PACS

Question 1

What are the ten advantages of PACS?

Answer 1

No images lost, easily retrieved, easy comparison, accessible 24 7, multilocation viewing, correctly reside, post processing manipulation, cost, time saving, centralised teleradiology.

Question 2

What are the disadvantages of PACs?

Answer 2

Expensive, dedicated maintenance programme, no fall back position, training of users

Question 3

What are the advantages of PSP over analogue?

Answer 3

More linear response curve, greater latitude of exposure, decreases chance of repeat imaging. Less spatial resolution but higher contrast resolution

Question 4

Advantages of direct DR

Answer 4

Increased spatial and contrast resolution. Better quantitative efficiency. No manual processing of plates.

Question 5

What are the minimum requirements for a screen?

Answer 5

3mp (for spatial resolution), 700cd/m, greyscale, 256 linear greyscale (DICOM 14 compliant) 10 bit depth (for contrast resolution)