Determination of position and radius of ball joints

M van der Glas, FM Vos, CP Botha, AM Vossepoel

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

9 Citations (Scopus)


For successful ball-joint replacement surgery, it is important to maintain the joint's geometric center. Pre-operative detection of this center is achieved by detecting the sphere that fits onto the articular surfaces in CT or MRI images. We have developed a novel technique to automatically determine the sub-voxel position and size of a sphere in unsegmented 3D images. The method is invariant to size and robust to noise. It only needs one fourth of a sphere to detect the center. Isotropically as well as anisotropically sampled images can be used. As no segmentation is required, it can be applied directly to clinical images.
Original languageUndefined/Unknown
Title of host publicationMedical Imaging 2002: Visualization, Image-Guided Procedures, and Display, Proceedings
EditorsM Sonka, JM Fitzpatrick
Place of PublicationBellingham, WA, USA
Number of pages7
ISBN (Print)0-8194-4429-4
Publication statusPublished - 2002
EventMedical Imaging 2002: Visualization, Image-Guided Procedures, and Display (San Diego, CA, USA) - Bellingham, WA, USA
Duration: 24 Feb 200228 Feb 2002

Publication series

NameProceedings of SPIE- International Society for Optical Engineering
ISSN (Print)0277-786X


ConferenceMedical Imaging 2002: Visualization, Image-Guided Procedures, and Display (San Diego, CA, USA)

Bibliographical note

ISSN 0277-786X, phpub 35


  • conference contrib. refereed
  • Conf.proc. > 3 pag

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