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Study Notes - Cardiology > Radiology > Flashcards

Flashcards in Radiology Deck (10):
1

Imaging Modalities used to view the heart? (6)

CXR
Angiography
Echocardiography
CT
MRI
Nuclear Cardiology

2

3 advantages of x-rays and 2 disadvantages

Advantages:
Easy to do
Immediately available
Answers available soon
Disadvantages:
Radiation
Non-specific sometimes

3

Cardiothoracic ratio (CTR)?

The ratio of the maximum diameter of the heart divided by the maximum diameter of the diaphragm

4

What should the normal CTR be?

Less than or equal to 50%

5

When is heart size exaggerated on CXRs?

When the AP projection is poorly inspired rotated

6

Advantages (4) and disadvantages (5) of angiography?

Advantages:
Excellent coronary arterial depiction
Assess anomalies
assess coronary plaques/ stenosis
Assess stents/ CABGs

Disadvantages:
Radiation
Invasive
Complications
May need admissions
Contrast allergy/ nephropathy

7

Advantages (5) and disadvantages (3) of Echocardiography?

Advantages:
Immediately available
Functional assessment of the heart
Valvular assessment
Chamber assessment
No radiation

Disadvantages:
Operator dependant
Patient dependant
Incomplete cardiac assessment

8

Advantages (5) and Disadvantages (4) of Cardiac CT following IV contrast?

Advantages:
excellent cardiac anatomy depiction
Non-invasive coronary artery assessment
Functional assessment
Chamber assessment
Look at vessels and lungs

Disadvantages:
Radiation dose
Resolution still slightly less than catheter angiography
Potential for contrast allergy/ nephropathy
Need special CT equipment/ expertise

9

Cardiac MRI advantages (5) and disadvantages (5)

Advantages:
No radiation
Excellent soft tissue resolution
Anatomical assessment
Gold standard
Functional assessment

Disadvantages:
Long imaging times
Claustrophobia
MRI contraindications
Need special MRI equipment / expertise
Not very useful for coronary arteries at present

10

What is nuclear cardiology normally used for?

To determine the impact of coronary artery disease on regional myocardial perfusion