eprintid: 1363080
rev_number: 59
eprint_status: archive
userid: 608
dir: disk0/01/36/30/80
datestamp: 2012-09-26 15:37:04
lastmod: 2021-09-23 22:41:10
status_changed: 2012-09-26 15:37:04
type: book_section
metadata_visibility: show
item_issues_count: 0
creators_name: Roth, H
creators_name: Boone, D
creators_name: Halligan, S
creators_name: Hampshire, T
creators_name: McClelland, J
creators_name: Hu, M
creators_name: Punwani, S
creators_name: Taylor, S
creators_name: Hawkes, D
title: External Clinical Validation of Prone and Supine CT Colonography Registration
ispublished: pub
divisions: UCL
divisions: B02
divisions: C10
divisions: D17
divisions: FI6
divisions: B04
divisions: C05
divisions: F42
keywords: Computer Science
note: The final publication is available at www.springerlink.com
abstract: This paper provides an external validation of a prone-supine registration algorithm for CT colonography (CTC). A validation sample of 49 patient cases with 66 polyps (6 to 30 mm) was selected from a publicly available, anonymized CTC archive. To enhance generalizability, no case was excluded due to poor preparation or inadequate distension. Corresponding prone and supine polyp coordinates were recorded and the endoluminal surfaces registered: a Markov Random Field technique was used to find feature matches between prone/supine acquisitions and following mapping of the endoluminal surface to a cylinder, dense surface correspondence was achieved via cylindrical non-rigid registration. The polyp registration error was determined and a subjective assessment of registration made for 2D slice-based and 3D endoluminal data display using a pre-specified scoring system. Results were compared to using “normalized distance along the colon centerline” (NDACC) which approximates to the method currently employed to match colonic positions using proprietary CT colonography interpretation software. Registration was possible in all 49 cases. Overall mean 3D polyp registration error was significantly smaller with 19.9 mm in comparison to 27.7 mm using NDACC (p=0.001). 82.7% of polyp matches were defined as “successful” in comparison to 37.1% using NDACC according to the pre-specified criteria. Similarly, using 2D visualization, 62.1% registrations were “successful” and only 22.7% using NDACC. Full surface-based prone-to-supine registration can successfully map the location of a polyp identified on one acquisition to the corresponding endoluminal surface in the opposing acquisition, greatly facilitating polyp matching and aiding interpretation. Our method compares favorably to using NDACC.
date: 2012
publisher: Springer Verlag
official_url: http://dx.doi.org/10.1007/978-3-642-33612-6_2
vfaculties: VGHCSCI
vfaculties: VENG
oa_status: green
language: eng
primo: open
primo_central: open_green
verified: verified_manual
elements_source: Manually entered
elements_id: 442959
doi: 10.1007/978-3-642-33612-6_2
isbn_13: 978-3-642-33611-9
lyricists_name: Boone, Darren
lyricists_name: Halligan, Michael Stephen
lyricists_name: Hampshire, Thomas
lyricists_name: Hawkes, David
lyricists_name: Hu, Mingxing
lyricists_name: McClelland, James
lyricists_name: Punwani, Shonit
lyricists_name: Roth, Holger
lyricists_name: Taylor, Stuart
lyricists_id: DJBOO90
lyricists_id: HALLI02
lyricists_id: TEHAM08
lyricists_id: DJHAW78
lyricists_id: MHUXX13
lyricists_id: JRMCC68
lyricists_id: SPUNW14
lyricists_id: HRROT46
lyricists_id: STAYL70
full_text_status: public
series: Lecture Notes in Computer Science
volume: 7601
place_of_pub: Berlin / Heidelberg, Germany
pagerange: 10-19
book_title: Abdominal Imaging. Computational and Clinical Applications: 4th InternationalWorkshop Held in Conjunction with MICCAI 2012 Nice, France, October 1, 2012 Proceedings
editors_name: Yoshida, H
editors_name: Hawkes, D
editors_name: Vannier, M
citation:        Roth, H;    Boone, D;    Halligan, S;    Hampshire, T;    McClelland, J;    Hu, M;    Punwani, S;         ... Hawkes, D; + view all <#>        Roth, H;  Boone, D;  Halligan, S;  Hampshire, T;  McClelland, J;  Hu, M;  Punwani, S;  Taylor, S;  Hawkes, D;   - view fewer <#>    (2012)    External Clinical Validation of Prone and Supine CT Colonography Registration.                    In: Yoshida, H and Hawkes, D and Vannier, M, (eds.) Abdominal Imaging. Computational and Clinical Applications: 4th InternationalWorkshop Held in Conjunction with MICCAI 2012 Nice, France, October 1, 2012 Proceedings. (pp. 10-19).   Springer Verlag: Berlin / Heidelberg, Germany.       Green open access   
 
document_url: https://discovery.ucl.ac.uk/id/eprint/1363080/1/HRRoth2012%20-%20External%20Clinical%20Validation%20of%20Prone%20and%20Supine%20CT%20Colonography%20Registration%20-%20preprint.pdf