MRI 😊 Flashcards

1
Q

An interstitial inflammatory reaction that can lead to severe induration, contracture of the extremities, fibrosis of internal organs and death as result GBCA exposure

A

Nephrogenic systemic fibrosis

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2
Q

Contrast agent used in CMR imaging

A

GBCAs - gadolinium-based contrast agents

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3
Q

This hypertrphic segment is often missed in echocardigraphy compared to CMR

A

Basal anterolateral wall

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4
Q

It has an advantage over Echo of assessing the reduction in septal thickness from surgical myectomy or alcohol septal ablation

A

CMR

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5
Q

Has a predisposition toward ventricular arrhythmia that precedes overt morphologic abnormalties and even histologic substrate

A

ARVC - arrhythmogenic right ventricular cardiomyopathy

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6
Q

3 main morphologic components of myocarditis

A
  1. myocardial eddma by T2 weighted imaging
  2. regional hyperemia and capillary leak by early gadolinium enhancement ratio
  3. myocardial necrosis or fobrosis by LGE imaging
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7
Q

involvement of subepicardium and midmyocardium of the inferolateral wall myocarditis is associated with this type of virus

A

Parvovirus

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8
Q

Septal wall myocarditis is associated with this type of virus

A

Herpesvirus 6

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9
Q

Tissue edema, noncaseating granulomatous infiltration and patchy myocardial fibrosis in CMR

A

Cardiac sarcoidosis

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10
Q

Circumferential pattern of LGE involving the LV and even thr RV subendocardium in CMR

A

Cardiac amyloidosis

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11
Q

T2 less than 20msec in a patient with thalassemia major

A

Iron overload cardiomyopathy

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12
Q

Myocarditis caused by Trypanozoma cruzi

A

Chagas disease

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13
Q

A diastolic noncompacted to compacted thickness ratio of more than 2.3 measured in long axis view

A

LV noncompaction

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14
Q

Characterized by a transient contractile dysfunction of apex, caused by elevated catecholamines from severe emotional or physical stress

A

Trasient LV apical ballooning syndrome or Takotsubo cardiomyopathy

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15
Q

Endomyocardial disease considered as the result of direct toxic effects of eosinophils on the myocardium

A

Endomyocardial fibrosis AND Loeffler endocarditis

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16
Q

Hallmark of Loeffler endocarditis

A

Hypereosinophilia

17
Q

It is the current test of choice in differentiating constrictive perocarditis from restrictive cardiomyopathy, based on assessing oerocardial thickness and comstrictive physiology from pericardial disease and the pattern of any myocardial infiltation from restrictive cardiomyopathy

A

CMR

18
Q

Provides information regarding cellular metabolism

A

Magnetic resonance spectroscopy

19
Q

MRI is based on the abundance of this ion in humans

A

Hydrogen

20
Q

A radiofrequency pulse can tip the nuclear spins away from the z axis, which leaves the 1H nuclear magnetic moments processing at a characteristic frequency

A

Larmor frequency

21
Q

Used for morphology of cardiac chambers, vascular structures, perocardium and imaging of fat

A

T1 weighted FSE

22
Q

Used for imaging of myocardial edema

A

T2 weighted FSE with fat suppressed

23
Q

Positive myocardial edema and normal LGE mapping in CMR

A

Acute myocardial stunning

24
Q

Subendocardial or transmural LGE in coronary distribution

A

Acute myocardial infarction

25
Q

Thinned subendocardial or transmural LGE in a coronary distribution

A

Chronic myocardial infraction

26
Q

Midwall LGE often in the septum

A

Idiopathic dilated cardiomyopathy