Week 3 - Angiography

Question 1

Angiography

Answer 1

Opacification of blood vessels using the injection of iodine-based contrast medium

Question 2

Angiography process

Answer 2

• Contrast is introduced into a proximal artery
• rapid sequence of images required
• may need to remain in the hospital overnight because of the arterial cannulation (minimum lay flat for 6 hours)

Question 3

Subtraction Angiography

Answer 3

Take everything in the picture away and only keep the blood flow - visualise blood flow only

Question 4

Angiography Indications

Answer 4

To demonstrate acute or chronic disorders of the blood vessels
- atherosclerotic disease
- ischaemic disease
- dissection
- traumatic rupture
- chronic occlusions
- stenosis
- thrombus

Question 5

Angiography contradictions

Answer 5

• pregnancy
• allergy to contrast
• contrast - renal impairment
• contrast - unstable patient
• inability to lie flat
• recent barium procedure

Question 6

Angiography +ve

Answer 6

• Allows for selective catheterisation of specific blood vessels for improved assessment
• Therapeutic procedures may be performed immediately following a diagnostic angiogram