Prevalence of right-to-left atrial shunting in a healthy population: detection by Valsalva maneuver contrast echocardiography

Ultrasound Cardiography: Contrast Studies in Anatomy and Function

Raymond Gramiak, Pravin Shah, David H. Kramer · Radiology · 1969 · 458 citations

Medical Ultrasound, Heart Failure, Engineering +17

Cardiac catheterization and angiography

American Heart Journal · 1975 · 455 citations

Cardiac Catheterization, Vascular Image, Cardiovascular Disease +4

Contrast M-mode echocardiography in diagnosis of atrial septal defect in acyanotic patients.

G Kronik, J Slaný, H Moesslacher · Circulation · 1979 · 79 citations

Atrial Septal Defect, Contrast Echocardiography, Heart Failure +18

Cardiac Catheterization and Angiography

Martin J. Lipton · JAMA · 1981 · 68 citations

Balloon-tipped Catheterization, Cardiac Catheterization, Heart Failure +13

EFFECT OF NORMAL AND ABNORMAL CHANGES OF INTRATHORACIC PRESSURE ON EFFECTIVE RIGHT AND LEFT ATRIAL PRESSURES

David F. Opdyke, Gerhard A. Brecher · American Journal of Physiology-Legacy Content · 1950 · 34 citations

Heart Failure, Blood Pressure, Cardiac Mechanic +7