Segmentation results can be adversely affected by which of the following phenome
ID: 3680790 • Letter: S
Question
Segmentation results can be adversely affected by which of the following phenomena?
a. Partial volume effects, which is an artefact due to the anatomy of the patient not being fully imaged due the small size of the scanning workspace.
b. Partial volume effects, which is an artifact that occurs where multiple tissue types contribute to a single pixel, resulting in a blurring of intensity across boundaries.
c. Inhomogeneity artefacts, which is a shading effect in an image caused by spatial variations of the static magnetic field that entail variations in the Larmor frequency.
d. Statements a and c both describe phenomena that can affect segmentation.
e. Statements b and c both describe phenomena that can affect segmentation.
Explanation / Answer
b. Partial volume effects, which is an artifact that occurs where multiple tissue types contribute to a single pixel, resulting in a blurring of intensity across boundaries.