Original languageEnglish (US)
Pages (from-to)473-477
Number of pages5
JournalRadiology
Volume183
Issue number2
StatePublished - May 1992
Externally publishedYes

Keywords

  • Lung, MR, 60.1214
  • Magnetic resonance (MR), image processing
  • Magnetic resonance (MR), rapid imaging
  • Magnetic resonance (MR), reconstruction algorithms
  • Pulmonary arteries, MR, 60.92, 944.1214
  • Pulmonary veins, MR, 60.92,945.1214

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology

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  • Cite this

    Foo, T. K. F., MacFall, J. R., Hayes, C. E., Sostman, H. D., & Slayman, B. E. (1992). Pulmonary vasculature: Single breath-hold MR imaging with phased-array coils. Radiology, 183(2), 473-477.