Ellipsoid approximation versus 3D rotational angiography in the volumetric assessment of intracranial aneurysms.
作者： B Daghman , M Piotin , C Mounayer , J Moret , L Spelle
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摘要: BACKGROUND AND PURPOSE: The purpose of this study was to compare the volumetric results intracranial aneurysms obtained by calculation volume an ellipsoid with those 3D rotational angiography (3D-RA). METHODS: First, precision 3D-RA in assessment measurement aneurysm had be established. gave overestimation 4% 5.5% actual a spherical object. Then, 484 consecutive human were studied 3D-RA, allowing determination their volume. In meantime, dimensions (height and width) measured on pictures generated 3D-RA. volumes calculated (Vcalc) considering shape ellipsoidal. RESULTS: overestimated 15 ± 38% given Taking into account 10% margin error, 227 (47%) 44 34%, whereas 113 (23%) underestimated 25 12%. Only 144 (30%) within limits discrepancy. Concordance good for pericallosal basilar tip (mean 6 22% 8 27%, respectively). Conversely, there high discrepancy between posterior communicating artery 22 44%). CONCLUSION: based is relatively accurate aneurysms, probably owing or elliptic shape. formula not adequate irregularly shaped lesions, such as aneurysms.
参考文章(25)
S. Ishihara, I.B. Ross, M. Piotin, A. Weill, H. Aerts, J. Moret, 3D Rotational Angiography: Recent Experience in the Evaluation of Cerebral Aneurysms for Treatment. Interventional Neuroradiology. ,vol. 6, pp. 85- 94 ,(2000) , 10.1177/159101990000600202
V B Graves, C M Strother, A Rappe, Aneurysm hemodynamics: an experimental study. American Journal of Neuroradiology. ,vol. 13, pp. 1089- 1095 ,(1992)
V B Graves, C M Strother, C R Partington, A Rappe, Flow dynamics of lateral carotid artery aneurysms and their effects on coils and balloons: an experimental study in dogs. American Journal of Neuroradiology. ,vol. 13, pp. 189- 196 ,(1992)
Boris Lubicz, Michel Piotin, Charbel Mounayer, Laurent Spelle, Jacques Moret, Selective endovascular treatment of intracranial aneurysms with a liquid embolic: a single-center experience in 39 patients with 41 aneurysms. American Journal of Neuroradiology. ,vol. 26, pp. 885- 893 ,(2005)
Yutaka Kai, Jun-ichiro Hamada, Motohiro Morioka, Shigetoshi Yano, Jun-ichi Kuratsu, Evaluation of the stability of small ruptured aneurysms with a small neck after embolization with Guglielmi detachable coils: correlation between coil packing ratio and coil compaction. Neurosurgery. ,vol. 56, pp. 785- 792 ,(2005) , 10.1227/01.NEU.0000156790.28794.EA
Y. Kawanabe, A. Sadato, W. Taki, N. Hashimoto, Endovascular occlusion of intracranial aneurysms with Guglielmi detachable coils: correlation between coil packing density and coil compaction. Acta Neurochirurgica. ,vol. 143, pp. 451- 455 ,(2001) , 10.1007/S007010170073
M. Piotin, P. Gailloud, L. Bidaut, S. Mandai, M. Muster, J. Moret, D. A. R�fenacht, CT angiography, MR angiography and rotational digital subtraction angiography for volumetric assessment of intracranial aneurysms. An experimental study Neuroradiology. ,vol. 45, pp. 404- 409 ,(2003) , 10.1007/S00234-002-0922-8
K. Perktold, K. Gruber, T. Kenner, H. Florian, Calculation of pulsatile flow and particle paths in an aneurysm-model. Basic Research in Cardiology. ,vol. 79, pp. 253- 261 ,(1984) , 10.1007/BF01908024
H. J. Steiger, H. -J. Reulen, Low frequency flow fluctuations in saccular aneurysms. Acta Neurochirurgica. ,vol. 83, pp. 131- 137 ,(1986) , 10.1007/BF01402392
Luc M. Bidaut, Christophe Laurent, Michel Piotin, Philippe Gailloud, Michel Muster, Jean H.D. Fasel, Daniel A. Rüfenacht, François Terrier, Second-generation three-dimensional reconstruction for rotational three-dimensional angiography Academic Radiology. ,vol. 5, pp. 836- 849 ,(1998) , 10.1016/S1076-6332(98)80244-4