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AJNR - American Journal of Neuroradiology

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American Journal of Neuroradiology 26:1366-1369, June-July 2005
© 2005 American Society of Neuroradiology

Technical Note
INTERVENTIONAL

CT Angiography with Electrocardiographically Gated Reconstruction for Visualizing Pulsation of Intracranial Aneurysms: Identification of Aneurysmal Protuberance Presumably Associated with Wall Thinning

Motoharu Hayakawa^a, Kazuhiro Katada^b, Hirofumi Anno^c, Shuei Imizu^a, Junichi Hayashi^a, Keiko Irie^a, Makoto Negoro^a, Yoko Kato^a, Tetsuo Kanno^a and Hirotoshi Sano^a

^a Department of Neurosurgery, School of Medicine, Fujita Health University, Aichi, Japan
^b Department of Radiology, School of Medicine, Fujita Health University, Aichi, Japan
^c Faculty of Radiological Technology, School of Health Sciences, Fujita Health University, Aichi, Japan

Address correspondence to Motoharu Hayakawa, Department of Neurosurgery, School of Medicine, Fujita Health University, 1-98 Dengakugakubo, Kutukake, Toyoake, Aichi 470-1192, Japan

Summary: Electrocardiographically (ECG) gated multisection helical CT images were obtained in 23 patients with ruptured intracranial aneurysms. 4D-CTA (3D CT angiography plus phase data) images were generated by ECG-gated reconstruction. Four patients showed pulsation of an aneurysmal bleb. Clipping was performed in two of these patients, and the rupture site matched the pulsatile bleb seen in 4D-CTA.

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