[3D CT of fractures: comparison of volume and surface reconstruction].
OBJECTIVE
The comparison of volume rendering (VR) and surface rendering (SSD) for demonstrating fractures from spiral-CT data.


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.


CONCLUSIONS
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.
Rieker
O
O
Klinik für Radiologie, Johannes-Gutenberg-Universität Mainz. rieker@radiologie.klinik.uni-mainz.de
Mildenberger
P
P
Rudig
L
L
Schweden
F
F
Thelen
M
M
D002111:Calcaneus / Q000000981:diagnostic imaging / Q000293:injuries; D004551:Elbow Joint / Q000000981:diagnostic imaging; D005147:Facial Bones / Q000000981:diagnostic imaging / Q000293:injuries; D050723:Fractures, Bone / Q000000981:diagnostic imaging*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D015203:Reproducibility of Results; D012887:Skull Fractures / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed / Q000379:methods*; D000092464:Elbow Injuries
3D-CT von Frakturen: Vergleich von Volumen- und Oberflächen-Rekonstruktionen.