@article{oai:shiga-med.repo.nii.ac.jp:00004221, author = {神谷, 賢一 and 松林, 優児 and 寺田, 真也 and 永谷, 幸裕 and 鈴木, 友彰 and KAMIYA, Kenichi and MATSUBAYASHI, Yuji and TERADA, Shinya and NAGATANI, Yukihiro and FUJII, Taihei and NAKATA, Susumu and SUZUKI, Tomoaki}, journal = {Journal of cardiac surgery}, month = {May}, note = {pdf, Background and aim of the study: To investigate the accuracy of two methods of measuring features in cardiac anatomy, using an objective standard cast model., Methods: We made a silicone cast using a swine heart. Computerized tomography data of the solidified cast were processed through virtual reality (VR) software and through two-dimensional multiplanar-reconstruction (2D-MPR), and all measurements were compared against physical measurements of the cast., Results: The cast perfectly demonstrated the fine detail of the aortic valve and the proximal parts of coronary arteries. Anatomical features were measured by 3D-VR, 2D-MPR, and directly on the cast. Measurement differences between 2D-MPR and the cast were on average at least 3.6 times larger than those between 3D-VR and the cast., Conclusions: Based on the observed accuracy, 3D-VR measurements seem considerably more accurate than the current standard 2D-MPR, and 3D-VR may be considered as the next gold standard for 3D measurement of cardiac anatomy in vivo., Journal Article}, title = {Ex-vivo aortic root and coronary artery cast measurement to validate the accuracy of virtual imaging.}, year = {2022} }