Department of Surgery, Maastricht University Medical Center, P.O. Box 616, 6200 MD, Maastricht, The Netherlands.
World J Surg. 2011 Feb;35(2):386-92. doi: 10.1007/s00268-010-0877-6.
A small remnant liver volume is an important risk factor for posthepatectomy liver failure. ImageJ and OsiriX® are both free, open-source image processing software packages. The aim of the present study was to compare ImageJ and OsiriX® in performing prospective computed tomography (CT) volumetric analysis of the liver on a personal computer (PC) in patients undergoing major liver resection.
Patients scheduled for a right hemihepatectomy were eligible for inclusion. Two surgeons and one surgical trainee measured volumes of total liver, tumor, and future resection specimen prospectively with ImageJ and OsiriX®. A radiologist also measured these volumes with CT scanner-linked Aquarius iNtuition® software. Resection volumes were compared with the actual weights of the liver specimens removed during surgery, and differences between the measured liver volumes were analyzed.
A total of 15 patients (8 men, 7 women) with a median age of 63 years (48-79 years) were included. There was a significant correlation between the measured weights of resection specimens and the volumes calculated prospectively with ImageJ and OsiriX® (r=0.89; r=0.83, respectively). There was also a significant correlation between the volumes measured with radiological software iNtuition® and the volumes measured with ImageJ and OsiriX® (r=0.93; r=0.95, respectively).
There were no major differences in total liver volumes, resection volumes, or tumour volumes for these three software packages. Prospective hepatic CT volumetry with ImageJ or OsiriX® is reliable and can be accurately used on a PC by nonradiologists. ImageJ and OsiriX® yield results comparable to the radiological software iNtuition®.
小残余肝体积是肝切除术后肝功能衰竭的一个重要危险因素。ImageJ 和 OsiriX®都是免费的开源图像处理软件包。本研究旨在比较 ImageJ 和 OsiriX®在个人计算机（PC）上对行大肝切除术患者进行前瞻性 CT 容积分析的性能。
符合条件的患者为拟行右半肝切除术的患者。两名外科医生和一名外科受训者使用 ImageJ 和 OsiriX®对总肝、肿瘤和未来切除标本的体积进行前瞻性测量。放射科医生还使用 CT 扫描仪链接的 Aquarius iNtuition®软件测量这些体积。切除体积与手术中切除的肝标本实际重量进行比较，并分析测量的肝体积之间的差异。
共纳入 15 名患者（8 名男性，7 名女性），中位年龄为 63 岁（48-79 岁）。切除标本的实测重量与 ImageJ 和 OsiriX® 前瞻性计算的体积之间存在显著相关性（r=0.89；r=0.83）。放射学软件 iNtuition®测量的体积与 ImageJ 和 OsiriX®测量的体积之间也存在显著相关性（r=0.93；r=0.95）。
这三种软件包的总肝体积、切除体积或肿瘤体积无显著差异。ImageJ 或 OsiriX®的前瞻性 CT 容积测量是可靠的，非放射科医生可以在 PC 上准确使用。ImageJ 和 OsiriX®的结果与放射学软件 iNtuition®相当。
