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目的:探讨64层螺旋CT应用于正常人活体体肝静脉研究的可行性,观察三维重建肝静脉的一般形态及走行规律。方法:153例正常受试者经肘正中静脉注射造影剂后,使用64层螺旋CT进行上腹部扫描,图像采集后经容积再现(volume rendering,VR)技术重建肝静脉。结果:重建图像清晰,可显示出6～8级血管及与周围组织间的关系。其中153例肝静脉的分型结果如下:①3分支型,占35.3%(54例);②中左共干型,占41.8%(64例);③中左合干型,占20.9%(32例);④中右共干型,占2.0%(3例)。结论:64层螺旋CT可以作为研究活体肝静脉形态的有效手段,三维重建能更准确、全方位地显示肝静脉的正常解剖类型和发现变异,而且图像清晰,对于活体肝静脉的研究有较好的临床应用价值。
Objective: To investigate the feasibility of using 64-slice spiral CT in the study of hepatic veins in normal living and to observe the general morphology and movement of hepatic veins in three-dimensional reconstruction. Methods: 153 normal subjects were injected into the median cubital vein with contrast medium and scanned with 64 - slice spiral CT for the upper abdomen. The images were collected and the hepatic veins reconstructed by volume rendering (VR) technique. Results: The reconstructed image is clear and can show the relationship between the 6 ~ 8 vessels and the surrounding tissues. The results of 153 cases of hepatic veins were as follows: ①3 branch type, accounting for 35.3% (54 cases); ② middle and left co-stem type, accounting for 41.8% (64 cases); ③ middle and left co-stem type, accounting for 20.9% Cases); ④ middle and right total dry type, accounting for 2.0% (3 cases). Conclusion: 64-slice spiral CT can be used as an effective method to study the morphology of living hepatic veins. Three-dimensional reconstruction can display the normal anatomical types and findings of hepatic veins more accurately and comprehensively, and the images are clear. The study on living hepatic veins is better The clinical value.