Cardiac MR Flashcards
What is late GAD used to show?
Fibrosis or scarring of myocardium
Features of HOCM
Asymmetric septal hypertrophy (ASH) typically at the basal interventricular septum
Systolic Anterior Motion of mitral valve (SAM)
Features of cardiac amyloid on MRI
Diffuse SUB-ENDOCARDIAL heterogenous increased signal on late GAD.
Intra ATRIAL septal thickening
Diffuse low T1 and T2 myocardial signal.
Sarcoidosis cardiac MR features
Late GAD images - mixed SUB EPICARDIAL sparing the sub-endocardium.
Inter VENTRICULAR septal hypertrophy.
Global hypokinesis.
Myocarditis cardiac MR features?
High T2 signal - oedema
Late gad enhancment means irreversible myocardial necrosis.
What are the two stress agents for cardiac stress test?
Adenosine and Dobutamine
Don’t use adenosine in asthmatics
Myocardial infarction MRI findings? Acute and Old
Acute - high T2 signal (oedema) in a territory. Limited enhancement in ischaemic territory.
Old - Focal late gadolinium enhancement in subendocardial or transmural
Typical location for cardiac lymphoma?
Right atrium
Variable signal intensity and enhancement
Causes of restrictive cardiomyopathy?
SASH
Sarcoid
Amyloid
Scleroderma
Haemochromatosis
Echo shows isolated diastolic dysfunction. What type of cardiomyopathy is likely?
Restrictive cardiomyopathy.
Echo shows isolated systolic dysfunction. What is the likely type of cardiomyopathy?
Dilated cardiomyopathy
What are the types of cardiomyopathy?
Restrictive
Dilated
Hypertrophic
Arrhythmogenic right ventricular
How does arrhythmogenic right ventricular cardiomyopathy typically present?
Palpitations, syncope, cardiac arrest. Typically related to exertion.
MRI findings for arrhythmogenic right ventricular cardiomyopathy.
Regional right ventricular dyskinesia
Fatty or fibrofatty infiltration of the right ventricle wall
What type of cardiomyopathy does haemochromatosis cause?
Restrictive cardiomyopathy - iron overload
Diastolic dysfunction
