Three-dimensional CT angiography as a screening test for unruptured cerebral aneurysms: Its possibilities and disadvantages

An image guide for aneurysm embolization based on three dimensional CT angiography is reported. Multiplanner reformation (MPR) can measure the neck and dome of the aneurysm accurately enough to select the first coils for aneurysms. For neck evaluation, cut model and virtual endoscope are helpful because we can observe the neck from inside of dome or parent artery. Proximal arteries are visualized by 3D images and MPR if needed. Using laser lithography, we can get a real model of aneurysm and parent artery through which we can insert microcatheters and coils. 3D CTA is a dependable modality for embolization of cerebral aneurysms.

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Three-dimensional CT angiography (3D-CTA) for cerebral aneurysms

Clinical Neurology and Neurosurgery ◽

10.1016/s0303-8467(97)81284-x ◽

1997 ◽

Vol 99 ◽

pp. S10

Author(s):

Masayuki Nakana ◽

Yuji Endo ◽

Toru Kobayashi ◽

Yoichi Watanabe ◽

Masato Matsumoto ◽

...

Keyword(s):

Ct Angiography ◽

Three Dimensional ◽

Cerebral Aneurysms

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Microsurgical Management of Cerebral Aneurysms Based in CT Angiography with Three-Dimensional Reconstruction (3D-CTA) and Without Preoperative Cerebral Angiography

Acta Neurochirurgica ◽

10.1007/s007010170045 ◽

2001 ◽

Vol 143 (7) ◽

pp. 673-679 ◽

Cited By ~ 49

Author(s):

J. M. Gonz�lez-Darder ◽

J. V. Pesudo-Mart?�nez ◽

R. A. Feliu-Tatay

Keyword(s):

Ct Angiography ◽

Cerebral Angiography ◽

Three Dimensional ◽

Cerebral Aneurysms ◽

Three Dimensional Reconstruction ◽

Dimensional Reconstruction

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Application of three-dimensional CT angiography (3D-CTA) to cerebral aneurysms

Surgical Neurology ◽

10.1016/s0090-3019(99)00062-2 ◽

1999 ◽

Vol 52 (2) ◽

pp. 113-122 ◽

Cited By ~ 36

Author(s):

Yoko Kato ◽

Hirotoshi Sano ◽

Kazuhiro Katada ◽

Yuko Ogura ◽

Motoharu Hayakawa ◽

...

Keyword(s):

Ct Angiography ◽

Three Dimensional ◽

Cerebral Aneurysms

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Pre-Embolization Study of Ruptured Cerebral Aneurysms with Helical CT

Interventional Neuroradiology ◽

10.1177/15910199990050s142 ◽

1999 ◽

Vol 5 (1_suppl) ◽

pp. 219-223 ◽

Cited By ~ 2

Author(s):

M. Nomura ◽

S. Kida ◽

N. Uchiyama ◽

T. Yamashima ◽

J. Yamashita ◽

...

Keyword(s):

Digital Subtraction Angiography ◽

Ct Angiography ◽

Three Dimensional ◽

Cerebral Aneurysms ◽

Helical Ct ◽

Digital Subtraction ◽

Ruptured Aneurysms ◽

Aneurysmal Neck ◽

Anatomical Information ◽

Rotational Digital Subtraction Angiography

Sixteen ruptured aneurysms in 16 patients considered endovascular embolizations were examined. The findings of axial source images (axial images) and reconstructed three-dimensional CT angiography (3D-CTA) of helical CT were compared to those of rotational digital subtraction angiography (DSA). The aneurysmal neck and arterial branches adjacent to the neck were closely investigated. In seven out of 16 cases (43.8%), information provided by axial images and/or 3D-CTA was more useful than that of rotational DSA in evaluating the aneurysmal neck and arterial branches. Helical CT can provide valuable information on ruptured aneurysms that cannot be obtained by rotational DSA in some patients. This technique is useful to obtain anatomical information about aneurysms and to select the best therapeutic method.

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