Modelling the wedge shape for the virtual wedge

Liyun Chang; Sheng Yow Ho; Helen H.W. Chen

doi:10.1088/0031-9155/48/12/308

Modelling the wedge shape for the virtual wedge

Liyun Chang, Sheng Yow Ho, Helen H.W. Chen

Department of Oncology

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

We present a method to model the virtual wedge shape in a 3D treatment planning system as a physical wedge. The virtual wedge shape was determined using the measured dose profile of the virtual wedge at a chosen reference depth. The differences between the calculated and the measured dose profiles for the virtual wedge were within 0.5% at the reference depth, and within 2.5% at other depths. This method provides a fast and accurate way to implement the virtual wedge into our planning system for any wedge angles. This method is also applicable to model the physical wedge shapes with comparable good results.

Original language	English
Pages (from-to)	1785-1794
Number of pages	10
Journal	Physics in Medicine and Biology
Volume	48
Issue number	12
DOIs	https://doi.org/10.1088/0031-9155/48/12/308
Publication status	Published - 2003 Jun 21

All Science Journal Classification (ASJC) codes

Radiological and Ultrasound Technology
Radiology Nuclear Medicine and imaging

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10.1088/0031-9155/48/12/308

Cite this

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N2 - We present a method to model the virtual wedge shape in a 3D treatment planning system as a physical wedge. The virtual wedge shape was determined using the measured dose profile of the virtual wedge at a chosen reference depth. The differences between the calculated and the measured dose profiles for the virtual wedge were within 0.5% at the reference depth, and within 2.5% at other depths. This method provides a fast and accurate way to implement the virtual wedge into our planning system for any wedge angles. This method is also applicable to model the physical wedge shapes with comparable good results.

AB - We present a method to model the virtual wedge shape in a 3D treatment planning system as a physical wedge. The virtual wedge shape was determined using the measured dose profile of the virtual wedge at a chosen reference depth. The differences between the calculated and the measured dose profiles for the virtual wedge were within 0.5% at the reference depth, and within 2.5% at other depths. This method provides a fast and accurate way to implement the virtual wedge into our planning system for any wedge angles. This method is also applicable to model the physical wedge shapes with comparable good results.

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JO - Physics in Medicine and Biology

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Modelling the wedge shape for the virtual wedge

Abstract

All Science Journal Classification (ASJC) codes

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