J Korean Radiol Soc.  2003 Feb;48(2):109-114. 10.3348/jkrs.2003.48.2.109.

Detection of Acute Intraventricular Hemorrhage: Comparison of FLAIR MR Imaging with Unenhanced CT

Affiliations
  • 1Department of Radiology, Dongguk University College of Medicine, Korea. pcom@dongguk.ac.kr

Abstract

PURPOSE
To compare the usefulness of fluid-attenuated inversion recovery (FLAIR) MR imaging with that of unenhanced CT in the detection of acute intraventricular hemorrhage (IVH).
MATERIALS AND METHODS
Thirty-four patients with acute IVH underwent FLAIR MR imaging and unenhanced CT within three days of the onset of symptoms. Except in one patient, all MR studies were performed after CT. The mean time intervals between CT and symptom onset and between CT and MR examinations were six and five hours, respectively. Two radiologists evaluated the detectability and conspicuity of acute IVH at FLAIR MR imaging and unenhanced CT. Positive imaging criteria in the detection of acute IVH were intraventricular hyperintensity at FLAIR MRI and hyperattenuation at CT.
RESULTS
Acute IVH was detected in all patients at FLAIR MR imaging and in 30 (88%) of 34 patients at unenhanced CT. In 32 patients (94%), the conspicuity of IVH at FLAIR MR imaging was as good as or better than that at unenhanced CT.
CONCLUSION
FLAIR MR imaging was superior to unenhanced CT in the detection of acute IVH.

Keyword

Brain, MR; Magnetic resonance (MR), intraventricular hemorrhage (IVH); Magnetic resonance (MR), pulse sequences
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