Table 2. Cross-tabulation of central pathology or surgical review and MRI results. CI confidence interval.

		Central pathology/surgical review
		Yes	No		Indeterminate
MRI results for capsular penetration	Penetrated	22	6		5
	Intact	13	31		5
	Total	35	37		10
Sensitivity: 22/35 = 62.9%; 95% CI: 44.9%, 78.0% Specificity: 31/37 = 83.8%; 95% CI: 67.3%, 93.2%
MRI results for lymph node involvement		Positive	Negative		No lymph nodes sampled
	Positive	9	4		2
	Negative	8	48		11
	Total	17	52		13
Sensitivity: 9/17 = 52.9%; 95% CI: 28.5%, 76.1% Specificity: 48/52 = 92.3%; 95% CI: 80.6%, 97.5%
MRI results for venous extension		Inferior vena cava	Renal vein	No	Indeterminate
	Inferior vena cava	1	0	0	0
	Renal vein	0	0	1	1
	No	0	3	72	4
	Total	1	3	73	5
Sensitivity: 1/4 = 25.0%. 95% CI: (1.3%, 78.1%). Specificity: 72/73 = 98.6%. 95% CI: (91.6%, 99.9%).
MRI results for tumor rupture		Yes	No		Indeterminate
	Yes	1	3		1
	No	1	74		2
	Total	2	77		3
Sensitivity: 1/2 = 50.0%; 95% CI: 2.7%, 97.3% Specificity: 74/77 = 96.1%; 95% CI: 88.3%, 99.0%