1University of Minnesota Hospitals, Department of Radiology, Box 292, Mayo, Minneapolis, Minnesota 55455
Tóm tắt
A method has been devised which enables the modulation transfer function (MTF) of computerized tomographic (CT) scanners to be simply and rapidly determined. The method relies upon the measurement of the standard deviation of the pixel values within the image of cyclic bar patterns. The method is shown to produce results which are indistinguishable from those derived by less practical conventional methods.
