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RT Journal Article
SR Electronic
T1 Volume Measurement of Intracranial Aneurysms from 3D Rotational Angiography: Improvement of Accuracy by Gradient Edge Detection
JF American Journal of Neuroradiology
JO Am. J. Neuroradiol.
FD American Society of Neuroradiology
SP 2569
OP 2572
VO 26
IS 10
A1 Bescós, Javier Oliván
A1 Slob, Marjan J.
A1 Slump, Cornelis H.
A1 Sluzewski, Menno
A1 van Rooij, Willem Jan
YR 2005
UL http://www.ajnr.org/content/26/10/2569.abstract
AB Summary: Manual volume measurement of intracranial aneurysms from 3D rotational angiography varies on different threshold settings and, therefore, is operator-dependent. We developed and validated a method based on automatic gradient edge detection that is independent on threshold settings and provides an accurate and reproducible volume measurement. This method was compared with manual volume calculation in 13 aneurysm phantoms, and the results were significantly more accurate.