24 June 2021 : Clinical Research
An Individualized Contrast-Enhanced Liver Computed Tomography Imaging Protocol Based on Body Mass Index in 126 Patients Seen for Liver Cirrhosis
Jian Jiang1ABCEG, Maowei Zhang1BD, Yuan Ji1BCDF, Chunfeng Li1CD, Xin Fang1BF, Shuyuan Zhang1B, Wei Wang2CF, Lijun Wang1EF, Ailian Liu1ACEF*DOI: 10.12659/MSM.932109
Med Sci Monit 2021; 27:e932109
Table 2 Grading scale for subjective image quality analysis of CT examinations.
| Qualitative grading scale | Image noise | Vessel sharpness | Beam-hardening artifact | Reconstruction artifact | Overall image quality |
|---|---|---|---|---|---|
| 1 | Unacceptable noise | Blurry border | Many streak artifacts | Many reconstruction artifacts | Unacceptable |
| 2 | Above-average noise | Ill-defined border | Moderate streak artifacts | Moderate reconstruction artifacts | Suboptimal |
| 3 | Average noise | Defined Border | Minimum streak artifacts | Minimum reconstruction artifacts | Acceptable |
| 4 | Less-than-average noise | Clearly defined border | No perceptible streak artifacts | No perceptible reconstruction artifacts | Good |
| 5 | Minimum or no noise | Sharply defined border | No perceptible streak artifacts | No perceptible reconstruction artifacts | Superior |
| The scores of 3–5 for overall image quality were acceptable for diagnosis of liver disease. | |||||