J Korean Soc Radiol.  2012 Jan;66(1):77-82. 10.3348/jksr.2012.66.1.77.

Diagnostic Accuracy of the Volume Rendering Images of Multi-Detector CT for the Detection of Lumbar Transverse Process Fractures

  • 1Department of Radiology, Eulji University Hospital, Daejeon, Korea. tchun@eulji.ac.kr


To compare the accuracy of three-dimensional computed tomographic (3D CT) volume rendering techniques with axial images of multi-detector row computed tomography to identify lumbar transverse process (LTP) fractures in trauma patients.
We retrospectively evaluated 42 patients with back pain as a result of blunt trauma between January and June of 2010. Two radiologists examined the 3D CT volume rendering images independently. The confirmation of a LTP fracture was based on the consensus of the axial images by the two radiologists. The results of 3D CT volume rendering images were compared with the axial images and the diagnostic powers (sensitivity, specificity, and accuracy) were calculated.
Seven of the 42 patients had twenty five lumbar transverse process fractures. The diagnostic power of the 3D CT volume rendering technique is as accurate as axial images. Reader 1, sensitivity 96%, specificity 100%, accuracy 99.9%; and Reader 2 sensitivity 100%, specificity 99.8%, accuracy 99.8%. The accordance of the two radiologists was 99.8%.
3D CT volume rendering images can alternate axial images to detect lumbar transverse process fractures with good image quality.

MeSH Terms

Back Pain
Lumbar Vertebrae
Retrospective Studies
Sensitivity and Specificity
Spinal Fractures


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