Magnetic resonance vessel wall imaging method and apparatus

Abstract

The invention relates to a magnetic resonance vessel wall imaging method and an apparatus. The method comprising: applying a set of radio frequency pulse sequences to an imaging area, wherein the setof radio frequency pulse sequences includes, in chronological order, a composite double-band delay alternation and a custom excitation nutation A DANTE pulse group, a variable flip angle chain of a three-dimensional fast spin echo SPACE, and a flip down radio frequency pulse chain (S110); acquiring a magnetic resonance signal generated by the imaging area and reconstructing a magnetic resonance signal to obtain the imaging area Magnetic resonance image of blood vessel wall (S120). By further inverting the cerebrospinal fluid signal of the whole brain by increasing the downward flip of the radio frequency pulse chain after the variable flip angle chain of the three-dimensional fast spin echo SPACE, the use of the DANTE pulse group can help the vascular wall at the head-neck joint Imaging.

Description

technical field [0001] The invention relates to the technical field of magnetic resonance imaging, in particular to a magnetic resonance blood vessel wall imaging method and device. Background technique [0002] Stroke has become the disease with the highest mortality and disability rate in China. Among China's 1.4 billion population, 16 million people die from stroke every year, and the mortality rate is 1.142%. The medical expenditure of stroke is huge, which brings a heavy burden to China. In 2004, the average cost of hospitalization for stroke patients in China was 6,356 yuan, twice the annual income of rural residents. At present, China spends 40 billion yuan on the treatment of stroke patients every year, which is 10 times the sum of the treatment costs of other cardiovascular diseases. In view of this, early assessment, early diagnosis, and early prevention of stroke are particularly important. [0003] Studies have shown that stroke is mainly caused by the ruptur...

AI Technical Summary

Problems solved by technology

Therefore, for CSF in different regions of the brain, DANTE suppresses the signal differently, resulting in uneven CSF signal

[0008] The inhomogeneity of the CSF signal will greatly affect the accurate resolution of the vessel wall

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