Research Article

Sacral Insufficiency Fracture after Radiotherapy for Cervical Cancer: Appearance and Dynamic Changes on 18F-Fluorodeoxyglucose Positron Emission Tomography/Computed Tomography

Table 2

Imaging features of the 38 patients with SIF.

Sacral involvement
Left17 (44.7%)
Right8 (21.%)
Double13 (34.2%)

CT density
Increased35 (92.1%)
Unchanged3 (7.9%)
Decreased0 (0%)

Sacral manifestation
Abnormal (cortical folds or fracture lines)28 (73.7%)
Normal10 (26.3)

Metabolism (SUVmax)
Range1.8–5.9
Average3.1

Metabolic pattern
Diffuse or linear37 (97.3%)
Focal1 (2.7%)

SIF, sacral insufficiency fracture; SUVmax, maximum standardized uptake value.