Imaging Comparision Study Of Primary Osteoporotic Vertebrae Compression Fracture

Objective: To investigate the findings and diagnostic value of X-ray, CT, MRI, radionuclide imaging in the diagnosis of primary osteoporotic vertebrae compression fracture, and to emphasize the MRI findings. Methods: The X-ray, CT, MRI, radionuclide imaging appearances of thirty—nine cases (61 vertebrae) of primary osteoporotic vertebrae compression fracture by following study were analysed, to review the density, intensity, shape, accompany change, high uptake form of the vertebrae. The comparision group was thirty aliked age class of vertebrae metastatic tumor with intact imanging information.. Results: Thirty—nine cases had sixty—one vertebraeso X—ray, CT, MRI, radionuclide imaging detected 61, 61, 61, 55 compression vertebraes respectively, diagnosed 39, 53, 58, 28 compression vertebrae correctly. The sensitivity of X—ray, CT, MRI, radionuclide imaging is 100%, 100%, 100% , 90.1%, the accuracy is 64.0%, 86.9%, 95.1%, 45.9% . Double contour sign posterior to the body of vertebrae , heterogeneous signal intensity on T1WI, intravertebral fluid sign, air sign, protrusion of post—superior or post—inferior angle of the vertebrae body, band—like high uptake are specific signs of primary osteoporotic vertebrae compression fracture. Conclusion: Primary osteoporotic vertebrae compression fractures have specific signs on X—ray , CT, MRI, radionuclide imaging.CT and MRI are high sensitive and accurate ways in diagnosing compression fracture by now.