Identify the type of radiographic noise produced in fast imaging systems, which results from too few x-ray photons interacting with the image receiver.

Question

Quizplus · Accepted Answer

Quantum mottle is the type of radiographic noise produced in fast imaging systems due to too few x-ray photons interacting with the image receiver, resulting in graininess or speckled appearance on the image. This can occur when the exposure factors are set too low or when the detector is too small for the anatomy being imaged. Film graininess (A) is a type of noise seen in traditional film radiography, structural mottle (C) is caused by anatomical structures and their natural variation in attenuation, scatter radiation (D) is the result of x-rays being deflected in different directions before reaching the image receptor, and shape distortion (E) occurs when the anatomy is not positioned correctly or the imaging equipment is not aligned properly.

Identify the Type of Radiographic Noise Produced in Fast Imaging