| 李晖,刘怀军,梁莹,李靖武,张辉.后循环活体解剖学研究[J].中国医学影像技术,2010,26(s1):19~22 |
| 后循环活体解剖学研究 |
| Anatomical study of posterior circulation in vivo |
| 投稿时间：2010-06-28 修订日期：2010-07-31 |
| DOI： |
| 中文关键词: 后循环 磁共振血管造影术 解剖学 |
| 英文关键词:Posterior circulation Magnetic resonance angiography Anatomy |
| 基金项目:河北省科学攻关计划指导项目(072761212)。 |
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| 中文摘要: |
| 目的 应用3.0T磁共振血管成像(MRA)技术对后循环形态结构进行活体解剖学观察。 方法 对108名受试者接受MRA及常规MR检查,男58名,女50名,年龄4~63岁。观察指标:基底动脉形态;两侧大脑后动脉P1段及后交通动脉粗细;两侧小脑上动脉及小脑前下动脉发出的位置、数量、与基底动脉的角度及信号;源图像与MIP重组图像对小脑前下动脉的显示情况;两侧颅内段椎动脉的形态及信号特点。对结果进行统计学分析。 结果 基底动脉走行依次为弯曲、直行、斜行三种。大脑后动脉P1段大多数较粗,亦有未显影者。后交通动脉大部分未显影,其余有的较粗或稍细。绝大部分小脑上动脉均发自基底动脉,且信号强,数量可以为1条或2条。两侧小脑上动脉与基底动脉之间的角度差异无统计学意义(t=－1.19,P=0.23)。大约3/4的小脑前下动脉显影,信号较强者占多数,但是部分信号稍弱或较弱,数量为1条或2条。两侧小脑前下动脉与基底动脉之间的角度亦无差别(t=－1.13,P=0.26)。右椎动脉优势16例,左椎动脉优势33例,两侧椎动脉均势59例。 结论 MRA可以对后循环正常解剖及变异进行无创性在体观察,为解剖学、医学影像学及外科学的研究提供重要资料。 |
| 英文摘要: |
| Objective To observe the posterior circulation in vivo by 3.0T magnetic resonance angiography (MRA). Methods A total of 108 subjects experienced MRA and conventional MR examination. The sex ratio was 58 male to 50 female, and the age ranged from 4 to 63 years. Observing indexes included the appearance of the basilar artery; the thickness of bilateral posterior cerebral artery and posterior communicating artery; the location, number, degree and signal of bilateral superior cerebellar artery and anterior inferior cerebellar artery; the indication of anterior inferior cerebellar artery in source image and MIP recombinant image; the appearance and signal of the vertebral artery. Statistical testing was performed. Results The course of the basilar artery were bend, straight and diagonal in turn. Most of the P1 segments were thicker and some P1 segments were also undeveloping. Most of the posterior communicating artery were undeveloping, and others were thicker or slightly thin. The overwhelming majority superior cerebellar artery arised from basilar artery, and the signal were strong, the number was 1 or 2. There was no difference between the degree of the bilateral superior cerebellar artery and basilar artery (t=－1.19, P=0.23). About 3/4 of the anterior inferior cerebellar artery were developing. Some of the signals were strong, but some were weak, and the number was 1 or 2. There was no difference between the degree of the bilateral anterior inferior cerebellar artery and basilar artery (t=－1.13, P=0.26). The number of the right vertebral artery dominance, left vertebral artery dominance and equivalent-sized vertebral artery were 16, 33 and 59. Conclusion MRA can research the normal anatomy and variation of the posterior circulation non-invasive in vivo, providing important information for the study of anatomy, medical imaging and surgery. |
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