Author: Anonymous

A source is reading 463 cps in the well counter. The background is 182 cpm. What is the net count rate in cpm? 

How frequently is this QC test performed on SPECT systems? 

Each of the following contribute to background in PET imaging except: 

Knowledge of a PET tomograph’s spatial resolution is necessary in order to determine

Which of the following radiology specific network systems includes patient registration, scheduling of examinations, patient workflow and resource management, patient and study tracking, reporting, and billing? 

How does an increased mAs impact patient radiation dose? 

Small objects and sharp edges (demonstrating greatest contrast) are represented by: 

A technologist is performing QC on a dose calibrator. He measures a standard source of Co57, Cs-137, and Co-60 three times each. For each radionuclide, the readings are averaged and compared to the calculated expected activity. The QC test the technologist is performing is: 

There are two things that you must watch/correct for when using a pinhole collimator. What are they? (select all that apply)

Conversion of 2D projections from the spatial domain to the spatial frequency domain is accomplished by the _____________.