Table 1:

Accuracy of the radiologists' interpretations^a

	Reader A		Reader B		Averaged
	Standard Neck CT	Larynx Protocol	Standard Neck CT	Larynx Protocol	Standard Neck CT	Larynx Protocol
Accuracy (total), n = 27	0.63 (17)	0.59 (16)	0.59 (16)	0.48 (13)	0.61	0.54
Supraglottis, n = 16	0.56 (9)	0.41 (7)	0.75 (12)	0.44 (7)	0.65	0.44
Glottis, n = 9	0.67 (6)	0.89 (8)	0.33 (3)	0.56 (5)	0.50	0.73

^aAccuracy is expressed as a fraction of the number of cases that were assigned a TNM-stage that matched the accepted TNM-stage for that case.. A total for each reader is shown, as is a breakdown for the cases of primary supraglottic tumors and glottic tumors. The total number of patients with subglottic and hypopharyngeal cancers (1 of each) were included in the overall analysis but were excluded in the subgroup analysis because of the small number of such cases.