应用三维时间飞跃法磁共振血管成像(3D-TOF-MRA)技术观察长爪沙鼠脑动脉的方法初探
作者:
作者单位:

1.首都医科大学实验动物部;2.首都医科大学中心实验室

中图分类号:

R

基金项目:

国家重点研发计划


Preliminary Study on the Application of Three-Dimensional Time-of-Flight Magnetic Resonance Angiography (3D-TOF-MRA) to Observe the Cerebral Arteries in Mongolian Gerbils
Author:
Affiliation:

1.Department of Laboratory Animal,Capital Medical University;2.Core Facility Center,Capital Medical University

Fund Project:

National Key Research and Development Program of China

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    摘要:

    目的 建立三维时间飞跃法磁共振血管成像(3D-TOF-MRA)技术观察活体长爪沙鼠脑动脉的方法。方法 1.使用7.0T MRI扫描仪对长爪沙鼠脑动脉进行扫描,扫描数据通过RadiAnt DICOM Viewer软件进行后续处理;2.采用乳胶灌注法对影像学结果进行验证与比较;3.通过分析软件对长爪沙鼠及大鼠的后交通支及周围脑血管进行三维重建;4.使用此方法筛选血管发育异常的长爪沙鼠个体验证本方法的应用效果。结果 1. 3D-TOF-MRA技术可以有效的观察到活体长爪沙鼠脑动脉;2. 3D-TOF-MRA技术观察长爪沙鼠脑主要动脉血管的准确性较高,但对于较细血管分支的观察效果不如乳胶灌注法;3. 3D-TOF-MRA技术所得数据可以用于血管的三维重建;4. 3D-TOF-MRA技术应用于长爪沙鼠脑动脉结构异常个体的筛选具有较好效果。结论 3D-TOF-MRA技术可以应用于活体长爪沙鼠脑动脉的结构观察及相关研究。

    Abstract:

    Objective Establishment of a three dimensional time-of-flight magnetic resonance angiography (3D-TOF-MRA) technique for observing cerebral arteries in live Mongolian gerbils. Method 1. Employ a 7.0T MRI scanner to image the cerebral arteries of Mongolian gerbils, with data subsequently processed using the RadiAnt DICOM Viewer software;2. Validate and compare imaging results via the latex perfusion method;Attempt to perform 3D reconstruction of the posterior communicating branch and surrounding cerebral blood vessels of the Mongolian gerbil and rats through analysis software; 4. Attempt to use this method to screen individuals with abnormal vascular development in Mongolian gerbils to verify the effectiveness of this method. Result 1.The 3D-TOF-MRA technology can effectively observe the cerebral arteries of living Mongolian gerbils; 2.The 3D-TOF-MRA technology has high accuracy in observing the main cerebral arteries of Mongolian gerbils, but its observation effect on finer vascular branches is not as good as latex perfusion method; 3.The data obtained from 3D-TOF-MRA technology can be used for three-dimensional reconstruction of blood vessels; 4. The application of this technology has a good effect on screening for abnormal development of arterial structure in Mongolian gerbils. Conclusion The 3D-TOF-MRA technology can be applied to the structural observation and related research of the cerebral arteries in live Mongolian gerbils.

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  • 收稿日期:2024-06-18
  • 最后修改日期:2024-07-10
  • 录用日期:2024-10-30
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