Table 4. Contingency table for the presence of prostate cancer in each segment of the prostate, given for each observer in our study.

	Pathologist pos.	Pathologist neg.
Radiologist expert gray pos.	64	19
Radiologist expert gray neg.	116	217
Radiologist 1 color pos.	35	20
Radiologist 1 color neg.	145	216
Radiologist 2 color pos.	47	24
Radiologist 2 color neg.	133	212
Radiologist 4 color pos.	27	12
Radiologist 4 color neg.	153	224
Radiologist 5 color pos.	30	10
Radiologist 5 color neg.	150	226
Radio. mean color pos.	37	12
Radio. mean color neg.	143	224
Radio. expert color pos.	64	21
Radio. expert color neg.	116	215