Journal article

KLÍMA Ondřej, NOVOBILSKÝ Petr, MADEJA Roman, BAŘINA David, CHROMÝ Adam, ŠPANĚL Michal and ZEMČÍK Pavel. Intensity-based non overlapping area registration supporting "drop-outs" in terms of model-based radiostereometric analysis. Journal of Healthcare Engineering. London: Hindawi Publishing Corporation, 2018, vol. 2018, no. 1, pp. 1-10. ISSN 2040-2295.
Publication language:english
Original title:Intensity-Based Nonoverlapping Area Registration Supporting "drop-Outs" in Terms of Model-Based Radiostereometric Analysis
Title (cs):Intenzitní registrace založená na nepřekrývajících se oblastech podporující "nespolehlivé části" pro využití v oblasti modelové radiostereometrie
Journal:Journal of Healthcare Engineering, Vol. 2018, No. 1, London, GB
Radiostereometric analysis, implant migration, pose estimation, intesity-based registration, OpenGL acceleration
A model-based radiostereometric analysis (MBRSA) is a method for precise measurement of prosthesis migration, which does not require marking the implant with tantalum beads. Instead, the prosthesis pose is typically recovered using a feature-based 2D-3D registration of its virtual model into a stereo pair of radiographs. In this study, we evaluate a novel intensity-based formulation of previously published non-overlapping area (NOA) approach. The registration is capable to perform with both binary radiographic segmentations or non segmented X-ray images. In contrast with the feature-based version, it is capable to deal with unreliable parts of prosthesis. As the straightforward formulation allows efficient acceleration using modern graphics adapters, it is possible to involve precise high-poly virtual models. Moreover, in case of binary segmentations, the non-overlapping area is simply interpretable, useful for indicating the accuracy of the registration outcome. In silico and phantom evaluations were performed using a cementless Zweymüller femoral stem and its reverse engineered (RE) model. For initial pose estimates with difference from the ground-truth limited to 4 mm and 4° respectively, the mean absolute translational error was not higher than 0.042+-0.035 mm. The error in rotation around the proximodistal axis was 0.181+-0.265°, error for remaining axes was not higher than 0.035+-0.037°.
   author = {Ond{\v{r}}ej Kl{\'{i}}ma and Petr Novobilsk{\'{y}}
	and Roman Madeja and David Ba{\v{r}}ina and Adam
	Chrom{\'{y}} and Michal {\v{S}}pan{\v{e}}l and
	Pavel Zem{\v{c}}{\'{i}}k},
   title = {Intensity-Based Nonoverlapping Area Registration
	Supporting "drop-Outs" in Terms of
	Model-Based Radiostereometric Analysis},
   pages = {1--10},
   journal = {Journal of Healthcare Engineering},
   volume = {2018},
   number = {1},
   year = {2018},
   ISSN = {2040-2295},
   doi = {10.1155/2018/8538125},
   language = {english},
   url = {}

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