where T is the duration of the dynamic acquisition.
Therefore, dynamic acquisition during expiration must be used whenever the patient can follow instructions [73].
Dynamic acquisition started about 2 min after the injection in list mode.
The lack of dynamic acquisition in the uptake phase implies poor knowledge of the radionuclide behaviour immediately after administration.
The study protocol is a planar dynamic acquisition of 132 images centered at the patients' kidneys, started at the bolus injection, and lasting 35 min.
We confirmed that 11C-4DST uptand andistributionon in the tumor was almost fixed 15 min after 11C-4DST administration in a preliminary dynamic acquisition study.
Using a dynamic acquisition protocol, it was possible to create time-reduced images for any acquisition time shorter than the acquisition time of our current protocol.
The dynamic acquisition consisted of 11 frames acquired over 3 min with 4 × 5-s, 2 × 10-s, and 4 × 30-s frames.
Cook and co-workers studied quantitative [18F]fluoride PET in a dynamic acquisition setting [34] and could, therefore, also calculate kinetic parameters of skeletal fluoride uptake.
After dynamic acquisition of images every 30 s for 25 min, whole body static images in anterior projection at 1,6 and 24 hours were acquired, previous sedation.
An 8-min dynamic acquisition (8 × 1 min frames) centered on the pelvis was started immediately after intravenous injection of 18F-choline (3-3.5 MBq/kg).
