A whole body atlas for segmentation and delineation of organs for radiation therapy planning
2001 (English)In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, ISSN 0168-9002, Vol. 471, no 1-2, 160-164 p.Article in journal (Refereed) Published
A semi-automatic procedure for delineation of organs, to be used as the basis of a whole body atlas database for radiation therapy planning was developed. The Visible Human Male Computed Tomography (CT)-data set was used as a standard man reference. The organ of interest was outlined manually and then transformed by a polynomial warping algorithm onto a clinical patient CT. This provided an initial contour, which was then adjusted and refined by the semi-automatic active contour model to find the final organ outline. The liver was used as a test organ for evaluating the performance of the procedure. Liver outlines obtained by the segmentation algorithm on six patients were compared to those manually drawn by, a radiologist. The combination of warping and semi-automatic active contour model generally provided satisfactory segmentation results, but the procedure has to be extended to three dimensions.
Place, publisher, year, edition, pages
2001. Vol. 471, no 1-2, 160-164 p.
active contour model, image warping, radiation therapy planning, segmentation, whole body atlas, radiotherapy, algorithm
Radiology, Nuclear Medicine and Medical Imaging
Research subject SRA - ICT
IdentifiersURN: urn:nbn:se:kth:diva-20966DOI: 10.1016/S0168-9002(01)00984-6ISI: 000171206500031OAI: oai:DiVA.org:kth-20966DiVA: diva2:339663
QC 201005252010-08-102010-08-102013-09-09Bibliographically approved