A method to analyze the cord geometrical uncertainties during head and neck radiation therapy using cone beam CT

被引：11

作者：

Zeng, Grace G. ^{[1
]}

Breen, Stephen L. ^{[1
,2
]}

Bayley, Andrew ^{[1
,2
]}

White, Elizabeth ^{[1
]}

Keller, Harald ^{[1
,2
]}

Dawson, Laura ^{[1
,2
]}

Jaffray, David A. ^{[1
,2
]}

机构：

[1] Univ Hlth Network, Princess Margaret Hosp, Toronto, ON, Canada

[2] Univ Toronto, Dept Radiat Oncol, Toronto, ON M5S 1A1, Canada

来源：

RADIOTHERAPY AND ONCOLOGY | 2009年 / 90卷 / 02期

关键词：

Setup uncertainties; CBCT; H&N radiation treatment; SETUP UNCERTAINTIES; RADIOTHERAPY; MARGINS; CANCER; IMRT;

D O I：

10.1016/j.radonc.2008.08.013

中图分类号：

R73 [肿瘤学];

学科分类号：

100214 ;

摘要：

We developed a method to analyze quantitatively the residual cord geometrical uncertainties after image registration during head and neck radiation therapy by using sequential cone beam CT (CBCT). The geometrical centroid line of cervical spinal canal was computed to serve as a cord surrogate. We found that the cord motions were non-uniform from C1 to C6, and that the patterns of motion were variable across patients. This method has potential applications in monitoring cord setup accuracy and in designing treatment margins. (C) 2008 Elsevier Ireland Ltd. All rights reserved. Radiotherapy and Oncology 90 (2009) 228-230

引用

页码：228 / 230

页数：3

共 8 条

[1] Adequate margins for random setup uncertainties in head-and-neck IMRT [J].

Astreinidou, E ;

Bel, A ;

Raaijmakers, CPJ ;

Terhaard, CHJ ;

Lagendijk, JJW .

INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS, 2005, 61 (03) :938-944

[2]

BAYLEY AJ, 2002, MED TEC TYPE S HEAD

[3] The impact of daily setup variations on head-and-neck intensity-modulated radiation therapy [J].

Hong, TS ;

Tomé, WA ;

Chappell, RJ ;

Chinnaiyan, P ;

Mehta, MP ;

Harari, PM .

INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS, 2005, 61 (03) :779-788

[4] Three-dimensional accuracy and interfractional reproducibility of patient fixation and positioning using a stereotactic head mask system [J].

Karger, CP ;

Jäkel, O ;

Debus, J ;

Kuhn, S ;

Hartmann, GH .

INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS, 2001, 49 (05) :1493-1504

[5] The effect of setup uncertainty on normal tissue sparing with IMRT for head-and-neck cancer [J].

Manning, MA ;

Wu, QW ;

Cardinale, RM ;

Mohan, R ;

Lauve, AD ;

Kavanagh, BD ;

Morris, MM ;

Schmidt-Ullrich, RK .

INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS, 2001, 51 (05) :1400-1409

[6] Margins for geometric uncertainty around organs at risk in radiotherapy [J].

McKenzie, A ;

van Herk, M ;

Mijnheer, B .

RADIOTHERAPY AND ONCOLOGY, 2002, 62 (03) :299-307

[7] The probability of correct target dosage: Dose-population histograms for deriving treatment margins in radiotherapy [J].

van Herk, M ;

Remeijer, P ;

Rasch, C ;

Lebesque, JV .

INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS, 2000, 47 (04) :1121-1135

[8] Multiple regions-of-interest analysis of setup uncertainties for head-and-neck cancer radiotherapy [J].

Zhang, LF ;

Garden, AS ;

Lo, J ;

Ang, KK ;

Ahamad, A ;

Morrison, WH ;

Rosenthal, DI ;

Chambers, MS ;

Zhu, XR ;

Mohan, R ;

Dong, L .

INTERNATIONAL JOURNAL OF RADIATION ONCOLOGY BIOLOGY PHYSICS, 2006, 64 (05) :1559-1569

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