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Digital Scanning Compared with Photoscanning in Liver Examination

Sloan-Kettering Institute for Cancer Research, New York, New York

ABSTRACT

Experience with quantitative scanning in 156 examinations of the liver indicates that this technique is a valuable procedure. It offers greater dynamic range than photoscanning and makes possible the quantification of liver-function observations. It permits comparisons of function at any point over the organ from time to time in the same patient and among patients with various diseases. The quantitative readout makes possible the testing of the statistical significance of differences in the counts recorded over any area of interest. Isocount contours obtained by computer analysis significantly aid in scan interpretation.

FOOTNOTES

^* Present address: Nuclear Medicine Service, The Univ. of Texas Medical Branch, Galveston, Texas.

Div. of Biophysics and Clinical Investigation.