Locating the Reference Point of Symphysis Pubis in Axial CT Images.
In this paper, we present an effective method to determine the reference point of symphysis pubis (SP) in an axial stack of CT images to facilitate image registration for pelvic cancer treatment. In order to reduce the computational time, the proposed method consists of two detection parts, the coar...
| Publicado en: | Journal of Digital Imaging Vol. 25; no. 1; pp. 110 - 121 |
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| Autores principales: | , , |
| Formato: | diagnostic images equations & formulas research tables/charts Journal Article |
| Publicado: |
Springer Nature
Feb2012
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=104634123&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 104634123 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 08971889 DOQ jtl: Journal of Digital Imaging issn: 08971889 maglogo: N pubinfo: dt: Feb2012 vid: 25 iid: 1 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 104634123 70531102 10.1007/s10278-011-9384-z NLM21494903 PMC3264719 104634123 ppf: 110 ppct: 11 formats: fmt: @attributes: type: P tig: atl: Locating the Reference Point of Symphysis Pubis in Axial CT Images. aug: au: Oh, Jiyong Jung, Dae Choi, Chong-Ho affil: School of Electrical Engineering and Computer Science, ASRI, Seoul National University, Seoul 151-744 South Korea sug: subj: Pubic Symphysis Radiography Tomography, X-Ray Computed Diagnosis, Computer Assisted Image Processing, Computer Assisted Methods Human Radiographic Image Enhancement Validation Studies Evaluation Research Funding Source ab: In this paper, we present an effective method to determine the reference point of symphysis pubis (SP) in an axial stack of CT images to facilitate image registration for pelvic cancer treatment. In order to reduce the computational time, the proposed method consists of two detection parts, the coarse detector, and the fine detector. The detectors check each image patch whether it contains the characteristic structure of SP. The coarse detector roughly determines the location of the reference point of SP using three types of information, which are the location and intensity of an image patch, the SP appearance, and the geometrical structure of SP. The fine detector examines around the location found by the coarse detection to refine the location of the reference point of SP. In the experiment, the average location error of the propose method was 2.23 mm, which was about the side length of two pixels. Considering that the average location error by a radiologist is 0.77 mm, the proposed method finds the reference point quite accurately. Since it takes about 10 s to locate the reference point from a stack of CT images, it is fast enough to use in real time to facilitate image registration of CT images for pelvic cancer treatment. pubtype: Academic Journal doctype: diagnostic images equations & formulas research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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