Table 2.

Comparison of medical image modalities’ values in colonography

Modalities	Specificity	Sensitivity	Accuracy
DCBE	+	+	-
Colonoscopy	+++	++	+++
CTC	+	++	_
MRC	++	+	+
ET/CTC	++	++	+++

Legend: _- poor; + fair; +++ good; ++++ excellent.