Diagnostic Techniques

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  • Diagnostic testing for coronary artery disease (CAD) is aided by the calculation of the pretest probability using either the Diamond-Forrester score or the Morise score. Many noninvasive diagnostic modalities are available to the clinician, including traditional ECG, echocardiography, CT, exercise testing and pharmacologic testing.

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    Diagnostic testing for coronary artery disease (CAD) is aided by the calculation of the pretest probability using either the Diamond-Forrester score or the Morise score. Many noninvasive diagnostic modalities are available to the clinician, including traditional ECG, echocardiography, CT, exercise testing and pharmacologic testing.

    Noninvasive tests are most useful in the diagnosis of CAD in patients with intermediate pretest likelihood of CAD. Patients with low pretest likelihood of CAD with normal electrocardiograms may benefit from noninvasive tests or a watchful waiting strategy. Patients with a high pretest likelihood of CAD may benefit greatly from direct referral to coronary angiography. Among the noninvasive diagnostic methods, exercise electrocardiography is the most studied, but is the least accurate for diagnosis in women.

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