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CT pixel mapping in the diagnosis of small angiomyolipomas of the kidneys
K Takahashi1, M Honda, R S Okubo
1Department of Radiology, Jichi Medical School and Hospital, Tochigi-ken, Japan.
Journal of Computer Assisted Tomography
|January 1, 1993
Abstract:
In six small renal angiomyolipomas (7-17 mm) the superiority of displaying the CT numbers of pixels within a lesion (pixel mapping) over the usual region of interest (ROI) measurement is described in the detection of small amounts of fat tissue. On precontrast 5 mm CT the ROI measurements were > 0 in four cases whereas pixel maps revealed pixels with values < 0 in six cases.