Three-dimensional interpretation and analysis of anatomic variation of the portal vein andhepatic vein based on 64-slice spiral CT data

TANG Min; YANG Shang-wen; MA Yi-ming; LUAN Wei; HE Jian; ZHU Bin

Journal of China Clinic Medical Imaging ›› 2013, Vol. 24 ›› Issue (5) : 338-340.

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Three-dimensional interpretation and analysis of anatomic variation of the portal vein andhepatic vein based on 64-slice spiral CT data

TANG Min, YANG Shang-wen, MA Yi-ming, LUAN Wei, HE Jian, ZHU Bin

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Abstract

Objective: To investigate 3D interpretation and analyse the data of anatomical variation of hepatic vessels using enhanced CT on 64-MSCT. Methods: 200 cases performed on 64-MSCT were examined. 3D display and marking of the hepatic vessels and branches were performed using IQQA-Liver software. The anatomic variation was evaluated. Results: The adopted method of vessel segmentation, marking and analysis was time-efficient, and resulted in individualized real-time interactive 3D vascular models representing true structures verified on original 2D DICOM images. Normal type of portal vein accounted for 71.5%(143/200), and the variants 28.5%(57/200). The left hepatic vein shared a common trunk with the middle one in 148 subjects(74%). Visualization rate of right inferior hepatic vein with diameter larger than 3 mm was 36.5%(73/200). The presence rate of a significant segment Ⅷ vein(>5 mm) draining to MHV was 30%(60/200). Conclusion: Variation of the hepatic vessels is not rare. The individualized 3D vascular models from CT data analysis in this study represented the anatomic variations of hepatic vessels well, and provided sufficient real-time interaction to various types of anatomical variations for surgery and interventional planning.

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Portal vein / Hepatic veins / Tomography / spiral computed

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TANG Min;YANG Shang-wen;MA Yi-ming;LUAN Wei;HE Jian;ZHU Bin. Three-dimensional interpretation and analysis of anatomic variation of the portal vein andhepatic vein based on 64-slice spiral CT data[J]. Journal of China Clinic Medical Imaging. 2013, 24(5): 338-340