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Magn Reson Med. 1995 Mar;33(3):396-400.

Effect of radio frequency inhomogeneity correction on the reproducibility of intra-cranial volumes using MR image data.

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Department of Radiology, University of Texas Medical School at Houston 77030, USA.


The volumes of total brain, white matter, gray matter, and cerebrospinal fluid in normal volunteers were determined using a supervised nonparametric feature map segmentation of dual-contrast MR images after correcting for the radio frequency (RF) inhomogeneity. Reproducibility of the segmentation was evaluated in terms of inter-observer and scan-to-scan variations. A comparison with the published results indicates that the scan-to-scan and inter-observer variabilities in the determination of tissue volumes are substantially reduced following the RF inhomogeneity correction.

[Indexed for MEDLINE]

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