María Martorell Ruiz , Roberto M. Sánchez Casanueva , Antonio Gañán Mora , José M. Fernández-Soto
{"title":"眼科近距离放射治疗 Ru-106 斑块验收测试新设备的临床评估","authors":"María Martorell Ruiz , Roberto M. Sánchez Casanueva , Antonio Gañán Mora , José M. Fernández-Soto","doi":"10.1016/j.radmeas.2024.107343","DOIUrl":null,"url":null,"abstract":"<div><h3>Purpose</h3><div>Ophthalmic brachytherapy treats eye lesions by stitching plaques containing a radionuclide (e.g. Ru-106) onto the sclera. Compliance with quality assurance standards is crucial, but practical limitations complicate independent source strength measurement in clinical practice. In this article, a new prototype for acceptance testing of Ru-106 plaques is assayed to assess its suitability for a hospital's medical physics department.</div></div><div><h3>Methods and materials</h3><div>The system designed for Ru-106 plaque assessment includes a phantom basin fillable with water, a Si-diode for electrons coupled with an electrometer, type-dependent plaque holders and a micrometre gauge. Testing involved the measurement of three plaque types (CCA, CIB, COB) by six medical physics experts and trainees, the assessment of inter and intra-observer variability and the suitability for measurement at the reference point, 2 mm.</div></div><div><h3>Results</h3><div>Measured absorbed dose rates in water at 2 mm from the plaque surface demonstrated compatibility across all testers for the three plaques. Intra and inter-observer variability was minimal (1.0% and 1.3% of the measured value, respectively), confirming system robustness in terms of operator influence.</div></div><div><h3>Conclusions</h3><div>The system proves suitable for Ru-106 plaque acceptance testing ensuring accurate plaque positioning and dose rate verification at 2 mm. These findings confirm its potential as a support for compliance with quality assurance standards. These results are subject to the issue of the corresponding calibration certificate for the Si-diode.</div></div>","PeriodicalId":21055,"journal":{"name":"Radiation Measurements","volume":"180 ","pages":"Article 107343"},"PeriodicalIF":1.6000,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Clinical evaluation of a new device for acceptance testing of Ru-106 plaques in ophthalmic brachytherapy\",\"authors\":\"María Martorell Ruiz , Roberto M. Sánchez Casanueva , Antonio Gañán Mora , José M. Fernández-Soto\",\"doi\":\"10.1016/j.radmeas.2024.107343\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><h3>Purpose</h3><div>Ophthalmic brachytherapy treats eye lesions by stitching plaques containing a radionuclide (e.g. Ru-106) onto the sclera. Compliance with quality assurance standards is crucial, but practical limitations complicate independent source strength measurement in clinical practice. In this article, a new prototype for acceptance testing of Ru-106 plaques is assayed to assess its suitability for a hospital's medical physics department.</div></div><div><h3>Methods and materials</h3><div>The system designed for Ru-106 plaque assessment includes a phantom basin fillable with water, a Si-diode for electrons coupled with an electrometer, type-dependent plaque holders and a micrometre gauge. Testing involved the measurement of three plaque types (CCA, CIB, COB) by six medical physics experts and trainees, the assessment of inter and intra-observer variability and the suitability for measurement at the reference point, 2 mm.</div></div><div><h3>Results</h3><div>Measured absorbed dose rates in water at 2 mm from the plaque surface demonstrated compatibility across all testers for the three plaques. Intra and inter-observer variability was minimal (1.0% and 1.3% of the measured value, respectively), confirming system robustness in terms of operator influence.</div></div><div><h3>Conclusions</h3><div>The system proves suitable for Ru-106 plaque acceptance testing ensuring accurate plaque positioning and dose rate verification at 2 mm. These findings confirm its potential as a support for compliance with quality assurance standards. These results are subject to the issue of the corresponding calibration certificate for the Si-diode.</div></div>\",\"PeriodicalId\":21055,\"journal\":{\"name\":\"Radiation Measurements\",\"volume\":\"180 \",\"pages\":\"Article 107343\"},\"PeriodicalIF\":1.6000,\"publicationDate\":\"2024-11-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Radiation Measurements\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1350448724002919\",\"RegionNum\":3,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"NUCLEAR SCIENCE & TECHNOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Radiation Measurements","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1350448724002919","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"NUCLEAR SCIENCE & TECHNOLOGY","Score":null,"Total":0}
Clinical evaluation of a new device for acceptance testing of Ru-106 plaques in ophthalmic brachytherapy
Purpose
Ophthalmic brachytherapy treats eye lesions by stitching plaques containing a radionuclide (e.g. Ru-106) onto the sclera. Compliance with quality assurance standards is crucial, but practical limitations complicate independent source strength measurement in clinical practice. In this article, a new prototype for acceptance testing of Ru-106 plaques is assayed to assess its suitability for a hospital's medical physics department.
Methods and materials
The system designed for Ru-106 plaque assessment includes a phantom basin fillable with water, a Si-diode for electrons coupled with an electrometer, type-dependent plaque holders and a micrometre gauge. Testing involved the measurement of three plaque types (CCA, CIB, COB) by six medical physics experts and trainees, the assessment of inter and intra-observer variability and the suitability for measurement at the reference point, 2 mm.
Results
Measured absorbed dose rates in water at 2 mm from the plaque surface demonstrated compatibility across all testers for the three plaques. Intra and inter-observer variability was minimal (1.0% and 1.3% of the measured value, respectively), confirming system robustness in terms of operator influence.
Conclusions
The system proves suitable for Ru-106 plaque acceptance testing ensuring accurate plaque positioning and dose rate verification at 2 mm. These findings confirm its potential as a support for compliance with quality assurance standards. These results are subject to the issue of the corresponding calibration certificate for the Si-diode.
期刊介绍：
The journal seeks to publish papers that present advances in the following areas: spontaneous and stimulated luminescence (including scintillating materials, thermoluminescence, and optically stimulated luminescence); electron spin resonance of natural and synthetic materials; the physics, design and performance of radiation measurements (including computational modelling such as electronic transport simulations); the novel basic aspects of radiation measurement in medical physics. Studies of energy-transfer phenomena, track physics and microdosimetry are also of interest to the journal.
Applications relevant to the journal, particularly where they present novel detection techniques, novel analytical approaches or novel materials, include: personal dosimetry (including dosimetric quantities, active/electronic and passive monitoring techniques for photon, neutron and charged-particle exposures); environmental dosimetry (including methodological advances and predictive models related to radon, but generally excluding local survey results of radon where the main aim is to establish the radiation risk to populations); cosmic and high-energy radiation measurements (including dosimetry, space radiation effects, and single event upsets); dosimetry-based archaeological and Quaternary dating; dosimetry-based approaches to thermochronometry; accident and retrospective dosimetry (including activation detectors), and dosimetry and measurements related to medical applications.
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