AV Atrioventricular PCW Pulmonary Capillary Wedge (pressure)
  AVA Aortic Valve Area PCI Percutaneous Coronary Intervention
  A - H Atrial-His Interval PD Posterior Descending (a coronary artery)
  AM Acute Marginal (a coronary artery) PDA Patent Ductus Arteriosus
  Ao Aorta PEJ Pre-Ejection Period
  AoR Aortic Root PLA Posterior Lateral Artery (a coronary artery)
  AP Anterior - Posterior Post Posterior or following
  AS Aortic Stenosis P-P Interval between P waves
  ASD Atrial Septal Defect P-R Interval between P wave and R wave
  ASH Asymmetric Septal Hypertrophy PRF Pulse Repitition Frequency
  AVO2 Arteriovenous Oxygen Difference    
  BSA Body Surface Area PTCA Percutaneous Transluminal Coronary Angioplasty
  CABG Coronary Artery Bypass Graft PV Pulmonary Valve
  CAD Coronary Artery Disease PVR Pulmonary Vascular Resistance
  CB Conus Branch (a coronary artery) PW Pulsed Wave
  CFI Color Flow Imaging QRS Electrical waves producing systole
  CHF Congestive Heart Failure Qs Systemic Blood Flow
  CI Cardiac Index Q-T Interval between the Q and T wave
  cm Centimeter Q-Tc Q-T interval Corrected for heart rate
  CM Cardiomyopathy RA Right Atrium
  CO Cardiac Output RAO Right Anterior Oblique
  CVA Cerebrovascular Accident RBBB Right Bundle Branch Block
  CW Continuous Wave RCA Right Coronary Artery
  CX Circumflex (a coronary artery) R-R Interval of an R wave to the next R wave
  Diag Diagonal (a coronary artery) RV Right Ventricle
  DFP Diagnostic Filling Period RVVO Right Ventricular Volume Overload
  dp/dt A derivitave of pressure over time SA Sino-Atrial Node
  ECG Electrocardiogram SBF Systemic Blood Flow
  EDD End Diastolic Dimension SEP Systolic Ejection Period
  EDP End Diastolic Pressure Sup Superior
  EDV End Diastolic Volume Sup Supine
  EF Ejection Fraction SV Stroke Volume
  EKG Electrocardiogram SVC Superior Vena Cava
  EP Electrophysiology SVR Systemic Vascular Resistance
  ESD End Systolic Dimension Sys Systole
  ESV End Diastolic Volume TI Tricuspid Insufficiency
  HTN Hypertension TIA Transient Ischemic Attack
  Hgb Hemoglobin TPR Total Pulmonary Vascular Resistance
  HOCM Hypertrophic Obstructive Cardiomyopathy TR Tricuspid Regurgitation
  HR Heart Rate TSR Total Systemic Vascular Resistance
  Hz Hertz TTE Trans-Thoracic Echocardiography
  IMA Internal Mammary Artery TV Tricuspid Valve
  IVRT Isovolumic Relaxation Time VCF Circumfrential Fiber Shortening Velocity
  IVC Interior Vena Cava Vol % Volumes Percent
  JVP Jugular Venous Pulse VSD Ventricular Septal Defect
  Kg Kilogram VO2 Oxygen Consumption
  LA Left Atrium    
  LAA Left Atrial Appendage    
  LAD Left Anterior Descending (a coronary)    
  LAE Left Atrial Enlargement    
  LAO Left Anterior Oblique    
  LAP Left Arterial Pressure    
  Lat Lateral    
  LBBB Left Bundle Branch Block    
  LCA Left Coronary Artery    
  LLD Left Lateral Decubitous    
  L/min Liters per minute    
  LV Left Ventricle    
  LVEDP Left Ventricular End Diastolic Pressure    
  LVET Left Ventricular Ejection Time    
  LVH Left Ventricular Hypertrophy    
  MI Myocardial Infarction    
  mm Millimeters    
  mmHg Millimeters of Mercury    
  mm/sec Millimeters per Second    
  MR Mitral Regurgitation    
  ms Millisecond    
  MS Mitral Stenosis    
  MV Mitral Valve    
  MVA Mitral Valve Area    
  OM Obtuse Marginal (a coronary artery)    
  PA Pulmonary Artery    
  PAW Pulmonary Arterial Wedge (~ LAP)    
  PBF Pulmonary Blood Flow    
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