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Accuracy of volume measurement using 3D ultrasound and development of CT-3D US image fusion algorithm for prostate cancer radiotherapy

Title
Accuracy of volume measurement using 3D ultrasound and development of CT-3D US image fusion algorithm for prostate cancer radiotherapy
Authors
Baek J.Huh J.Kim M.Hyun An S.Oh Y.Kim D.Chung K.Cho S.Lee R.
Ewha Authors
이레나정광주김동영조성호
SCOPUS Author ID
이레나scopus; 김동영scopus; 조성호scopusscopus
Issue Date
2013
Journal Title
Medical Physics
ISSN
0094-2405JCR Link
Citation
Medical Physics vol. 40, no. 2
Indexed
SCI; SCIE; SCOPUS WOS scopus
Document Type
Article
Abstract
Purpose: To evaluate the accuracy of measuring volumes using three-dimensional ultrasound (3D US), and to verify the feasibility of the replacement of CT-MR fusion images with CT-3D US in radiotherapy treatment planning. Methods: Phantoms, consisting of water, contrast agent, and agarose, were manufactured. The volume was measured using 3D US, CT, and MR devices. A CT-3D US and MR-3D US image fusion software was developed using the Insight Toolkit library in order to acquire three-dimensional fusion images. The quality of the image fusion was evaluated using metric value and fusion images. Results: Volume measurement, using 3D US, shows a 2.8 ± 1.5% error, 4.4 ± 3.0% error for CT, and 3.1 ± 2.0% error for MR. The results imply that volume measurement using the 3D US devices has a similar accuracy level to that of CT and MR. Three-dimensional image fusion of CT-3D US and MR-3D US was successfully performed using phantom images. Moreover, MR-3D US image fusion was performed using human bladder images. Conclusions: 3D US could be used in the volume measurement of human bladders and prostates. CT-3D US image fusion could be used in monitoring the target position in each fraction of external beam radiation therapy. Moreover, the feasibility of replacing the CT-MR image fusion to the CT-3D US in radiotherapy treatment planning was verified. © 2013 American Association of Physicists in Medicine.
DOI
10.1118/1.4767753
Appears in Collections:
의과대학 > 의학과 > Journal papers
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