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CT and PET scans demonstrate different aspects of disease indicating regions with ___________.

Two photons arising from the same annihilation event and detected by two detectors within the coincidence time-window are __________.

A substance used to enhance the visibility of a structure or fluid in the body for medical imaging  is called _________.

Which of the following is TRUE for PET/MRI in pediatric patients?

Truncation is a source of streaking artifacts at the edge of the CT image. The presence of streaking artifacts:

A positron has the same mass as an electron and an electric charge of __________.

Patients with malignant melanoma should be scanned with their arms __________.

Which of the following is the preferred contrast agent when a bowel obstruction is suspected?

Which of the following scintillators commonly used in PET imaging has the highest stopping power?

The PET system capacity to distinguish between two points after image reconstruction is called __________.