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Abstract

Rotational angiography assessment of cerebral aneurysms.

D J Hoff, M C Wallace, K G terBrugge and F Gentili
American Journal of Neuroradiology November 1994, 15 (10) 1945-1948;
D J Hoff
Department of Radiology, Toronto Hospital-Western Division, Ontario, Canada.
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M C Wallace
Department of Radiology, Toronto Hospital-Western Division, Ontario, Canada.
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K G terBrugge
Department of Radiology, Toronto Hospital-Western Division, Ontario, Canada.
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F Gentili
Department of Radiology, Toronto Hospital-Western Division, Ontario, Canada.
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Abstract

PURPOSE To compare rotational angiography with conventional digital subtraction angiography in the assessment of cerebral aneurysms.

METHODS Conventional digital subtraction angiography and rotational angiography were compared in 57 patients investigated for the preoperative diagnosis of subarachnoid hemorrhage and in 13 patients after surgery. Images were compared for location, visibility of the aneurysmal neck, vascular branch anatomy, projection, size, presence of spasm, and shape of the aneurysm.

RESULTS Rotational angiography was superior to the digital angiogram in assessing aneurysms and vascular anatomy in the following percentage of cases: 12% for location, 46% for the presence of a neck, 32% in the assessment of branch anatomy, 19% for projection, 12% for size, 3.5% for spasm, and 19% for shape. After surgery, rotational angiography more clearly demonstrated the presence or absence of a neck in 69% of the cases.

CONCLUSIONS Rotational angiography often allows better visualization of vascular anatomy and therefore improves the angiographic assessment of aneurysms when compared with conventional digital subtraction angiography, making it an excellent adjunct in the investigation of subarachnoid hemorrhage. The lack of subtraction artifacts from the surgical clips and multiple angles of view also allow better assessment of the presence or absence of a residual neck in postoperative cases.

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American Journal of Neuroradiology
Vol. 15, Issue 10
1 Nov 1994
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D J Hoff, M C Wallace, K G terBrugge, F Gentili
Rotational angiography assessment of cerebral aneurysms.
American Journal of Neuroradiology Nov 1994, 15 (10) 1945-1948;

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Rotational angiography assessment of cerebral aneurysms.
D J Hoff, M C Wallace, K G terBrugge, F Gentili
American Journal of Neuroradiology Nov 1994, 15 (10) 1945-1948;
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