| 摘要 |
An improvement in an x-ray apparatus used to obtain diagnostic x-ray images is described. The improvement includes a monitoring means, 10, for monitoring a physiological process such as cardiac or respiratory cycles. A signal generating means, 12, is used to generate signals in response to the monitored physiological process. Signals from the signal generating means are coupled to a control means, 14, which in turn controls the generation of x-rays within the x-ray apparatus. In this manner x-ray images are only acquired for pre-determined events in the physiological process. Fewer images are acquired thus reducing the patient's exposure to x-rays and reducing the processing and storage requirements. <IMAGE> |
