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| 1 | Liver volumetry:Is imaging reliable?Personal experience and review of the literature显示文摘The amount of the future liver remnant volume is fun-damental for hepato-biliary surgery, representing animportant potential risk-factor for the development ofpost-hepatectomy liver failure. Despite this, there isno uniform consensus about the amount of hepaticparenchyma that can be safely resected, nor about themodality that should be chosen for this evaluation. Thepre-operative evaluation of hepatic volume, along witha precise identification of vascular and biliar anatomyand variants, are therefore necessary to reduce surgi-cal complications, especially for extensive resections.Some studies have tried to validate imaging methods[ultrasound, computed tomography(CT), magneticresonance imaging] for the assessment of liver volume,but there is no clear evidence about the most accuratemethod for this evaluation. Furthermore, this volumet-ric evaluation seems to have a certain degree of error,tending to overestimate the actual hepatic volume,therefore some conversion factors, which should givea more reliable evaluation of liver volume, have been proposed. It is widespread among non-radiologists the use of independent software for an off-site volumetric analysis, performed on digital imaging and communica-tions in medicine images with their own personal com-puter, but very few studies have provided a validation of these methods. Moreover, while the pre-transplanta-tion volumetric assessment is fundamental, it remains unclear whether it should be routinely performed in all patients undergoing liver resection. In this editorial the role of imaging in the estimation of liver volume is dis-cussed, providing a review of the most recent literature and a brief personal series of correlations between liver volumes and resection specimens' weight, in order to assess the precision of the volumetric CT evaluation. | Mirko D'Onofrio Riccardo De Robertis Emanuele Demozzi Stefano Crosara Stefano Canestrini Roberto Pozzi Mucelli | 2014 | World Journal of Radiology2014，6，4： | 11 |
| 2 | Comprehensive review of post-liver resection surgical complications and a new universal classification and grading system显示文摘Liver resection is the gold standard treatment for certain liver tumors such as hepatocellular carcinoma and metastatic liver tumors. Some patients with such tumors already have reduced liver function due to chronic hepatitis, liver cirrhosis, or chemotherapy-associated steatohepatitis before surgery. Therefore, complications due to poor liver function are inevitable after liver resection. Although the mortality rate of liver resection has been reduced to a few percent in recent case series, its overall morbidity rate is reported to range from 4.1% to 47.7%. The large degree of variation in the post-liver resection morbidity rates reported in previous studies might be due to the lack of consen-sus regarding the definitions and classification of postliver resection complications. The Clavien-Dindo(CD) classification of post-operative complications is widely accepted internationally. However, it is hard to apply to some major post-liver resection complications because the consensus definitions and grading systems for posthepatectomy liver failure and bile leakage established by the International Study Group of Liver Surgery are incompatible with the CD classification. Therefore, a unified classification of post-liver resection complications has to be established to allow comparisons between academic reports. | Masayuki Ishii Toru Mizuguchi Kohei Harada Shigenori Ota Makoto Meguro Tomomi Ueki Toshihiko Nishidate Kenji Okita Koichi Hirata | 2014 | World Journal of Hepatology2014，6，10： | 3 |
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