Method and device for tracking and scanning with contrast agent
A contrast agent and contrast agent concentration technology, applied in the field of medical imaging, can solve the problems of poor accuracy of blood vessel tracking scan, failure of blood vessel tracking scan, ROI area cannot completely contain blood vessels, etc., to achieve accurate tracking effect
Active Publication Date: 2021-07-30
NEUSOFT MEDICAL SYST CO LTD
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However, if the position of the blood vessel changes during the scanning process, there may be a phenomenon that the monitored ROI area cannot completely contain the blood vessel, which makes the tracking scan accuracy of the blood vessel poor, resulting in the failure of the blood vessel tracking scan
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[0030] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.
[0031] In vascular imaging, contrast agent tracking scanning technology can be used to enhance the image observation effect of blood vessels. The example of the present disclosure provides a contrast agent tracking scan method, so as to make the tracking of the blood vessel to be monitored more accurate. figure 1 An example contrast agent tracking scan method is provided, including: ...
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The present disclosure provides a method and device for a contrast agent tracking scan, wherein the method includes: in a tracking layer image of a contrast agent tracking scan, identifying an internal blood vessel area inside a predetermined monitoring area in the tracking layer image; according to the The inner blood vessel area, obtaining the outer blood vessel area outside the monitoring area, the coincident area between the outer blood vessel area and the inner blood vessel area is continuous; the whole of the inner blood vessel area and the outer blood vessel area is determined as the target blood vessel area; monitor the contrast agent concentration value of the target blood vessel area, and if the contrast agent concentration value reaches the target concentration value, start a routine scan; if the contrast agent concentration value does not reach the target concentration value, perform the next scan The contrast agent tracking scan is performed to redefine the target vessel region. The present disclosure enables more precise angiographic contrast agent tracking.
Description
technical field [0001] The present disclosure relates to medical imaging technology, in particular to a method and device for contrast agent tracking scanning. Background technique [0002] Contrast agent tracking scanning (Bolus Tracking) is a technique used in computed tomography to show blood vessels more clearly. Among them, contrast agent (also known as contrast agent, contrast media) is one of the most commonly used drugs in interventional radiology operations. It is a chemical product that is injected (or taken) into human tissues or organs to enhance the effect of image observation. It is mainly used clinically for vascular imaging and diagnosis of various diseases. [0003] In the current CT (Computer Tomography, X-ray computed tomography) system, taking the use of contrast agent tracking scanning technology in vascular imaging as an example, the contrast agent is generally injected into the patient's body and an ROI (region of interest) is drawn. The ROI area may...
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IPC IPC(8): A61B6/03
CPCA61B6/032A61B6/481A61B6/504A61B6/52
Inventor 闫刚
Owner NEUSOFT MEDICAL SYST CO LTD