A Dosage System for Interstitial Radium Therapy

Paterson, Ralston; Parker, H. M.

doi:10.1259/0007-1285-11-124-252

Cited by 107 publications

(25 citation statements)

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“…Further development led to iridium-192 incremental source HDR afterloading machines. Needle adjustment followed the principles of the Manchester and Paris systems [25,26]. The next technical improvement was the use of templates, as described by Syed & Feder [32], which still plays an important role today [5,6,24].…”

Section: Introductionmentioning

confidence: 99%

Accuracy of 3-D Needle Navigation in Interstitial Brachytherapy in Various Body Regions

Strassmann

Heyd

Cabillic-Engenhart

et al. 2002

Strahlentherapie und Onkologie

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The results of our study show that, despite effective patient immobilisation, an increase in needle positioning accuracy is limited by the method of stereotactic 3-D navigation. Effects such as modification of body shape caused by the needle application morphologic alterations, and inherent inaccuracies within the navigation system have an important influence upon accuracy, which it is not yet possible to calculate.

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Section: Introductionmentioning

confidence: 99%

Accuracy of 3-D Needle Navigation in Interstitial Brachytherapy in Various Body Regions

Strassmann

Heyd

Cabillic-Engenhart

et al. 2002

Strahlentherapie und Onkologie

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“…First, patients were treated with contac BT using radium capsulasor individual moulages, later on due to the development of radiumconsisting needles (which were larded within the tumor bed) with interstitial BT [52,53].…”

Section: Head-and-neck Tumor Lesionsmentioning

confidence: 99%

Value of Brachytherapy as Part of Interdisciplinary Therapeutic Concepts for Solid Tumor Lesions – Brachytherapeutic Options and Spectrum of Treatment Results at the Center of Radiology (Department of Radiotherapy - University Hospital of Magdeburg)

Hass¹

2016

Austin J Radiat Oncol & Cancer

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As in many other medical disciplines, a substantial change of paradigms in oncology and oncotherapy can be observed. In particular, for the treatment of solid tumor lesions the former rather rigid approach to differentiate between curative (no detection of distant metastases) and palliative intention (including systemic advancement of tumor disease) has been increasingly overcome. The concept of oligometastases has been getting more and more attention. Oligometastatic status can be classified if in first diagnosis or in follow-up investigation for tumor staging only a few distant metastases are found. According to the former guidelines, this might only lead to initiation of a palliative treatment, in the majority of cases to a systemic type of therapy! Interestingly, there has been substantial evidence that local ablation of the small number of filiae can favorably influence quality of life (the main intent of "palliative care" according to the definition by WHO) and prognosis. However, there are no predictive markers yet such as laboratory parameters, which allow to assess prognosis of a certain tumor stage / disease including oligometastases.Surgical resection was and is the gold standard of local ablation but only a certain percentage of patients with oligometastases can be approached with surgical intervention since several of them areunresectable from a technical or inoperable from an anesthesiological point of view. In addition to surgical ablation, there have been a number of non-or minimally invasive techniques available such as thermo-, chemo-and radioablading procedures.This review aims at Brachytherapy (BT) as radioablating method, its indications as part of curative concepts, the possible treatment spectrum shown in detail at the University Hospital of Magdeburg (Germany), and, in particular, indicating what is feasible and achievable from a qualitative and quantitative point of view. Finally, exemplary and representative cases document the potential benefit in radioablation of metastases.

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“…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.…”

Section: Changes and Developments In Treatment Planning Techniquesmentioning

confidence: 99%

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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A Dosage System for Interstitial Radium Therapy

Cited by 107 publications

References 0 publications

Accuracy of 3-D Needle Navigation in Interstitial Brachytherapy in Various Body Regions

Accuracy of 3-D Needle Navigation in Interstitial Brachytherapy in Various Body Regions

Value of Brachytherapy as Part of Interdisciplinary Therapeutic Concepts for Solid Tumor Lesions – Brachytherapeutic Options and Spectrum of Treatment Results at the Center of Radiology (Department of Radiotherapy - University Hospital of Magdeburg)

Recent developments and best practice in brachytherapy treatment planning

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