Kenichiro Araki1, Norifumi Harimoto2, Takahiro Yamanaka1, Norihiro Ishii1, Mariko Tsukagoshi1, Takamichi Igarashi1, Akira Watanabe1, Norio Kubo1, Yoshito Tsushima3, Ken Shirabe1. 1. Division of Hepatobiliary and Pancreatic Surgery, Department of General Surgical Science, Gunma University Graduate School of Medicine, 3-39-22 Showa-machi, Maebashi, Gunma, 371-8511, Japan. 2. Division of Hepatobiliary and Pancreatic Surgery, Department of General Surgical Science, Gunma University Graduate School of Medicine, 3-39-22 Showa-machi, Maebashi, Gunma, 371-8511, Japan. nharimotoh1@gmail.com. 3. Department of Diagnostic Radiology and Nuclear Medicine, Gunma University Graduate School of Medicine, Gunma, Japan.
Abstract
PURPOSE: We investigated whether functional future remnant liver volume (fFRLV), assessed using gadolinium-ethoxybenzyl-diethylenetriamine pentaacetic acid-enhanced magnetic resonance imaging (EOB-MRI), could evaluate regional liver function in hepatocellular carcinoma (HCC) patients with portal vein tumor thrombus (PVTT) and help establish the indication for hepatectomy. METHODS: The subjects of this study were 12 patients with PVTT [PVTT(+) group] and 58 patients without PVTT [PVTT(-) group], from among 191 patients who underwent hepatectomy of more than one segment for HCC. We calculated the liver-to-muscle ratio (LMR) in the remnant liver, using EOB-MRI and fFRLV. Preoperative factors and surgical outcome were compared between the groups. The LMR of the area occluded by PVTT was compared with that of the non-occluded area. RESULTS: The indocyanine green retention rate at 15 min (ICG-R15) and liver fibrosis indices were increased in the PVTT(+) group, but the surgical outcomes of patients in this group were acceptable, with no liver failure, no mortality, and no differences from those in the PVTT(-) group. The fFRLV in the PVTT(+) group was not significantly different from that in the PVTT(-) group (p = 0.663). The LMR was significantly lower in the occluded area than in the non-occluded area (p = 0.004), indicating decreased liver function. CONCLUSION: Assessing fFRLV using EOB-MRI could be useful for evaluating regional liver function and establishing operative indications for HCC with PVTT.
PURPOSE: We investigated whether functional future remnant liver volume (fFRLV), assessed using gadolinium-ethoxybenzyl-diethylenetriamine pentaacetic acid-enhanced magnetic resonance imaging (EOB-MRI), could evaluate regional liver function in hepatocellular carcinoma (HCC) patients with portal vein tumor thrombus (PVTT) and help establish the indication for hepatectomy. METHODS: The subjects of this study were 12 patients with PVTT [PVTT(+) group] and 58 patients without PVTT [PVTT(-) group], from among 191 patients who underwent hepatectomy of more than one segment for HCC. We calculated the liver-to-muscle ratio (LMR) in the remnant liver, using EOB-MRI and fFRLV. Preoperative factors and surgical outcome were compared between the groups. The LMR of the area occluded by PVTT was compared with that of the non-occluded area. RESULTS: The indocyanine green retention rate at 15 min (ICG-R15) and liver fibrosis indices were increased in the PVTT(+) group, but the surgical outcomes of patients in this group were acceptable, with no liver failure, no mortality, and no differences from those in the PVTT(-) group. The fFRLV in the PVTT(+) group was not significantly different from that in the PVTT(-) group (p = 0.663). The LMR was significantly lower in the occluded area than in the non-occluded area (p = 0.004), indicating decreased liver function. CONCLUSION: Assessing fFRLV using EOB-MRI could be useful for evaluating regional liver function and establishing operative indications for HCC with PVTT.
Authors: Osman Öcal; Bora Peynircioglu; Christian Loewe; Otto van Delden; Vincent Vandecaveye; Bernhard Gebauer; Christoph J Zech; Christian Sengel; Irene Bargellini; Roberto Iezzi; Alberto Benito; Kerstin Schütte; Antonio Gasbarrini; Ricarda Seidensticker; Moritz Wildgruber; Maciej Pech; Peter Malfertheiner; Jens Ricke; Max Seidensticker Journal: Eur Radiol Date: 2021-08-31 Impact factor: 5.315