Method and device for triggering scanning

Abstract

The invention provides a method and a device for triggering scanning. The method comprises the following steps: monitoring a first breathing state of a tested target; monitoring a second breathing state of the tested target when the first breathing state is matched with a preset breathing training record; triggering the scanning for the tested target when the second breathing state is matched with a preset scanning breathing preparing record. In the manner of monitoring the first breathing state, the preset breathing training record can represent the result meeting the stable breathing state; the breathing is stable when the first breathing state is matched with the preset breathing training record; in the manner of monitoring the second breathing state, the preset scanning breathing preparing record can represent the result meeting the breathing state required by the scanning; when the second breathing state is matched with the preset scanning breathing preparing record, the breathing state required by the scanning meets the requirement and then the scanning is started again. The present breathing state of the tested target meeting the scanning requirement is accurately confirmed, the image acquired by scanning is free from artifacts and the radiation damage brought by the secondary scanning for the tested target is avoided.

Description

technical field [0001] The invention relates to the field of medical technology, in particular to a method and device for triggering scanning. Background technique [0002] Scanning and imaging using large medical imaging equipment is one of the commonly used medical diagnostic techniques. The medical imaging equipment emits rays to irradiate the object to be inspected, and receives the rays that pass through the object to be inspected, so as to obtain an image of the internal shape and structure of the object to be inspected. [0003] Take CT (Computed Tomography, ie electronic computerized tomography) equipment to scan the human body under examination as an example. The subject must prepare for breathing first, and then hold his breath after keeping a steady breath. After the subject holds his breath, the breathing preparation is over, and the CT scan is started, and the CT equipment sends X-rays to the subject. [0004] In the prior art, the method for judging the end ...

AI Technical Summary

Problems solved by technology

[0005] The above two methods cannot accurately determine that the subject has completed the breathing preparation for the scan. If the subject’s breathing is not stable or does not hold his breath when the scan is started, that is, the breathing state required for the scan does not meet the requirements, it will produce breathing motion

When performing CT scans of the lungs, abdomen, or heart, respiratory movement will cause artifacts in the scanned images, and even a second scan of the subject is required, which will bring additional radiation damage to the subject

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