Two-second MR images: Comparison with spin-echo images in 29 patients

J. A. Utz, R. J. Herfkens, C. D. Johnson, A. Shimakawa, N. Pelc, G. Glover, C. E. Spritzer

Research output: Contribution to journalArticle

26 Scopus citations

Abstract

MR images can be obtained with a 2-sec scan time when an extremely short repetition rate (22 msec), limited flip angle (30°C), and gradient refocused echoes are used. Comparison of 415 such images obtained in 29 patients with routine T1-weighted (TR 500, TE 25) and T2-weighted (TR 2000, TE 80) images showed that images free of respiratory artifacts could be obtained in all patients. Although abdominal organs were well seen with 2-sec scan time, overall evaluation of these organs was better on routine T1-weighted images. Vascular structures, however, were seen as well or better on the 2-sec images in 60% of cases. The images were extremely sensitive to field nonhomogeneity, and metallic artifact was exaggerated in five patients with surgical clips. Two-sec MR images provide a rapid method of localizing abdominal organs for further evaluation. The sensitivity to blood flow may assist in the assessment of vascular patency.

Original languageEnglish (US)
Pages (from-to)629-633
Number of pages5
JournalAmerican Journal of Roentgenology
Volume148
Issue number3
DOIs
StatePublished - Jan 1 1987

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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    Utz, J. A., Herfkens, R. J., Johnson, C. D., Shimakawa, A., Pelc, N., Glover, G., & Spritzer, C. E. (1987). Two-second MR images: Comparison with spin-echo images in 29 patients. American Journal of Roentgenology, 148(3), 629-633. https://doi.org/10.2214/ajr.148.3.629