The EPIQ System often performs comparably when compared to other imaging modalities such as X-ray, CT, and MRI.In one study (No. 121 in {MQ}Appendix 4{MQ}), contrast-enhanced ultrasound (CEUS) achieved over 95% sensitivity and specificity in examining focal liver lesions as compared to CT and MRI; the authors concluded that the costs of CEUS and CT in evaluating focal liver lesions are comparable, but CEUS is more cost-effective than MRI.