nach oben

International Journal of Computer Assisted Radiology and Surgery

Erschienen in:

01.03.2014 | Original Article

Statistical shape model of a liver for autopsy imaging

verfasst von: Atsushi Saito, Akinobu Shimizu, Hidefumi Watanabe, Seiji Yamamoto, Shigeru Nawano, Hidefumi Kobatake

Erschienen in: International Journal of Computer Assisted Radiology and Surgery | Ausgabe 2/2014

Einloggen, um Zugang zu erhalten

Abstract

Purpose

Modeling the postmortem liver for autopsy imaging is a challenging problem owing to the variation in organ deformation found in cadavers and limited availability of postmortem liver CT scans. An algorithm was developed to construct a statistical shape model (SSM) for the adult postmortem liver in autopsy imaging.

Methods

First, we investigated the relationship between SSMs obtained from in vivo liver CT scans and those from postmortem cases. Liver shapes were embedded in level set functions and statistically modeled using a spatially weighted principal components analysis. The performance of the SSMs was evaluated in terms of generalization and specificity. Several algorithms for the transformation from in vivo livers to postmortem livers were proposed to enhance the performance of an SSM for a postmortem liver, followed by a comparative study on SSMs. Specifically, five SSMs for a postmortem liver were constructed and evaluated using 32 postmortem liver labels, and postmortem liver labels synthesized from 144 in vivo liver labels were constructed using the proposed transformation algorithms. We also compared the proposed SSMs with three conventional SSMs trained from postmortem liver labels and/or in vivo liver labels.

Results

The investigation showed that the performance of an SSM constructed using in vivo liver labels suffered when describing postmortem liver shapes. Two of the five proposed SSMs trained using synthesized postmortem livers showed the best performance with no significant differences between them, and they statistically outperformed all conventional SSMs tested.

Conclusions

The performance of conventional SSMs can be improved by using both postmortem liver shape labels and artificial shape labels synthesized from in vivo liver shape labels.

Ezawa H, Yoneyama R, Kandatsu S (2003) Introduction of autopsy imaging redefines the concept of autopsy: 27 cases of clinical experience. Pathol Int 53:865–873. doi:10.1046/j.1440-1827.2003.01573.x

Ezawa E, Shiotani S, Uchigasaki S (2007) Autopsy imaging in Japan. Rechtsmedizin 17:19–20. doi:10.1007/s00194-006-0409-8

Heimann T, Meinzer HP (2009) Statistical shape models for 3D medical image segmentation: a review. Med Image Anal 13:543–563. doi:10.1016/j.media.2009.05.004 PubMedCrossRef

Kainmüller D, Lange T, Lamecker H (2007) Shape constrained automatic segmentation of the liver based on a heuristic intensity model. In: Proceedings of MICCAI workshop 3D segmentation in the clinic: a grand challenge

Okada T, Shimada R, Hori M, Nakamoto M, Chen YW, Nakamura H, Sato Y (2008) Automated segmentation of the liver from 3D CT images using probabilistic atlas and multilevel statistical shape model. Acad Radiol 15:1390–1403. doi:10.1016/j.acra.2008.07.008

Nakagomi K, Shimizu A, Kobatake H, Yakami M, Fujimoto K, Togashi K (2012) Multi-shape graph cuts with neighbor prior constraints and its application to lung segmentation from a chest CT volume. Med Image Anal 17:62–77. doi:10.1016/j.media.2012.08.002

De Bruijne M, Lund MT, Tanko LB, Pettersen PC, Nielsen M (2007) Quantitative vertebral morphometry using neighbor-conditional shape models. Med Image Anal 11:503–512. doi: 10.1016/j.media.2007.07.004

Baka N, De Bruijne M, Reiber JHC, Niessen W, Lelieveldt BPF (2010) Confidence of model based shape reconstruction from sparse data. In: Proceedings of ISBI 1077–1080. doi:10.1109/ISBI.2010.5490179

Syrkina E, Blanc R, Székely G (2011) Propagating uncertainties in statistical model based shape prediction. In: Proceedings of SPIE 796240. doi:10.1117/12.877960

10.

Tomoshige S, Oost E, Shimizu A, Watanabe H, Kobatake H, Nawano S (2012) Relaxed conditional statistical shape models and their application to non-contrast liver segmentation. Med Image Anal 7601:126–136. doi:10.1016/j.media.2012.02.001

11.

Tsai A, Wells W, Tempany C, Grimson E, Willsky A (2004) Mutual information in coupled multi-shape model for medical image segmentation. Med Image Anal 8:429–445. doi:10.1016/j.media.2004.01.003

12.

Yang J, Staib LH, Duncan JS (2004) Neighbor-constrained segmentation with level set based 3-d deformable models. IEEE Trans Med Imaging 23:940–948. doi:10.1109/TMI.2004.830802

13.

Pohl KM, Fisher J, Shenton ME, McCarley RW, Grimson WEL, Kikinis R, Wells WM (2006) Logarithm odds maps for shape representation. Proc MICCAI 4191:955–963. doi:10.1007/11866763_117

14.

Malcolm JG, Rathi Y, Shenton ME, Tannenbaum A (2008) Label space: a coupled multi-shape representation. Proc MICCAI 5242:416–424. doi:10.1007/978-3-540-85990-1_50

15.

Changizi N, Hamarneh G (2010) Probabilistic multi-shape representation using an isometric log-ratio mapping. Proc MICCAI 6363:563–570. doi:10.1007/978-3-642-15711-0_70

16.

Okada T, Linguraru MG, Yoshida Y, Hori M, Summers RM, Chen Y, Tomiyama N, Sato Y (2011) Abdominal multi-organ segmentation of CT images based on hierarchical spatial modeling of organ interrelations. 7029:173–180. doi:10.1007/978-3-642-28557-8_22

17.

Linguraru MG, Pura JA, Pamulapati V, Summers RM (2012) Statistical 4D graphs for multi-organ abdominal segmentation from multiphase CT. Med Image Anal 16:904–914. doi:10.1016/j.media.2012.02.001

18.

Murase H, Nayar SK (1996) Learning by a generation approach to appearance-based object recognition. Int Conf Pattern Recognit 1:25–29. doi:10.1109/ICPR.1996.545985

19.

Gavrila DM, Giebel J (2001) Virtual sample generation for template-based shape matching. Proc IEEE Comput Soc Conf Comput Vis Pattern Recognit 1:676–681. doi:10.1109/CVPR.2001.990540

20.

Ishida H, Takahashi H, Ide I, Mekada Y, Murase H (2007) Generation of training data by degradation models for traffic sign symbol recognition. IEICE Trans Inf Syst E90–D:1134–1141. doi:10.1093/ietisy/e90-d.8.1134

21.

Leventon M, Grimson WEL, Faugeras O (2000) Statistical shape influence in geodesic active contours. Proc IEEE Comput Soc Conf Comput Vis Pattern Recognit 1:316–323. doi:10.1109/CVPR.2000.855835

22.

Uchida Y, Shimizu A, Kobatake H, Nawano S, Shinozaki K (2010) A comparative study of statistical shape models of the pancreas. Int J Comput Assist Radiol Surg 5(suppl 1):S385–S387. doi:10.1007/s11548-010-0469-9

23.

Jeong JY (2009) Estimation of probability distribution on multiple anatomical objects and evaluation of statistical shape models. PhD thesis, Department of Computer Science, University of North Carolina

24.

Styner MA, Rajamani KT, Nolte L-P, Zsemlye G, Székely G, Taylor CJ, Davies RH (2003) Evaluation of 3D correspondence methods for model building. Inf Process Med Imaging 2732:63–75. doi: 10.1007/978-3-540-45087-0_6

25.

Lagarias JC, Reeds JA, Wright MH, Wright PE (1998) Convergence properties of the Nelder-Mead simplex method in low dimensions. SIAM J Optim 9:112–147. doi:10.1137/S1052623496303470

Titel: Statistical shape model of a liver for autopsy imaging
verfasst von: Atsushi Saito
Akinobu Shimizu
Hidefumi Watanabe
Seiji Yamamoto
Shigeru Nawano
Hidefumi Kobatake
Publikationsdatum: 01.03.2014
Verlag: Springer Berlin Heidelberg
Erschienen in: International Journal of Computer Assisted Radiology and Surgery / Ausgabe 2/2014
Print ISSN: 1861-6410
Elektronische ISSN: 1861-6429
DOI: https://doi.org/10.1007/s11548-013-0923-6

Update Radiologie

Bestellen Sie unseren Fach-Newsletter und bleiben Sie gut informiert.

Newsletter bestellen

Live-Webinar "Urologie und Sexualmedizin in der Praxis"

Springer Medizin

Statistical shape model of a liver for autopsy imaging