Extension of Breast Cancer: Comparison of CT and MRI

A method and apparatus for reducing noise and enhancing the dynamic range of an image data set gather from an array (12) of transducers (T). The method includes the step of processing the image data set in a digital computer (17) by a noise reduction technique, such as deconvolving the noise component by means of a CLEAN or other algorithm. Thereafter the artifact image data introduced by the noise reduction technique is reduced by masking the processed image data set with the original image data set. This masking is done by multiplying each data value in the processed image data set by the corresponding data value in the original image data set. The method further includes scaling and normalizing the masked data and finally displaying the same on an image display device (42). Additionally, for imaging apparatus (10) not having a cross-correlator (16), phase aberration is reduced by performing a coordinate transformation step prior to noise reduction using a non-standard set of coordinate transformation algorithms.