C1: Parasternal views (anatomy) Flashcards
where does the bifurcation of the main PA occur and where to the LPA and RPA travel?
bifurcation is superior to the top of the LA
LPA arches backwards towards the L lung
RPA travels posterior to the Ascend AO and SVC to the R lung
when do the coronary arteries fill and where to they originate?
diastole
originate at the AO behind the R and L coronary cusps of the AO
where does the RCA travel?
to the R and posterior, along the AV sulcus
which 2 vessels does it RCA give rise to?
R marginal A
posterior descending artery which travels posterior to the IV sulcus
which 2 vessels does it LMCA give rise to?
left anterior descending A
circumflex A
another name for the posterior wall of the LV
infralateral wall
which leaflets of the TV are seen with the RVIT view?
the anterior leaflet
AND
the posterior OR septal leaflet….
if you see the LV then its the septal leaflet, if you dont, then its the posterior leaflet
which cusp of the PV is not seen on US?
the anterior cusp
what are the levels of the PSAX images/sweeps?
PA/Pvalve lvl base of the heart (AO valve lvl) MV lvl LV base (chordae lvl) LV base (pap) LV apex
for the PSAX PA lvl which is the R and L PA?
opposite to the PLAX RVOT
in the PSAX Base of the heart view (AO valve) which leaflets of the TV are we seeing?
septal and anterior
(septal is always medial)…. see image on pg 31 of notes
how do you know if your on axis when scanning PSAX MV?
the distance between the PMV leaflet and the posterior wall should be equal all around
at what level do we look at wall motion when scanning in the PSAX view?
LV base (chordae)…. this view is the most superior of the LV views
why dont we asses wall motion at the MV lvl?
the annulus is stiff and doesnt contract well
at what level (in PSAX) do we see all walls of the LV simultaneously?
at Mid (pap) level
