Research Topics
| C PolgarSummaryCountry: Hungary Publications
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Detail Information
Publications
[Second breast-conserving surgery and reirradiation with interstitial high-dose-rate brachytherapy for the management of intra-breast recurrences -- 5-year results]Csaba Polgar
Sugárterápiás Osztály, Országos Onkológiai Intézet, Budapest, Hungary
Magy Onkol 56:68-74. 2012..Perioperative HDR BT may decrease the risk of second local relapse with acceptable cosmetic results and low rate of late side effects...
CT-image-based conformal brachytherapy of breast cancer. The significance of semi-3-D and 3-D treatment planningC Polgar
National Institute of Oncology, Department of Radiotherapy, Budapest, Hungary
Strahlenther Onkol 176:118-24. 2000..To compare the conventional 2-D, the simulator-guided semi-3-D and the recently developed CT-guided 3-D brachytherapy treatment planning in the interstitial radiotherapy of breast cancer...
Breast-conserving treatment with partial or whole breast irradiation for low-risk invasive breast carcinoma--5-year results of a randomized trialCsaba Polgar
Department of Radiotherapy, National Institute of Oncology, Budapest, Hungary
Int J Radiat Oncol Biol Phys 69:694-702. 2007..To report the 5-year results of a randomized study comparing the survival and cosmetic results of breast-conserving treatment with partial breast irradiation (PBI) or conventional whole breast irradiation (WBI)...
The role of radiotherapy in the conservative treatment of ductal carcinoma in situ of the breastCsaba Polgar
Department of Radiotherapy, National Institute of Oncology, Rath Gy u 7 9, Budapest, 1122, Hungary
Pathol Oncol Res 14:179-92. 2008....
[Combined surgery and radiotherapy in the treatment of ductal carcinoma in situ of the breast: preliminary results of the Hungarian multicenter prospective randomised study]Csaba Polgar
Országos Onkológiai Intézet Sugárterápiás Osztály 1122 Budapest Ráth Gy u 7 9
Magy Onkol 52:269-77. 2008..IHC of molecular prognostic markers can assist to gain insight into the biologic heterogeneity of DCIS...
Current status and perspectives of brachytherapy for breast cancerCsaba Polgar
Department of Radiotherapy, National Institute of Oncology, Budapest, Hungary
Int J Clin Oncol 14:7-24. 2009..In this article, we give an overview of the past achievements, current status, and future perspectives of breast brachytherapy...
Accelerated partial-breast irradiation using high-dose-rate interstitial brachytherapy: 12-year update of a prospective clinical studyCsaba Polgar
Department of Radiotherapy, National Institute of Oncology, Budapest, Hungary
Radiother Oncol 94:274-9. 2010..To report the 12-year updated results of accelerated partial-breast irradiation (APBI) using multicatheter interstitial high-dose-rate (HDR) brachytherapy (BT)...
Patient selection for accelerated partial-breast irradiation (APBI) after breast-conserving surgery: recommendations of the Groupe Européen de Curiethérapie-European Society for Therapeutic Radiology and Oncology (GEC-ESTRO) breast cancer working group baCsaba Polgar
Department of Radiotherapy, National Institute of Oncology, Budapest, Hungary
Radiother Oncol 94:264-73. 2010..To give recommendations on patient selection criteria for the use of accelerated partial-breast irradiation (APBI) based on available clinical evidence complemented by expert opinion...
[Modern radiotherapy after breast-conserving surgery]Csaba Polgar
Országos Onkológiai Intézet Budapest Ráth Gy u 7 9 1122
Orv Hetil 153:45-55. 2012..This article reviews the results of these studies focusing on individual risk-adapted radiotherapy after breast-conserving surgery for patients with early-stage breast carcinoma...
Brachytherapy for partial breast irradiation: the European experienceCsaba Polgar
Department of Radiotherapy, National Institute of Oncology, Budapest, Hungary
Semin Radiat Oncol 15:116-22. 2005..As data from this and other trials mature, they will address and refine issues of patient selection, target volume definition, total dose, and fractionation and hopefully support the implementation of APBI into routine clinical practice...
High-dose-rate brachytherapy alone versus whole breast radiotherapy with or without tumor bed boost after breast-conserving surgery: seven-year results of a comparative studyCsaba Polgar
Department of Radiotherapy, National Institute of Oncology, Budapest, Hungary
Int J Radiat Oncol Biol Phys 60:1173-81. 2004....
Sole brachytherapy of the tumor bed after conservative surgery for T1 breast cancer: five-year results of a phase I-II study and initial findings of a randomized phase III trialCsaba Polgar
Department of Radiotherapy, National Institute of Oncology, Budapest, Hungary
J Surg Oncol 80:121-8; discussion 129. 2002....
Radiotherapy confined to the tumor bed following breast conserving surgery current status, controversies, and future projectsCsaba Polgar
National Institute of Oncology, Department of Radiotherapy, Budapest, Hungary
Strahlenther Onkol 178:597-606. 2002..The aim of this study was to review the current status, controversies, and future prospects of tumor bed irradiation alone after breast conserving surgery...
The role of boost irradiation in the conservative treatment of stage I-II breast cancerC Polgar
National Institute of Oncology, Department of Radiotherapy Ráth György u 7 9, Budapest, H 1122, Hungary
Pathol Oncol Res 7:241-50. 2001..However, more experience and longer follow-up are required to define whether these methods might improve local tumor control for breast cancer patients treated with conservative surgery and RT...
Electron and high-dose-rate brachytherapy boost in the conservative treatment of stage I-II breast cancer first results of the randomized Budapest boost trialCsaba Polgar
Department of Radiotherapy, National Institute of Oncology, Budapest, Hungary
Strahlenther Onkol 178:615-23. 2002..To evaluate the effect of electron and high-dose-rate brachytherapy (HDR BT) boost on local tumor control (LTC), side effects and cosmesis after breast-conserving surgery (BCS) in a prospective randomized study...
Postirradiation angiosarcoma of the chest wall and breast: issues of radiogenic origin, diagnosis and treatment in two casesC Polgar
Department of Radiotherapy, National Institute of Oncology, Budapest, Hungary
Oncology 60:31-4. 2001..Initial radical surgery is the only effective treatment for achieving long-term survival. These very rare cases deserve special attention due to the atypical clinical appearance, difficulties of differential diagnosis and poor prognosis...
The importance of interstitial radiotherapy in the treatment of the base of tongue tumors: a retrospective analysisZ Takácsi-Nagy
National Institute of Oncology, Department of Radiotherapy, Budapest, Hungary
Neoplasma 48:76-81. 2001..However, more patients and longer follow-up is required to define the value of sole BT...
The impact of radiotherapy on the incidence and time of occurrence of local recurrence in early-stage breast cancer after breast conserving therapyJ Fodor
Department of Radiation Therapy, National Institute of Oncology, Budapest, Hungary
Neoplasma 47:181-6. 2000..Patients wih EIC positive tumor are at high risk of IBTR even when a median dose of 50 Gy is given to the whole breast...
Dosimetric evaluation of high-dose-rate interstitial brachytherapy boost treatments for localized prostate cancerGeorgina Fröhlich
Semmelweis University, Budapest, Hungary
Strahlenther Onkol 186:388-95. 2010..To quantitatively evaluate the dose distributions of high-dose-rate (HDR) prostate implants regarding target coverage, dose homogeneity, and dose to organs at risk...
Prognosis of patients with local recurrence after mastectomy or conservative surgery for early-stage invasive breast cancerJ Fodor
Department of Radiotherapy, National Institute of Oncology, 1525 Budapest, P O Box 21, Rath Gy u 7 9, Hungary
Breast 17:302-8. 2008..The identified unfavorable prognostic factors are pointers of the forthcoming systemic progression. Patients with < or = 2 cm in-breast recurrence might receive a second CS...
[Breast-conserving treatment for early invasive lobular breast cancer: 15 years results]J Fodor
Országos Onkológiai Intézet Sugárterápiás Osztály, 1122 Budapest, Ráth György u 7 9
Magy Seb 54:209-14. 2001..Infiltrating lobular cancer is biologically different from invasive ductal cancer and there is disagreement regarding appropriate local management of this disease...
The effect of needle number on the quality of high-dose-rate prostate brachytherapy implantsGeorgina Fröhlich
School of PhD Studies, Semmelweis University, Ulloi ut 26, Budapest 1085, Hungary
Pathol Oncol Res 16:593-9. 2010..Based on our results, in most cases the use of 15-17 needles seems to provide a dosimetrically acceptable treatment plan in HDR prostate implants...
Salvage surgery for locoregional failure after definitive radiotherapy for base of tongue cancerMiklos Kasler
Department of Head and Neck, Laser and Reconstructive Plastic Surgery, National Institute of Oncology, Budapest, Hungary
In Vivo 22:803-6. 2008..Salvage surgery was successful in 10 (56%) patients, while 8 patients developed a second locoregional recurrence. For patients undergoing definitive RT, more effective follow-up and care is needed to increase the rate of salvage surgery...
Interstitial high-dose-rate brachytherapy in the treatment of base of tongue carcinomaZoltán Takácsi-Nagy
Department of Radiotherapy, National Institute of Oncology, Budapest, Hungary
Strahlenther Onkol 180:768-75. 2004..To date none of the studies examined the feasibility and efficacy of interstitial high-dose-rate (HDR) brachytherapy in the treatment of carcinoma of the tongue base. Therefore the aim of this study was to contribute to this issue...
Dosimetric experience with accelerated partial breast irradiation using image-guided interstitial brachytherapyTibor Major
Department of Radiotherapy, National Institute of Oncology, Budapest, Hungary
Radiother Oncol 90:48-55. 2009..To present our dosimetric findings with image-guided high-dose-rate interstitial brachytherapy of breast cancer...
Fat necrosis after partial-breast irradiation with brachytherapy or electron irradiation versus standard whole-breast radiotherapy--4-year results of a randomized trialKatalin Lövey
Department of Radiotherapy, National Institute of Oncology, Budapest, Hungary
Int J Radiat Oncol Biol Phys 69:724-31. 2007....
[Local relapse in young (< or = 40 years) women with breast cancer after mastectomy or breast conserving surgery: 15-year results]Janos Fodor
Országos Onkológiai Intézet, 1122 Budapest, Ráth Gyorgy
Magy Onkol 49:203, 205-8. 2005..This study investigates the risk of local recurrence for young (< or = 40 years) patients treated with either conservative or radical surgery, with or without radiotherapy (RT)...
[Brachytherapy boost irradiation in the treatment of high risk, localised prostate cancer. Initial national experience in Hungary]Péter Agoston
Sugárterápiás Osztály, Országos Onkológiai Intézet, Budapest 1122, Hungary
Magy Onkol 48:81-8. 2004..To describe the technique and early results of ultrasound (US)-guided interstitial prostate brachytherapy (BT) introduced at our institute...
Evaluation of HDR interstitial breast implants planned by conventional and optimized CT-based dosimetry systems with respect to dose homogeneity and conformalityTibor Major
Radiotherapy Department, National Institute of Oncology, 7 9 Rath Gy u, 1122 Budapest, Hungary
Strahlenther Onkol 181:89-96. 2005..The aim of this study was to make dosimetric comparisons between conventional (CONV) and CT-based optimized dosimetry systems applied to breast implants...
[Teletherapy versus teletherapy and "boost" brachytherapy in the treatment of base of tongue tumors: 5-year results]Zoltán Takácsi Nagy
Országos Onkológiai Intézet, Budapest, 1122, Hungary
Magy Onkol 48:297-301. 2004..To study the importance of high-dose-rate (HDR) boost brachytherapy (BT) after percutaneous irradiation of base of tongue tumors...
Angiosarcoma after conservation treatment for breast carcinoma: our experience and a review of the literatureJanos Fodor
Department of Radiotherapy, National Institute of Oncology, Budapest, Hungary
J Am Acad Dermatol 54:499-504. 2006..As shown by a review of the literature, angiosarcomas are often resistant to surgery, chemotherapy, and radiotherapy, and targeted therapy against tumor biological properties may be a new approach to angiosarcoma treatment...
[Long-term experience with therapy of a female patient with Gardner's syndrome, first presenting with extra-abdominal desmoid tumor, and review of the literature]Zoltan Matrai
Országos Onkológiai Intézet, Altalános és Mellkassebészeti Osztály, Budapest, Hungary
Magy Seb 62:75-82. 2009..Such patients should be evaluated with genetic testing followed by colonoscopy. Desmoid tumours should be managed in a multidisciplinary setting, as well...
