Magnetic resonance imaging of hemorrhage

S. J. Swensen, P. L. Keller, T. H. Berquist, R. A. McLeod, D. H. Stephens

Research output: Contribution to journalArticle

70 Citations (Scopus)

Abstract

The magnetic resonance imaging (MRI) characteristics of evolving hemorrhage are discussed and compared with those of computed tomography (CT). Studies of 15 hematomas were undertaken in four mongrel dogs. The hematomas were created by the injection of autologous blood into the subcutaneous tissues of the thigh. The hematomas were studied serially with both MRI and CT. Pulse sequences induced spin-echo (2100 msec TR, 40 and 80 msec TE) and inversion-recovery (2100 msec TR, 400 msec TI, 40 msec TE). Relaxation times (T1 and T2) were calculated in each case. CT values (H) were also obtained. In addition, 24 single and 14 serial scans of hemorrhage were obtained from 24 patients. MRI was performed on a 0.15-T resistive magnet scanner. T1 and T2 relaxation times and CT values decreased as the hematomas resolved. T1 and T2 relaxation times of intraparenchymal hemorrhage tended to remain elevated with time. MRI seems to be more sensitive than CT for the detection of hemorrhage, primarily because of superior contrast resolution.

Original languageEnglish (US)
Pages (from-to)921-927
Number of pages7
JournalAmerican Journal of Roentgenology
Volume145
Issue number5
StatePublished - 1985

Fingerprint

Hematoma
Tomography
Magnetic Resonance Imaging
Hemorrhage
Magnets
Subcutaneous Tissue
Thigh
Dogs
Injections

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology

Cite this

Swensen, S. J., Keller, P. L., Berquist, T. H., McLeod, R. A., & Stephens, D. H. (1985). Magnetic resonance imaging of hemorrhage. American Journal of Roentgenology, 145(5), 921-927.

Magnetic resonance imaging of hemorrhage. / Swensen, S. J.; Keller, P. L.; Berquist, T. H.; McLeod, R. A.; Stephens, D. H.

In: American Journal of Roentgenology, Vol. 145, No. 5, 1985, p. 921-927.

Research output: Contribution to journalArticle

Swensen, SJ, Keller, PL, Berquist, TH, McLeod, RA & Stephens, DH 1985, 'Magnetic resonance imaging of hemorrhage', American Journal of Roentgenology, vol. 145, no. 5, pp. 921-927.
Swensen SJ, Keller PL, Berquist TH, McLeod RA, Stephens DH. Magnetic resonance imaging of hemorrhage. American Journal of Roentgenology. 1985;145(5):921-927.
Swensen, S. J. ; Keller, P. L. ; Berquist, T. H. ; McLeod, R. A. ; Stephens, D. H. / Magnetic resonance imaging of hemorrhage. In: American Journal of Roentgenology. 1985 ; Vol. 145, No. 5. pp. 921-927.
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