Table 2.
Sore | Perceived signal-to-noise ratio | Image contrast* | Image sharpness | Identification of hippocampal layer structure | Artifacts disturbing evaluation | Overall image quality |
---|---|---|---|---|---|---|
1 | Too noisy | One of the structures is not separated. | Poor | Obscure | Severe | Poor |
2 | Noise has an adverse effect on interpretation | All of the structures are separated, but the contrast is weak. | Fair | Partially identified | Moderate | Fair |
3 | No adverse effect for interpretation | All of the structures are mostly separated. | Good | Mostly identified | Mild | Good |
4 | Little or no noticeable noise | All of the structures are clearly separated. | Excellent | Entirely identified | Little or none | Excellent |
Differentiation between cerebral spinal fluid (CSF), cerebral cortex, white matter, and basal ganglia.