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language
eng
Attribute
original article
Author
Ikeda, Shin
Moriyama, Masahiro
Yokokawa, Masaki
Kawaguchi, Atsuya
Uchida, Koji
Uchida, Nobue
Description
While CT is essential for planning radiation therapy, MRI is used for imaging brain tumors for greater soft tissue contrast and more accurate depiction of tumors, particularly in cases involving stereotactic radiosurgery(SRS). However, MRI is characterized by greater image distortion than CT, making accurate localization of the target tumor difficult. This study evaluated the effects of such distortion on SRS planning. CT and MRI incorporating SRS planning parameters were performed on a brain phantom, and the images were then fused for comparison. We compared treatment parameters obtained from CT data alone with those obtained from the fused images. A maximum linear distortion of 3.3 mm was observed on coronal MRI. When SRS planning incorporated the coronal MRI data, treatment parameters derived from CT data alone were less accurate than those obtained from the fused images.
Journal Title
Shimane journal of medical science
Volume
28
Issue
1
Start Page
27
End Page
34
ISSN
03865959
ISSN(Online)
24332410
Published Date
2011-12-01
NCID
AA00841586
Publisher Aalternative
Shimane University Faculty of Medicine
NII Type
Departmental Bulletin Paper
Format
PDF
Text Version
出版社版
OAI-PMH Set
Faculty of Medicine
Remark
http://ci.nii.ac.jp/vol_issue/nels/AA00841586_jp.html
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