Cardiac Flashcards
what is the RA defined by?
IVC
what imp structures are in the RA?
- crista terminalis
- Eustachian valve
eustachian valve
-valve of IVC
chiari network
Eustachian valve (IVC) trabeculated appearance
coronary sinus route
AV groove –> RA
what defined right Vt?
moderator band
TV vs MV
TV papillary m inserts on septum. No fibrous conn btw TV and P
signs of LA enlargement
double density (direct) splaying carina (indir) walking man sign (indir)
walking man sign
pst displacement left main stem bronchus on lateral radiograph –> upside down V w/ intersection of right bronchus
MV
-papillary m inserts on lateral/pst walls and apex left Vt (not septum)
echogenic focus in LV
- calcified papillary m
- resolve by 3rd TM
- 13% ass w/ DS
lipomatous HTr interatrial septum
- dumbbell/bilobed, SPARES F.O.
- obese, elderly
- asyx (supraVt arryth)
- brown fat –> HOT on pet
multiple interatrial lipomas
TS
interatrial fatty lesions
- lipomatous HTr interatrial septum-dumbbell, spares f.o.
- lipoma- encapsulated, does not spare f.o
- both PET-HOT
interatrial lipoma
- encapsulated
- normal fat signal on MR
- pet hot
coronary cusps
R, L, non (pst)
right coronary branches
- conus (ant), 20-30% from aorta–> RVOT
- SA (pst)
- acute marginal–> RV free wall
- AVN-junction of av/iv
- PDA (65-80%)–> pst IV septum
- PLA–> pst LV
how often does RCA perfuse SA and AV node?
SA-60%
AV-90%
dominance
R (85%)-PDA, PLA from RCA
L (7%)-PDA, PLA, AVN from left CX
co (7%)-PDA from RCA, PLA from left CX
order of obtaining chamber views
- axial –> 2 chamber/vertical long axis –> 4 chamber view/horz long axis. –> short axis
- 3 chamber/LVOF/apical long axis view
dividing anomalies of coronary arteries
org, course, termination
benign anomalies of coronary artery
does not course btw aorta and pulmonary a
-retroaortic, prepulmonic, septal
anomalies of coronary arteries that are always malignany
arise from pulmonary artery
-ALCAPA (bland-white-garland syndrome) > ARCAPA
potentially malignant anomalies of coronary arteries
- LCA from RCS
- RCA from LCS
- LCx or LAD from RCS
- a from NCS