Back to Search
Start Over
Application of High-Resolution C-Arm CT Combined with Streak Metal Artifact Removal Technology for the Stent-Assisted Embolization of Intracranial Aneurysms.
- Source :
-
AJNR. American journal of neuroradiology [AJNR Am J Neuroradiol] 2019 Oct; Vol. 40 (10), pp. 1752-1758. Date of Electronic Publication: 2019 Sep 26. - Publication Year :
- 2019
-
Abstract
- Background and Purpose: Metal artifacts from coils and stents limit the level of detail in C-arm CT images of stent attachment and coiling attenuation in the aneurysm neck. We evaluated the utility of high-resolution C-arm CT combined with streak metal artifact removal technology for stent-assisted embolization of intracranial aneurysms.<br />Materials and Methods: From October 2017 to July 2018, the First Affiliated Hospital of Zhengzhou University treated 107 patients with intracranial aneurysms (118 aneurysms in total) with stent-assisted embolization. Conventional C-arm CT and high-resolution C-arm CT scanning of the stented area were performed during and after treatment. 3D images were reconstructed with and without streak metal artifact removal techniques. Subsequently, the image quality was compared. The reconstructed images indicated the stent deployment degree and packing density. Follow-up assessments included clinical and angiographic outcomes and complications.<br />Results: In total, 118 aneurysms were successfully embolized using 118 stents. Image quality was significantly higher ( P < .05) with high-resolution C-arm CT combined with streak metal artifact removal reconstruction. Streak metal artifact removal reconstruction and 2D angiography at working angles showed incomplete deployment of 6 stents and incomplete aneurysm embolization of 15 patients, which were subsequently resolved. One case of hemorrhage was noted postoperatively. Follow-up of 93 patients at 6-13 months indicated 3 cases of aneurysm recurrence.<br />Conclusions: High-resolution C-arm CT combined with the streak metal artifact removal technique effectively reduced metal artifacts from stents and coils during aneurysm embolization. This method can help physicians determine the extent of stent deployment and the packing density of coils and thus potentially reduce complications and aneurysm recurrence.<br /> (© 2019 by American Journal of Neuroradiology.)
- Subjects :
- Adult
Aged
Female
Humans
Imaging, Three-Dimensional methods
Male
Metals
Middle Aged
Stents
Surgery, Computer-Assisted instrumentation
Treatment Outcome
Artifacts
Embolization, Therapeutic methods
Image Interpretation, Computer-Assisted methods
Intracranial Aneurysm therapy
Surgery, Computer-Assisted methods
Tomography, X-Ray Computed methods
Subjects
Details
- Language :
- English
- ISSN :
- 1936-959X
- Volume :
- 40
- Issue :
- 10
- Database :
- MEDLINE
- Journal :
- AJNR. American journal of neuroradiology
- Publication Type :
- Academic Journal
- Accession number :
- 31558505
- Full Text :
- https://doi.org/10.3174/ajnr.A6190