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[3D CT of fractures: comparison of volume and surface reconstruction]
O Rieker1, P Mildenberger, L Rudig
1Klinik für Radiologie, Johannes-Gutenberg-Universität Mainz. rieker@radiologie.klinik.uni-mainz.de
Purpose:
The comparison of volume rendering (VR) and surface rendering (SSD) for demonstrating fractures from spiral-CT data.
Materials And Methods:
Standardized VR and SSD projections were produced from 50 spiral CT scans of 50 consecutive patients with fractures. Appropriate multiplanar reformattings (MPR) were used as the standard.
Results:
SSD provided sufficient information in 31/50 cases. Results of VR were not significantly different (33/50). VR was superior in demonstrating 6/7 craniofacial fractures and 3/3 calcaneal fractures. SSD was superior for visualizing 2/3 shoulder fractures and 2/2 elbow fractures.
Conclusion:
VR is a flexible technique for the depiction of fractures and the assessment of spongiosa and articular surfaces at one setting. SSD is superior in the delineation of small dislocated fragments.