Preliminary application of CT and 3D-DSA data sources in 3D printing of intracranial arteriovenous ;malformations
Li Jianyi
Kong Xiangxue
Wang Zhanglin
Peng Peng
Chen Guangzhong
Dong Mengqi
Qin Kun
Peng Chao
Abstract：Objective To compare the effect of thin-sliced enhanced CT scanning and 3D-DSA data sources in the 3 D printing data reconstruction of intracranial arteriovenous malformation (AVM ). Methods Five patients with AVM were selected prospectively,3 were Spetzler-Martin grade II and 2 were grade III. Two of them used 256-slice spiral CT thin slice enhanced scanning. Three used the 3D-DSA rotating imaging,and the DICOM raw data of the examination results were extracted. Digital processing was performed by using the Mimics software,and the 3 D printing was performed according to the ratio of 1∶1 obtaining the solid model and the effects were compared. Results Using the data source 3 D printing of 256 slice spiral CT thin-slice enhanced scan could obtained skull and blood vessel image information and could reveal the smallest diameter of 0. 9 mm vessel,however,the fine branch structures of the vessel were difficult to distinguish. The 3D printing based on 3D-DSA data,although the digital subtraction did not have the skull data information,the vascular branches showed more abundant. It could reveal the smallest diameter of 0. 9 mm vessel. Conclusions Using the CT thin-slice enhanced scan or 3D-DSA data source can obtain reconstruction images of AVM nidus,and 3D-DSA shows that the better effect for spatial structure of AVM nidus. It is helpful to the design of preoperative treatment scheme and the development of corresponding auxiliary tools.
Keywords：Intracranial arteriovenous malformations3D printing3D-digital subtraction angiographyComputed tomographyImage comparison
Publication Date：2016-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 78-81 )