title: Semiautomated spleen volumetry with diffusion-weighted MR imaging.
abstract: In this article, we determined the relative accuracy of semiautomated spleen volumetry with diffusion-weighted (DW) MR images compared to standard manual volumetry with DW-MR or CT images. Semiautomated spleen volumetry using simple thresholding followed by 3D and 2D connected component analysis was performed with DW-MR images. Manual spleen volumetry was performed on DW-MR and CT images. In this study, 35 potential live liver donor candidates were included. Semiautomated volumetry results were highly correlated with manual volumetry results using DW-MR (r = 0.99; P < 0.0001; mean percentage absolute difference, 1.43 ± 0.94) and CT (r = 0.99; P < 0.0001; 1.76 ± 1.07). Mean total processing time for semiautomated volumetry was significantly shorter compared to that of manual volumetry with DW-MR (P < 0.0001) and CT (P < 0.0001). In conclusion, semiautomated spleen volumetry with DW-MR images can be performed rapidly and accurately when compared with standard manual volumetry.
authors.affiliation: Department of Digital Media, The Catholic University of Korea, Bucheon-si, Gyeonggi-do, Korea.
authors.forename: Jeongjin
authors.initials: J
authors.lastname: Lee
authors.forename: Kyoung Won
authors.initials: KW
authors.lastname: Kim
authors.forename: Ho
authors.initials: H
authors.lastname: Lee
authors.forename: So Jung
authors.initials: SJ
authors.lastname: Lee
authors.forename: Sanghyun
authors.initials: S
authors.lastname: Choi
authors.forename: Woo Kyoung
authors.initials: WK
authors.lastname: Jeong
authors.forename: Heewon
authors.initials: H
authors.lastname: Kye
authors.forename: Gi-Won
authors.initials: GW
authors.lastname: Song
authors.forename: Shin
authors.initials: S
authors.lastname: Hwang
authors.forename: Sung-Gyu
authors.initials: SG
authors.lastname: Lee
mesh_terms: D000328:Adult; D000465:Algorithms; D038524:Diffusion Magnetic Resonance Imaging / Q000379:methods*; D005260:Female; D006801:Humans; D007089:Image Enhancement / Q000379:methods; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D021621:Imaging, Three-Dimensional / Q000379:methods*; D016031:Liver Transplantation / Q000473:pathology*; D008297:Male; D009929:Organ Size; D010363:Pattern Recognition, Automated / Q000379:methods*; D012016:Reference Values; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013154:Spleen / Q000033:anatomy & histology*