Evaluation for residual aneurysms by three- dimensional digital subtraction angiography after intracranial aneurysm clipping
- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF NEUROSURGERY
- Issue:
- 2
- DOI:
- 10.3760/cma.j.issn.1001-2346.2010.02.007
- Key Word:
- 颅内动脉瘤;三维-数字减影血管造影;数字减影血管造影;残留动脉瘤;Intracranial aneurysm;3D-DSA;DSA;Residual aneurysm
Abstract： Objective The aim of this study was to assess the values of detecting intracranial residual aneurysms by three - dimensional digital subtraction angiography (3D - DSA) after clipping. Methods 3D - DSA and DSA were performed on 29 patients (35 aneurysms) after 3 to 6 months of clipping to assess the effect of detecting residual aneurysms by 3D - DSA contrasting to DSA. Results 10 residual aneurysms were detected by 3D - DSA, in which 8 neck residual aneurysms had been confirmed as the neck residual aneurysms, the other 2 residual dome aneurysms could not be confirmed as the completely clipped aneurysms in operations; However, only 3 aneurysms were detected by DSA, in which 1 neck residual aneurysm and 2 residual dome aneurysms were in line with the results of3D -DSA. While the other 7 residual aneurysm, which were detected by 3D - DSA, appeared as false negative results. Conclusion The effect of detecting residual aneurysms after clipping by 3D - DSA was obviously better than by DSA. 3D -DSA was more sensitive and accurate, especially in detecting the less neck remnant aneurysms. 3D - DSA was good at observing the morphologic change of residual aneurysms in long - term follow - up after clipping.
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