Different post-processing methods of total spinal CT angiography for displaying spinal dural arteriovenous fistula
10.13929/j.issn.1672-8475.2025.06.010
- VernacularTitle:全脊髓CT血管成像不同后处理方式显示硬脊膜动静脉瘘效果
- Author:
Zhili YANG
1
;
Xuyang CAO
1
;
Shiliang MA
1
;
Qi GUO
1
;
Futao ZHANG
1
;
Jianmin XU
1
Author Information
1. 北京丰台右安门医院医学影像科,北京 100069
- Publication Type:Journal Article
- Keywords:
arteriovenous fistula;
spinal dura mater;
computed tomography angiography;
image processing,computer-assisted
- From:
Chinese Journal of Interventional Imaging and Therapy
2025;22(6):413-416
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the effect of different post-processing methods of total spinal CT angiography(CTA)for displaying spinal dural arteriovenous fistula(SDAVF).Methods Total spinal CTA data of 55 patients with SDAVF were retrospectively analyzed.Traditional post-processing of original CTA images(modified tissue growth boneless volume rendering[VR]and full-range axial maximum intensity projection[MIP])were performed,while the axial,sagittal and coronal MIP reconstructions,axial,sagittal and coronal VR reconstructions,as well as axial,sagittal and coronal MIP+VR reconstructions of original CTA images on lesion layers were completed,respectively.Taken digital subtraction angiography(DSA)as the gold standards,a 5-point scale was used to subjectively evaluate the effect of displaying the location,the range and feeding artery of fistula shown on CTA images based on different post-processing methods.Results No significant difference of subjective score of location nor feeding artery of fistula was found among axial MIP,VR and MIP+VR images(all P＞0.05),which were all higher than that of CTA images reconstructed using other post-processing methods(all P＜0.05).Meanwhile,no significant difference of subjective scores of the range of SDAVF was detected among sagittal MIP,VR and MIP+VR images(all P＞0.05),which were all higher than that of CTA images obtained using other post-processing methods(all P＜0.05).Conclusion The location and feeding artery of SDAVF could be observed based on axial MIP,VR and MIP+VR reconstructions of the total spinal CTA,while sagittal MIP,VR and MIP+VR reconstructions were conducive to display the range of SDAVF.Combination of multiple post-processing methods was helpful for comprehensive understanding the composition and range of SDAVF.
