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- #Osirix lite vs md software#
- #Osirix lite vs md Pc#
- #Osirix lite vs md professional#
- #Osirix lite vs md free#
- #Osirix lite vs md mac#
The study also planned to compare the prospective measurements of ImageJ and OsiriX ® to those of CT volumetry performed by a radiologist using classic radiology software (iNtuition ®) linked to a CT scanner system.
#Osirix lite vs md Pc#
Therefore, the objective of the present study was to compare ImageJ and OsiriX ® when performing prospective CT volumetric analysis of the liver on a PC in patients undergoing major liver resection. The accuracy of CT volumetry of the liver resection specimen prospectively prior to surgery has not yet been assessed for either of these software packages.
#Osirix lite vs md mac#
OsiriX ® is a more user-friendly, freely downloadable open source image analysis software package for the Apple Mac OS. In 2010, our group assessed the accuracy of OsiriX ® for CT volumetry of the liver.
#Osirix lite vs md free#
In 2007, our group conducted a retrospective study and proposed a method to perform liver volumetry with ImageJ, which is a free open-source image analysis software package developed at the National Institutes of Health (NIH).
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The Digital Imaging and Communications in Medicine (DICOM) standard has enabled volumetry on a stand-alone or network-attached personal computer (PC) remote from the radiology hardware (CT or MRI scanner). In addition, the intended operation and the potential surgical scenarios should be known to the investigator to predict the remnant liver volume accurately, which requires the expertise of a liver surgeon.
#Osirix lite vs md professional#
The liberal use of existing professional image-processing software is often limited by costs, access, flexibility, lack of radiology staff, and specific hardware requirements. In this context, repeated liver resections, increasingly extensive resections, and resections after aggressive chemotherapy are likely to lead to more patients with small (functional) remnant livers and hence more risk of postoperative liver failure.Īs we and others have shown before, liver volumes can be calculated accurately from CT or magnetic resonance imaging (MRI) scans. This is especially important if the underlying liver parenchyma is abnormal or has impaired functional capacity. The safety of liver resection may increase if an estimate of minimal remnant liver volume is obtained via computed tomography (CT) volumetry.
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A reliable volumetric assessment of the part of the liver to be resected and the future residual liver volume should be a critical part of preoperative evaluation, particularly for extended resections, to prevent postoperative liver failure after resection. Postoperative liver dysfunction may occur when the extent of tumor involvement requires major liver resection (three or more segments), leaving a small postoperative remnant liver. Whereas in the past a number of exclusion criteria were applied to the selection of patients for hepatectomy, they have now been largely abandoned, and postoperative remnant liver volume and function have become the main determinants of resectability. Hepatectomies are performed increasingly more often, mainly because indications for liver resection are continuously being extended. ImageJ and OsiriX ® yield results comparable to the radiological software iNtuition ®. Prospective hepatic CT volumetry with ImageJ or OsiriX ® is reliable and can be accurately used on a PC by nonradiologists. There were no major differences in total liver volumes, resection volumes, or tumour volumes for these three software packages. 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 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). ResultsĪ total of 15 patients (8 men, 7 women) with a median age of 63 years (48–79 years) were included. 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 radiologist also measured these volumes with CT scanner-linked Aquarius iNtuition ® software.
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Two surgeons and one surgical trainee measured volumes of total liver, tumor, and future resection specimen prospectively with ImageJ and OsiriX ®. Patients scheduled for a right hemihepatectomy were eligible for inclusion. 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. ImageJ and OsiriX ® are both free, open-source image processing software packages. A small remnant liver volume is an important risk factor for posthepatectomy liver failure.