Optimization of high-dose-rate cervix brachytherapy applicator placement: The benefits of intraoperative ultrasound guidance

Davidson, Melanie; Yuen, Jasper; D’Souza, David; Radwan, John S.; Hammond, James R.; Batchelar, Deidre L.

doi:10.1016/j.brachy.2008.03.004

Cited by 64 publications

(45 citation statements)

References 22 publications

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“…TAUS-guided BT does not allow full volumetric analysis of tumor coverage or doses to OARs and may be considered as ''2.5D'' point-based planning. Therefore, this demonstrated approach could not entirely incorporate the volume-based concepts of The Groupe Europ een de Curieth erapie and the European Society for Radiotherapy & Oncology recommendations (14,15). Second, at present, TAUS cannot evaluate the residual tumor or the vaginal extension as accurately as MRI.…”

Section: Discussionmentioning

confidence: 97%

“…Although use of US has been proven to prevent uterine perforation during BT applications (13,14), the potential benefit of US in BT planning aspects has only been addressed in a few publications mainly focusing on comparisons of the uterine dimensions measured by US and MRI. However, Van Dyk et al were the first to report on 71 patients with locoregionally advanced cervical cancer treated with chemoradiation and BT with US-assisted tandem insertion and conformal US-based planning.…”

Section: Discussionmentioning

confidence: 99%

“…Application of US guidance during BT for cervical cancer has been used extensively in the past to reduce the complications, especially from uterine perforation that have been reported to occur in 3e10% of applications (13,14). The use of US in BT planning for cervical cancer is in clinical practice and documented in a few publications.…”

Section: Introductionmentioning

confidence: 98%

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Two-year results of transabdominal ultrasound-guided brachytherapy for cervical cancer

et al. 2015

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Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

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Two-year results of transabdominal ultrasound-guided brachytherapy for cervical cancer

et al. 2015

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“…Due to the high number of prostate cancer patients and the full curative potential of this type of cancer, many researches have been performed in order to optimize the treatment of prostate cancer (Carpenter et al 2011). Also, brachytherapy is commonly used as an effective treatment for cervical (Davidson et al 2008), breast (Shah et al 2010) and skin cancer and can also be used to treat tumours in many other body sites (Leso et al 2011). …”

Section: Introductionmentioning

confidence: 99%

Structural Analysis and Synthesis of Parallel Robots for Brachytherapy

Vaida

Plitea

Gherman

et al. 2013

New Trends in Medical and Service Robots

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Cancer represents one of the main causes of death nowadays, due to a complex set of uncontrollable natural and artificial factors. Huge efforts have been made by the entire scientific community to provide better cancer treatment solutions, all aiming to improve survival and life expectancy. An innovative option in the fight against cancer is brachytherapy (BT), called also internal radiation. BT enables to deliver higher doses of radiation to more-specific areas of the body, compared with the conventional form of radiation therapy that projects radiation from a machine outside the body. The paper presents the structural synthesis of suitable innovative parallel robots used in brachytherapy.

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“…In the case of cervix brachytherapy, the applicator can be more reliably positioned with the aid of transabdominal ultrasound guidance as reported by Davidson et al 13 They reported that 34 from 35 insertions were successfully completed with no uterine perforation. Furthermore, improvements in online imaging techniques using ultrasound guidance for HDR prostate treatments, for example, have enabled the treatment catheters to be accurately positioned and reconstructed compared with using CT imaging.…”

Section: Clinical Brachytherapy Planningmentioning

confidence: 90%

Recent developments and best practice in brachytherapy treatment planning

Lee

2014

BJR

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Brachytherapy has evolved over many decades, but more recently, there have been significant changes in the way that brachytherapy is used for different treatment sites. This has been due to the development of new, technologically advanced computer planning systems and treatment delivery techniques. Modern, three-dimensional (3D) imaging modalities have been incorporated into treatment planning methods, allowing full 3D dose distributions to be computed. Treatment techniques involving online planning have emerged, allowing dose distributions to be calculated and updated in real time based on the actual clinical situation. In the case of early stage breast cancer treatment, for example, electronic brachytherapy treatment techniques are being used in which the radiation dose is delivered during the same procedure as the surgery. There have also been significant advances in treatment applicator design, which allow the use of modern 3D imaging techniques for planning, and manufacturers have begun to implement new dose calculation algorithms that will correct for applicator shielding and tissue inhomogeneities. This article aims to review the recent developments and best practice in brachytherapy techniques and treatments. It will look at how imaging developments have been incorporated into current brachytherapy treatment and how these developments have played an integral role in the modern brachytherapy era. The planning requirements for different treatments sites are reviewed as well as the future developments of brachytherapy in radiobiology and treatment planning dose calculation. CHANGES AND DEVELOPMENTS IN TREATMENT PLANNING TECHNIQUESWithin the past few decades, there have been some major changes to the way brachytherapy treatments are both planned and delivered, and the introduction of modern, three dimensional (3D) imaging techniques have contributed significantly. In the 1930s, before the advent of planning computers, treatment planning was carried out by simply following a set of rules according to a dosimetry system such as the Manchester system. [1][2][3] This system was originally developed for use with radium sources and provided information, in tabular form, for the dose specification and distribution of sources and was used for many years. An increase in radiation safety awareness in the 1970s and 1980s led to a decline in the use of radium in favour of the relatively newer and safer radioisotopes such as caesium-137 and iridium-192. Over the same period, technological advances in afterloading techniques and the wider implementation of computerized planning using planar radiographic imaging were being implemented in an attempt to verify the applicator or catheter positions and calculate patient-specific dose. Alongside these advances, the need to compare patients' treatments with those from other treatment centres was being recognized as an important scientific standardization of treatment. The International Commission on Radiation Units and Measurements (ICRU) reports 38 and 58, 4,5 details t...

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Optimization of high-dose-rate cervix brachytherapy applicator placement: The benefits of intraoperative ultrasound guidance

Cited by 64 publications

References 22 publications

Two-year results of transabdominal ultrasound-guided brachytherapy for cervical cancer

Two-year results of transabdominal ultrasound-guided brachytherapy for cervical cancer

Structural Analysis and Synthesis of Parallel Robots for Brachytherapy

Recent developments and best practice in brachytherapy treatment planning

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