Analysis of Three-Dimensional Characteristics in Tumor Morphology

Precise assessment of therapeutic response in radiotherapy has been an important issue in the field of radiation oncology. This study proposed a methodology to evaluate therapeutic response based on tumor geometries. Three-dimensional (3D) tumor shapes were obtained from follow-up CT scans taken onc...

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Main Authors: Seishin TAKAO, Shigeru TADANO, Hiroshi TAGUCHI, Hiroki SHIRATO
Format: Article
Language:English
Published: The Japan Society of Mechanical Engineers 2009-05-01
Series:Journal of Biomechanical Science and Engineering
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/jbse/4/2/4_2_221/_pdf/-char/en
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author Seishin TAKAO
Shigeru TADANO
Hiroshi TAGUCHI
Hiroki SHIRATO
author_facet Seishin TAKAO
Shigeru TADANO
Hiroshi TAGUCHI
Hiroki SHIRATO
author_sort Seishin TAKAO
collection DOAJ
description Precise assessment of therapeutic response in radiotherapy has been an important issue in the field of radiation oncology. This study proposed a methodology to evaluate therapeutic response based on tumor geometries. Three-dimensional (3D) tumor shapes were obtained from follow-up CT scans taken once a week throughout the treatment period. Tumor geometries were represented in two-dimensional (2D) surface geometry maps. These maps indicated the distances from the tumor center to surface at each azimuthal and horizontal angle by colors, in order to represent the characteristics of tumor morphologies. This method was applied to three clinical cases of head and neck cancer. The changes of tumor geometries could be represented visually and quantitatively using surface geometry maps. These maps provided valuable information about tumors for accurate diagnosis of tumor response to radiotherapy.
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publisher The Japan Society of Mechanical Engineers
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spelling doaj.art-76f1fcf41b964544b2c11e373a98af9d2022-12-22T03:01:52ZengThe Japan Society of Mechanical EngineersJournal of Biomechanical Science and Engineering1880-98632009-05-014222122910.1299/jbse.4.221jbseAnalysis of Three-Dimensional Characteristics in Tumor MorphologySeishin TAKAO0Shigeru TADANO1Hiroshi TAGUCHI2Hiroki SHIRATO3Division of Human Mechanical Systems and Design, Graduate School of Engineering, Hokkaido UniversityDivision of Human Mechanical Systems and Design, Graduate School of Engineering, Hokkaido UniversityDepartment of Radiology, Hokkaido University Graduate School of MedicineDepartment of Radiology, Hokkaido University Graduate School of MedicinePrecise assessment of therapeutic response in radiotherapy has been an important issue in the field of radiation oncology. This study proposed a methodology to evaluate therapeutic response based on tumor geometries. Three-dimensional (3D) tumor shapes were obtained from follow-up CT scans taken once a week throughout the treatment period. Tumor geometries were represented in two-dimensional (2D) surface geometry maps. These maps indicated the distances from the tumor center to surface at each azimuthal and horizontal angle by colors, in order to represent the characteristics of tumor morphologies. This method was applied to three clinical cases of head and neck cancer. The changes of tumor geometries could be represented visually and quantitatively using surface geometry maps. These maps provided valuable information about tumors for accurate diagnosis of tumor response to radiotherapy.https://www.jstage.jst.go.jp/article/jbse/4/2/4_2_221/_pdf/-char/entumor geometrysurface geometry mapradiotherapytherapeutic response
spellingShingle Seishin TAKAO
Shigeru TADANO
Hiroshi TAGUCHI
Hiroki SHIRATO
Analysis of Three-Dimensional Characteristics in Tumor Morphology
Journal of Biomechanical Science and Engineering
tumor geometry
surface geometry map
radiotherapy
therapeutic response
title Analysis of Three-Dimensional Characteristics in Tumor Morphology
title_full Analysis of Three-Dimensional Characteristics in Tumor Morphology
title_fullStr Analysis of Three-Dimensional Characteristics in Tumor Morphology
title_full_unstemmed Analysis of Three-Dimensional Characteristics in Tumor Morphology
title_short Analysis of Three-Dimensional Characteristics in Tumor Morphology
title_sort analysis of three dimensional characteristics in tumor morphology
topic tumor geometry
surface geometry map
radiotherapy
therapeutic response
url https://www.jstage.jst.go.jp/article/jbse/4/2/4_2_221/_pdf/-char/en
work_keys_str_mv AT seishintakao analysisofthreedimensionalcharacteristicsintumormorphology
AT shigerutadano analysisofthreedimensionalcharacteristicsintumormorphology
AT hiroshitaguchi analysisofthreedimensionalcharacteristicsintumormorphology
AT hirokishirato analysisofthreedimensionalcharacteristicsintumormorphology