Table 1:

Image-quality ratings^{^a}

Timing of Image Acquisition	Visibility of	Scores Unacceptable	Scores Acceptable	Scores High
Angiographic run preintervention	1) Aneurysm-parent vessel morphology (C1)	1	2	3
	2) Proximal vessel (C2)	1	2	3
	3) Distal vessel (C3)	1	2	3
Microwire navigation	4) Microwire inside aneurysm (C4)	1	2	3
	5) Microwire leaving guide (C5)	1	2	3
	6) Guide tip (C6)	1	2	3
Microcatheter navigation	7) Distal tip of microcatheter in aneurysm (C7)	1	2	3
Microcatheter navigation	8) Guide tip (C6)	1	2	3
Postcoiling	9) Coil inside aneurysm (C8)	1	2	3
Postcoiling	10) Guide tip (C6)	1	2	3

Note:—C indicates criterion.
↵a Used to evaluate the diagnostic quality of both standard cerebral angiograms and cerebral angiograms when the ROI was applied for x-ray dose reduction.