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1.
Nihon Hoshasen Gijutsu Gakkai Zasshi ; 69(11): 1232-40, 2013 Nov.
Artigo em Japonês | MEDLINE | ID: mdl-24256646

RESUMO

BACKGROUND: In coil embolization of neurovascular aneurysms, we have noted that few wide-necked unruptured aneurysms are successfully embolized. This prompted us to search for useful factors to assist the choice of methods of coil embolization. METHOD: We first measured aneurysm size and volume using auto measurement (NVvol) and VER (NVver). Second, we calculated the volume (NVapp) and VER (NVapp) using approximation expressions. Third, we measured the end-on view neck angle using a 3 dimensional digital subtraction angiography (3D-DSA) image. RESULTS: NVvol and NVapp were correlated (y=0.87x). NVvol VER and NVapp VER approached 24% in 41 clinical cases. The dome/neck ratio averaged 1.15. Length of neck and the end-on view neck angle were significantly different between the stent-assisted group and the balloon-assisted group. NVvol and NVapp showed a good correlation with basic examination results in 41 clinical cases. CONCLUSION: The end-on view neck angle is significantly different. This boundary neck angle was 100° for the two groups. The end on-view neck angle is thus a useful factor for deciding medical treatment strategy.


Assuntos
Embolização Terapêutica/métodos , Aneurisma Intracraniano/diagnóstico por imagem , Aneurisma Intracraniano/terapia , Angiografia Digital , Humanos , Aneurisma Intracraniano/patologia , Imagens de Fantasmas
2.
Artigo em Japonês | MEDLINE | ID: mdl-23257596

RESUMO

PURPOSE: We made the fusion image of both stent and platinum coil after embolization of an unruptured aneurysm. METHOD: After scanning with cone beam computed tomography, we made three dimensional (3D) images of stent and coil and fused them. CONCLUSION: We can evaluate unruptured aneurysm after embolization by using a fusion image. 3D-fusion image is useful on clinical cases.


Assuntos
Embolização Terapêutica/métodos , Imageamento Tridimensional/métodos , Aneurisma Intracraniano/diagnóstico por imagem , Aneurisma Intracraniano/terapia , Stents , Tomografia Computadorizada por Raios X/métodos , Humanos , Imagens de Fantasmas
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