Parasternal View Powerpoint Flashcards
4 types of Doppler
Color flow Dopper, Pulsed Wave (PW) doppler, Continuous Wave (CW) doppler, Tissue Doppler
Don’t confuse tissue colorization with color flow Doppler
tissue colorization just changes the color of the tissue so that you can detect variations more easily
M-mode stands for
motion mode
EKG leads go where
Left upper chest
Right upper chest
Left or right lower chest
PLAX view, index is towards what time (clock)
10 o clock!
For M-mode at the AO level, the cursor is placed so it transects…
RV
AO
LA
In the M-mode measurement at AO, end systole for the left atrium is the largest opening that you can measure. In a separate M-mode measurement for LVESD or “left ventricular end systolic diameter” you are going to measure at the
smallest dimension.
In the M-mode measurement for the LV, select your package and begin measuring but make sure you are over a
Q wave! (EXCEPT FOR ONE, and that is gonna be the LVIDs aka LVESD (left ventricular inner dimension systole or left ventricular end systolic diameter - same thing). This measurement is taken at the smallest dimension. It should occur right after the Q wave.
Define Ejection Fraction
The fraction or % of LV diastolic volume that is ejected in systole. Volumes are calculated using diameter measurements and can be inaccurate.
Define Fractional shortening
This is a rough measurement of LV systolic fx using LV dimensions rather than volumes. Can reduce magnification of error.
Define Stroke volume
The volume of blood ejected with each heart beat and is reported in cc or ml (the same thing)
Define cardiac output
The volume of blood pumped by the heart per minute and is reported in L/min (liters per minute).
Cardiac Output equation
SV x BPM (stroke volume multiplied by beats per minute)
Answer is in Liters per minute
LVEDD and LVESD when measuring at the LV (3rd M-mode viewing), should be measured
ON THE SAME BEAT
In LV M-mode measurement, to measure for the chordae tendineae, measure right outside the
MV valve leaflets.