Calculated attenuation correction(uniform m)

Calculated attenuation correction(uniform m)

• The PET camera records the number of coincidence events occurring along a large number of lines of response (LORs).
• If m is a constant of known value, and you can measure the path distance through the attenuating medium (|x2-x1|) for each LOR, you can calculate the correction which needs to be applied to the number of measured photons in these LORs which will yield the actual number of photons at the source.

WEB Comments - brian@petnet.buffalo.edu