RT Journal A1 Fleischmann KE, Hunink MM, Kuntz KM, Douglas PS T1 EXercise echocardiography vs exercise spect testing—reply JF JAMA JO JAMA YR 1999 FD November 3 VO 282 IS 17 SP 1621 OP 1623 DO 10-1001/pubs.JAMA-ISSN-0098-7484-282-17-jbk1103 UL http://dx.doi.org/10-1001/pubs.JAMA-ISSN-0098-7484-282-17-jbk1103 AB Drs Dickinson and Dworkin present conclusions from these articles on pharmacologic stress testing and identification of viable myocardium. However, our article addresses exercise and diagnosis of CAD, and expert opinion in other areas should not affect its validity. We combined data for thallium and 99mTc sestamibi imaging because the choice of tracer was not a significant predictor of performance in SROC analysis, and some protocols used both.