Radiopharmaceuticals and PET Tracers

What is the purpose of a laminar down-flow cabinet in a radiopharmaceutical preparation laboratory?

To maintain sterile conditions

What is the half-life of technetium-94m?

50 minutes

What is the purpose of shielded syringes in a radiopharmaceutical preparation laboratory?

To transfer components between sterile vials

What is the benefit of using automated synthesis devices in PET radiopharmaceutical preparation?

Shortened preparation time Signup and view all the answers

What is the purpose of normal sterile procedures in a radiopharmaceutical preparation laboratory?

To maintain a clean environment Signup and view all the answers

What is the advantage of using 94mTc sestamibi in tumour imaging studies?

PET imaging capabilities Signup and view all the answers

What is the purpose of testing for radionuclide purity in radiopharmaceuticals quality control?

To ensure the absence of 99Mo contamination, which would increase radiation dose to the patient Signup and view all the answers

What is the function of the radiopharmaceutical in planar imaging?

To concentrate in the organ or tissues of interest Signup and view all the answers

What is the purpose of using an automated synthesis device for PET tracers' production?

To reduce radiation exposure to the staff Signup and view all the answers

What is the purpose of testing for radiochemical purity in radiopharmaceuticals quality control?

To ensure the absence of free pertechnetate in a labelled 99mTc compound Signup and view all the answers

What is the purpose of testing the response of the radionuclide calibrator in radiopharmaceuticals quality control?

To evaluate the accuracy of the dose calibrator Signup and view all the answers

What is the purpose of using a dose calibrator in radiopharmaceuticals quality control?

To measure the activity of the radiopharmaceutical Signup and view all the answers

What is a major limitation of the current approach to gamma ray detection?

Gamma photons that do not pass through the collimator's holes are absorbed Signup and view all the answers

What is the main purpose of the collimator in gamma ray detection?

To map gamma rays onto the scintillator Signup and view all the answers

What is a characteristic of parallel hole collimators?

They have hexagonal structured holes in a close-packed hexagonal array Signup and view all the answers

What factors influence the choice of collimator for gamma ray detection?

The dimension of the field of view (FOV), targeted areas' dimensions, and the desired level of sensitivity and spatial resolution Signup and view all the answers

What is the purpose of the scintillator in gamma ray detection?

To convert gamma photons into visible light Signup and view all the answers

What is a potential way to improve the gamma imaging outcome?

Improving the ability of the gamma camera to maximise the detection of primary gamma photons Signup and view all the answers