Frakturdiagnostik am Kniegelenk mit einem neuen mobilen CT-System (ISO-C-3D): Vergleich mit konventionellem Röntgen und Spiral-CT
| Autor: | Stefan Wirth, Klaus-Jürgen Pfeifer, Wolf Mutschler, C. Rock, E. Euler, R. Brandl, M. F. Reiser, D. Kotsianos, Ulrich Linsenmaier, T. Fischer |
|---|---|
| Rok vydání: | 2002 |
| Předmět: | |
| Zdroj: | RöFo - Fortschritte auf dem Gebiet der Röntgenstrahlen und der bildgebenden Verfahren. 174:82-87 |
| ISSN: | 1438-9010 1438-9029 |
| DOI: | 10.1055/s-2002-19549 |
| Popis: | PURPOSE To analyze a prototype mobile C-arm 3D image amplifier in the detection and classification of experimental tibial condylar fractures with multiplanar reconstructions (MPR). METHOD Human knee specimens (n = 22) with tibial condylar fractures were examined with a prototype C-arm (ISO-C-3D, Siemens AG), plain films (CR) and spiral CT (CT). The motorized C-arm provides fluoroscopic images during a 190 degrees orbital rotation computing a 119 mm data cube. From these 3D data sets MP reconstructions were obtained. All images were evaluated by four independent readers for the detection and assessment of fracture lines. All fractures were classified according to the Muller AO classification. To confirm the results, the specimens were finally surgically dissected. RESULTS 97 % of the tibial condylar fractures were easily seen and correctly classified according to the Muller AO classification on MP reconstruction of the ISO-C-3D. There is no significant difference between ISO-C and CT in detection and correct classification of fractures, but ISO-CD-3D is significant by better than CR. CONCLUSION The evaluation of fractures with the ISO-C is better than with plain films alone and comparable to CT scans. The three-dimensional reconstruction of the ISO-C can provide important information which cannot be obtained from plain films. The ISO-C-3D may be useful in planning operative reconstructions and evaluating surgical results in orthopaedic surgery of the limbs. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|