An Optimized Online Verification Imaging Procedure for External Beam Partial Breast Irradiation

Willis, David J.; Kron, Tomas; Chua, Boon

doi:10.1016/j.meddos.2010.02.010

Cited by 3 publications

(3 citation statements)

References 16 publications

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“…The non-central location of the isocentre makes clearance with the linear accelerator even more problematic. 16,17 Willis et al 18 identified pairs of nonorthogonal kV images as optimal for physical clearance between the patient and the linac for external beam partial breast irradiation. Donovan et al 19 described the determination of appropriate imaging angular range for left and right breast kV cone beam computed tomography (CBCT) scans by assessing the clearance of the gantry from the patient and couch.…”

Section: Discussionmentioning

confidence: 99%

Dosimetric feasibility of an “off-breast isocenter” technique for whole-breast cancer radiotherapy

Calvo-Ortega

Moragues

Pozo

et al. 2016

Reports of Practical Oncology & Radiotherapy

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Section: Discussionmentioning

confidence: 99%

Dosimetric feasibility of an “off-breast isocenter” technique for whole-breast cancer radiotherapy

Calvo-Ortega

Moragues

Pozo

et al. 2016

Reports of Practical Oncology & Radiotherapy

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“…Although CBCT offers high quality verification images, this benefit needs to be balanced against the potential harm of additional radiation exposure to normal organs of patients and introduction of motion artefacts during its acquisition. Its application will likely increase if complex IMRT 47 and partial breast irradiation 48 become more widely used. However, EPI is currently the preferred option for verification imaging in most patients undergoing radiotherapy for BC.…”

Section: The Role Of Igrt In Radiotherapy For Bcmentioning

confidence: 99%

“…The surgical clips implanted into the phantom are visible only in this image. Taken from Willis et al48…”

mentioning

confidence: 99%

Radiotherapy for Breast Cancer: How Can it Benefit from Advancing Technology?

Kron

Chua

2014

EMJ Oncol

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There have been significant technological and technical advances in radiotherapy over the last 20 years. This paper presents the pertinent advances and examines their application in contemporary breast cancer (BC) radiotherapy, particularly for reducing the long-term toxicity, using intensity-modulated radiation therapy, image-guided radiation therapy, and management of breathing motion. These modern technologies and techniques enable precise delivery of a highly conformal radiation dose distribution to the target volume in real-time, to optimise tumour control, and minimise treatment toxicity. They have been used for the treatment of BC in selected centres around the world. Although there is insufficient high-level evidence to support their routine application in BC at present, implementation of these technologies has been shown to be feasible, and could result in clinically meaningful long-term benefits for selected patients with BC.

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A Study on the Displacements of the Clips in Surgical Cavity for External-beam Partial Breast Irradiation after Breast-conserving Surgery Based on 4DCT

Wang

et al. 2012

JRR

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To explore the clip and the geometrical center displacements based on the four-dimensional computed tomography (4DCT) for external-beam partial breast irradiation (EB-PBI), fourteen breast cancer patients treated with breast-conserving surgery were recruited for EB-PBI and undertook 4DCT simulation during free breathing. The displacements of the selected clips and the geometrical center at left-right (LR), anterior-posterior (AP) and superior-inferior (SI) directions were measured. The comparison and the correlation of the displacement between the selected clips and the geometric center were analyzed. The displacements in AP and SI were greater than that in LR for the same selected clip (P < 0.05). Almost all the displacements of the geometrical center were greater than that of the selected clips in the same direction, (P < 0.05), except the displacements of lower clip in SI direction. The displacement of the geometric center showed a statistical correlation with the upper clip and lower clip in SI direction (both P < 0.05). Therefore, the internal margin in AP and SI directions should be greater than LR direction for the purpose of adequate target coverage and sparing more normal tissue. This study also indicates that the displacement of a single clip was not qualified to substitute for the displacement of the target based on all clips of the surgical cavity.

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An Optimized Online Verification Imaging Procedure for External Beam Partial Breast Irradiation

Cited by 3 publications

References 16 publications

Dosimetric feasibility of an “off-breast isocenter” technique for whole-breast cancer radiotherapy

Dosimetric feasibility of an “off-breast isocenter” technique for whole-breast cancer radiotherapy

Radiotherapy for Breast Cancer: How Can it Benefit from Advancing Technology?

A Study on the Displacements of the Clips in Surgical Cavity for External-beam Partial Breast Irradiation after Breast-conserving Surgery Based on 4DCT

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