Age Limit Guidelines for Imaging Exams
- Use this chart to determine age eligibility for each imaging exam type.
- Refer to the Radiologist Physician List by Modality for further details when needed.
Ultrasound (Sonography)
| Exam Types | Minimum Age | Notes |
| General Ultrasound | No Minimum | Refer to Radiologist Physician List by Modality |
| Breast Ultrasound (Symptomatic) | 16 years old | For symptomatic patients under 30 |
| Breast Ultrasound (Dense Tissue) | 16 years old | For patients with prior screening mammogram and dense tissue follow-up |
Mammography & Bone Density
| Exam Type | Minimum Age | Notes |
| Screening Mammogram | 16 years old | Annual/screening typically starts at 40. If under 35, an order is required. |
| Diagnostic Mammogram | 30 years old | For:
|
| DEXA/Bone Density | 16 |
MRI Exams
| Exam Type | Minimum Age | Notes |
| MRI without Contrast | 16 years old | |
| MRI with Contrast | 18 years old |
CT Scans
| Exam Type | Minimum Age | Notes |
| CT with IV Contrast | 18 years old | |
| CT with Barium Contrast | 16 years old | |
| CT without Contrast | 16 years old | |
| CT Calcium/Cardiac Scoring | 16 years |
Other Modalities
| Exam Type | Minimum Age | Notes |
| X-Ray | 16 years old |
EDITED: 06/16/2025
