PET/CT Principles and Applications — MCQs

Which radiopharmaceutical is commonly used in positron emission tomography (PET) imaging?

Which of the following investigations work on the same principle?

A lady presented with a 4 cm tumor in the left parietal lobe for which she underwent surgery and radiotherapy. After 3 months she presented with headache and vomiting. Which of the following would characterize the lesion in the patient?

Investigation of choice for vascular ring around airway:

Investigation of choice for leptomeningeal carcinomatosis:

Which common tracer in PET is usually administered in the form of a glucose sugar?

Distant bone metastases can be best detected by which of the following imaging techniques?

Statement 1 - A 59-year-old patient presents with flaccid bullae. Histopathology shows a suprabasal acantholytic split. Statement 2 - The row of tombstones appearance is diagnostic of Pemphigus vulgaris.

In designing a clinical protocol for PSMA PET imaging in prostate cancer, which combination of factors would provide optimal image quality while minimizing radiation exposure?

A patient with treated breast cancer shows a liver lesion on CT. FDG-PET shows SUVmax of 2.8 in the lesion. Follow-up scan after 3 months shows increase in size but SUVmax decreased to 1.9. What is the most likely explanation?