Fig. 4From: Characteristics and key differences between patient populations receiving imaging modalities for coronary artery disease diagnosis in the USReferring physician distribution by index test. Abbreviations: cCTA, coronary computed tomography angiography; PET MPI, positron emission tomography myocardial perfusion imaging; SPECT MPI, single-photon emission computed tomography MPI; stress echo, stress echocardiographyBack to article page