Intra-operative adjustment of standard planes in C-arm CT image data

International Journal of Computer Assisted Radiology and Surgery
Michael BrehlerDiana Nabers

Abstract

With the help of an intra-operative mobile C-arm CT, medical interventions can be verified and corrected, avoiding the need for a post-operative CT and a second intervention. An exact adjustment of standard plane positions is necessary for the best possible assessment of the anatomical regions of interest but the mobility of the C-arm causes the need for a time-consuming manual adjustment. In this article, we present an automatic plane adjustment at the example of calcaneal fractures. We developed two feature detection methods (2D and pseudo-3D) based on SURF key points and also transferred the SURF approach to 3D. Combined with an atlas-based registration, our algorithm adjusts the standard planes of the calcaneal C-arm images automatically. The robustness of the algorithms is evaluated using a clinical data set. Additionally, we tested the algorithm's performance for two registration approaches, two resolutions of C-arm images and two methods for metal artifact reduction. For the feature extraction, the novel 3D-SURF approach performs best. As expected, a higher resolution ([Formula: see text] voxel) leads also to more robust feature points and is therefore slightly better than the [Formula: see text] voxel images (standard s...Continue Reading

References

Oct 20, 2007·Conference Proceedings : ... Annual International Conference of the IEEE Engineering in Medicine and Biology Society·Jian Chen, Jie Tian
Mar 12, 2009·The Journal of Trauma·Jens GeerlingMartinus Richter
Mar 1, 2012·Der Unfallchirurg·J von RecumJ Franke
Apr 10, 2012·Medical Physics·Esther MeyerMarc Kachelrieß
Apr 17, 2013·International Journal of Computer Assisted Radiology and Surgery·Marco NoldenIvo Wolf
May 9, 2014·The Journal of Bone and Joint Surgery. American Volume·Jochen FrankeJan von Recum

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Citations

Nov 5, 2016·Physics in Medicine and Biology·S ReaungamornratJ H Siewerdsen
Apr 21, 2021·International Journal of Computer Assisted Radiology and Surgery·Sarina ThomasKlaus Maier-Hein

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