A preliminary methodology and precision study of producing 3D printing heart model by multimodel medical image fusion technology
10.3760/cma.j.issn.1004-4477.2018.11.002
- VernacularTitle:多模态医学影像融合技术3D打印心脏模型方法学及精准度研究
- Author:
Sikai CHEN
1
;
Qing ZHOU
;
Hongning SONG
;
Qing DENG
;
Dan JIA
;
Yuanting YANG
;
Jinling CHEN
Author Information
1. 430060,武汉大学人民医院超声科
- Keywords:
Echocardiography;
Image integrate and registration;
3D printing
- From:
Chinese Journal of Ultrasonography
2018;27(11):924-930
- CountryChina
- Language:Chinese
-
Abstract:
Objective To obtain abundant anatomical information using fusion of ultrasonic valve images and CT heart images and provide new methods of image processing for 3D heart printing . Methods Cardiac examinations of three-dimensional transesophageal echocardiography ( 3D-TEE) and DICOM images of 41 patients who had atrial fibrillation without structural cardiac diseases were analyzed retrospectively and the data afterward were processed by using Mimics software . For the single-mode image group ,only the heart CT were invoked as the data sources . For the multimodel image group ,CT and ultrasound images were invoked as the data sources . Valve structures of the 3D reconstructions were graded and the circumferences ,areas and other parameters of the two groups were measured . The images of two groups were overlapped ,and the angles between the two valve planes of each heart were evaluated and analysed . Results Score of valves reconstructed by ultrasound 3D construction was higher than those by CT reconstruction . Measurements of correlated parameters between the 3D-TEE group and the CT group showed no significant statistical difference ( P ＞ 0 .05 ) , and the consistency was well . Ultrasound measurements of 3D reconstructed valves were well concordant with CT reconstructed valves by Bland-Altman analysis . Mean value and standard deviation of the angles between mitral valve annulus and aortic valve ring plane of each heart in the two group were ( 3 .15 ± 0 .88)°,( 2 .87 ± 0 .76)°,respectively . Conclusions Ultrasonic valve images can fuse precisely with CT images and it provides a better displayed morphology . This will help improving simulation quality of the 3D printed hearts .
