Volume measurement of intracranial aneurysms from 3D rotational angiography: improvement of accuracy by gradient edge detection.
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.
Bescós
Javier Oliván
JO
Department of Electrical Engineering, Mathematics and Computer Sciences, Technical University Twente, Enschede, Netherlands.
Slob
Marjan J
MJ
Slump
Cornelis H
CH
Sluzewski
Menno
M
van Rooij
Willem Jan
WJ
D002533:Cerebral Angiography / Q000379:methods*; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000379:methods*; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging*; D019047:Phantoms, Imaging; D011857:Radiographic Image Interpretation, Computer-Assisted / Q000379:methods; D015203:Reproducibility of Results; D012886:Skull / Q000000981:diagnostic imaging