Table 3.

ICC analysis

ICC Coefficient	Assessor A	Assessor B	Assessor C
Absolute value	0.990	0.972	0.854
Consistency	0.996	0.994	0.992

Intraclass correlation (ICC) analysis between the semiautomatic and manual volume measurements showed the difference in the level of agreement between the gastric volumes measured by the assessors with that measured by the semiautomatic technique in terms of absolute measurement, even though all the assessors were consistent in their measurements indicating the presence of systemic bias.