11 Questions
What is the biggest contributor to dead time in nuclear medicine imaging?
Single events
In nuclear medicine imaging, what is a scatter coincidence?
Events where a gamma ray photon scatters within the patient body before being detected
What is a random coincidence in nuclear medicine imaging?
Occurs when two single photons from two separate annihilations are detected within the CTW
What is the role of a capacitor?
Regulates electric current
What does 'random incident' refer to in the context of gamma ray detection?
Detection of two unassociated gamma rays in separate detectors
What does 'system sensitivity' refer to in the context of imaging systems?
Ability to accurately measure the emitted gamma rays by radioactive tracers
What does 'noise' refer to in the context of acquired data or images?
Unwanted variations in the acquired data or images
How does pitch change the amount of radiation a patient is exposed to during a radiopharmaceutical procedure?
It increases the amount of radiation exposure
What are Hounsfield Units used for in a CT study?
Expressing relative attenuation assigned to voxels in a CT study
What type of imaging does Magnetic Resonance Imaging (MRI) utilize?
Powerful magnets and radiofrequency pulses
What type of imaging does Computed Tomography (CT) employ?
X-rays and advanced computer technology
Test your knowledge of PET imaging coincidence events with this quiz. Questions cover topics such as prompt events, scatter coincidence, true coincidence, and random coincidence.
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