Simultaneous assessment of liver volume and whole liver fat content : a step towards one-stop shop preoperative MRI protocol
dc.contributor.author | D’Assignies, Gaspard | |
dc.contributor.author | Kauffmann, Claude | |
dc.contributor.author | Boulanger, Yvan | |
dc.contributor.author | Bilodeau, Marc | |
dc.contributor.author | Vilgrain, Valérie | |
dc.contributor.author | Soulez, Gilles | |
dc.contributor.author | Tang, An | |
dc.date.accessioned | 2023-05-17T15:17:26Z | |
dc.date.available | NO_RESTRICTION | fr |
dc.date.available | 2023-05-17T15:17:26Z | |
dc.date.issued | 2010-09-03 | |
dc.identifier.uri | http://hdl.handle.net/1866/27982 | |
dc.publisher | Springer | fr |
dc.subject | Liver fat | fr |
dc.subject | Fatty liver disease | fr |
dc.subject | MRI | fr |
dc.subject | Liver segmentation | fr |
dc.subject | Hepatic volume | fr |
dc.title | Simultaneous assessment of liver volume and whole liver fat content : a step towards one-stop shop preoperative MRI protocol | fr |
dc.type | Article | fr |
dc.contributor.affiliation | Université de Montréal. Faculté de médecine. Département de radiologie, radio-oncologie et médecine nucléaire | fr |
dc.identifier.doi | 10.1007/s00330-010-1941-1 | |
dcterms.abstract | Objective: The purpose of this study was to evaluate the ability of a whole liver volume (WLV) segmentation algorithm to measure fat fraction (FF). Methods: Twenty consecutive patients with histologically proven fatty liver disease underwent dual-echo in-phase/out-of-phase MRI and magnetic resonance spectroscopy (MRS) at 1.5 T. Two readers independently performed semiautomatic 3D liver segmentation on the out-of-phase sequences using an active contour model. FF was calculated for voxels, segments and WLV. Segmentation inter-observer reproducibility was assessed by intra-class correlation coefficient (ICC) for WLV and FF. Fat fraction correlation and agreement as determined by histology, MRS and MRI were determined. Results: ICC was 0.999 (95% CI: 0.999-1, P<0.001) for WLV FF calculation and 0.996 (95% CI: 0.990-0.998, P<0.001) for whole liver volume calculations. Strong correlations were found between FF measured by histology, MRS and WLV-MRI. A Bland-Altman analysis showed a good agreement between FF measured by MRS and WLV-MRI. No systematic variations of FF was found between segments when analyzed by ANOVA (F = 1.78, P= 0.096). Conclusion: This study shows that a reproducible whole liver volume segmentation method to measure fat fraction can be performed. This strategy may be integrated to a “one-stop shop” protocol in liver surgery planning. | fr |
dcterms.isPartOf | urn:ISSN:0938-7994 | fr |
dcterms.isPartOf | urn:ISSN:1432-1084 | fr |
dcterms.language | eng | fr |
UdeM.ReferenceFournieParDeposant | d'Assignies, G., Kauffmann, C., Boulanger, Y., Bilodeau, M., Vilgrain, V., Soulez, G., & Tang, A. (2011). Simultaneous assessment of liver volume and whole liver fat content: a step towards one-stop shop preoperative MRI protocol. European radiology, 21(2), 301–309. https://doi.org/10.1007/s00330-010-1941-1 | fr |
UdeM.VersionRioxx | Version acceptée / Accepted Manuscript | fr |
oaire.citationTitle | European radiology | fr |
oaire.citationVolume | 21 | fr |
oaire.citationIssue | 2 | fr |
oaire.citationStartPage | 301 | fr |
oaire.citationEndPage | 309 | fr |
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