CCTA may help rule out coronary artery disease.  Coronary Computed Tomography Angiography offers accurate views of arteries in the heart, but radiation demands judicious use.
D017023:Coronary Angiography / Q000379:methods*; D003324:Coronary Artery Disease / Q000175:diagnosis* / Q000000981:diagnostic imaging; D006801:Humans; D011832:Radiation Injuries / Q000517:prevention & control; D014057:Tomography, X-Ray Computed / Q000009:adverse effects