Table 3.

Qualitative evaluation of tissue specimen imaging with a four-point scale scoring system

Evaluation indicators	Scoring criteria (four-point scale)
	1	2	3	4
Artefact size	Small amount of artefact	Median amount of artefact	Large amount of artefact	Extensive artefact
Structure distortion adjacent to the metal	Slight distortion	Moderate distortion	Severe distortion	Extensive distortion
Image blurring	No blurring	Barely perceivable blurring	Slight blurring	Moderate blurring
Visualization of the bone marrow, cortex and soft tissues	Good visualization	Moderate visualization	Poor visualization	Very poor visualization
Overall image quality	Very good image quality; high diagnostic performance	Good image quality; medium diagnostic performance	Acceptable image quality; low diagnostic performance	Poor image quality; poor diagnostic performance

The images with the conventional (product) and slice encoding for metal artefact correction with view angle tilting sequence technique between 1.5 and 3.0 T were assessed by three readers in blinded reads for metal artefact reduction.