| Virtual liver resection and volumetric analysis of the future liver remnant using open source image processing software. | |
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MedLine Citation:
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PMID: 20652701 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: After extended liver resection, a remnant liver that is too small can lead to postresection liver failure. To reduce this risk, preoperative evaluation of the future liver remnant volume (FLRV) is critical. The open-source OsiriX PAC software system can be downloaded for free and used by nonradiologists to calculate liver volume using a stand-alone Apple computer. The purpose of this study was to assess the accuracy of OsiriX CT volumetry for predicting liver resection volume and FLVR in patients undergoing partial hepatectomy. METHODS: Preoperative contrast-enhanced liver CT scans of patients who underwent partial hepatectomy were analyzed by three observers. Two surgical trainees measured the total liver volume, resection volume, and tumor volume using OsiriX, and a radiologist measured these volumes using CT scanner-linked Aquarius iNtuition software. Resection volume was correlated with prospectively determined resection weight, and differences in the measured liver volumes were analyzed. Interobserver variability was assessed using Bland-Altman plots. RESULTS: 25 patients (M/F ratio: 13/12) with a median age of 61 (range, 34-77) years were included. There were significant correlations between the weight and volume of the resected specimens (Pearson's correlation coefficient: R(2) = 0.95). There were no major differences in total liver volumes, resection volumes, or tumor volumes for observers 1, 2, and 3. Bland-Altman plots showed a small interobserver variability. The mean time to complete liver volumetry for one patient using OsiriX was 19 +/- 3 min. CONCLUSIONS: OsiriX liver volumetry performed by surgeons is an accurate and time-efficient method for predicting resection volume and FLRV. |
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Authors:
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Joost R van der Vorst; Ronald M van Dam; Rogier S A van Stiphout; Maartje A van den Broek; Ilona H Hollander; Alfons G H Kessels; Cornelis H C Dejong |
Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: World journal of surgery Volume: 34 ISSN: 1432-2323 ISO Abbreviation: World J Surg Publication Date: 2010 Oct |
Date Detail:
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Created Date: 2010-09-10 Completed Date: 2011-01-06 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7704052 Medline TA: World J Surg Country: United States |
Other Details:
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Languages: eng Pagination: 2426-33 Citation Subset: IM |
Affiliation:
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Department of Surgery, Maastricht University Medical Centre, PO Box 5800, 6202 AZ, Maastricht, The Netherlands. j.r.van_der_vorst@lumc.nl |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Colorectal Neoplasms / pathology* Female Hepatectomy / adverse effects* Humans Image Processing, Computer-Assisted* Liver / pathology, radiography* Liver Failure / etiology, prevention & control* Liver Neoplasms / secondary, surgery* Male Middle Aged Organ Size Preoperative Care Surgery, Computer-Assisted Tomography, X-Ray Computed |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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