1. Multiple Aneurysms AnaTomy CHallenge 2018 (MATCH): Phase I: Segmentation
- Author
-
Simona Hodis, Leonid Goubergrits, Kent D. Carlson, Dan Dragomir-Daescu, Vitor Mendes Pereira, Jordi Pallares, Gabriele Copelli, Philipp Berg, Salvatore Cito, Sergey Frolov, Matthew Howard, Hamidreza Rajabzadeh-Oghaz, David A. Steinman, S. V. Sindeev, Tin Lok Chiu, Nikhil Paliwal, Alison L. Marsden, Bong Jae Chung, Nicole M. Cancelliere, Andreas Spuler, Samuel Voß, Hui Meng, Yu An Wu, Anderson Chun On Tsang, Gábor Janiga, Kerstin Kellermann, Oliver Beuing, Santhosh Seshadhri, Jan Bruening, Benjamin Csippa, Georg Hille, Hiroyuki Takao, Thomas Wagner, Mariya S. Pravdivtseva, Ender A. Finol, Alexander Brawanski, Juan R. Cebral, Yi Qian, Hernán G. Morales, Saba Elias, Soichiro Fujimura, Sylvia Saalfeld, Shin Ichiro Sugiyama, Muhammad Owais Khan, Kuniyasu Niizuma, Kristian Valen-Sendstad, Aslak W. Bergersen, Masaaki Shojima, György Paál, Senol Piskin, and Christof Karmonik
- Subjects
Patient-Specific Modeling ,2d images ,Middle Cerebral Artery ,3d surfaces ,Computer science ,Biomedical Engineering ,Aneurysm, Ruptured ,Risk Assessment ,030218 nuclear medicine & medical imaging ,03 medical and health sciences ,Reference image ,Imaging, Three-Dimensional ,0302 clinical medicine ,Aneurysm ,Predictive Value of Tests ,Risk Factors ,medicine ,Humans ,Segmentation ,Rupture risk ,Multiple aneurysms ,Hemodynamics ,Models, Cardiovascular ,Reproducibility of Results ,Intracranial Aneurysm ,Anatomy ,Middle Aged ,Subarachnoid Hemorrhage ,Prognosis ,medicine.disease ,Cerebral Angiography ,Ostium ,Regional Blood Flow ,Cerebrovascular Circulation ,Radiographic Image Interpretation, Computer-Assisted ,Female ,Stress, Mechanical ,Cardiology and Cardiovascular Medicine ,Blood Flow Velocity ,030217 neurology & neurosurgery - Abstract
Advanced morphology analysis and image-based hemodynamic simulations are increasingly used to assess the rupture risk of intracranial aneurysms (IAs). However, the accuracy of those results strongly depends on the quality of the vessel wall segmentation. To evaluate state-of-the-art segmentation approaches, the Multiple Aneurysms AnaTomy CHallenge (MATCH) was announced. Participants carried out segmentation in three anonymized 3D DSA datasets (left and right anterior, posterior circulation) of a patient harboring five IAs. Qualitative and quantitative inter-group comparisons were carried out with respect to aneurysm volumes and ostia. Further, over- and undersegmentation were evaluated based on highly resolved 2D images. Finally, clinically relevant morphological parameters were calculated. Based on the contributions of 26 participating groups, the findings reveal that no consensus regarding segmentation software or underlying algorithms exists. Qualitative similarity of the aneurysm representations was obtained. However, inter-group differences occurred regarding the luminal surface quality, number of vessel branches considered, aneurysm volumes (up to 20%) and ostium surface areas (up to 30%). Further, a systematic oversegmentation of the 3D surfaces was observed with a difference of approximately 10% to the highly resolved 2D reference image. Particularly, the neck of the ruptured aneurysm was overrepresented by all groups except for one. Finally, morphology parameters (e.g., undulation and non-sphericity) varied up to 25%. MATCH provides an overview of segmentation methodologies for IAs and highlights the variability of surface reconstruction. Further, the study emphasizes the need for careful processing of initial segmentation results for a realistic assessment of clinically relevant morphological parameters.
- Published
- 2018
- Full Text
- View/download PDF