Cardiac Flashcards
Commonest cardiac tumour associated with valves
Papillary Fibroelastoma
Contra-indication to Adenosine Stress MRI (rhythm)
2nd or 3rd degree heart block,
Uncontrolled arrhythmia
Contra-indication to Adenosine Stress MRI (other)
Bronchospasm,
Systolic BP <90,
MI within 48hrs,
Severe/critical aortic stenosis
Amyloid cardiac enhancement pattern
Global endocardial enhancement
Sarcoid cardiac enhancement pattern
Epicardial or midwall delayed hyperenhancement
Ischaemic cardiomyopathy cardiac enhancement pattern
Subendocardial delayed hyperenhancement
HCM cardiac enhancement
Midwall enhancement at the junction between right and left ventricles
Normal thickness of pericardium
2mm. Thickened by pericarditis
Only vascular anomaly to run between oesophagus and trachea
Aberrant left pulmonary artery
Causes of posterior indentation of the oesophagus (3)
Right sided arch with aberrant left subclavian,
Left sided arch with aberrant right subclavian,
Double aortic arch
Where does the aortic arch commence
Posterior to manubriosternal joint, level of 2nd costal cartilage
Global ventricular hypokinesia associated with
Dilated cardiomyopathy
Acute myocarditis enhancement pattern
Epicardial or delayed midwall enhancement
Optimal time (in cardiac cycle) for imaging >70bpm
End systole
Optimal time (in cardiac cycle) for imaging <70bpm
End diastole
Reasons to terminate dobutamine stress MRI (BP)
BP >240/220
SBP falls by 40
Reasons to terminate dobutamine stress MRI (non BP)
Heart rate >85% of (200-age)
New persistent arrhythmia
New wall motion abnormality
Too symptomatic to continue
Truncus arteriosus associations (4)
Right sided arch
VSD
DiGeorge syndrome
CHARGE syndrome
Contra-indications to GTN (5)
SBP <100
HOCM
Sildenafil within 24-48hrs
Aortic stenosis
Profound anaemia
Dilated cardiomyopathy enhancement pattern
Septal midwall enhancement
Septum appearance in constrictive pericarditis
Can become flattened or even push towards left
Atrial thrombus
Atrial mass, low T1 & T2, non enhancing
Inter-arterial left main coronary artery
Often repaired even if no symptoms
Likely to cause symptoms (chest pain after exertion)
Cardiac anomaly associated with asplenia
tricuspid atresia
Benefit of retrograde gated cardiac CT
Provides functional info
