Table 3. Grades of Korean Clinical Imaging Guideline Recommendation.
| Grading | Content | Meaning |
|---|---|---|
| A | Recommended | This intervention (examination) has enough evidence to support desired effect, and therefore, is recommended |
| B | (Conditional) recommended | This intervention (examination) has intermediate to enough level of evidence to support desired effect |
| Provide intervention (examination) selectively, or for specific individuals based on expert's judgment | ||
| C | Not recommended | This intervention (examination) has enough evidence to support non-desired effect, and therefore, is not recommended (use of this examination is not recommended) |
| I | No recommendation | This intervention (examination) does not have enough evidence to either support or reject effectiveness, and needs further research |
| This intervention (examination) has very low level of certainty for desired effect, and decision based on recommendation grading has no meaning |
Adapted from Choi et al. Korean J Radiol 2017;18:208–216 (2)