Chun-Gao Zhou1,2, Jin Wook Chung3, Saebeom Hur1, Myungsu Lee1, Hyo-Cheol Kim1, Hwan Jun Jae1, Yong-Hu Yin1, Young Il Kim1, Sang-Bu Ahn4, Baik Hwan Cho5. 1. Department of Radiology, Seoul National University Hospital, 101 Daehak-ro, Jongro-gu, Seoul, 03080, Republic of Korea. 2. Department of Interventional Radiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China. 3. Department of Radiology, Seoul National University Hospital, 101 Daehak-ro, Jongro-gu, Seoul, 03080, Republic of Korea. chungjw@snu.ac.kr. 4. Department of Radiology, Dongnam Institution of Radiological & Medical Sciences, Busan, Republic of Korea. 5. Department of Radiology, Chonbuk National University Hospital, Jeonju, Republic of Korea.
Abstract
PURPOSE: To compare the accuracy of the conventional and portal vein tracing methods in the right hepatic lobe in multidetector computed tomography (MDCT). MATERIALS AND METHODS: This retrospective study included patients with hepatocellular carcinoma (HCC) lesions in the right hepatic lobe who underwent multiphasic MDCT and C-arm CT hepatic arteriography (C-arm CTHA) for chemoembolization. The accuracies of the conventional and portal vein tracing methods were evaluated using C-arm CTHA as the gold standard. RESULTS: A total of 147 patients with 205 HCC nodules were included. The C-arm CTHA could identify all the tumour-feeding arteries and consequently demonstrated that 120 lesions were located in the anterior section, 78 in the posterior section, and 7 in the border zone. The accuracy rates of conventional vs. portal vein tracing methods were 71.7 % vs. 98.3 % for the anterior section lesions, 67.9 % vs. 96.2 % for the posterior section, and 28.6 % vs. 57.1 % for the border zone. The portal vein tracing method was more accurate than the conventional method (P<0.001). CONCLUSIONS: The portal vein tracing method should be used for sectional localization of HCCs in the right lobe, because it predicts the location more accurately than the conventional method. KEY POINTS: • Portal tracing method is more accurate than conventional method for tumour localization. • The conventional method is especially inaccurate in right anteroinferior or posterosuperior quadrants. • Scissurae between right anterior and posterior section may not be vertical but tilted.
PURPOSE: To compare the accuracy of the conventional and portal vein tracing methods in the right hepatic lobe in multidetector computed tomography (MDCT). MATERIALS AND METHODS: This retrospective study included patients with hepatocellular carcinoma (HCC) lesions in the right hepatic lobe who underwent multiphasic MDCT and C-arm CT hepatic arteriography (C-arm CTHA) for chemoembolization. The accuracies of the conventional and portal vein tracing methods were evaluated using C-arm CTHA as the gold standard. RESULTS: A total of 147 patients with 205 HCC nodules were included. The C-arm CTHA could identify all the tumour-feeding arteries and consequently demonstrated that 120 lesions were located in the anterior section, 78 in the posterior section, and 7 in the border zone. The accuracy rates of conventional vs. portal vein tracing methods were 71.7 % vs. 98.3 % for the anterior section lesions, 67.9 % vs. 96.2 % for the posterior section, and 28.6 % vs. 57.1 % for the border zone. The portal vein tracing method was more accurate than the conventional method (P<0.001). CONCLUSIONS: The portal vein tracing method should be used for sectional localization of HCCs in the right lobe, because it predicts the location more accurately than the conventional method. KEY POINTS: • Portal tracing method is more accurate than conventional method for tumour localization. • The conventional method is especially inaccurate in right anteroinferior or posterosuperior quadrants. • Scissurae between right anterior and posterior section may not be vertical but tilted.
Authors: Michael J Wallace; Ravi Murthy; Paresh P Kamat; Teri Moore; Sujaya H Rao; Joe Ensor; Sanjay Gupta; Kamran Ahrar; David C Madoff; Stephen E McRae; Marshall E Hicks Journal: J Vasc Interv Radiol Date: 2007-12 Impact factor: 3.464
Authors: Sumeet Virmani; Robert K Ryu; Kent T Sato; Robert J Lewandowski; Laura Kulik; Mary F Mulcahy; Andrew C Larson; Riad Salem; Reed A Omary Journal: J Vasc Interv Radiol Date: 2007-10 Impact factor: 3.464