Related Experiment Videos
Postoperative 3D angiography in intracranial aneurysms
Hyun-Seung Kang1, Moon Hee Han, Bae Ju Kwon
1Department of Radiology, Seoul National University College of Medicine, Korea.
AJNR. American Journal of Neuroradiology
|October 27, 2004
Summary
Three-dimensional angiography detects more residual intracranial aneurysms after surgery than digital subtraction angiography. This advanced imaging may improve long-term follow-up of treated aneurysms.
Area of Science:
- Neurosurgery
- Vascular Imaging
- Radiology
Background:
- Postsurgical evaluation of intracranial aneurysms is crucial due to risks of regrowth and hemorrhage.
- Residual aneurysms pose a significant threat, necessitating accurate detection methods.
Purpose of the Study:
- To assess the diagnostic value of 3D angiography in evaluating intracranial aneurysms after surgical clipping.
- To compare the efficacy of 3D angiography with digital subtraction angiography (DSA) in detecting residual aneurysms.
Main Methods:
- Preoperative 3D angiography and DSA images were acquired from 71 patients with 88 intracranial clipped aneurysms.
- Analysis focused on the incidence of postoperative residual aneurysms and comparison between imaging modalities.
Main Results:
- 3D angiography identified 37 residual aneurysms, including 25 small remnants, compared to only six with DSA.
- DSA identified 12 large residual necks, a finding also visualized by 3D angiography.
- 3D angiography allowed simultaneous visualization of clips, aneurysms, and parent arteries, offering complete clip-aneurysm configuration assessment.
Conclusions:
- 3D angiography is superior to DSA in detecting residual intracranial aneurysms post-surgery.
- While 3D angiography identified more lesions, none required immediate intervention.
- 3D angiography can establish baseline data for long-term surveillance of postsurgical aneurysms.