IR

Question 1

Describe Seldinger technique needle

Answer 1

Question 2

Compare and contrast seldinger vs modified seldinger technique

Answer 2

Question 3

Compare guide wires

Answer 3

Hydrophilic - placement of devices , stays wet longer
Amplatz - stiff
Roadrunner - longer

Question 4

Compare catheters

Answer 4

Non - selective:

Pigtail - large end hole multiple side holes - large vessels > 15 mm diameter

Straight- also many holes- vessel too small for pigtail but good flow needed eg. Iliac arteries

Selective:

Cobra - visceral and peripheral angiography - C1-C3

Headhunter - forward facing curve with and without side holes - head vessels

Sidewinder - visceral angiography - S1-S3- formed with aortic turn in arch

Mane - Used for tortuous vessels of neck - mainly left side

Question 5

What are the purpose of vascular introducer sheaths

Answer 5

Provide a less traumatic arterial or venous access route - good when more than 1 catheter needed, balloon angioplasty

Consists of - sheath, dilator and hub, sidearm for flushing, 3 way tap

Aero flex - reinforced sheath