[NMR tomographic measurement of femoral ante-torsion and tibial torsion].

Purpose: A new MRI method for the measurement of femoral torsion and tibial torsion is presented.
Methods: Axial images were generated using a standard gradient echo sequence (FLASH 2D). Otherwise measurement of femoral and tibial torsion was performed according to an established CT method.
Results: The torsion angles measured using MRI were in accordance with the angles measured using the CT method. The MRI method was not more time-consuming than the CT method.
Conclusion: In respect of radiation exposure, MRI determination of femoral and tibial torsion should be considered particularly in children and patients who have to undergo repeated torsion measurements.