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What attenuation correction method assumes that all material in a 3D image matrix has the same attenuation coefficient?

The circumferential profile technique used to quantitate SPECT myocardial perfusion imaging studies is performed on what set of tomographic slices?

Given adequate count statistics, increasing matrix size results in:

The slice labeled C is which of the following:

What is the pixel size when using a 128 x 128 matrix with a 52 cm FOV after applying a 1.5 zoom?

Which of the following statements about the effect of the filter cutoff frequency on an image is true?

Which of the following techniques is used to eliminate the “star” effect created during tomographic reconstruction?

An artifact that occurs when the subject being imaged moves out of the field of view during a SPECT acquisition:

The “star” artifact in image reconstruction is most likely created by:

Which of the following cutoff frequencies would preserve the majority of the signal when applying a Hann filter?