X-ray diagnosis system for angiographic examination with device for the automatic tracking of a contrast medium
First Claim
1. A system of X-ray diagnosis for the angiographic examination of a patient, comprising a stand supporting an X-radiation source and a radiological image receiver cooperating with the source, a radiology table of the type including a panel mounted on a base, means to obtain relative shifts of the stand and of the panel, a device for the injection of a contrast medium into the patient'"'"'s circulatory system and a device for the acquisition of the images detected by the receiver so as to finally obtain a radiological image of a patient'"'"'s body, wherein said system further comprises means for detecting the progress of the contrast medium in the patient'"'"'s circulatory system and means responsive to said means for detecting for triggering, firstly, the relative shifting of the stand and of the panel in several positions and, secondly, the taking of the radiological image for these relative positions so that the radiological image obtained at each of these relative positions is recorded at an instant when the blood vessels of the zone, an image of which is recorded, show a significant concentration in contrast medium.
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Abstract
In a system of X-ray diagnosis for angiographic examinations, the passage of a contrast medium is detected by its physiological effects such as the rise in the temperature of the cutaneous tissues, by means of thermocouples positioned on the patient'"'"'s body. The signals from the thermocouples are processed in a device which gives forward motion signals for a panel supporting the patient and signals for triggering the shooting in such a way that the radiological image includes an image of the contrast medium.
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Citations
13 Claims
- 1. A system of X-ray diagnosis for the angiographic examination of a patient, comprising a stand supporting an X-radiation source and a radiological image receiver cooperating with the source, a radiology table of the type including a panel mounted on a base, means to obtain relative shifts of the stand and of the panel, a device for the injection of a contrast medium into the patient'"'"'s circulatory system and a device for the acquisition of the images detected by the receiver so as to finally obtain a radiological image of a patient'"'"'s body, wherein said system further comprises means for detecting the progress of the contrast medium in the patient'"'"'s circulatory system and means responsive to said means for detecting for triggering, firstly, the relative shifting of the stand and of the panel in several positions and, secondly, the taking of the radiological image for these relative positions so that the radiological image obtained at each of these relative positions is recorded at an instant when the blood vessels of the zone, an image of which is recorded, show a significant concentration in contrast medium.
Specification