Method and apparatus for adaptive exposure in x-ray systems

摘要

The present invention pertains to an apparatus and method for adaptive exposure in imaging systems. An x-ray source for producing x-ray radiation and an x-ray detector for measuring amount of x-ray radiation passing through the human patient and striking the detector can be used. A tomographic image of the human patient or a tomosynthetic image of the human patient can be generated. Region of interest filtering and equalization filtering can be utilized. Filtering can be accomplished with a mechanical shield or shutter or with electronic control of the x-ray source.

主权项

1. An x-ray imaging system for imaging a human patient comprising:
an x-ray source for producing x-ray radiation; an x-ray detector for measuring amount of said x-ray radiation passing through said human patient and striking said detector; a controller for selecting a region of interest in said human patient; and a filtering device coupled to said controller and said x-ray source configured to reduce said x-ray radiation to areas outside said region of interest in said patient, wherein said filtering device is an x-ray source controller for reducing amount of said x-ray radiation generated by said x-ray source.