Visualization of the heart structure and cardiac blood flow for diagnostic evaluation or to guide cardiac procedures via techniques including ENDOSCOPY (cardiac endoscopy, sometimes refered to as cardioscopy), RADIONUCLIDE IMAGING; MAGNETIC RESONANCE IMAGING; TOMOGRAPHY; or ULTRASONOGRAPHY.

Synonyms: Technique, Cardiac Imaging, Cardiac Imaging Techniques, Technique, Intracardiac Imaging, Imaging Technique, Intracardiac, Techniques, Cardiac Imaging, Imaging Technique, Cardiac, Imaging Techniques, Cardiac, Intracardiac Imaging Technique, Techniques, Intracardiac Imaging, Cardiac Imaging Technique, Imaging Techniques, Intracardiac, Intracardiac Imaging Techniques