METHOD AND APPARATUS FOR CONTROLLING X-RAY EXPOSURE

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. A method for producing an x-ray image of a human patient comprising:
producing a beam of x-ray radiation from an x-ray source; selecting a region of interest in said human patient; controlling said beam to reduce said x-ray radiation to areas outside said region of interest in said patient; and measuring amount of said x-ray radiation passing through said human patient and striking a detector.