Radiation Dose Calculation Reference Data Skill
Provides reference values and calculation models for radiation doses in medical imaging examinations.
Core Functions
调用 -> 返回辐射剂量参考数据
Common Examination Radiation Doses
CT Examinations (Unit: mSv)
| Body Part |
Dose |
| Head CT |
2 |
| Chest CT |
7 |
| Abdominal CT |
8 |
| Pelvic CT |
6 |
| Spine CT |
6 |
| Extremity CT |
0.1 |
| Whole-Body CT |
10 |
X-Ray Examinations (Unit: mSv)
| Body Part |
Dose |
| Chest X-Ray |
0.1 |
| Abdominal X-Ray |
0.7 |
| Extremity X-Ray |
0.01 |
| Dental X-Ray |
0.005 |
Other Examinations (Unit: mSv)
| Type |
Dose |
| PET-CT |
14 |
| Bone Scan |
6 |
| Angiography |
5-15 |
| Mammography |
0.4 |
Radiation Decay Pattern
Using the exponential decay model:
残留剂量 = 初始剂量 × (0.5)^(天数/365)
年消散率：约 50% 每年
Radiation Safety Thresholds
| Annual Average Natural Background |
2.4 mSv/year |
| Public Annual Dose Limit |
1 mSv/year (excluding natural background) |
| Occupational Worker Limit |
20 mSv/year |
| Medical Examination Recommendation |
Annual cumulative < 10 mSv |
Body Surface Area Calculation
Mosteller formula:
体表面积 = √(身高cm × 体重kg / 3600)
Dose Adjustment Coefficients
标准体表面积：1.73 m²
调整系数 = 实际体表面积 / 1.73
调整后剂量 = 标准剂量 × 调整系数
Radiation Impact Assessment
| Dose Range |
Assessment |
| < 1 mSv |
Extremely low risk, no special handling required |
| 1-10 mSv |
Needs to be recorded, annual summary recommended |
| 10-50 mSv |
Needs attention, spaced examinations recommended |
| > 50 mSv |
Needs physician assessment, strict recording required |
