MARKER TRACKS POST-PROCESSING FOR ACCURATE FIDUCIAL MARKER POSITION ESTIMATION IN CONE BEAM CT PROJECTION IMAGES

Bogdan Matuszewski, Tom Marchant, Andrzej Skalski

Abstract

This paper describes details of a method for robust and accurate marker position estimation in projection CB images. The method is based on previously proposed tracking algorithms which can cope with multiple proximate markers and image clutter. The algorithm described in this paper can be seen as a post processing algorithm which uses all the calculated hypothetical marker positions, from the tracking algorithm, for all the markers and all projection images in a single combinatorial optimisation process. The algorithm has been design to estimate intra fraction motion during image guided radiation therapy. The results from the algorithm can be used in treatment planning, subsequent treatment monitoring and correction of motion artefacts in cone beam CT. The proposed post processing algorithm reduced the maximum marker position error from 5.6 pixels, using tracker alone, to 2.6 pixels after post processing. This should be compared to estimated 2.5 pixels maximum error present in the ground truth data. For the total number of 3,840 tracked markers after post processing 1.61% and 0.02% of their positional errors were respectively above three and six standard deviation of the ground truth, estimated separately for each marker and each projection image, whereas corresponding results after using tracker alone were 2.86% and 0.23%.

References

  1. Arulampalam S, Maskell S, Gordon N and Clapp T 2002 A tutorial on particle filters for on-line non-linear/nonGaussian Bayesian tracking, IEEE Transactions on Signal Processing 50 174-188
  2. Balter J M and Cao Y. 2007 Advanced technologies in image-guided radiation therapy Semin. Radiat. Oncol. 17 293-297
  3. Berbeco R I, Jiang S B, Sharp G C, Chen C T Y, Mostafi H and Shirato H 2004 Integrated radiotherapy imaging system (IRIS): design considerations of tumour tracking with linac gantry-mounted diagnostic x-ray system with flat-panel detectors Phys. Med. Biol. 49 243-55
  4. Comaniciu D and Meer P 2002 Mean Shift: A robust approach towards feature space analysis IEEE Trans. Pattern Analysis and Machine Intelligence 24 603-19
  5. Cui Y, Dy J G, Sharp G C, Alexander B and Jiang S B 2007 Robust fluoroscopic respiratory gating for lung cancer radiotherapy without implanted fiducial markers Phys. Med. Biol. 52 741-55
  6. Doucet A, Freitas N, Gordon N 2001 Sequential Monte Carlo Methods in Practice (New York: Springer)
  7. Hoisak J D P, Sixel K E, Tirona R, Cheung P C F and Pibnol J P 2004 Correlation of lung tumor motion with external surrogate indicators of respiration Int. J. Radiat. Oncol. Biol. Phys. 60 1298-306
  8. Keall P J, Todor A D, Vedam S S, Bartee C L, Siebers J V, Kini V R and Mohan R 2004 On the use of EPIDbased implanted marker tracking for 4D radiotherapy Med. Phys. 31 3492-9
  9. Marchant T E, Amer A M and Moore C J 2008 Measurement of inter and intra fraction organ motion in radiotherapy using cone beam CT projection images Phys. Med. Biol. 53 pp. 1-12
  10. Marchant T, Price G, and Moore C, 2009, 'Motion Correction in Cone Beam CT (CBCT) by Projection Image Warping', UK Radiation Oncology Conference, Cardiff, 6-8 April 2009 (abstracted in Clinical Oncology 21 (3) p243). DOI: 10.1016/j.clon.2009.01.001
  11. Matuszewski B J Skalski A, Marchant T E, 2010, Automatic tracking of implanted fiducial markers in cone beam CT projection images, submitted to Physics in Medicine and Biology.
  12. Moore C J and Graham P A 2000 3D dynamic body surface sensing and CT-body matching a tool for patient set-up and monitoring in radiotherapy, J. Computer Aided Surgery, Special Edition on Planning and Image-Guidance in Radiation Therapy 5 2000 234-45
  13. Poulsen P R, Cho B and Keall P J 2008 A method to estimate mean position, motion magnitude, motion correlation, and trajectory of a tumor from cone-beam CT projections for image-guided radiotherapy Int. J. Radiation Oncology Biol. Phys. 72 1587-1596
  14. Shirato H, Shimizu S, Shimizu T, Kitamura K, Nishioka T, Kagei K, Hashimoto S, Aoyama H, Kunieda T, Shinohara N, Dosaka-Akita H and Miyasaka K 1999 Four-dimensional treatment planning and fluoroscopic real-time tumor tracking radiotherapy for moving tumor Int. J. Radiat. Oncol. Biol. Phys. 48 435-42
  15. Tang X, Sharp G C and Jiang S B 2007 Fluoroscopic tracking of multiple implanted fiducial markers using multiple object tracking Phys. Med. Bio 52 4081-98
  16. Willoughby T R, Kupelian P A, Pouliot J, Shinohara K, Aubin M, Roach M, Skrumeda L L, Balter J M, Litzenberg D W Hadley S W, Wei J T and Sandler H M 2006 Target localization and real-time tracking using the Calypso 4D localization system in patients with localized prostate cancer, Int J radiat Oncal Biol Phys 65 528-34
Download


Paper Citation


in Harvard Style

Matuszewski B., Marchant T. and Skalski A. (2010). MARKER TRACKS POST-PROCESSING FOR ACCURATE FIDUCIAL MARKER POSITION ESTIMATION IN CONE BEAM CT PROJECTION IMAGES . In Proceedings of the International Conference on Computer Vision Theory and Applications - Volume 1: ECSMIO, (VISIGRAPP 2010) ISBN 978-989-674-028-3, pages 522-529. DOI: 10.5220/0002920005220529


in Bibtex Style

@conference{ecsmio10,
author={Bogdan Matuszewski and Tom Marchant and Andrzej Skalski},
title={MARKER TRACKS POST-PROCESSING FOR ACCURATE FIDUCIAL MARKER POSITION ESTIMATION IN CONE BEAM CT PROJECTION IMAGES},
booktitle={Proceedings of the International Conference on Computer Vision Theory and Applications - Volume 1: ECSMIO, (VISIGRAPP 2010)},
year={2010},
pages={522-529},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0002920005220529},
isbn={978-989-674-028-3},
}


in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Computer Vision Theory and Applications - Volume 1: ECSMIO, (VISIGRAPP 2010)
TI - MARKER TRACKS POST-PROCESSING FOR ACCURATE FIDUCIAL MARKER POSITION ESTIMATION IN CONE BEAM CT PROJECTION IMAGES
SN - 978-989-674-028-3
AU - Matuszewski B.
AU - Marchant T.
AU - Skalski A.
PY - 2010
SP - 522
EP - 529
DO - 10.5220/0002920005220529