26 March 2025 : Clinical Research
Balancing Image Quality and Iodine Intake: Insights from CT Spectral Imaging of the Portal Vein
Linjie Huang ABCDEF 1, Shengchen Jiang CD 1, Fengqiu Ruan C 2, Liling Long
EG 1*
DOI: 10.12659/MSM.947391
Med Sci Monit 2025; 31:e947391
Table 1 Five-point scale for subjective evaluation of portal vein CT.
| Score | Sharpness of portal vein margins | Vessel contrast | Visibility |
|---|---|---|---|
| 5 | Very sharp | Excellent | 4-order branches and higher |
| 4 | Sharp | Very good | 3-order branches |
| 3 | Fairly sharp | Good | 2-order branches |
| 2 | Less sharp | Poor | 1-order branches |
| 1 | Blurry | Very poor | Only the stem visible |