
Gamma Distortion
The Gamma distortion phantom is a quality control tool made of rigid PMMA for assessing geometric distortion and spatial resolution in gamma cameras used for nuclear medicine imaging. It consists of a series of 1mm diameter, 3mm deep holes arranged at an 80mm pitch.
Point-to-point measurement ensures accurate representation of distances in medical imaging, while the assessment of the point spread function (PSF) at various points across the field of view (FOV) determines spatial resolution and its uniformity. These evaluations are crucial for maintaining precision and reliability in medical imaging.