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Flanagan JPM, Fog LS, Astrahan MA, Talbot LJ, McKay D, Phillips C, McKenzie JD, O'Day R. Apical dose versus volume dose of Ruthenium-106 brachytherapy for uveal melanoma. CANADIAN JOURNAL OF OPHTHALMOLOGY 2024:S0008-4182(24)00074-7. [PMID: 38582499 DOI: 10.1016/j.jcjo.2024.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 02/09/2024] [Accepted: 03/12/2024] [Indexed: 04/08/2024]
Abstract
OBJECTIVE Ruthenium-106 brachytherapy is commonly used to treat uveal melanomas. Most centres prescribe a radiation dose to the tumour apex that is calculated with the tumour located in the centre of the plaque. Recent work suggests that D99%-the minimum radiation dose delivered to 99% of tumour volume-may be a better predictor of tumour control than apex dose. Both dosing regimens may be affected by tumour and treatment variables differently. We explored the effect of differences in these variables on volume and apex dose using a 3-dimensional planning model. METHODS The time required to deliver 100 Gy to the tumour apices of representative tumours ranging from 2- to 6-mm thickness with central plaque positioning was calculated in Plaque Simulator™. This treatment time was used for further calculations, including D99% with central plaque placement, and apical and tumour volume doses when tumour and plaque characteristics were altered, including eccentric plaque placement, either away from (tilt) or along (offset) scleral surface, tumour shape, and plaque type. RESULTS D99% was always greater than the apex dose when plaques were placed centrally, and the difference increased with tumour thickness. Increasing degrees of tumour offset reduced apical dose and D99%, with a greater effect on apical dose for thicker and D99% for thinner tumours, respectively. Differences in tumour shape and plaque type had idiosyncratic effects on apical and volume dosing. CONCLUSION D99% and apex dose are affected by tumour and treatment characteristics in different ways, highlighting the complexity of radiation delivery to uveal tumours.
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Affiliation(s)
- Jeremy P M Flanagan
- Ophthalmology, Department of Surgery, University of Melbourne, Melbourne (Victoria), Australia; Ocular Oncology Research Unit, Centre for Eye Research Australia, Melbourne (Victoria), Australia
| | - Lotte S Fog
- Department of Ocular Oncology, Royal Victorian Eye and Ear Hospital, Melbourne (Victoria), Australia
| | - Melvin A Astrahan
- Department of Radiation Oncology, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Lachie J Talbot
- Ophthalmology, Department of Surgery, University of Melbourne, Melbourne (Victoria), Australia
| | - Daniel McKay
- Ocular Oncology Research Unit, Centre for Eye Research Australia, Melbourne (Victoria), Australia; Department of Ocular Oncology, Royal Victorian Eye and Ear Hospital, Melbourne (Victoria), Australia
| | - Claire Phillips
- Department of Radiation Oncology, Peter MacCallum Cancer Centre, Melbourne (Victoria), Australia
| | - John D McKenzie
- Department of Ocular Oncology, Royal Victorian Eye and Ear Hospital, Melbourne (Victoria), Australia
| | - Roderick O'Day
- Ocular Oncology Research Unit, Centre for Eye Research Australia, Melbourne (Victoria), Australia; Department of Ocular Oncology, Royal Victorian Eye and Ear Hospital, Melbourne (Victoria), Australia. roderick.o'
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Stålhammar G. Brachytherapy With 15- Versus 20-mm Ruthenium 106 Plaques Without Verification of Plaque Position Is Associated With Local Tumor Recurrence and Death in Posterior Uveal Melanoma. Int J Radiat Oncol Biol Phys 2023; 117:1125-1137. [PMID: 37433377 DOI: 10.1016/j.ijrobp.2023.06.077] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 05/24/2023] [Accepted: 06/21/2023] [Indexed: 07/13/2023]
Abstract
PURPOSE Brachytherapy with episcleral plaques is the most common primary tumor treatment for uveal melanoma. This study aimed to compare the risk of tumor recurrence and metastatic death between 2 frequently used ruthenium 106 plaque designs: CCB (20.2 mm) and CCA (15.3 mm). METHODS AND MATERIALS Data were obtained from 1387 consecutive patients treated at St. Erik Eye Hospital, Stockholm, Sweden between 1981 and 2022 (439 with CCA and 948 with CCB plaques). During the period, scleral transillumination was performed to delineate tumor margins before plaque insertion, but accurate plaque positioning was not verified after scleral attachment, and no minimum scleral dose was used. RESULTS Patients treated with CCA plaques had smaller tumors than those treated with CCB plaques (mean diameter, 8.6 vs 10.5 mm; P < .001). There were no differences in patient sex, age, tumor distance to the optic disc, tumor apex dose, dose rate, or in rates of ciliary body involvement, eccentric plaque placement, or adjunct transpupillary thermotherapy (TTT). The average difference between plaque and tumor diameter was greater with the CCB plaque, and a smaller difference was an independent predictor of tumor recurrence. The 15-year incidence of tumor recurrence was 28% and 15% after treatment with CCA and CCB plaques, respectively (competing risk analysis, P < .001). Multivariate Cox regression analysis revealed a lower risk for tumor recurrence with CCB plaques (hazard ratio, 0.50). Similarly, patients treated with CCB plaques had a lower risk for uveal melanoma-related mortality (hazard ratio, 0.77). The risk for either outcome was not lower for patients treated with adjunct TTT. Uni- and multivariate time-dependent Cox regressions demonstrated that tumor recurrence was associated with uveal melanoma-related and all-cause mortality. CONCLUSIONS Compared with 20-mm plaques, brachytherapy with 15-mm ruthenium plaques is associated with a higher risk for tumor recurrence and death. These adverse outcomes may be avoided by increasing safety margins and implementing effective methods to verify accurate plaque positioning.
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Affiliation(s)
- Gustav Stålhammar
- St. Erik Eye Hospital, Stockholm, Sweden; Department of Clinical Neuroscience, Division of Ophthalmology and Vision, Unit of Ocular Oncology and Pathology, Karolinska Institutet, Stockholm, Sweden.
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Arjmand M, Ghassemi F, Rafiepour P, Zeinali R, Riazi-Esfahani H, Beiki-Ardakani A. Dosimetric Investigation of Six Ru-106 Eye Plaques by EBT3 Radiochromic Films and Monte Carlo Simulation. J Biomed Phys Eng 2023; 13:309-316. [PMID: 37609514 PMCID: PMC10440413 DOI: 10.31661/jbpe.v0i0.2010-1206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Accepted: 02/10/2021] [Indexed: 08/24/2023]
Abstract
Background Ophthalmic brachytherapy using radioactive plaques is an effective technique for the treatment of uveal melanoma. Ru-106 eye plaques are considered as interesting issue due to their steep gradient dose. The pre-planning evaluation of dosimetric parameters is essential for the treatment planning system. Objective The current study aims at providing dose distributions of six Ru-106 eye plaques (CCA, CCB, CGD, CIB, COB and COD) using radiochromic EBT3 film, Geant4 Monte Carlo toolkit and the treatment planning software (Plaque Simulator). Material and Methods In this experimental study, an in-house phantom was employed for depth dose measurements with EBT3 films. Also, Geant4.10.5 scoring mesh was implemented to obtain the 2D dose distribution of the plaques. The results were compared with Plaque Simulator software and the manufacturer's (BEBIG) data. The gamma index criterion (3%/3 mm) was used to evaluate dose distributions obtained by the film measurements and Geant4 simulation. Results A good agreement was achieved between simulation and experimental results. Gamma index passing rate was 94.2%, 89.3%, 88.2%, 82.2%, 92.2% and 90.1% for CCA, CCB, CGD, CIB, COB and COD plaques, respectively. Absolute dose rate (mGy/min) obtained by EBT3 film at the depth of 2 mm was 79.4 mGy/min, 81.0 mGy/min, 78.6 mGy/min, 62.2 mGy/min, 75.2 mGy/min and 81.2 mGy/min for CCA, CCB, CGD, CIB, COB and COD plaques, respectively. Conclusion The measured dose distributions and lateral dose profiles may be utilized in the treatment planning system to cover clinical volumes such as the clinical target volume and the gross tumor volume.
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Affiliation(s)
- Mojtaba Arjmand
- Ocular Oncology service, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Fariba Ghassemi
- Retina & Vitreous Service- Ocular Oncology Service, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Payman Rafiepour
- Department of Nuclear Engineering, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Reyhaneh Zeinali
- Department of Medical Physics, Tabriz University of Medical Science, Tabriz, Iran
| | - Hamid Riazi-Esfahani
- Ocular Oncology service, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
- Retina Service, Farabi Eye Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Akbar Beiki-Ardakani
- Radiation Medicine Program, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
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4
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O'Day RFJ, Roelofs KA, Negretti GS, Hay G, Arora AK, Stoker I, Damato BE, Sagoo MS, Cohen VML. Long-term visual outcomes after ruthenium plaque brachytherapy for posterior choroidal melanoma. Eye (Lond) 2023; 37:959-965. [PMID: 35140328 PMCID: PMC10050407 DOI: 10.1038/s41433-022-01944-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 01/11/2022] [Accepted: 01/17/2022] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND To assess the long-term visual outcomes in patients with posteriorly located choroidal melanoma treated with ruthenium plaque brachytherapy between January 2013 and December 2015. METHODS A retrospective review was conducted on consecutive patients treated with ruthenium plaque brachytherapy for post-equatorial choroidal melanoma with available Snellen visual acuity before and after treatment, and the development and treatment of radiation complications. RESULTS There were 219 patients with posterior choroidal melanoma treated with ruthenium plaque brachytherapy. Median follow up was 56.5 months, range 12-81 months. Final visual acuity was ≥6/12 in 97 (44.3%) patients, 6/12 to 6/60 in 57 (26.0%), <6/60 in 55 (25.1%) and 10 (4.6%) eyes were enucleated. Radiation maculopathy was the most common radiation complication encountered, occurring in 53 (24.2%) patients. Of these, final visual acuity was 6/12 in 10 patients (18.9%), 6/12 to 6/60 in 26 (49.1%), <6/60 in 16 (30.2%) and 1 eye (1.9%) was enucleated. Twenty-five (47%) with radiation maculopathy were treated with intravitreal anti-angiogenic therapy, 27 (51%) were monitored and one (2%) was treated with scatter photocoagulation. Eyes treated with intravitreal anti-angiogenic therapy had better final vision than those observed or treated with retinal laser (chi-square, p = 0.04). On multivariate analysis, close proximity to the optic nerve and fovea, and large or notched plaque type was associated with final vision worse than 6/12. CONCLUSION Most patients treated with ruthenium plaque brachytherapy for posterior choroidal melanoma retain 6/60 vision, with almost half retaining 6/12 vision at long term follow up.
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Affiliation(s)
- Roderick F J O'Day
- Ocular Oncology Service, Moorfields Eye Hospital, London, UK.
- Ocular Oncology Clinic, Royal Victorian Eye and Ear Hospital, Melbourne, Australia.
- Centre for Eye Research Australia, University of Melbourne, Melbourne, Australia.
| | - Kelsey A Roelofs
- Ocular Oncology Service, Moorfields Eye Hospital, London, UK
- Division of Orbital and Ophthalmic Plastic Surgery, Doheny and Stein Eye Institutes, University of California, Los Angeles, USA
| | - Guy S Negretti
- Ocular Oncology Service, Moorfields Eye Hospital, London, UK
| | - Gordon Hay
- Ocular Oncology Service, Moorfields Eye Hospital, London, UK
- NIHR Biomedical Research Centre for Ophthalmology at Moorfields Eye Hospital and University College London Institute of Ophthalmology, London, UK
| | - Amit K Arora
- Ocular Oncology Service, Moorfields Eye Hospital, London, UK
- NIHR Biomedical Research Centre for Ophthalmology at Moorfields Eye Hospital and University College London Institute of Ophthalmology, London, UK
| | - Ian Stoker
- Ocular Oncology Service, Moorfields Eye Hospital, London, UK
| | - Bertil E Damato
- Ocular Oncology Service, Moorfields Eye Hospital, London, UK
| | - Mandeep S Sagoo
- Ocular Oncology Service, Moorfields Eye Hospital, London, UK
- NIHR Biomedical Research Centre for Ophthalmology at Moorfields Eye Hospital and University College London Institute of Ophthalmology, London, UK
| | - Victoria M L Cohen
- Ocular Oncology Service, Moorfields Eye Hospital, London, UK
- NIHR Biomedical Research Centre for Ophthalmology at Moorfields Eye Hospital and University College London Institute of Ophthalmology, London, UK
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Trofimov AV, Aronow ME, Gragoudas ES, Keane FK, Kim IK, Shih HA, Bhagwat MS. A Systematic Comparison of Dose Distributions Delivered in 125I Plaque Brachytherapy and Proton Radiation Therapy for Ocular Melanoma. Int J Radiat Oncol Biol Phys 2023; 115:501-510. [PMID: 35878716 DOI: 10.1016/j.ijrobp.2022.07.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 07/06/2022] [Accepted: 07/13/2022] [Indexed: 01/11/2023]
Abstract
PURPOSE To characterize dose distributions with 125I plaque brachytherapy compared with proton radiation therapy for ocular melanoma for relevant clinical scenarios, based on tumor base diameter (d), apical height (h), and location. METHODS AND MATERIALS Plaque and proton treatment plans were created for 4 groups of cases: (1) REF: 39 instances of reference midsize circular-base tumor (d = 12 mm, h = 5 mm), in locations varying by retinal clock hours and distance to fovea, optic disc, and corneal limbus; (2) SUP: 25 superiorly located; (3) TEMP: 25 temporal; and (4) NAS: 25 nasally located tumors that were a fixed distance from the fovea but varying in d (6-18 mm) and h (3-11 mm). For both modalities, 111 unique scenarios were characterized in terms of the distance to points of interest, doses delivered to fovea, optic disc, optic nerve at 3 mm posterior to the disc (ON@3mm), lens, and retina. Comparative statistical evaluation was performed with the Mann-Whitney U test. RESULTS Superior dose distributions favored plaque for sparing of (1) fovea in large (d + h ≥ 21 mm) NAS tumors; (2) ON@3mm in REF cases located ≤4 disc diameters from disc, and in NAS overall. Protons achieved superior dose sparing of (1) fovea and optic disc in REF, SUP, and TEMP; (2) ON@3mm in REF >4 disc diameters from disc, and in SUP and TEMP; and (3) the lens center overall and lens periphery in REF ≤6 mm from the corneal limbus, and in TEMP with h = 3 mm. Although protons could completely spare sections of the retina, plaque dose was more target conformal in the high-dose range (50% and 90% of prescription dose). CONCLUSIONS Although comparison between plaque and proton therapy is not straightforward because of the disparity in dose rate, prescriptions, applicators, and delivery techniques, it is possible to identify distinctions between dose distributions, which could help inform decisions by providers and patients.
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Affiliation(s)
- Alexei V Trofimov
- Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts.
| | - Mary E Aronow
- Ocular Melanoma Center, Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts
| | - Evangelos S Gragoudas
- Ocular Melanoma Center, Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts
| | - Florence K Keane
- Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Ivana K Kim
- Ocular Melanoma Center, Retina Service, Massachusetts Eye and Ear, Department of Ophthalmology, Harvard Medical School, Boston, Massachusetts
| | - Helen A Shih
- Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Mandar S Bhagwat
- Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
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Liegl R, Schmelter V, Fuerweger C, Ehret F, Priglinger S, Muacevic A, Foerster P. Robotic CyberKnife Radiosurgery for the Treatment of Choroidal and Ciliary Body Melanoma. Am J Ophthalmol 2023; 250:177-185. [PMID: 36642391 DOI: 10.1016/j.ajo.2022.12.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 11/15/2022] [Accepted: 12/16/2022] [Indexed: 01/15/2023]
Abstract
PURPOSE To present the results of robotic-assisted radiosurgery in choroidal and ciliary body melanomas treated at the Department of Ophthalmology of Ludwig-Maximilians-University and the European CyberKnife Center in Munich, Germany. DESIGN Interventional case series METHODS: This retrospective study included 594 consecutive patients referred to our clinic for the treatment of choroidal and ciliary body melanomas with robotic radiosurgery (CyberKnife) from 2005 to 2019. Eye retention, local control and disease-specific survival rates were calculated as Kaplan-Meier and actuarial estimates. The impact of prescription dose, tumor size, and ciliary body involvement was assessed by likelihood ratio tests and Cox regression. RESULTS Among all patients who were staged according to the TNM classification system (8th edition), 22.7% were I, 57.9% were II, 18.9% were III, and 0.5% were IV. Median apical tumor height and base diameter were 5.8 and 11.4 mm. The mean follow-up was 41.7 months. Local control after 3 and 5 years was 92.0% (95% CI = 88.2%-94.7%) and 84.3% (95% CI = 77.9%-89.0%), respectively, for 21 to 22 Gy and 86.9% (95% CI = 79.7%-91.7%) and 77.7% (95% CI = 68.5%-84.6%), respectively, when treated with 20 Gy or less. Eye retention was achieved in 89.9% and 81.0% after 3 and 5 years with 21 to 22 Gy and 85.9% and 80.0% for 20 Gy or less. Disease-specific survival rates were 93.1% (95% CI = 90.2%-95.2%) after 3 years, 89.8% (95% CI = 86.0%-92.6%) after 5 years, and 87.8% (95% CI = 82.8%-91.4%) after 7 years. CONCLUSIONS This is the largest series of patients treated for choroidal and ciliary body melanomas with CyberKnife. Our results reflect an improvement in the outcome of CyberKnife therapy for patients with choroidal and ciliary body melanoma treated with single-session radiosurgery in the last decade.
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Affiliation(s)
- Raffael Liegl
- From the Department of Ophthalmology (R.L., V.S., S.P., P.F.), Ludwig-Maximilians University Munich, Munich, Germany.
| | - Valerie Schmelter
- From the Department of Ophthalmology (R.L., V.S., S.P., P.F.), Ludwig-Maximilians University Munich, Munich, Germany
| | - Christoph Fuerweger
- European Radiosurgery Center Munich (C.F., F.E., A.M.), Munich, Germany; Center for Neurosurgery (C.F.), Department of Stereotaxy and Functional Neurosurgery, University of Cologne, Cologne, Germany
| | - Felix Ehret
- European Radiosurgery Center Munich (C.F., F.E., A.M.), Munich, Germany
| | - Siegfried Priglinger
- From the Department of Ophthalmology (R.L., V.S., S.P., P.F.), Ludwig-Maximilians University Munich, Munich, Germany
| | | | - Paul Foerster
- From the Department of Ophthalmology (R.L., V.S., S.P., P.F.), Ludwig-Maximilians University Munich, Munich, Germany
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7
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Liakopoulos DA, Perisinakis K, Solomou G, Kouvidakis A, Drakonaki EE, Bontzos G, Papadaki E, Detorakis ET. Individualized dosimetry in Ru-106 ophthalmic brachytherapy based on MRI-derived ocular anatomical parameters. Brachytherapy 2022; 21:904-911. [PMID: 35995724 DOI: 10.1016/j.brachy.2022.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 06/01/2022] [Accepted: 07/01/2022] [Indexed: 12/14/2022]
Abstract
PURPOSE To estimate ocular geometry-related inaccuracies of the dosimetric plan in Ru-106 ophthalmic brachytherapy. METHODS AND MATERIALS Thirty patients with intraocular lesions were treated with brachytherapy using a Ru-106 plaque-shell of inner radius of 12 mm. Magnetic resonance imaging was employed to determine the external scleral radius at tumor site and the tumor margins. A mathematical model was developed to determine the distance between the external sclera and the internal surface of the plaque associated with the tangential application of the plaque on the treated eye. Differences in delivered dose to the tumor apex, sclera and tumor margins as derived by considering the default eye-globe of standard size (external sclera radius = 12 mm) against the individual-specific eye globe were determined. RESULTS The radius of external sclera at the tumor site was found to range between 10.90 and 13.05 mm for the patient cohort studied. When the patient specific eye-globe/tumor geometry is not taken into account, the delivered dose was found to be overestimated by 8.1% ± 4.1% (max = 15.3%) at tumor apex, by 1.5% ± 2.8% (max = 5.7%) at anterior tumor margin, by 16.6% ± 7.5% (max = 36.4%) at posterior tumor margin and 8.1% ± 3.8% (max = 13.2%) at central sclera of eyes with lower than the default radius. The corresponding dose overestimations for eyes with higher than the default radius was 13.5% ± 4.3% (max = 22.3%), 1.5% ± 2.8% (max = 5.7%), 12.6% ± 4.5% (max = 20.0%), and 15.1% ± 5.0% (max = 24.4%). CONCLUSIONS The proposed patient-specific approach for Ru-106 brachytherapy treatment planning may improve dosimetric accuracy. Individualized treatment planning dosimetry may prevent undertreatment of intraocular tumors especially for highly myopic or hyperopic eyes.
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Affiliation(s)
| | - Kostas Perisinakis
- Department of Medical Physics, University of Crete, Medical School, Heraklion, Crete, Greece; Computational BioMedicine Laboratory (CBML), Foundation for Research and Technology-Hellas (FORTH), Heraklion, Greece
| | - Georgia Solomou
- Department of Medical Physics, University of Crete, Medical School, Heraklion, Crete, Greece
| | | | | | | | - Efrosini Papadaki
- Department of Radiology, University Hospital of Heraklion, Crete, Greece
| | - Efstathios T Detorakis
- Department of Ophthalmology, Medical School, University of Crete, Heraklion, Crete, Greece
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Brachytherapy in organ-preserving treatment of choroidal melanoma: complications and the possibility of their prediction. ACTA BIOMEDICA SCIENTIFICA 2021. [DOI: 10.29413/abs.2021-6.6-1.4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This review analyzed the domestic and foreign literature on brachytherapy of choroidal melanoma using ruthenium ophthalmic applicators. The review highlights the historical aspects of radiation treatment, from the first experience of using ionizing radiation in the treatment of malignant neoplasms to modern methods of brachytherapy; presents the radiobiological foundations of radiation therapy; considers the issues of radiation pathomorphosis, reflecting the nature of pathological changes in the choroidal melanoma tissue during brachytherapy; shows the dependence of the effect of exposure ionizing radiation from the phase of the cycle of cell division; and also describes the presence of changes characteristic of the response to ionizing radiation in unirradiated tissues. The analysis of various post-radiation complications, both early and late, was carried out in some detail, with emphasis on the possibility of predicting and preventing them in real clinical practice. A comparison is made in terms of the frequency of development of various post-radiation complications in the works of domestic and foreign authors, as well as a comparison with the effect of ionizing radiation from other radioactive isotopes. Recommendations of experts are given regarding the correct calculation of the dose to the sclera and medication support, based on many years of experience in the use of ruthenium ophthalmic applicators for brachytherapy of choroidal melanoma. The risks of developing such late complications as radiation maculopathy and radiation neuropathy have been demonstrated, especially in pre-equatorial tumor localization. The possibilities of modern methods of instrumental diagnostics for studying the processes occurring in the area of the tumor, as well as changes in the surrounding tissues, are shown, which determines the feasibility and importance of further study of this issue.
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9
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Shah C, Vicini F, Beriwal S, Thaker N, Frank SJ, Rossi P, Orio P, Chang AJ, Joshi N, Campbell SR, Naghavi A, Chao S, Kamrava M, Deufel CL, Mourtada F, Suh JH. American brachytherapy society radiation oncology alternative payment model task force: Quality measures and metrics for brachytherapy. Brachytherapy 2021; 21:63-74. [PMID: 34732290 DOI: 10.1016/j.brachy.2021.10.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 09/26/2021] [Accepted: 10/05/2021] [Indexed: 12/21/2022]
Abstract
PURPOSE Brachytherapy is an essential technique to deliver radiation therapy and is involved in the treatment of multiple disease sites as monotherapy or as an adjunct to external beam radiation therapy. With a growing focus on the cost and value of cancer treatments as well new payment models, it is essential that standardized quality measures and metrics exist to allow for straightforward assessment of brachytherapy quality and for the development of clinically significant and relevant clinical data elements. We present the American Brachytherapy Society consensus statement on quality measures and metrics for brachytherapy as well as suggested clinical data elements. METHODS AND MATERIALS Members of the American Brachytherapy Society with expertise in disease site specific brachytherapy created a consensus statement based on a literature review and clinical experience. RESULTS Key quality measures (ex. workup, clinical indications), dosimetric metrics, and clinical data elements for brachytherapy were evaluated for each modality including breast cancer, cervical cancer, endometrial cancer, prostate cancer, keratinocyte carcinoma, soft tissue sarcoma, and uveal melanoma. CONCLUSIONS This consensus statement provides standardized quality measures and dosimetric quality metrics as well as clinical data elements for each disease site to allow for standardized assessments of brachytherapy quality. Moving forward, a similar paradigm can be considered for external beam radiation therapy as well, providing comprehensive radiation therapy quality measures, metrics, and clinical data elements that can be incorporated into new payment models.
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Affiliation(s)
- Chirag Shah
- Department of Radiation Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH.
| | | | - Sushil Beriwal
- Department of Radiation Oncology, UPMC Hillman cancer Center, Pittsburgh, PA
| | - Nikhil Thaker
- Division of Radiation Oncology, Arizona Oncology, Tucson, AZ
| | - Steven J Frank
- Department of Radiation Oncology, MD Anderson Cancer Center, Houston, TX
| | | | - Peter Orio
- Department of Radiation Oncology, Dana Farber Cancer Institute, Boston, MA
| | - Albert J Chang
- Department of Radiation Oncology, University of California Los Angeles, Los Angeles, CA
| | - Nikhil Joshi
- Department of Radiation Oncology, Rush University, Chicago, IL
| | - Shauna R Campbell
- Department of Radiation Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH
| | - Arash Naghavi
- Department of Radiation Oncology, Moffitt Cancer Center, Tampa, FL
| | - Samuel Chao
- Department of Radiation Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH
| | - Mitchell Kamrava
- Department of Radiation Oncology, Cedars-Sinai Medical Center, Los Angeles, CA
| | | | - Firas Mourtada
- Department of Radiation Oncology, Helen F. Graham Cancer Center, ChristianaCare, Newark, DE
| | - John H Suh
- Department of Radiation Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH
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10
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Fili M, Astrahan M, Stålhammar G. Long-term outcomes after enucleation or plaque brachytherapy of choroidal melanomas touching the optic disc. Brachytherapy 2021; 20:1245-1256. [PMID: 34253461 DOI: 10.1016/j.brachy.2021.05.162] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 05/13/2021] [Accepted: 05/27/2021] [Indexed: 11/17/2022]
Abstract
PURPOSE To investigate local and systemic outcomes after enucleation, brachytherapy with ruthenium-106, iodine-125, notched and non-notched plaques and transpupillary thermotherapy (TTT) of choroidal melanomas touching the optic disc. METHODS AND MATERIALS All patients treated for choroidal melanoma touching the optic disc at St. Erik Eye Hospital, Stockholm, Sweden between 1984 and 2015 (n = 165) were included. Retrospective clinicopathological data was collected and 3D dosimetry performed. RESULTS Ninety-five patients (58 %) had been treated with ruthenium-106 brachytherapy, 21 (13 %) with iodine-125 brachytherapy and 49 (30 %) with enucleation. Median follow-up was 12.3 years. In simulations, some tumor areas were underdosed with non-notched plaques. Fifty of 116 patients (43 %) underwent a secondary brachytherapy (n = 5), enucleation (n = 29) or TTT (n = 16). In multivariate Cox Regressions, there were no significant differences in the risk for tumor progression or lack of regression between radioisotopes and notched and non-notched plaques. Adding TTT did not reduce the risk for a second treatment. The number of clock hours of circumpapillary tumor growth did not correlate to the risk for treatment failure or mortality. There were no significant differences in melanoma-related mortality for any treatment including enucleation. Kaplan-Meier disease-specific survival was 77 % at 5 years, 72 % at 10 years and 67 % at 20 years. CONCLUSION Plaque brachytherapy of choroidal melanomas touching the optic disc entails a two to threefold increased risk for treatment failure. This risk is similar between radioisotopes, notched and non-notched plaque designs and if TTT is used or not. The high rate of treatment failure does not lead to increased mortality.
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Affiliation(s)
- Maria Fili
- Ophthalmic Pathology and Oncology Service, St. Erik Eye Hospital, Stockholm, Sweden; Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Melvin Astrahan
- Department of Radiation Oncology, Keck School of Medicine, University of Southern California, Los Angeles, CA
| | - Gustav Stålhammar
- Ophthalmic Pathology and Oncology Service, St. Erik Eye Hospital, Stockholm, Sweden; Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.
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Abstract
Retinoblastoma in children and uveal melanoma in adults can pose a serious threat to both vision and life. For many decades, enucleation was often the only option to treat these intraocular malignancies. For retinoblastoma, intra-arterial chemotherapy is often utilized as the primary treatment at advanced academic centers and has dramatically improved local tumor control and eye salvage rates. For uveal melanoma, both plaque brachytherapy and proton beam irradiation have served as widely utilized therapies with a local failure rate of approximately 1–10%, depending on the series. Major recent advancements have allowed for a better understanding of the genomics of uveal melanoma and the impact of certain mutations on metastatic susceptibility. Gene expression profile stratifies uveal melanomas into two classes: low-risk (class 1) and high-risk (class 2). A loss-of-function mutation of BAP1 is associated with a class 2 gene expression profile and therefore confers worse prognosis due to elevated risk of metastasis. On the other hand, gain-of-function mutations of EIF1AX and SF3B1 correspond to a gene expression profile of class 1A and class 1B and confer a better prognosis. Preferentially expressed antigen in melanoma (PRAME) is an antigen that increases metastatic susceptibility when expressed in uveal melanoma cells. In addition to plaque brachytherapy and proton beam irradiation, both of which have demonstrated superb clinical outcomes, scientists are actively investigating newer therapeutic modalities as either primary therapy or adjuvant treatment, including a novel nanoparticle therapy and immunotherapy.
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Affiliation(s)
- Amy C Schefler
- Retina Consultants of Texas, Houston, Texas, USA
- Blanton Eye Institute, Houston, Texas, USA
| | - Ryan S Kim
- Retina Consultants of Texas, Houston, Texas, USA
- McGovern Medical School, University of Texas Health Science Center at Houston, Houston, Texas, USA
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12
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Efficacy and complications of ruthenium-106 brachytherapy for uveal melanoma: a systematic review and meta-analysis. J Contemp Brachytherapy 2021; 13:358-364. [PMID: 34122577 PMCID: PMC8170514 DOI: 10.5114/jcb.2021.106191] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 02/26/2021] [Indexed: 02/03/2023] Open
Abstract
Purpose The aim of this study was to evaluate the efficacy and vision-threatening complications of brachytherapy with ruthenium-106 (106Ru) plaque to treat uveal melanoma. Material and methods A literature review was performed based on results from searching PubMed, Embase, Web of Science, Scopus, and Cochrane databases, using the following key words: “choroidal melanoma”, “uveal melanoma”, “brachytherapy”, and “ruthenium-106”. We included studies performed on more than 30 patients since 1986, reporting on local control rate, complications rate, mean radiation dose, and mean tumor thickness. The cumulative analysis was performed using Metaprop command of Stata v.16, and meta-regression was conducted based on mean tumor thickness and mean radiation dose to tumor’s apex. Results Twenty-one retrospective studies were selected, involving 3,913 patients treated primarily with 106Ru plaque brachytherapy. The range of radiation dose to tumor apex was from 70 Gy to 250 Gy. The local control rate following brachytherapy ranged from 59% to 98%, and the overall weighted mean of local control was 84%. However, the heterogeneity between studies’ reports was remarkable (I2 = 95.40%). Meta-regression based on tumor thickness and mean dose of radiation to the apex showed that the studies’ heterogeneity was minimally related to the difference in mean tumor size (I2 = 92%). The correlation between larger tumor size and lower local control rate was statistically significant (p-value = 0.024). There was no significant correlation between the mean radiation dose and local control rate (p-value = 0.679). The most commonly reported complications were cataract and radiation-related retinopathy. Conclusions Although the studies’ heterogeneity was high, in a prescription dose ranging from 70 Gy to 250 Gy to the tumor apex, 106Ru brachytherapy seems to be successful in local control of uveal melanoma. The efficacy of 106Ru in controlling uveal melanomas decreased with the increase in tumor thickness. However, these outcomes should be verified in randomized comparative studies.
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13
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Jabbarli L, Guberina M, Biewald E, Flühs D, Guberina N, Le Guin CHD, Sauerwein W, Bornfeld N, Stuschke M, Bechrakis NE. Scleral necrosis after brachytherapy for uveal melanoma: Analysis of risk factors. Clin Exp Ophthalmol 2021; 49:357-367. [PMID: 33866652 DOI: 10.1111/ceo.13928] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 03/27/2021] [Accepted: 03/30/2021] [Indexed: 11/30/2022]
Abstract
BACKGROUND Radiation-induced scleral necrosis (RISN) is a rare, but a serious complication of brachytherapy for uveal melanoma. We aimed at analysing the incidence, timing and risk factors associated with development of RISN in a large institutional series. METHODS All consecutive cases with brachytherapy for uveal melanoma treated by the Departments of Ophthalmology and Radiotherapy at University Hospital Essen between 1999 and 2016 were eligible. Development of RISN during the post-treatment follow-up was recorded. A 1:2 propensity score matched case-control study was performed for the evaluation of the prognostic value of different tumour- and treatment-associated parameters. RESULTS RISN was documented in 115 (2.9%) of 3960 patients with uveal melanoma included in the final analysis, and occurred at the mean 30.3 months (range: 1.26-226 months) after brachytherapy. In the whole cohort, younger age (p = 0.042), plaque type (p = 0.001) and ciliary body involvement (p < 0.0001) were independently associated with the RISN occurrence. In the case-control study, multivariable weighted proportional hazard analysis discovered the association of the following additional tumour- and treatment-associated characteristics with RISN: posterior tumour margin anterior to equatorial region (p = 0.0003), extraocular tumour extension (p = <0.0001), scleral contact dose (p = <0.0001), conjunctival dehiscence after therapy (p = 0.0001), disinsertion of the superior rectus muscle (p = 0.001) and the glaucoma medication (p = 0.014). CONCLUSIONS Our study confirms RISN as a rare complication, which might occur even years later after the brachytherapy for uveal melanoma. Alongside with scleral dose five other tumour and therapy related factors predict the risk of RISN after brachytherapy for uveal melanoma were established.
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Affiliation(s)
- Leyla Jabbarli
- Department of Ophthalmology, University Hospital of Essen, Essen, Germany
| | - Maja Guberina
- Department of Radiotherapy, University Hospital of Essen, Essen, Germany
| | - Eva Biewald
- Department of Ophthalmology, University Hospital of Essen, Essen, Germany
| | - Dirk Flühs
- Department of Radiotherapy, University Hospital of Essen, Essen, Germany
| | - Nika Guberina
- Department of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Essen, Germany
| | | | - Wolfgang Sauerwein
- Department of Radiotherapy, University Hospital of Essen, Essen, Germany
| | - Norbert Bornfeld
- Department of Ophthalmology, University Hospital of Essen, Essen, Germany
| | - Martin Stuschke
- Department of Radiotherapy, University Hospital of Essen, Essen, Germany.,German Cancer Consortium (DKTK), Heidelberg, Partner Site University Hospital Essen, Essen, Germany
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14
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Jiang P, Purtskhvanidze K, Kandzia G, Neumann D, Luetzen U, Siebert FA, Roider J, Dunst J. 106Ruthenium eye plaque brachytherapy in the management of medium sized uveal melanoma. Radiat Oncol 2020; 15:183. [PMID: 32727533 PMCID: PMC7392724 DOI: 10.1186/s13014-020-01621-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2020] [Accepted: 07/15/2020] [Indexed: 12/29/2022] Open
Abstract
Background To evaluate 106Ruthenium Brachytherapy in management of medium sized uveal melanoma, with emphasis on 5-year outcome and toxicity. Methods From April 2007 to October 2015, 39 patients with medium sized uveal melanoma were treated with 106 Ru eye plaques brachytherapy. At the time of diagnosis, the mean tumor depth was 3.7 mm (±SD:1.6 mm). The mean dose at the tumor apex was 141.4 Gy (± SD: 12.1 Gy) and 557.7 Gy (± SD: 257.3 Gy) to the sclera. Results Mean follow-up was 69.5 months (± SD: 53.8 months). Thirty-four patients (87.1%) remained free of recurrence. Twenty-six patients (66.7%) demonstrated a complete tumor regression after a median period of 12 months (3–60 mon.). By the final examination, the visual acuity of 26 patients (66.7%) was better than 20/200, and 12 patients (30.7%) had a visual acuity better than 20/40. Retinopathy was detected in 11 patients (28.2%). After treatments only one patient (5.1%) had active vascular changes by the last examination. Moderate optic neuropathy was observed in 4 patients (10.3%). Cataract development was diagnosed in 21 patients (53.8%), and 16 patients (41%) had bilateral cataract development. Special emphasis was made on patients with larger tumors. Twelve out of the 39 patients had a tumor with a depth of 5 mm or more. There was no significant difference in local control or in side effects between both groups observed. Conclusions Our study proved 106Ru -brachytherapy to be an excellent treatment option with regard to tumor control and preservation of the visual acuity in well-selected patients. Our data suggested that this treatment is also suitable for tumors with a depth of more than 5 mm.
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Affiliation(s)
- Ping Jiang
- University Clinic for Medical Radiation Physics, Medical Campus Pius-Hospital, Carl von Ossietzky University, Georgstrasse 12, Oldenburg, Germany.
| | | | - Gerit Kandzia
- Department of Radiation Oncology, University Clinic Schleswig-Holstein, Campus Kiel, Germany
| | - Dirk Neumann
- Department of Radiation Oncology, University Clinic Schleswig-Holstein, Campus Kiel, Germany
| | - Ulf Luetzen
- Department of Nuclear Medicine, University Clinic Schleswig-Holstein, Campus Kiel, Germany
| | - Frank-André Siebert
- Department of Radiation Oncology, University Clinic Schleswig-Holstein, Campus Kiel, Germany
| | - Johann Roider
- Department of Ophthalmology, University Clinic Schleswig-Holstein, Campus Kiel, Germany
| | - Juergen Dunst
- University Clinic for Medical Radiation Physics, Medical Campus Pius-Hospital, Carl von Ossietzky University, Georgstrasse 12, Oldenburg, Germany.,Department of Radiation Oncology, University Clinic Schleswig-Holstein, Campus Kiel, Germany
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Quantitative analysis of Gamma Knife stereotactic radiosurgery for uveal melanoma. POLISH JOURNAL OF MEDICAL PHYSICS AND ENGINEERING 2020. [DOI: 10.2478/pjmpe-2020-0012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
The purpose of the study was to analyze single fraction Gamma Knife stereotactic radiosurgery (SRS) for uveal melanoma (UM). In the treatment of UMs, the dose distribution exhibited by an irregular eye surface has more calculation uncertainty. A tissue-equivalent bolus was placed on the left eye surface of a human head-shaped phantom. It was assumed that the treated eye is fixed using retrobulbar anesthesia and suture on extraocular muscles for phantom study. Leksell stereotactic frame was fixed around phantom’s head and the stereotactic computed tomography (CT) was performed. Two sets of scans were acquired (a) without bolus and (b) with a bolus of 1.0 cm thickness. These scans were transferred into a treatment planning system (TPS). The skull contouring was performed using stereotactic CT images. The target, visual pathways, and eye lens were delineated in stereotactic CT space created on TPS. A clinical relevant plan was designed on the CT study set “a” to deliver a radiation dose of 30Gy at tumor margin. The plan superimposed over CT study set “b” and compiled for convincing treatment strategy. The tumor coverage was 95% at 50% prescription isodose line. The conformity index, selectivity and the gradient index were 1.27, 0.80 and 3.28 respectively. The left optic nerve and eye lens received a maximum dose of 11.1 Gy and 11.0 Gy respectively. The treatment plan overlay showed similar planning indices and critical organ doses. The plan comparison showed: an irradiated volume received the radiation dose > 15 Gy varies < 1.0% whereas the volume received < 15 Gy were larger (> 1.0%) in the study set “b”. The distant lateral points from the target volume which describe the phantom’s eyelid showed a radiation dose of 3.2 Gy - 2.5 Gy. The doses to these points were misled and ignored in the CT study set “a”. The eye bolus provides better dosimetric information in the estimation of low dose areas which is commonly misled on TPS in SRS planning for UMs.
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16
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Karimi S, Pahlevani P. Tapioca Melanoma of the Iris: A Case Report. J Ophthalmic Vis Res 2019; 14:376-381. [PMID: 31660116 PMCID: PMC6815328 DOI: 10.18502/jovr.v14i3.4794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 08/20/2018] [Indexed: 11/24/2022] Open
Abstract
Purpose To report an extremely rare case of tapioca melanoma of the iris in an Iranian patient. Case Report A 50-year-old male patient presented with ocular pain and redness in the right eye for two weeks. The visual acuity was 7/10 and the intraocular pressure (IOP) was 30 mmHg. A lobulated amelanotic vascularized and nodular (tapioca-like) iris mass with a 180o extent was seen in the right eye. Incisional biopsy of the mass revealed atypical mixed type (epithelioid and spindle cell) melanoma. Brachytherapy with the ruthenium-106 plaque resulted in complete regression of the tumor. Conclusion Tapioca melanoma of the iris should be considered in the differential diagnosis of patients presenting with nodular vascularized amelanotic iris mass and elevated IOP. Brachytherapy with ruthenium-106 seems to be an effective treatment for tapioca melanoma of the iris.
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Affiliation(s)
- Saeed Karimi
- Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Ophthalmology, Torfeh Medical Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Pouyan Pahlevani
- Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Ophthalmology, Torfeh Medical Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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17
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Filì M, Trocme E, Bergman L, See TRO, André H, Bartuma K, Girnita L, All-Eriksson C, Seregard S, Stålhammar G. Ruthenium-106 versus iodine-125 plaque brachytherapy of 571 choroidal melanomas with a thickness of ≥5.5 mm. Br J Ophthalmol 2019; 104:26-32. [DOI: 10.1136/bjophthalmol-2018-313419] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 02/08/2019] [Accepted: 03/05/2019] [Indexed: 02/03/2023]
Abstract
BackgroundEpiscleral brachytherapy is the most common eye-preserving treatment for medium-sized choroidal melanomas. γ-emitting iodine-125 (125I) and β-emitting ruthenium-106 (106Ru) are widely used. The latter is however generally reserved for thinner tumours (<6 mm). In this study, we compare ocular and patient survival in thicker tumours treated with the respective radioisotope.MethodsAll patients with ≥5.5 mm thick choroidal melanomas who were treated with plaque brachytherapy at a single institution between 1 November 1979 and 31 December 2015 were included (n=571). Size-controlled Cox regression HRs for postbrachytherapy enucleation, repeated brachytherapy and melanoma-related mortality were calculated, as well as Kaplan-Meier disease-specific survival and relative 10-year survival in matched subgroups.Results317 patients were treated with 106Ru and 254 with 125I. The rate of repeated brachytherapy was significantly higher among patients treated with 106Ru (8%) than with 125I (1%, p<0.001). Size-controlled Cox regression HRs for postbrachytherapy enucleation (125I vs 106Ru 0.7, p=0.083) and melanoma-related mortality were not significant (125I vs 106Ru 1.1, p=0.63). Similarly, Kaplan-Meier disease-specific and relative 10-year survival was comparable in matched groups of 5.5–7.4 mm (relative survival 106Ru 59%, 125I 56%) and ≥7.5 mm thick tumours (relative survival 106Ru 46%, 125I 44%).ConclusionsRates of repeated brachytherapy were significantly higher among patients treated with 106Ru versus 125I for thick choroidal melanomas. There were, however, no significant differences in rates of enucleation or patient survival.
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18
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Comparative outcomes and toxicities for ruthenium-106 versus palladium-103 in the treatment of choroidal melanoma. Melanoma Res 2019; 28:120-125. [PMID: 29303890 DOI: 10.1097/cmr.0000000000000420] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
For the treatment of choroidal melanoma, palladium-103 (Pd) and ruthenium-106 (Ru) plaque brachytherapy shows reduced toxicity compared with the historical standard iodine-125. No report has directly compared the clinical outcomes between Pd and Ru, and the reasons for the selection of one over the other remain purely theoretical. Patients with choroidal melanoma with apical tumor height up to 5 mm were included. Patients from Emory University were treated with Pd between 1993 and 2012. Patients from Cleveland Clinic were treated with Ru between 2005 and 2010. Medical records were retrospectively reviewed. We compared post-treatment visual acuity (VA), toxicity, and oncologic outcomes. Pd patients (n=124) and Ru patients (n=42) had a median follow-up of 4.2 and 5.0 years, respectively. Radiation retinopathy-free survival was similar for both radioisotopes, but Ru had lower grades of retinopathy (P=0.006). Pd was associated with worse VA preservation (≥20/40) by year 3 (odds ratio: 3.8; 95% confidence interval: 1.01-14.31, P=0.048). Pd was associated with higher distant metastases-free survival (DMFS) in multivariate analysis (hazard ratio: 0.10; 95% confidence interval: 0.02-0.38; P<0.001). Ru had lower grades of radiation retinopathy and improved long-term VA preservation, but also inferior DMFS, compared with Pd. Because of the inherent limitations of a retrospective analysis, the significance of the inferior DMFS for Ru remains unclear, although the suggestion of a slight inferiority in terms of DMFS for Ru is consistent with the other limited literature. On the basis of this study, we believe that both radioisotopes remain appropriate for the treatment of small choroidal melanomas up to 5 mm in apical height.
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AlMahmoud T, Quinlan-Davidson S, Pond GR, Deschênes J. Outcome Analysis of Visual Acuity and Side Effect after Ruthenium-106 Plaque Brachytherapy for Medium-sized Choroidal Melanoma. Middle East Afr J Ophthalmol 2018; 25:103-107. [PMID: 30122856 PMCID: PMC6071343 DOI: 10.4103/meajo.meajo_198_16] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
PURPOSE: The purpose of this study is to report on treatment outcomes for medium-sized choroidal melanoma treated with Ruthenium-106 (Ru-106) plaque brachytherapy. METHODS: A retrospective case series of 28 patients received Ru-106 brachytherapy treatment for choroidal melanoma. The prescribed tumor dose was 85 Gy to a depth of 5 mm. RESULTS: Median follow-up was 31.2 months. At 12 and 24-month postirradiation, the best corrected visual acuity ≥20/70 (LogMar ≥−0.54) was 53.8% and 64.2%, respectively. Median time to tumor regression was estimated to be 10 months (95% CI = 9–18 months), with 100% of response rate by 32 months. Radiation-induced side effects were limited, and there were no postradiation enucleations. CONCLUSIONS: The majority of patients maintained good visual acuity, with no enucleations and minimal side effects. In this cohort, the Ru-106 plaque brachytherapy proved to be an efficacious and safe treatment option for patients with medium-sized choroidal melanomas with a maximal tumor height of 5 mm.
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Affiliation(s)
- Tahra AlMahmoud
- Department of Surgery, Collage of Medicine and Health Sciences, United Arab Emirates University, Al Ain, UAE.,Department of Ophthalmology, Royal Victoria Hospital, McGill University, Montreal, Quebec, Canada
| | - Sean Quinlan-Davidson
- Department of Radiation Oncology, Juravinski Cancer Centre, McMaster University, Hamilton, Ontario, Canada
| | - Gregory R Pond
- Department of Oncology, Henderson Research Unit, McMaster University, Hamilton, Ontario, Canada
| | - Jean Deschênes
- Department of Ophthalmology, Royal Victoria Hospital, McGill University, Montreal, Quebec, Canada
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21
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Sorour OA, Mignano JE, Duker JS. Gamma Knife radiosurgery for locally recurrent choroidal melanoma following plaque radiotherapy. Int J Retina Vitreous 2018; 4:23. [PMID: 29942651 PMCID: PMC5998456 DOI: 10.1186/s40942-018-0123-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Accepted: 05/09/2018] [Indexed: 02/03/2023] Open
Abstract
Background For the majority of eyes with choroidal melanoma, radiation therapy is the treatment of choice. Local recurrence after radiation therapy can occur, however, and when it does, salvaging the globe with useful vision is atypical. Case presentation We report a case of late, local failure 7 years following previous brachytherapy successfully managed with Gamma Knife radiosurgery (GKR). With 3 years of follow up after GKR, the visual acuity is 20/20 and there is no evidence of systemic metastases. Conclusion To our knowledge, this is the first report of successful salvage GKR therapy after brachytherapy failure in an eye with choroidal melanoma. GKR is an option for select cases of local recurrence after radiation plaque brachytherapy.
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Affiliation(s)
- Osama A Sorour
- 1New England Eye Center, Department of Radiation Oncology, Tufts Medical Center, Tufts University School of Medicine, Boston, MA USA.,2Ophthalmology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - John E Mignano
- 1New England Eye Center, Department of Radiation Oncology, Tufts Medical Center, Tufts University School of Medicine, Boston, MA USA
| | - Jay S Duker
- 1New England Eye Center, Department of Radiation Oncology, Tufts Medical Center, Tufts University School of Medicine, Boston, MA USA
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Retina dose as a predictor for visual acuity loss in 106 Ru eye plaque brachytherapy of uveal melanomas. Radiother Oncol 2018; 127:379-384. [DOI: 10.1016/j.radonc.2017.11.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 09/22/2017] [Accepted: 11/20/2017] [Indexed: 12/20/2022]
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Nomogram for predicting radiation maculopathy in patients treated with Ruthenium-106 plaque brachytherapy for uveal melanoma. J Contemp Brachytherapy 2017; 9:540-547. [PMID: 29441098 PMCID: PMC5807992 DOI: 10.5114/jcb.2017.71795] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Accepted: 11/06/2017] [Indexed: 01/08/2023] Open
Abstract
Purpose To develop a predictive model and nomogram for maculopathy occurrence at 3 years after 106Ru/106Rh plaque brachytherapy in uveal melanoma. Material and methods Clinical records of patients affected by choroidal melanoma and treated with 106Ru/106Rh plaque from December 2006 to December 2014 were retrospectively reviewed. Inclusion criteria were: dome-shaped melanoma, distance to the fovea > 1.5 mm, tumor thickness > 2 mm, and follow-up > 4 months. The delivered dose to the tumor apex was 100 Gy. Primary endpoint of this investigation was the occurrence of radiation maculopathy at 3 years. Analyzed factors were as follows: gender, age, diabetes, tumor size (volume, area, largest basal diameter and apical height), type of plaque, distance to the fovea, presence of exudative detachment, drusen, orange pigment, radiation dose to the fovea and sclera. Univariate and multivariate Cox proportional hazards analyses were used to define the impact of baseline patient factors on the occurrence of maculopathy. Kaplan-Meier curves were used to estimate freedom from the occurrence of the maculopathy. The model performance was evaluated through internal validation using area under the ROC curve (AUC), and calibration with Gronnesby and Borgan tests. Results One hundred ninety-seven patients were considered for the final analysis. Radiation-related maculopathy at 3 years was observed in 41 patients. The proposed nomogram can predict maculopathy at 3 years with an AUC of 0.75. Distance to fovea appeared to be the main prognostic factor of the predictive model (hazard ratio of 0.83 [0.76-0.90], p < 0.01). Diabetes (hazard radio of 2.92 [1.38-6.20], p < 0.01), and tumor volume (hazard radio of 21.6 [1.66-281.14], p = 0.02) were significantly predictive for maculopathy occurrence. The calibration showed no statistical difference between actual and predicted maculopathy (p = 1). Conclusions Our predictive model, together with its nomogram, could be a useful tool to predict the occurrence of radiation maculopathy at 3 years after the treatment.
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Pagliara MM, Tagliaferri L, Azario L, Lenkowicz J, Lanza A, Autorino R, Caputo CG, Gambacorta MA, Valentini V, Blasi MA. Ruthenium brachytherapy for uveal melanomas: Factors affecting the development of radiation complications. Brachytherapy 2017; 17:432-438. [PMID: 29275868 DOI: 10.1016/j.brachy.2017.11.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Revised: 11/02/2017] [Accepted: 11/03/2017] [Indexed: 02/03/2023]
Abstract
PURPOSE To investigate how treatment complications are related to dosimetric parameters after ruthenium-106 brachytherapy for uveal melanoma, in a large, clinically homogeneous population. METHODS AND MATERIALS A retrospective review was performed to evaluate patients affected by small and medium size uveal melanoma, treated with ruthenium-106 brachytherapy from December 2006 to December 2014. We excluded tumors with posterior margin within 1 mm from the edge of the optic disc and foveola. Main outcome measures were occurrence and time to radiation-related maculopathy, cataract, and optic neuropathy. Secondary end points included local recurrence and distant metastases. Kaplan-Meier analysis with log-rank test and univariate Cox proportional hazards model at 3 years were performed to identify the covariates affecting the outcome of radiation complications. RESULTS Two hundred thirty-nine patients, with sufficient data to evaluate the end points, were enrolled. Three years after plaque treatment, radiation maculopathy was found in 61 (25.5%) patients, cataract developed in 10 patients (4.2%) receiving a dose of 27 Gy or higher to the lens, and optic neuropathy was observed in 13 patients (5.4%) with an optic nerve dose exceeding 50 Gy and tumor proximity to optic disc of less than 4 mm. Tumor recurrences and tumor-related metastasis were found respectively in 20 (8.36%) and 14 (5.85%) patients. CONCLUSIONS Radiation maculopathy occurs within a median time of 31 months in 25% of cases after plaque treatment for uveal melanoma. The most significant risk factors are total dose and distance of tumor margin from the fovea. If the distance is greater than 11.22 mm, no signs of retinal damage are detected.
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Affiliation(s)
- Monica M Pagliara
- Ocular Oncology Unit, Department of Ophthalmology, Fondazione Policlinico Universitario "A. Gemelli", Università Cattolica del Sacro Cuore, Rome, Italy.
| | - Luca Tagliaferri
- Gemelli Advanced Radiation Therapy Center, Fondazione Policlinico Universitario "A. Gemelli", Università Cattolica del Sacro Cuore, Rome, Italy
| | - Luigi Azario
- Physics Institute, Fondazione Policlinico Universitario "A. Gemelli", Università Cattolica del Sacro Cuore, Rome, Italy
| | - Jacopo Lenkowicz
- Gemelli-ART, Fondazione Policlinico Universitario "A.Gemelli", Università Cattolica del Sacro Cuore, Rome, Italy
| | - Angela Lanza
- Ocular Oncology Unit, Department of Ophthalmology, Fondazione Policlinico Universitario "A. Gemelli", Università Cattolica del Sacro Cuore, Rome, Italy
| | - Rosa Autorino
- Gemelli Advanced Radiation Therapy Center, Fondazione Policlinico Universitario "A. Gemelli", Università Cattolica del Sacro Cuore, Rome, Italy
| | - Carmela G Caputo
- Ocular Oncology Unit, Department of Ophthalmology, Fondazione Policlinico Universitario "A. Gemelli", Università Cattolica del Sacro Cuore, Rome, Italy
| | - Maria A Gambacorta
- Gemelli Advanced Radiation Therapy Center, Fondazione Policlinico Universitario "A. Gemelli", Università Cattolica del Sacro Cuore, Rome, Italy
| | - Vincenzo Valentini
- Gemelli Advanced Radiation Therapy Center, Fondazione Policlinico Universitario "A. Gemelli", Università Cattolica del Sacro Cuore, Rome, Italy
| | - Maria A Blasi
- Ocular Oncology Unit, Department of Ophthalmology, Fondazione Policlinico Universitario "A. Gemelli", Università Cattolica del Sacro Cuore, Rome, Italy
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Tarmann L, Wackernagel W, Ivastinovic D, Schneider M, Winkler P, Langmann G. Tumor parameters predict the risk of side effects after ruthenium-106 plaque brachytherapy of uveal melanomas. PLoS One 2017; 12:e0183833. [PMID: 28859118 PMCID: PMC5578662 DOI: 10.1371/journal.pone.0183833] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Accepted: 08/12/2017] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND To report on radiation-related side effects and complications after ruthenium-106 plaque brachytherapy of uveal melanomas. METHODS Medical records of 143 eyes with uveal melanoma, treated by ruthenium-106 brachytherapy between 1997 and 2012 at a single center, were analyzed. We evaluated the occurrence of radiation-related side effects on the anterior and posterior segment of the eye. The influence of patient, tumor and treatment parameters on outcome was analyzed by multivariate time to event analysis considering competing risks. RESULTS The median overall follow-up was 37.9 months. After treatment, the estimated risk at 12, 24 and 48 months for developing anterior segment complications was 25.3%, 37.5% and 50.3% for cataract formation and 5.4%, 6.4% and 8.1% for secondary glaucoma, respectively. The estimated risk for the occurrence of posterior segment complications 12, 24 and 48 months after treatment was 3.1%, 6.7% and 18.3% for radiation retinopathy, 18.3%, 27.1% and 42.6% for radiation maculopathy and 16.5%, 21.0% and 32.8% for radiation neuropathy, respectively. The risk of an increase in retinal detachment after treatment was 14.7%, 14.7% and 17.4% at 12, 24 and 48 months, respectively. The risk of vitreous hemorrhage occurring after treatment was 6.2%, 8.1% and 12.7%, and the risk of tumor vasculopathy was 15.4%, 17.4% and 19.0%. Scleral necrosis was observed in one patient. CONCLUSION Radiation-related side effects and complications are common among patients treated with ruthenium brachytherapy for uveal melanoma. However, the risk for those largely depends on individual tumor parameters. Before treatment, patients should be informed of their specific risks to develop various side effects. Patient information before treatment should cover not only general information about the treatment and possible complications and side effects but should also give details on the specific risks of the patient in her individual situation. This also includes elucidating the patient's individual resources and expectations and her willingness for long-term regular follow-up examinations and secondary adjunct treatments.
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Affiliation(s)
- Lisa Tarmann
- Department of Ophthalmology, Medical University Graz, Graz, Austria
| | - Werner Wackernagel
- Department of Ophthalmology, Medical University Graz, Graz, Austria
- * E-mail:
| | | | - Mona Schneider
- Department of Ophthalmology, Medical University Graz, Graz, Austria
| | - Peter Winkler
- Department of Therapeutic Radiology and Oncology, Medical University Graz, Graz, Austria
| | - Gerald Langmann
- Department of Ophthalmology, Medical University Graz, Graz, Austria
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Ruthenium-106 brachytherapy for thick uveal melanoma: reappraisal of apex and base dose radiation and dose rate. J Contemp Brachytherapy 2016; 8:66-73. [PMID: 26985199 PMCID: PMC4793070 DOI: 10.5114/jcb.2016.57818] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Accepted: 01/20/2016] [Indexed: 11/17/2022] Open
Abstract
Purpose To evaluate the outcomes of ruthenium-106 (106Ru) brachytherapy in terms of radiation parameters in patients with thick uveal melanomas. Material and methods Medical records of 51 patients with thick (thickness ≥ 7 mm and < 11 mm) uveal melanoma treated with 106Ru brachytherapy during a ten-year period were reviewed. Radiation parameters, tumor regression, best corrected visual acuity (BCVA), and treatment-related complications were assessed. Results Fifty one eyes of 51 consecutive patients including 25 men and 26 women with a mean age of 50.5 ± 15.2 years were enrolled. Patients were followed for 36.1 ± 26.5 months (mean ± SD). Mean radiation dose to tumor apex and to sclera were 71 (± 19.2) Gy and 1269 (± 168.2) Gy. Radiation dose rates to tumor apex and to sclera were 0.37 (± 0.14) Gy/h and 6.44 (± 1.50) Gy/h. Globe preservation was achieved in 82.4%. Preoperative mean tumor thickness of 8.1 (± 0.9) mm decreased to 4.5 (± 1.6) mm, 3.4 (± 1.4) mm, and 3.0 (± 1.46) mm at 12, 24, and 48 months after brachytherapy (p = 0.03). Four eyes that did not show regression after 6 months of brachytherapy were enucleated. Secondary enucleation was performed in 5 eyes because of tumor recurrence or neovascular glaucoma. Tumor recurrence was evident in 6 (11.8%) patients. Mean Log MAR (magnification requirement) visual acuity declined from 0.75 (± 0.63) to 0.94 (± 0.5) (p = 0.04). Best corrected visual acuity of 20/200 or worse was recorded in 37% of the patients at the time of diagnosis and 61.7% of the patients at last exam (p = 0.04). Non-proliferative and proliferative radiation-induced retinopathy was observed in 20 and 7 eyes. Conclusions Thick uveal melanomas are amenable to 106Ru brachytherapy with less than recommended apex radiation dose and dose rates.
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Browne AW, Dandapani SV, Jennelle R, Stevanovic M, Lee TC, Murphree AL, Kampp TD, Astrahan MA, Kim JW, Berry JL. Outcomes of medium choroidal melanomas treated with ruthenium brachytherapy guided by three-dimensional pretreatment modeling. Brachytherapy 2015; 14:718-25. [PMID: 26073224 DOI: 10.1016/j.brachy.2015.04.010] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2015] [Revised: 04/25/2015] [Accepted: 04/30/2015] [Indexed: 10/23/2022]
Abstract
PURPOSE The Collaborative Ocular Melanoma Study (COMS) established iodine-125 (I-125) plaque brachytherapy for eye preserving treatment of medium-sized choroidal melanomas in the United States. Eye Physics I-125 plaque treatment modeled with Plaque Simulator (PS) software yields similar results to COMS. Herein, we report results from a series of 15 patients treated with ruthenium-106 (Ru-106) plaque brachytherapy using PS pretreatment modeling for plaque localization and dosimetry. METHODS AND MATERIALS Fifteen patients with medium-sized choroidal melanomas (2.84-5.5 mm in apical height and a basal diameter of 7.8-12.6 mm) treated with ruthenium brachytherapy from 2003 to 2005 were evaluated retrospectively. Baseline and followup data were evaluated for tumor height, best corrected visual acuity, radiation retinopathy, radiation optic neuropathy, postradiation cataract formation, diplopia, and ptosis. Tumor response for both Ru-106 and I-125 plaques planned using the same PS pretreatment modeling was evaluated and compared. RESULTS Isotope-specific radiation profiles were compared, and rates of local treatment failure (0%), optic neuropathy (6.7%), retinopathy (20%), and cataracts (33%) were evaluated. Five year-treated tumor heights were approximately 0.61 ± 0.29 (I-125, n = 16) and 0.53 ± 0.17 (Ru-106, n = 6) of their heights at diagnosis. CONCLUSIONS This patient subset had background characteristics very similar to those of the COMS and patients treated at our institution with I-125 plaques. Treatment response was equivalent although radiation complications occurred slightly less frequently in the Ru-106 group compared with those treated with I-125. Image-guided three-dimensional pretreatment modeling for plaque localization and dosimetry seems to work equally as well for Ru as for I-125 plaques and justifies more extensive investigation.
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Affiliation(s)
- Andrew W Browne
- USC Eye Institute, Department of Ophthalmology, Keck School of Medicine, University of Southern California, Los Angeles, CA
| | - Savita V Dandapani
- Department of Radiation Oncology, Keck School of Medicine, University of Southern California, Los Angeles, CA
| | - Richard Jennelle
- Department of Radiation Oncology, Keck School of Medicine, University of Southern California, Los Angeles, CA
| | | | - Thomas C Lee
- USC Eye Institute, Department of Ophthalmology, Keck School of Medicine, University of Southern California, Los Angeles, CA; The Vision Center at Children's Hospital Los Angeles, Los Angeles, CA
| | - A Linn Murphree
- The Vision Center at Children's Hospital Los Angeles, Los Angeles, CA
| | - Thomas D Kampp
- Department of Radiation Oncology, Keck School of Medicine, University of Southern California, Los Angeles, CA
| | - Melvin A Astrahan
- Department of Radiation Oncology, Keck School of Medicine, University of Southern California, Los Angeles, CA
| | - Jonathan W Kim
- USC Eye Institute, Department of Ophthalmology, Keck School of Medicine, University of Southern California, Los Angeles, CA; The Vision Center at Children's Hospital Los Angeles, Los Angeles, CA
| | - Jesse L Berry
- USC Eye Institute, Department of Ophthalmology, Keck School of Medicine, University of Southern California, Los Angeles, CA.
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Takiar V, Voong KR, Gombos DS, Mourtada F, Rechner LA, Lawyer AA, Morrison WH, Garden AS, Beadle BM. A choice of radionuclide: Comparative outcomes and toxicity of ruthenium-106 and iodine-125 in the definitive treatment of uveal melanoma. Pract Radiat Oncol 2015; 5:e169-e176. [DOI: 10.1016/j.prro.2014.09.005] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Revised: 09/05/2014] [Accepted: 09/17/2014] [Indexed: 11/25/2022]
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Barker CA, Francis JH, Cohen GN, Marr BP, Wolden SL, McCormick B, Abramson DH. (106)Ru plaque brachytherapy for uveal melanoma: factors associated with local tumor recurrence. Brachytherapy 2014; 13:584-90. [PMID: 24880583 DOI: 10.1016/j.brachy.2014.04.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 03/27/2014] [Accepted: 04/10/2014] [Indexed: 11/17/2022]
Abstract
PURPOSE Plaque brachytherapy is a common form of treatment for uveal melanoma, and the Collaborative Ocular Melanoma Study (COMS) used (125)I. Recently, (106)Ru has been reintroduced for plaque brachytherapy in the United States. We reviewed our experience treating uveal melanoma with (106)Ru plaque brachytherapy using COMS planning techniques, hypothesizing that we would observe similar outcomes to those in the COMS. METHODS AND MATERIALS Medical records of patients undergoing (106)Ru plaque brachytherapy were reviewed retrospectively. Patient, tumor, and treatment characteristics were recorded. Outcomes including visual acuity, local tumor recurrence, salvage treatment, metastasis, and survival were recorded. Cox regression analyses were used to determine factors associated with local tumor recurrence and enucleation. RESULTS Twenty-eight patients were studied. Median age was 60 years, and 50% were men. Median tumor base diameter and height were 9.4 and 2.6 mm, respectively. Ophthalmic complications were rare. Local tumor recurrence and enucleation occurred in 13 and 4 patients, respectively. Local tumor recurrence was associated with low visual acuity in the tumor-bearing eye, posterior tumors, small plaque size, and difference in plaque-tumor diameter of <6 mm. Enucleation was associated with low visual acuity and posteriorly located tumor. Estimated 5-year rate of death and metastasis was 18.5% and 11.4%, respectively. CONCLUSIONS Among patients treated with (106)Ru plaque brachytherapy using COMS planning techniques, we found a greater than expected rate of local tumor recurrence. Planning (106)Ru plaque brachytherapy should be done carefully at centers that have previously used COMS protocols and (125)I.
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Affiliation(s)
- Christopher A Barker
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY.
| | - Jasmine H Francis
- Ophthalmic Oncology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Gil'ad N Cohen
- Department of Medical Physics, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Brian P Marr
- Ophthalmic Oncology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Suzanne L Wolden
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Beryl McCormick
- Department of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY
| | - David H Abramson
- Ophthalmic Oncology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY
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Barbosa N, da Rosa L, Facure A, Braz D. Brachytherapy treatment simulation of strontium-90 and ruthenium-106 plaques on small size posterior uveal melanoma using MCNPX code. Radiat Phys Chem Oxf Engl 1993 2014. [DOI: 10.1016/j.radphyschem.2012.12.025] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Takiar V, Gombos DS, Mourtada F, Rechner LA, Lawyer AA, Morrison WH, Garden AS, Beadle BM. Disease control and toxicity outcomes using ruthenium eye plaque brachytherapy in the treatment of uveal melanoma. Pract Radiat Oncol 2013; 4:e189-94. [PMID: 25012839 DOI: 10.1016/j.prro.2013.08.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2013] [Revised: 07/29/2013] [Accepted: 08/09/2013] [Indexed: 10/26/2022]
Abstract
PURPOSE Ruthenium-106 ((106)Ru) eye plaques have the potential to achieve excellent tumor control with acceptable radiation toxicity. We evaluated our experience in the management of uveal melanoma treated with (106)Ru brachytherapy. METHODS AND MATERIALS The records of 40 patients with uveal melanoma treated with brachytherapy using (106)Ru plaques from 2003 to 2007 at University of Texas MD Anderson Cancer Center were reviewed. Endpoints assessed included tumor control and toxicity. RESULTS Median ophthalmologic follow-up was 67 months. Actuarial 5-year rates of local control (LC), progression-free survival (PFS), and overall survival (OS) were 97%, 94%, and 92%. There were 3 deaths, 2 related to melanoma. Fifteen patients experienced clinically significant visual loss; no patients were diagnosed with neovascular glaucoma, and 1 patient developed a clinically significant radiation-associated cataract. No patient required enucleation. CONCLUSIONS We report the largest published US cohort of patients treated with (106)Ru plaque brachytherapy for uveal melanoma. Tumor control was excellent, and toxicity was acceptably low. These data support the reintroduction of (106)Ru into clinical practice for ocular melanoma.
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Affiliation(s)
- Vinita Takiar
- Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Dan S Gombos
- Department of Ophthalmology, University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Firas Mourtada
- Department of Radiation Oncology, Christiana Care Health System, Helen F. Graham Cancer Center, Wilmington, Delaware and Department of Radiation Oncology, Thomas Jefferson University, Philadelphia, PA; Department of Radiation Physics, University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Laura A Rechner
- Department of Radiation Physics, University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Ann A Lawyer
- Department of Radiation Physics, University of Texas MD Anderson Cancer Center, Houston, Texas
| | - William H Morrison
- Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Adam S Garden
- Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Beth M Beadle
- Department of Radiation Oncology, University of Texas MD Anderson Cancer Center, Houston, Texas.
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Abstract
Local treatment failure after globe-conserving therapy for choroidal melanoma is a surgical complication with significant morbidity to the vision and eye. Few reports in the literature have addressed this complication exclusively. A review of the published literature with reference to local treatment failure in the management of choroidal melanoma was performed to make known the potential differences in failure rates between treatment modalities and methods. A search of the literature regarding local treatment failure was performed to identify relevant studies using combinations of the following keywords on PubMed: uveal melanoma, choroidal melanoma, local recurrence, local failure, endoresection, gamma knife, radiotherapy, helium, iodine, proton, palladium, ruthenium, trans-scleral resection, transpupillary thermotherapy. Further studies were found by searching the text and references of previously identified studies for articles reporting local treatment failure rates in choroidal melanoma. Among the 49 studies identified, the local treatment failure rate ranged from 0% to 55.6%, with follow-up ranging from 10 to 150 months. The two most widely used forms of radiation therapy, iodine-125 and ruthenium-106 brachytherapy, were both associated with a local recurrence rate of 9.6%. The weighted-average of treatment failure in all radiation therapies was 6.15% compared with 18.6% in surgical and 20.8% in laser therapies. Rates of local treatment failure for globe-conserving therapy of choroidal melanoma varied widely between modalities and between centres using similar modalities. Radiation therapy overall resulted in lower local treatment failures compared with surgical or transpupillary thermotherapy.
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Affiliation(s)
- Melinda Y Chang
- Department of Ophthalmology and Jules Stein Eye Institute, University of California, Los Angeles, Los Angeles, California 90095, USA
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Brachytherapy for Choroidal Melanoma. Retina 2013. [DOI: 10.1016/b978-1-4557-0737-9.00145-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Razzaq L, Keunen JEE, Schalij-Delfos NE, Creutzberg CL, Ketelaars M, de Keizer RJW. Ruthenium plaque radiation therapy for iris and iridociliary melanomas. Acta Ophthalmol 2012; 90:291-6. [PMID: 20670343 DOI: 10.1111/j.1755-3768.2010.01967.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
PURPOSE To determine the long-term effects of ruthenium-106 plaque radiation therapy for iris and iridociliary melanomas in terms of tumour regression and complications. METHODS Between 1 November 1997 and 31 December 2007, 36 patients with an iris or iridociliary melanoma were treated with Ruthenium-106 (Ru-106) ophthalmic plaque radiation therapy. The median follow-up was 6.5 years with a range of 2-11 years. The mean tumour apex dose was 151.5 Gy. Main outcome measures were local tumour control and radiation-related ocular complications. RESULTS The mean age of the patients at the time of treatment was 54 years (range 14-82). The tumours had a median largest basal dimension of 4.8 mm (range 3-11) and a prominence of 2.3 mm (range 0.8-5), with a median involvement of three clock hours (range 1-6). The tumours were confined to the iris in 14 patients (39%), extended into the anterior ciliary body in 12 (33%), while the anterior ciliary body tumour extended into the iris in ten patients (28%). Tumours regressed in all patients (100%) with a mean regression of 80% of the original tumour size at 7 years of follow-up. Radiation-related complications included corneal erosions on the first postoperative day in nine patients (25%), cataract in four of 11 patients free of cataract before treatment (36%) and postradiation glaucoma in one patient (3%). Visual acuity of 20/200 or worse was present in one of 20 patients (5%) at 6 years of follow-up. Local recurrences occurred in two patients (5%), 2 and 5 years after the radiation therapy respectively, and both underwent enucleation. Distant metastases occurred in one of these enucleated patients (3%) 2 years after treatment. CONCLUSION Ru-106 plaque radiation therapy for iris and iridociliary melanoma resulted in good local tumour control and preservation of visual acuity with few and treatable side-effects.
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Affiliation(s)
- Lubna Razzaq
- Department of Ophthalmology, Leiden University Medical Center, Leiden, the Netherlands
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Thomson RM, Furutani KM, Pulido JS, Stafford SL, Rogers D. Modified COMS Plaques for 125I and 103Pd Iris Melanoma Brachytherapy. Int J Radiat Oncol Biol Phys 2010; 78:1261-9. [DOI: 10.1016/j.ijrobp.2009.12.002] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2009] [Revised: 08/31/2009] [Accepted: 12/03/2009] [Indexed: 10/19/2022]
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