Table 3.
Radiation dose associated with CBCT-guided vertebroplasty of the thoracic and lumbar spine using the task-specific protocols identified above. “Bone Protocol” and “Soft-Tissue Protocol (HiRes)” scan acquisitions are as in Table Table I.. Fluoroscopy dose during cement injection was approximated as ∼1 min of fluoroscopic time.
| Thoracic spine | Lumbar spine | ||
|---|---|---|---|
| Task | Acq. Type | Dw (mGy) | Dw (mGy) |
| Overview | Bone protocol | 1.81 | 3.16 |
| Needle placement | Bone protocol | 1.81 | 3.16 |
| Cement injection | Fluoro (<1 min) | 1.81 | 3.16 |
| Confirmation | Bone protocol | 1.81 | 3.16 |
| Post operation | Soft-tissue protocol (HiRes) | 4.26 | 10.6 |
| Total | 11.5 | 23.2 |