Insights into Imaging

Table 2 Intra- and inter-observer consistency evaluation of CBF parameters in various ROIs using ICC measurement

From: Evaluation of surgical revascularization procedure outcomes for adult Moyamoya disease: a computed tomography perfusion-based study

ICC		STA-MCA		EDAS
ICC		Intra (95% CI)	Inter (95% CI)	Intra (95% CI)	Inter (95% CI)
Operated area	Pre-CBF	0.96 (0.81–0.99)	0.95 (0.85–0.98)	0.95 (0.92–0.98)	0.96 (0.92–0.98)
Operated area	Post-CBF	0.96 (0.93–0.98)	0.93 (0.88–0.96)	0.95 (0.91–0.97)	0.94 (0.89–0.97)
Basal ganglia	Pre-CBF	0.95 (0.91–0.97)	0.96 (0.92–0.98)	0.94 (0.90–0.97)	0.95 (0.91–0.97)
Basal ganglia	Post-CBF	0.94 (0.89–0.97)	0.92 (0.86–0.96)	0.91 (0.83–0.95)	0.91 (0.84–0.95)
Frontal lobe	Pre-CBF	0.95 (0.91–0.97)	0.93 (0.87–0.96)	0.95 (0.92–0.98)	0.96 (0.93–0.98)
Frontal lobe	Post-CBF	0.93 (0.88–0.96)	0.93 (0.86–0.96)	0.92 (0.85–0.96)	0.94 (0.88–0.97)
Pons	Pre-CBF	0.95 (0.91–0.98)	0.97 (0.82–0.99)	0.94 (0.89–0.97)	0.91 (0.83–0.95)
Pons	Post-CBF	0.91 (0.83–0.95)	0.93 (0.87–0.96)	0.92 (0.85–0.95)	0.91 (0.84–0.95)

ICC intra-class correlation coefficient, CBFcerebral blood flow, STA-MCA superficial temporal artery-middle cerebral artery, EDAS encephaloduroarteriosynangiosis, Pre- preoperative, Post- postoperative

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