Nuclear Medicine: Quality Control and Assurance

What does the term 'clinically' refer to in the context of imaging?

The accurate portrayal of true organ shape

What is the definition of sensitivity in the context of QC?

The ability to detect ionizing events in a sodium iodide crystal

What is the purpose of the Jaszczak SPECT Phantom?

To provide consistent performance information for any SPECT or PET system

What is the primary purpose of quality control testing in nuclear medicine?

To ensure patient safety and diagnostic accuracy Signup and view all the answers

What can be performed along with the resolution assessment?

Spatial linearity assessment Signup and view all the answers

What is one of the uses of the Jaszczak SPECT Phantom in SPECT QC?

To perform routine quality assurance and control Signup and view all the answers

What is the recommended frequency of the field of uniformity test for a gamma camera?

Daily Signup and view all the answers

What is the term for a system designed to identify problems, propose solutions, and monitor results to achieve the desired level of performance?

Quality assurance Signup and view all the answers

Which regulator agency is responsible for ensuring quality control testing in Saudi Arabia?

Both A and B Signup and view all the answers

What is the primary focus of quality control in nuclear medicine?

To identify equipment problems Signup and view all the answers

What is the purpose of quality assurance in nuclear medicine?

To ensure patient safety and diagnostic accuracy Signup and view all the answers

What is the purpose of Field Uniformity in a scintillation camera?

To produce accurate images of radionuclide distribution in patients Signup and view all the answers

How often is the sensitivity of a scintillation camera tested?

Daily and Semiannually Signup and view all the answers

What is the purpose of using a flood source in Field Uniformity testing?

To provide a uniform distribution of photons over the detector Signup and view all the answers

What is the minimum distance required to ensure uniform irradiation of the camera's field of view during Field Uniformity testing?

2 meters Signup and view all the answers

What is the typical range of counts acquired during routine Field Uniformity testing?

5 to 20 million counts Signup and view all the answers

What is the first step in analyzing Field Uniformity images?

Visually inspect the image for nonuniformities Signup and view all the answers

What is the acceptable percentage change in sensitivity from the previous value?

± 5-10% Signup and view all the answers

Why do many clinics evaluate uniformity with the collimators on?

To test both the detector and the collimation Signup and view all the answers

What is spatial resolution in a scintillation camera?

Ability to reproduce small differences in radionuclide concentration Signup and view all the answers

How can spatial resolution be tested?

Either intrinsically or extrinsically Signup and view all the answers

What is the purpose of using a four-quadrant bar pattern in quality control?

To test spatial resolution Signup and view all the answers

What is spatial linearity in a scintillation camera?

Ability to produce a uniform image with straight lines Signup and view all the answers