I. Blood Flow Regulation in Coronary Circulation.- 2. The Range of Normal Values for Coronary Flow Reserve and Lesion-Specific Physiological Measurements.- 3. Application of Noninvasive Doppler Echocardiographic Measurement of Coronary Flow Reserve.- 4. Noninvasive Methods for Evaluation of Coronary Flow Reserve - Methodological Considerations.- 5. Stimuli Testing Coronary Flow Reserve.- Reference List.