Reducing 4D CT artifacts using optimized sorting based on anatomic similarity

Medical Physics

Volumn 38, Issue 5, 2011, Pages 2424-2429

  Johnston, Eric ^a   Diehn, Maximilian ^a   Murphy, James D ^a   Loo, Billy W ^a   Maxim, Peter G ^a  

^a STANFORD UNIVERSITY   (United States)

Author keywords

4D CT; image artifacts; phase and displacement sorting; respiratory motion; two dimensional correlation coefficient

Indexed keywords

COMPUTERIZED TOMOGRAPHY; RESPIRATORY MECHANICS;

4D COMPUTED TOMOGRAPHY; CORRELATION COEFFICIENT; DISPLACEMENT-BASED; IMAGE ARTEFACTS; MOTION ARTIFACT; PHASE AND DISPLACEMENT SORTING; PHASE BASED; RESPIRATORY MOTIONS; TWO DIMENSIONAL CORRELATION COEFFICIENT; TWO-DIMENSIONAL CORRELATION;

SORTING;

EID: 79959537366     PISSN: 00942405     EISSN: None     Source Type: Journal    
DOI: 10.1118/1.3577601     Document Type: Article

References (14)

1. T. Pan, Comparison of helical and cine acquisitions for 4D-CT imaging with multislice CT., Med. Phys. 32, 627-634 (2005). 10.1118/1.1855013 (Pubitemid 40322344)
2. P. Keall, 4-dimensional computed tomography imaging and treatment planning., Semin. Radiat. Oncol. 14, 81-90 (2004). 10.1053/j.semradonc.2003.10. 006 (Pubitemid 38168957)
3. P. J. Keall, G. Starkschall, H. Shukla, K. M. Forster, V. Ortiz, C. W. Stevens, S. S. Vedam, R. George, T. Guerrero, and R. Mohan, Acquiring 4D thoracic CT scans using a multislice helical method., Phys. Med. Biol. 49, 2053-2067 (2004). 10.1088/0031-9155/49/10/015 (Pubitemid 38735491)
4. D. A. Low, M. Nystrom, E. Kalinin, P. Parikh, J. F. Dempsey, J. D. Bradley, S. Mutic, S. H. Wahab, T. Islam, G. Christensen, D. G. Politte, and B. R. Whiting, A method for the reconstruction of four-dimensional synchronized CT scans acquired during free breathing., Med. Phys. 30, 1254-1263 (2003). 10.1118/1.1576230 (Pubitemid 36735993)
5. W. Lu, P. J. Parikh, J. P. Hubenschmidt, J. D. Bradley, and D. A. Low, A comparison between amplitude sorting and phase-angle sorting using external respiratory measurement for 4D CT., Med. Phys. 33, 2964-2974 (2006). 10.1118/1.2219772 (Pubitemid 44154570)
6. E. Rietzel and G. T. Chen, Improving retrospective sorting of 4D computed tomography data., Med. Phys. 33, 377-379 (2006). 10.1118/1.2150780 (Pubitemid 43183980)
7. S. S. Vedam, P. J. Keall, V. R. Kini, and R. Mohan, Determining parameters for respiration-gated radiotherapy., Med. Phys. 28, 2139-2146 (2001). 10.1118/1.1406524 (Pubitemid 32977560)
8. T. Pan, X. Sun, and D. Luo, Improvement of the cine-CT based 4D-CT imaging., Med. Phys. 34, 4499-4503 (2007). 10.1118/1.2794225 (Pubitemid 350029671)
9. T. Yamamoto, U. Langner, B. W. Loo, Jr., J. Shen, and P. J. Keall, Retrospective analysis of artifacts in four-dimensional CT images of 50 abdominal and thoracic radiotherapy patients., Int. J. Radiat. Oncol., Biol., Phys. 72, 1250-1258 (2008). 10.1016/j.ijrobp.2008.06.1937
10. G. Carnes, S. Gaede, E. Yu, J. Van Dyk, J. Battista, and T. Y. Lee, A fully automated non-external marker 4D-CT sorting algorithm using a serial cine scanning protocol., Phys. Med. Biol. 54, 2049-2066 (2009). 10.1088/0031-9155/54/ 7/013
11. E. W. Dijkstra, A note on two problems in connexion with graphs., Numer. Math. 1, 269-271 (1959). 10.1007/BF01386390
12. J. Cohen, Weighted kappa: Nominal scale agreement with provision for scaled disagreement or partial credit., Psychol. Bull. 70, 213-220 (1968). 10.1037/h0026256
13. J. L. Fleiss and J. Cohen, Equivalence of weighted kappa and intraclass correlation coefficient as measures of reliability., Educ. Psychol. Meas. 33, 613-619 (1973). 10.1177/001316447303300309
14. A. F. Abdelnour, S. A. Nehmeh, T. Pan, J. L. Humm, P. Vernon, H. Schoder, K. E. Rosenzweig, G. S. Mageras, E. Yorke, S. M. Larson, and Y. E. Erdi, Phase and amplitude binning for 4D-CT imaging., Phys. Med. Biol. 52, 3515-3529 (2007). 10.1088/0031-9155/52/12/012 (Pubitemid 46830639)