cardiac

Question 1

pulse sequence is?

Answer 1

pattern of RF pulses and gradients producing an MR image

Question 2

black-blood sequence?

Answer 2

spin echo
little metal artifact, but longer acquisition times
high res - anatomy of <3 and vessels

Question 3

gradient echo in cardiac imaging

Answer 3

fast images, higher susceptibility to metal artifact
bright blood sequences usually
used for function, flow, vavles, perfusion and DGE

Question 4

SSFP sequence famile

Answer 4

cine cardiac MR images - modified GRE with excellent myocardium-blood contrast
faster acquisition but very dependent on magnetic homogeneity

Question 5

cardiac MR inversion recovery sequence

Answer 5

used to null signal from tissues in order to accentuate surrounding path (ie; null SI from normal myocardium during delayed post gad to accentuate abnormal late enhancement)

Question 6

patterns of gad enhancement in cardiac?

Answer 6

midmyocardiac, subepicardial, subendocardial

Question 7

what disease need later gad E+?

Answer 7

infarction, myocarditis, sarcoid, amyloid, cardiomyopathies (wall fibrosis)

Question 8

myocarditis enhancement?

Answer 8

patchy mid-myocardial, +/- mocal subepicardial

Question 9

cardiac sarcoid LGE pattern?

Answer 9

matchy mid myocardial