Question | Answer |
A-long | apical long-axis |
A-mode | amplitude mode |
A-late | (atrial) diastolic velocity peak or area |
A2C | apical 2 chamber |
A4C | apical 4 chamber |
AcT | acceleration time |
a dur | duration of pulmonary venous atrial reversal velocity |
A dur | duration of atrial filling velocity |
AF | atrial fibrillation |
A m | myocardial tissue late diastolic velocity |
AMVL | anterior mitral valve leaflet |
ant | anterior |
Ao | aortic or aorta |
AR | aortic regurgitation |
AS | aortic stenosis |
ASD | atrial septal defect |
ASH | asymmetrical septal hypertrophy |
ATVL | anterior tricuspid valve leaflet |
AV | atrioventricular |
AVA | aortic valve area |
AVR | aortic valve replacement |
BAV | balloon aortic valvuloplasty |
BP | blood pressure |
BSA | body surface area |
C-TGA | congenitally corrected transposition of the great arteries |
C (capital C) | chordae |
c (italized lower case c) | propagation velocity of sound in tissue |
CAD | coronary artery disease |
cath | cardiac catheterization |
CBV | catheter balloon valvuloplasty |
cm | centimeters |
C m (capital C subscript m) | specific heat of tissue |
cm/s | centimeters per second |
CO | cardiac output |
Cont eq | continuous equation valve area |
cos | cosine |
CS | coronary sinus |
CSA | cross sectional area |
CT | computed tomography |
CW | continuous wave |
Cx | circumflex coronary artery |
D | diameter |
dB | decibels |
DA | desending aorta |
dP/dt | rate of change in pressure over time |
dyne.s.cm-5 | units of resistance |
E | early diastolic peak velocity |
ECG | electrocardiogram |
echo | echocardiogram |
ED | end diastolic |
EDD | end-diastolic dimension |
EDV | end-diastolic volume |
EF | ejection fraction |
E m | myocardial tissue early diastolic velocity |
endo | endocardium |
epi | epicardium |
EPSS | E-point septal seperation |
ES | end-systole |
ESD | end-systolic dimension |
ESPVR | end-systolic pressure volume relationship |
ESV | end-systolic volume |
ETT | exercise treadmill test |
∆ƒ | frequency shift |
ƒ | frequency |
FL | false lumen |
F n (subscript n) | near field |
FN | false negative |
F₀ | resonance frequency |
FP | false positive |
F s (subscript s) | scattered frequency |
FSV | forward stroke volume |
F t | transmitted frequency |
fx | function |
HCM | hypertrophic cardiomyopathy |
HOCM | hypertrophic obstructive cardiomyopathy |
HPRF | high pulse repetition frequency |
HR | heart rate |
HV | hepatic vein |
I | intensity of ultrasound exposure |
IAS | interatrial septum |
ID | indicator dilution |
inf | inferior |
IV | intraveneous |
IVC | inferior vena cava |
IVCT | isovolumetric contraction time |
IVRT | isovolumetric relaxation time |
kHz | kilohertz |
L | length |
LA | left atrium |
LAA | left atrial appendage |
LAD | left anterior descending coronary artery |
LAE | left atrial enlargement |
lat | lateral |
LCC | left coronary cusp |
LLAT | left lateral |
LMCA | left main coronary artery |
LPA | left pulmonary artery |
LSPV | left superior pulmonary vein |
LV | left ventricle |
LV-EDP | left ventricle-end diastolic pressure |
LVE | left ventricular extension branch or left ventricular enlargement |
LVH | left ventricular hypertrophy |
LVI | left ventricular inflow |
LVID | left ventricular internal dimension |
LVO | left ventricular outflow |
LVOT | left ventricular outflow tract |
M | myxoma |
M-mode | motion display |
MAC | mitral annular calcification |
MB | moderator band |
MI | myocardial infarction |
MR | mitral regurgitation |
MRI | magnetic resonance imaging |
MS | mitral stenosis |
MV | mitral valve |
MVA | mitral valve area |
n | number of subjects |
NBTE | nonbacterial throbotic endocarditis |
NCC | noncoronary cusp |
∆P | pressure gradient |
P | pressure |
PA | pulmonary artery |
pAn | psuedoaneurysm |
PAP | pulmonary artery pressure |
PD | pulsed Doppler |
PDA | patent ductus arteriosus or posterior descending artery |
PE | pericardial effusion |
PEP | preejection period |
PET | positron-emission tomography |
PISA | proximal isovelocity surface area |
PLAX | parasternal long axis |
PM | papillary muscle |
PMVL | posterior mitral valve leaflet |
PR | pulmonary regurgitation |
PRF | pulse repetition frequency |
MVR | mitral valve replacement |
PRFR | peak rapid filling rate |
PS | pulmonic stenosis |
PSAX | parasternal short axis |
PTCA | percutaneous transluminal coronary angioplasy |
PV | pulmonary vein |
PV a | pulmonary venous atrial reversal velocity |
PV D (subscript D) | pulmonary venous peak diastolic velocity |
PV s | pulmonary venous peak systolic velocity |
PVC | premature ventricular contraction |
PWT | posterior wall thickness |
Q | volume flow rate |
Q p | pulmonic volume flow rate |
Q s | systemic volume flow rate |
r | ventricular radius or correlation coefficient |
RA | right atrium |
RAE | right atrium enlargement |
RAM | random access memory |
RAO | right anterior oblique |
RAP | right atrial pressure |
RCA | right coronary artery |
RCC | right coronary cusp |
Re | Reynolds number |
RF | regurgitation factor |
RJ | regurgitation jet |
R₀ | radius of microbubble |
ROA | regurgitant oriface area |
RPA | right pulmonary artery |
RSPV | right superior pulmonary vein |
RSV | regurgitant stroke volume |
RV | right ventricle |
RVE | right ventricular enlargement |
RVH | right ventricular hypertrophy |
RVI | right ventricular inflow |
RVO | right ventricular outflow |
RVOT | right ventricular outflow tract |
SAM | systolic anterior motion |
SC | subcostal |
SEE | standard error of the estimate |
SPPA | spatial peak pulse average |
SPTA | spatial peak temporal average |
SSN | suprasternal notch |
ST | septal thickness |
STJ | sinotubular junction |
STVL | septal tricuspid valve leaflet |
SV | stroke volume or sample volume |
SVC | superior vena cava |
SWMA | segmental wall motion abnormality |
Ƭ½ | pressure half time |
T | thrombus |
TD | thermodilution |
TEE | transesophageal echocardiography |
TGA | transposition of the great arteries |
TGC | time gain compensation |
TL | true lumen |
TN | true negative |
TOF | tetralogy of Fallot |
TP | true positive |
TPV | time to peak velocity |
TR | tricuspid regurgitation |
TS | tricuspid stenosis |
TSV | total stroke volume |
TTE | transthoracic echocardiography |
TV | tricuspid valve |
v | velocity |
V | volume or velocity |
VAS | ventriculo-atrial septum |
V max | maximum velocity |
VSD | ventricular septal defect |
VTI | velocity time integral |
WPW | Wolff Parkinson White syndrome |
Z | acoustic impedance |