SPECT QC Quiz

What is the primary purpose of using phantoms in SPECT imaging quality control?

• To diagnose patient conditions

• To test the performance of the imaging system

• To train medical personnel

• To enhance the image resolution

Which of the following is NOT a parameter typically adjusted during SPECT image acquisition?

• Energy window

• Pixel size

• Patient's weight

• Acquisition time

What is the main goal of attenuation correction in SPECT imaging?

• To increase the acquisition time

• To reduce the patient's exposure to radiation

• To improve image quality by compensating for tissue absorption

• To decrease the energy window

Which image reconstruction technique is commonly used in SPECT imaging?

• Back-projection

• Fourier transform

• Direct inversion

• Filtered back-projection

In SPECT imaging, what is the purpose of performing daily quality control checks?

• To ensure patient safety

• To comply with legal requirements

• To maintain the imaging system's performance

• To train new staff

Which of the following is a common phantom used in SPECT imaging quality control?

• The Alderson phantom

• The Hoffman brain phantom

• The Jaszczak phantom

• The Shepp-Logan phantom

What aspect of SPECT imaging does the Jaszczak phantom specifically test?

• Spatial resolution

• Contrast resolution

• Both A and B

• Neither A nor B

Which of the following is NOT a typical step in SPECT image reconstruction?

• Attenuation correction

• Scatter correction

• Motion correction

• Color correction

What is the significance of the energy window in SPECT imaging?

• It determines the size of the patient's dose.

• It defines the range of photon energies accepted.

• It adjusts the color of the final image.

• It changes the patient's position during scanning.

How does scatter correction improve SPECT image quality?

• By increasing the image contrast

• By reducing noise from photons scattered in the patient

• By shortening the acquisition time

• By enlarging the field of view