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目的通过CT血管成像技术对腰动脉的影像解剖进行观测并探讨其临床意义。方法 2012年3月至2012年6月,第三军医大学西南医院放射科行CT腹部血管成像检查的55例,使腹主动脉及腰动脉清晰显示。观测腰动脉起点平面及缺失,腰动脉发出处与腹主动脉形成的上夹角及其内径,腰动脉发出处相邻腰动脉间的距离及腰动脉共干现象。结果大多数腰动脉发自相应的腹主动脉对应椎体平面。共9例(16.4%)腰动脉缺失。内径自上而下逐渐增大,两侧比较差异无统计学意义(P<0.05)。第1、2、3腰动脉发出处和腹主动脉所形成的上夹角为锐角,第4腰动脉为钝角。相邻腰动脉间的距离自上而下逐渐变小。共3例(5.5%)腰动脉发出处有共干现象。结论腰动脉局部解剖变异较大。行腰动脉介入治疗前要了解腰动脉的局部解剖特点,警惕脊髓血供。
Objective To observe the imaging anatomy of lumbar artery by CT angiography and explore its clinical significance. Methods From March 2012 to June 2012, 55 cases of CT abdominal angiography in Radiology Department of Southwest Hospital of the Third Military Medical University made the abdominal aorta and lumbar arteries clearly show. Observe the plane of the beginning and the disappearance of the lumbar artery, the angle formed by the lumbar artery and the abdominal aorta, the inner diameter of the lumbar artery, the distance between the lumbar arteries and the lumbar artery. Results Most of the lumbar arteries originated from the corresponding abdominal aorta corresponding to the vertebral plane. A total of 9 cases (16.4%) of the lumbar artery was missing. The diameter increased gradually from the top to the bottom, but there was no significant difference between the two sides (P <0.05). 1, 2, 3 lumbar artery and abdominal aorta formed by the angle between the acute angle, the fourth lumbar artery obtuse angle. The distance between adjacent lumbar arteries becomes smaller from top to bottom. A total of 3 cases (5.5%) of the lumbar artery issued a total of dry phenomenon. Conclusion Local lumbar artery anatomy variation. Before lumbar artery interventional therapy to understand the local anatomy of the lumbar artery, watchful for spinal cord blood supply.