One-stop blood vessel cavity and blood vessel wall imaging method

By using a dual-modal blood pool contrast agent for T1 and T2 weighted imaging and fusing the two images, the problems of incompatibility, long time and inconsistent diagnosis in the prior art were solved, and efficient and accurate vascular lumen and blood vessel wall imaging were achieved.

CN119908700APending Publication Date: 2025-05-02NANJING DRUM TOWER HOSPITAL
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Patent Information

Application Number
CN202510071686.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-16
Publication Date
2025-05-02

AI Technical Summary

Technical Problem

The existing MRI technology is difficult to compatible with imaging of different sequences in one examination, resulting in long scanning time, large registration errors, insufficient diagnostic consistency, and the inability to image the vascular lumen and vascular walls simultaneously in complex lesions.

Method used

Using a dual-modal blood pool contrast agent that can simultaneously shorten the T1 relaxation time and T2 relaxation time, T1-weighted water-lipid in-phase single-sequence imaging was performed first, and then black blood imaging was performed based on T2 weighting, and the two images were obtained for mutual verification and fusion.

Benefits of technology

It shortens imaging time, improves image interpretability and diagnostic accuracy, and can simultaneously image the blood vessel lumen and blood vessel walls in complex lesions, reducing false positive test results.

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Abstract

The invention discloses a one-stop blood vessel cavity and blood vessel wall imaging method, which comprises the following steps: S1, injecting a bimodal blood pool contrast agent for shortening the relaxation time T1 and the relaxation time T2 of blood, collecting MR signals when water and fat are in the same phase in T1 weighting, and carrying out single-sequence one-stop imaging to obtain a first image; and S2, collecting T2 weighted MR signals, and obtaining a second image of black blood imaging. According to the invention, the bimodal blood pool contrast agent capable of shortening the T1 relaxation time and the T2 relaxation time at the same time is used, so that imaging with different weights can be conveniently carried out; water-fat in-phase imaging based on T1 weighting is preferentially carried out, the speed is high, and the efficiency is high; in addition, black blood imaging is carried out based on T2 weighting, a new contrast ratio is provided, interpretability is enhanced, and therefore the judgment accuracy is improved.
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