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, Imaging Technique, Intracardiac, Technique, Intracardiac Imaging, Imaging Technique, Cardiac, Techniques, Cardiac Imaging, Imaging Techniques, Cardiac, Intracardiac Imaging Technique, Techniques, Intracardiac Imaging, Cardiac Imaging Technique, Intracardiac Imaging Techniques, Imaging Techniques, Intracardiac