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Gruber I, Weidner K, Treutwein M, Koelbl O. Stereotactic radiosurgery of brain metastases: a retrospective study. Radiat Oncol 2023; 18:202. [PMID: 38115009 PMCID: PMC10731882 DOI: 10.1186/s13014-023-02389-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Accepted: 12/12/2023] [Indexed: 12/21/2023] Open
Abstract
BACKGROUND Single-fraction stereotactic radiosurgery (SRS) is an established standard for radiation therapy of brain metastases although recent developments indicate that multi-fractionated stereotactic radiotherapy (FSRT) results in lower radiation necrosis especially for larger metastases, and the same or even better local control in comparison to SRS. METHODS Seventy-two patients with 111 brain metastases received SRS with a single dose of 18 Gy between September 2014 and December 2021. The dose prescription was either 18 Gy given to the enclosing 80% isodose with a normalization to Dmax = 100% of 22.5 Gy (part I) or 18 Gy = D98, while D0.03 cc of 21.6-22.5 Gy was accepted (part II). The study retrospectively evaluated local progression-free survival (LPFS), response on the first follow-up magnetic resonance imaging (MRI), and radiation necrosis. RESULTS Melanoma brain metastases (n = 44) were the most frequent metastases. The median gross tumor volume (GTV) was 0.30 cm³ (IQR, 0.17-0.61). The median follow-up time of all patients was 50.8 months (IQR, 30.4-64.6). Median LPFS was 23.5 months (95%CI 17.2, 29.8). The overall LPFS rates at 12-, 18-, 24- and 30 months were 65.3%, 56.3%, 46.5%, and 38.8%. Brain metastases with radioresistant histology (melanoma, renal cell cancer, and sarcoma) showed a 12-month LPFS of 60.2%, whereas brain metastases with other histology had a 12-month LPFS of 70.1%. The response of brain metastases on first follow-up MRIs performed after a median time of 47 days (IQR, 40-63) was crucial for long-term local control and survival. Eight brain metastases (7.2%) developed radiation necrosis after a median time of 18.4 months (IQR, 9.4-26.5). In multivariate analyses, a GTV > 0.3 cm³ negatively affected LPFS (HR 2.229, 95%CI 1.172, 4.239). Melanoma, renal cell cancers, and sarcoma had a lower chance of LPFS in comparison to other cancer types (HR 2.330, 95%CI 1.155, 4.699). CONCLUSIONS Our results indicate a reasonable 1-year local control of brain metastases with radiosensitive histology. Radioresistant metastases show a comparatively poor local control. Treatment refinements merit exploration to improve local control of brain metastases. TRIAL REGISTRATION This study is retrospectively registered (ethics approval number 23-3451-104).
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Affiliation(s)
- Isabella Gruber
- Department of Radiation Oncology, University Hospital Regensburg, Franz-Josef-Strauss Allee 11, Regensburg, Bavarian, 93053, Germany.
| | - Karin Weidner
- Department of Radiation Oncology, University Hospital Regensburg, Franz-Josef-Strauss Allee 11, Regensburg, Bavarian, 93053, Germany
| | - Marius Treutwein
- Department of Radiation Oncology, University Hospital Regensburg, Franz-Josef-Strauss Allee 11, Regensburg, Bavarian, 93053, Germany
| | - Oliver Koelbl
- Department of Radiation Oncology, University Hospital Regensburg, Franz-Josef-Strauss Allee 11, Regensburg, Bavarian, 93053, Germany
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2
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Leiter U, Heppt MV, Steeb T, Alter M, Amaral T, Bauer A, Bechara FG, Becker JC, Breitbart EW, Breuninger H, Diepgen T, Dirschka T, Eigentler T, El Gammal AKS, Felcht M, Flaig MJ, Follmann M, Fritz K, Grabbe S, Greinert R, Gutzmer R, Hauschild A, Hillen U, Ihrler S, John SM, Kofler L, Koelbl O, Krause-Bergmann A, Kraywinkel K, Krohn S, Langer T, Loquai C, Löser CR, Mohr P, Nashan D, Nothacker M, Pfannenberg C, Salavastru C, Schmitz L, Stockfleth E, Szeimies RM, Ulrich C, Voelter-Mahlknecht S, Vordermark D, Weichenthal M, Welzel J, Wermker K, Wiegand S, Garbe C, Berking C. S3-Leitlinie "Aktinische Keratose und Plattenepithelkarzinom der Haut" - Update 2023, Teil 2: Epidemiologie und Ätiologie, Diagnostik, Therapie des invasiven Plattenepithelkarzinoms der Haut, Nachsorge und Prävention: S3 guideline "actinic keratosis and cutaneous squamous cell carcinoma" - update 2023, part 2: epidemiology and etiology, diagnostics, surgical and systemic treatment of cutaneous squamous cell carcinoma (cSCC), surveillance and prevention. J Dtsch Dermatol Ges 2023; 21:1422-1434. [PMID: 37946644 DOI: 10.1111/ddg.15256_g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Accepted: 08/18/2023] [Indexed: 11/12/2023]
Abstract
ZusammenfassungAktinische Keratosen (AK) sind häufige Hautveränderungen bei hellhäutigen Menschen mit dem Potenzial, in ein kutanes Plattenepithelkarzinom (PEK) überzugehen. Beide Erkrankungen können mit erheblicher Morbidität verbunden sein und stellen eine große Krankheitslast insbesondere in der älteren Bevölkerung dar. Um einen evidenzbasierten Rahmen für die klinische Entscheidungsfindung zu schaffen, wurde die S3‐Leitlinie "Aktinische Keratose und kutanes Plattenepithelkarzinom" aktualisiert und um die Themen Plattenepithelkarzinom in situ (Morbus Bowen) und Cheilitis actinica, die Manifestation der AK am Lippenrot, erweitert. Die Leitlinie richtet sich dabei an Dermatologen, Allgemeinmediziner, HNO‐Ärzte, Chirurgen, Onkologen, Radiologen und Strahlentherapeuten in Klinik und Praxis sowie an andere medizinische Fachgebiete, politische Entscheidungsträger und Versicherungsgesellschaften, die sich mit der Diagnose und Behandlung von Patienten mit nicht‐melanozytärem Hautkrebs befassen. Für Patienten und deren Angehörige existiert eine gesonderte Patientenleitlinie. In diesem Teil behandeln wir die Themen Epidemiologie und Ätiologie, Diagnostik, Therapie des invasiven Plattenepithelkarzinoms der Haut, Nachsorge und Prävention.
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Affiliation(s)
- Ulrike Leiter
- Zentrum für Dermatoonkologie, Universitäts-Hautklinik, Eberhard-Karls-Universität Tübingen
| | - Markus V Heppt
- Hautklinik, Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen
- Comprehensive Cancer Center Europäische Metropolregion Erlangen-Nürnberg (CCC ER-EMN), Erlangen
| | - Theresa Steeb
- Hautklinik, Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen
- Comprehensive Cancer Center Europäische Metropolregion Erlangen-Nürnberg (CCC ER-EMN), Erlangen
| | - Mareike Alter
- Universitätsklinik für Dermatologie, Allergologie, Venerologie und Phlebologie, Johannes Wesling Klinikum, Ruhr-Universität Bochum Campus Minden
| | - Teresa Amaral
- Zentrum für Dermatoonkologie, Universitäts-Hautklinik, Eberhard-Karls-Universität Tübingen
| | - Andrea Bauer
- Klinik und Poliklinik für Dermatologie, Universitätsklinikum Carl Gustav Carus, Technische Universität Dresden
| | - Falk G Bechara
- Klinik für Dermatologie, Venerologie und Allergologie, St. Josef-Hospital, Ruhr-Universität Bochum
| | - Jürgen C Becker
- Translationale Hautkrebsforschung (TSCR), DKTK Essen/Düsseldorf, Universitätsmedizin Essen
| | | | - Helmut Breuninger
- Zentrum für Dermatoonkologie, Universitäts-Hautklinik, Eberhard-Karls-Universität Tübingen
| | - Thomas Diepgen
- Institut für Klinische Sozialmedizin, Universität Heidelberg
| | | | - Thomas Eigentler
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt Universität zu Berlin
| | | | - Moritz Felcht
- Zentrum für Dermatochirurgie, St. Josefskrankenhaus Heidelberg GmbH, Heidelberg
- Klinik für Dermatologie, Venerologie und Allergologie, Universitätsmedizin Mannheim
| | - Michael J Flaig
- Klinik und Poliklinik für Dermatologie und Allergologie, Klinikum der Universität München, LMU München
| | - Markus Follmann
- Leitlinienprogramm Onkologie, Deutsche Krebsgesellschaft e.V., Berlin
| | - Klaus Fritz
- Zentrum für Dermatologie, Laser und Ästhetische Medizin, Landau
| | - Stephan Grabbe
- Hautklinik der Universitätsmedizin, Johannes Gutenberg Universität Mainz
| | | | - Ralf Gutzmer
- Universitätsklinik für Dermatologie, Allergologie, Venerologie und Phlebologie, Johannes Wesling Klinikum, Ruhr-Universität Bochum Campus Minden
| | - Axel Hauschild
- Hautklinik, Universitätsklinikum Schleswig-Holstein, Campus Kiel
| | - Uwe Hillen
- Klinik für Dermatologie und Venerologie, Vivantes Klinikum Neukölln, Berlin
| | | | - Swen Malte John
- Abteilung Dermatologie und Umweltmedizin, Universität Osnabrück, Institut für interdisziplinäre Dermatologische Prävention und Rehabilitation (iDerm) an der Universität Osnabrück
| | - Lukas Kofler
- Studienzentrum Operative Dermatologie, Universitäts-Hautklinik, Eberhard-Karls-Universität, Tübingen
| | - Oliver Koelbl
- Klinik und Poliklinik für Strahlentherapie, Universitätsklinikum Regensburg
| | - Albrecht Krause-Bergmann
- Klinik für Unfall- und Wiederherstellungschirurgie, Orthopädie, Plastische-, Ästhetische- und Handchirurgie, Sektion für Plastische-, Ästhetische- und Handchirurgie, Gütersloh
| | | | - Steffen Krohn
- Deutsche Gesetzliche Unfallversicherung e.V. (DGUV), Berlin
| | - Thomas Langer
- Leitlinienprogramm Onkologie, Deutsche Krebsgesellschaft e.V., Berlin
| | - Carmen Loquai
- Klinikum Bremen-Ost, Klinik für Dermatologie, Dermatochirurgie, Dermatoonkologie und Allergologie, Hautkrebszentrum Bremen
| | - Christoph R Löser
- Hautklinik, Hauttumorzentrum, Klinikum Ludwigshafen gGmbH, Ludwigshafen
| | - Peter Mohr
- Elbe Kliniken Stade Buxtehude, Klinikum Buxtehude
| | | | - Monika Nothacker
- Arbeitsgemeinschaft der Wissenschaftlichen Medizinischen Fachgesellschaften (AWMF), Institut für Medizinisches Wissensmanagement, c/o Philipps Universität Marburg
| | - Christina Pfannenberg
- Klinik für Diagnostische und Interventionelle Radiologie, Eberhard-Karls-Universität Tübingen
| | - Carmen Salavastru
- Klinik für Kinderdermatologie, Onkologische Dermatologie - Forschungseinheit, Colentina Universitätsklinikum, Bucharest, "Carol Davila" Universitätsmedizin, Bukarest, Rumänien
| | - Lutz Schmitz
- CentroDerm Wuppertal, Heinz-Fangman-Straße 57, Wuppertal
| | - Eggert Stockfleth
- Klinik für Dermatologie, Venerologie und Allergologie, St. Josef-Hospital, Ruhr-Universität Bochum
| | | | | | - Susanne Voelter-Mahlknecht
- Institut für Arbeitsmedizin, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt Universität zu Berlin
| | - Dirk Vordermark
- Universitätsklinik für Strahlentherapie, Martin-Luther-Universität Halle-Wittenberg, Halle/Saale
| | | | - Julia Welzel
- Klinik für Dermatologie und Allergologie, Universitätsklinikum Augsburg Medizincampus Süd, Augsburg
| | - Kai Wermker
- Klinik für Mund-, Kiefer- und Gesichtschirurgie, Plastische und Ästhetische Operationen, Klinikum Osnabrück
| | - Susanne Wiegand
- Klinik und Poliklinik für Hals-, Nasen- und Ohrenheilkunde, Universitätsklinikum Leipzig
| | - Claus Garbe
- Zentrum für Dermatoonkologie, Universitäts-Hautklinik, Eberhard-Karls-Universität Tübingen
| | - Carola Berking
- Hautklinik, Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen
- Comprehensive Cancer Center Europäische Metropolregion Erlangen-Nürnberg (CCC ER-EMN), Erlangen
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Leiter U, Heppt MV, Steeb T, Alter M, Amaral T, Bauer A, Bechara FG, Becker JC, Breitbart EW, Breuninger H, Diepgen T, Dirschka T, Eigentler T, ElGammal AKS, Felcht M, Flaig MJ, Follmann M, Fritz K, Grabbe S, Greinert R, Gutzmer R, Hauschild A, Hillen U, Ihrler S, John SM, Kofler L, Koelbl O, Krause-Bergmann A, Kraywinkel K, Krohn S, Langer T, Loquai C, Löser CR, Mohr P, Nashan D, Nothacker M, Pfannenberg C, Salavastru C, Schmitz L, Stockfleth E, Szeimies RM, Ulrich C, Voelter-Mahlknecht S, Vordermark D, Weichenthal M, Welzel J, Wermker K, Wiegand S, Garbe C, Berking C. S3 guideline "actinic keratosis and cutaneous squamous cell carcinoma" - update 2023, part 2: epidemiology and etiology, diagnostics, surgical and systemic treatment of cutaneous squamous cell carcinoma (cSCC), surveillance and prevention. J Dtsch Dermatol Ges 2023; 21:1422-1433. [PMID: 37840404 DOI: 10.1111/ddg.15256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Accepted: 08/18/2023] [Indexed: 10/17/2023]
Abstract
Actinic keratosis (AK) are common lesions in light-skinned individuals that can potentially progress to cutaneous squamous cell carcinoma (cSCC). Both conditions may be associated with significant morbidity and constitute a major disease burden, especially among the elderly. To establish an evidence-based framework for clinical decision making, the guideline "actinic keratosis and cutaneous squamous cell carcinoma" was updated and expanded by the topics cutaneous squamous cell carcinoma in situ (Bowen's disease) and actinic cheilitis. The guideline is aimed at dermatologists, general practitioners, ear nose and throat specialists, surgeons, oncologists, radiologists and radiation oncologists in hospitals and office-based settings, as well as other medical specialties, policy makers and insurance funds involved in the diagnosis and treatment of patients with AK and cSCC. A separate guideline exists for patients and their relatives. In this part, we will address aspects relating to epidemiology and etiology, diagnostics, surgical and systemic treatment of cutaneous squamous cell carcinoma (cSCC), surveillance and prevention.
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Affiliation(s)
- Ulrike Leiter
- Center of Dermatooncology, University Department of Dermatooncology, Eberhard-Karls-University Tuebingen, Tübingen, Germany
| | - Markus V Heppt
- Department of Dermatology, Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
- Comprehensive Cancer Center Erlangen-European Metropolitan Area of Nuernberg, (CCC ER-EMN), Erlangen, Germany
| | - Theresa Steeb
- Department of Dermatology, Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
- Comprehensive Cancer Center Erlangen-European Metropolitan Area of Nuernberg, (CCC ER-EMN), Erlangen, Germany
| | - Mareike Alter
- Department of Dermatology, Johannes Wesling Medical Center, Ruhr University Bochum Campus Minden, Minden, Germany
| | - Teresa Amaral
- Center of Dermatooncology, University Department of Dermatooncology, Eberhard-Karls-University Tuebingen, Tübingen, Germany
| | - Andrea Bauer
- Department of Dermatology, University Hospital Carl Gustav Carus, Technical University Dresden, Dresden, Germany
| | - Falk G Bechara
- Department of Dermatology, Venerology, and Allergology, St. Josef-Hospital, Ruhr-University Bochum, Bochum, Germany
| | - Jürgen C Becker
- Translational Skin Cancer Research (TSCR), DKTK Essen/Düsseldorf, University Medicine Essen, Essen, Germany
| | | | - Helmut Breuninger
- Center of Dermatooncology, University Department of Dermatooncology, Eberhard-Karls-University Tuebingen, Tübingen, Germany
| | - Thomas Diepgen
- Institute of Clinical Social Medicine, University Heidelberg, Heidelberg, Germany
| | | | - Thomas Eigentler
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt Universität zu Berlin, Berlin, Germany
| | | | - Moritz Felcht
- Department of Dermatosurgery, St. Josefhospital Heidelberg GmbH, Heidelberg, Germany
- Department of Dermatology, Venereology und Allergy, University Medicine Mannheim, Mannheim, Germany
| | - Michael J Flaig
- Department of Dermatology and Allergy, University Hospital, LMU Munich, München, Germany
| | - Markus Follmann
- German Guideline Program in Oncology, German Cancer Society, Berlin, Germany
| | - Klaus Fritz
- Dermatology and Laser Consultation Center, Landau, Germany
| | - Stephan Grabbe
- Department of Dermatology, Mainz University Medical School, Mainz, Germany
| | - Rüdiger Greinert
- Elbe Clinics Stade Buxtehude GmbH, Medical Center Buxtehude, Buxtehude, Germany
| | - Ralf Gutzmer
- Department of Dermatology, Johannes Wesling Medical Center, Ruhr University Bochum Campus Minden, Minden, Germany
| | - Axel Hauschild
- Department of Dermatology, University Hospital Schleswig-Holstein Campus Kiel, Kiel, Germany
| | - Uwe Hillen
- Department of Dermatology & Venerology, Vivantes Hospital Neukölln, Berlin, Germany
| | | | - Swen Malte John
- Department of Dermatology and Environmental Medicine, University of Osnabrueck, Institute for Interdisciplinary Dermatological Prevention and Rehabilitation (iDerm) at the University of Osnabrueck, Osnabrück, Germany
| | - Lukas Kofler
- Study Center for Dermatosurgery, University Hospital Tuebingen, Eberhard-Karls-University, Tübingen, Germany
| | - Oliver Koelbl
- Clinic and Polyclinic for Radiooncology, University Medical Center Regensburg, Regensburg, Germany
| | - Albrecht Krause-Bergmann
- Clinic for Trauma-, Orthopedics-, and Plastic Surgery, Department for Plastic-, Aesthetic- and Handsurgery, Gütersloh, Germany
| | | | - Steffen Krohn
- German Social Accident Insurance (DGUV), Berlin, Germany
| | - Thomas Langer
- German Guideline Program in Oncology, German Cancer Society, Berlin, Germany
| | - Carmen Loquai
- Department of Dermatology, Medical Center Bremen-Ost, Bremen, Germany
| | - Christoph R Löser
- Skin Hospital, Skin Cancer Center, Ludwigshafen Hospital, Ludwigshafen, Germany
| | - Peter Mohr
- Elbe Clinics Stade Buxtehude GmbH, Medical Center Buxtehude, Buxtehude, Germany
| | - Dorothée Nashan
- Department of Dermatology, Klinikum Dortmund, Dortmund, Germany
| | - Monika Nothacker
- Association of the Scientific Medical Societies in Germany (AWMF), Institute for Medical Knowledge Management, c/o Philipps Universität Marburg, Marburg, Germany
| | - Christina Pfannenberg
- Department of Diagnostic and Interventional Radiology, Eberhard-Karls-University Tuebingen, Tübingen, Germany
| | - Carmen Salavastru
- Pediatric Dermatology Discipline, Dermato-oncology Research Facility, "Colentina" Clinical Hospital, Bucharest 020125, "Carol Davila" University of Medicine and Pharmacy, Bucharest, Rumania
| | | | - Eggert Stockfleth
- Department of Dermatology, Venerology, and Allergology, St. Josef-Hospital, Ruhr-University Bochum, Bochum, Germany
| | - Rolf-Markus Szeimies
- Department of Dermatology and Allergology, Klinikum Vest GmbH, Recklinghausen, Germany
| | - Claas Ulrich
- Dermatologie am Regierungsviertel, Berlin, Germany
| | - Susanne Voelter-Mahlknecht
- Institute of Occupational Medicine, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt Universität zu Berlin, Berlin, Germany
| | - Dirk Vordermark
- Department of Radiation Oncology, Martin-Luther-University Halle-Wittenberg, Halle/Saale, Germany
| | - Michael Weichenthal
- Department of Dermatology, University Hospital Schleswig-Holstein Campus Kiel, Kiel, Germany
| | - Julia Welzel
- Department of Dermatology, University Hospital Augsburg, Augsburg, Germany
| | - Kai Wermker
- Klinikum Osnabrueck, Department for Oral and Maxillofacial Surgery, Plastic and Aesthetic Operations, Osnabrück, Germany
| | - Susanne Wiegand
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Leipzig, Leipzig, Germany
| | - Claus Garbe
- Center of Dermatooncology, University Department of Dermatooncology, Eberhard-Karls-University Tuebingen, Tübingen, Germany
| | - Carola Berking
- Department of Dermatology, Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
- Comprehensive Cancer Center Erlangen-European Metropolitan Area of Nuernberg, (CCC ER-EMN), Erlangen, Germany
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4
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Heppt MV, Leiter U, Steeb T, Alter M, Amaral T, Bauer A, Bechara FG, Becker JC, Breitbart EW, Breuninger H, Diepgen T, Dirschka T, Eigentler T, El Gammal AKS, Felcht M, Flaig MJ, Follmann M, Fritz K, Grabbe S, Greinert R, Gutzmer R, Hauschild A, Hillen U, Ihrler S, John SM, Kofler L, Koelbl O, Krause-Bergmann A, Kraywinkel K, Krohn S, Langer T, Loquai C, Löser CR, Mohr P, Nashan D, Nothacker M, Pfannenberg C, Salavastru C, Schmitz L, Stockfleth E, Szeimies RM, Ulrich C, Voelter-Mahlknecht S, Vordermark D, Weichenthal M, Welzel J, Wermker K, Wiegand S, Garbe C, Berking C. S3-Leitlinie "Aktinische Keratose und Plattenepithelkarzinom der Haut" - Update 2023, Teil 1: Therapie der aktinischen Keratose, Morbus Bowen, Cheilitis actinica, berufsbedingte Erkrankung und Versorgungsstrukturen: S3 guideline "actinic keratosis and cutaneous squamous cell carcinoma"- update 2023, part 1: treatment of actinic keratosis, actinic cheilitis, cutaneous squamous cell carcinoma in situ (Bowen's disease), occupational disease and structures of care. J Dtsch Dermatol Ges 2023; 21:1249-1262. [PMID: 37845050 DOI: 10.1111/ddg.15231_g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Accepted: 07/27/2023] [Indexed: 10/18/2023]
Abstract
ZusammenfassungAktinische Keratosen (AK) sind häufige Hautveränderungen bei hellhäutigen Menschen mit dem Potenzial, in ein kutanes Plattenepithelkarzinom (PEK) überzugehen. Beide Erkrankungen können mit erheblicher Morbidität verbunden sein und stellen eine große Krankheitslast insbesondere in der älteren Bevölkerung dar. Um eine evidenzbasierte Grundlage für die klinische Entscheidungsfindung zu schaffen, wurde die S3‐Leitlinie „Aktinische Keratose und kutanes Plattenepithelkarzinom“ aktualisiert und um die Themen Plattenepithelkarzinom in situ (Morbus Bowen) und Cheilitis actinica, die Manifestation der AK am Lippenrot, erweitert. Die Leitlinie richtet sich dabei an Dermatologen, Allgemeinmediziner, HNO‐Ärzte, Chirurgen, Onkologen, Radiologen und Strahlentherapeuten in Klinik und Praxis sowie an andere medizinische Fachgebiete, politische Entscheidungsträger und Versicherungsgesellschaften, die sich mit der Diagnose und Behandlung von Patienten mit nichtmelanozytärem Hautkrebs befassen. Für Patienten und deren Angehörige existiert eine gesonderte Patientenleitlinie. In diesem Teil behandeln wir die Themen Therapie der aktinischen Keratose, Morbus Bowen, Cheilitis actinica, berufsbedingte Erkrankung an AK und PEK sowie Versorgungsstrukturen.
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Affiliation(s)
- Markus V Heppt
- Hautklinik, Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen
- Comprehensive Cancer Center Europäische Metropolregion Erlangen-Nürnberg (CCC ER-EMN), Erlangen
| | - Ulrike Leiter
- Zentrum für Dermatoonkologie, Universitäts-Hautklinik, Eberhard-Karls-Universität Tübingen
| | - Theresa Steeb
- Hautklinik, Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen
- Comprehensive Cancer Center Europäische Metropolregion Erlangen-Nürnberg (CCC ER-EMN), Erlangen
| | - Mareike Alter
- Universitätsklinik für Dermatologie, Allergologie, Venerologie und Phlebologie, Johannes Wesling Klinikum, Ruhr-Universität Bochum Campus Minden
| | - Teresa Amaral
- Zentrum für Dermatoonkologie, Universitäts-Hautklinik, Eberhard-Karls-Universität Tübingen
| | - Andrea Bauer
- Klinik und Poliklinik für Dermatologie, Universitätsklinikum Carl Gustav Carus, Technische Universität Dresden
| | - Falk G Bechara
- Klinik für Dermatologie, Venerologie und Allergologie, St. Josef-Hospital, Ruhr-Universität Bochum
| | - Jürgen C Becker
- Translationale Hautkrebsforschung (TSCR), DKTK Essen/Düsseldorf, Universitätsmedizin Essen
| | | | - Helmut Breuninger
- Zentrum für Dermatoonkologie, Universitäts-Hautklinik, Eberhard-Karls-Universität Tübingen
| | - Thomas Diepgen
- Institut für Klinische Sozialmedizin, Universität Heidelberg
| | | | - Thomas Eigentler
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt Universität zu Berlin
| | | | - Moritz Felcht
- Zentrum für Dermatochirurgie, St. Josefskrankenhaus Heidelberg GmbH, Heidelberg
- Klinik für Dermatologie, Venerologie und Allergologie, Universitätsmedizin Mannheim
| | - Michael J Flaig
- Klinik und Poliklinik für Dermatologie und Allergologie, Klinikum der Universität München, LMU München
| | - Markus Follmann
- Leitlinienprogramm Onkologie, Deutsche Krebsgesellschaft e.V., Berlin
| | - Klaus Fritz
- Zentrum für Dermatologie, Laser und Ästhetische Medizin, Landau
| | - Stephan Grabbe
- Hautklinik der Universitätsmedizin, Johannes Gutenberg Universität Mainz
| | | | - Ralf Gutzmer
- Universitätsklinik für Dermatologie, Allergologie, Venerologie und Phlebologie, Johannes Wesling Klinikum, Ruhr-Universität Bochum Campus Minden
| | - Axel Hauschild
- Hautklinik, Universitätsklinikum Schleswig-Holstein, Campus Kiel
| | - Uwe Hillen
- Klinik für Dermatologie und Venerologie, Vivantes Klinikum Neukölln, Berlin
| | | | - Swen Malte John
- Abteilung Dermatologie und Umweltmedizin, Universität Osnabrück, Institut für interdisziplinäre Dermatologische Prävention und Rehabilitation (iDerm) an der Universität Osnabrück
| | - Lukas Kofler
- Studienzentrum Operative Dermatologie, Universitäts-Hautklinik, Eberhard-Karls-Universität, Tübingen
| | - Oliver Koelbl
- Klinik und Poliklinik für Strahlentherapie, Universitätsklinikum Regensburg
| | - Albrecht Krause-Bergmann
- Klinik für Unfall- und Wiederherstellungschirurgie, Orthopädie, Plastische-, Ästhetische- und Handchirurgie, Sektion für Plastische-, Ästhetische- und Handchirurgie, Gütersloh
| | | | - Steffen Krohn
- Deutsche Gesetzliche Unfallversicherung e.V. (DGUV), Berlin
| | - Thomas Langer
- Leitlinienprogramm Onkologie, Deutsche Krebsgesellschaft e.V., Berlin
| | - Carmen Loquai
- Klinikum Bremen-Ost, Klinik für Dermatologie, Dermatochirurgie, Dermatoonkologie und Allergologie, Hautkrebszentrum Bremen
| | - Christoph R Löser
- Hautklinik, Hauttumorzentrum, Klinikum Ludwigshafen gGmbH, Ludwigshafen
| | - Peter Mohr
- Elbe Kliniken Stade Buxtehude, Klinikum Buxtehude
| | | | - Monika Nothacker
- Arbeitsgemeinschaft der Wissenschaftlichen Medizinischen Fachgesellschaften (AWMF), Institut für Medizinisches Wissensmanagement, c/o Philipps Universität Marburg
| | - Christina Pfannenberg
- Klinik für Diagnostische und Interventionelle Radiologie, Eberhard-Karls-Universität Tübingen
| | - Carmen Salavastru
- Klinik für Kinderdermatologie, Onkologische Dermatologie - Forschungseinheit, Colentina Universitätsklinikum, "Carol Davila" Universitätsmedizin, Bucharest, Bukarest, Rumänien
| | - Lutz Schmitz
- CentroDerm Wuppertal, Heinz-Fangman-Straße 57, Wuppertal
| | - Eggert Stockfleth
- Klinik für Dermatologie, Venerologie und Allergologie, St. Josef-Hospital, Ruhr-Universität Bochum
| | | | | | - Susanne Voelter-Mahlknecht
- Institut für Arbeitsmedizin, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt Universität zu Berlin
| | - Dirk Vordermark
- Universitätsklinik für Strahlentherapie, Martin-Luther-Universität Halle-Wittenberg, Halle/Saale
| | | | - Julia Welzel
- Klinik für Dermatologie und Allergologie, Universitätsklinikum Augsburg Medizincampus Süd, Augsburg
| | - Kai Wermker
- Klinik für Mund-, Kiefer- und Gesichtschirurgie, Plastische und Ästhetische Operationen, Klinikum Osnabrück
| | - Susanne Wiegand
- Klinik und Poliklinik für Hals-, Nasen- und Ohrenheilkunde, Universitätsklinikum Leipzig
| | - Claus Garbe
- Zentrum für Dermatoonkologie, Universitäts-Hautklinik, Eberhard-Karls-Universität Tübingen
| | - Carola Berking
- Hautklinik, Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen
- Comprehensive Cancer Center Europäische Metropolregion Erlangen-Nürnberg (CCC ER-EMN), Erlangen
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5
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Heppt MV, Leiter U, Steeb T, Alter M, Amaral T, Bauer A, Bechara FG, Becker JC, Breitbart EW, Breuninger H, Diepgen T, Dirschka T, Eigentler T, El Gammal AKS, Felcht M, Flaig MJ, Follmann M, Fritz K, Grabbe S, Greinert R, Gutzmer R, Hauschild A, Hillen U, Ihrler S, John SM, Kofler L, Koelbl O, Krause-Bergmann A, Kraywinkel K, Krohn S, Langer T, Loquai C, Löser CR, Mohr P, Nashan D, Nothacker M, Pfannenberg C, Salavastru C, Schmitz L, Stockfleth E, Szeimies RM, Ulrich C, Voelter-Mahlknecht S, Vordermark D, Weichenthal M, Welzel J, Wermker K, Wiegand S, Garbe C, Berking C. S3 guideline "actinic keratosis and cutaneous squamous cell carcinoma"- update 2023, part 1: treatment of actinic keratosis, actinic cheilitis, cutaneous squamous cell carcinoma in situ (Bowen's disease), occupational disease and structures of care. J Dtsch Dermatol Ges 2023; 21:1249-1262. [PMID: 37845077 DOI: 10.1111/ddg.15231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Accepted: 07/27/2023] [Indexed: 10/18/2023]
Abstract
SummaryActinic keratosis (AK) are common lesions in light‐skinned individuals that can potentially progress to cutaneous squamous cell carcinoma (cSCC). Both conditions may be associated with significant morbidity and constitute a major disease burden, especially among the elderly. To establish an evidence‐based framework for clinical decision making, the guideline “actinic keratosis and cutaneous squamous cell carcinoma” was updated and expanded by the topics cutaneous squamous cell carcinoma in situ (Bowen's disease) and actinic cheilitis. The guideline is aimed at dermatologists, general practitioners, ear nose and throat specialists, surgeons, oncologists, radiologists and radiation oncologists in hospitals and office‐based settings, as well as other medical specialties, policy makers and insurance funds involved in the diagnosis and treatment of patients with AK and cSCC. A separate guideline exists for patients and their relatives. In this part, we will address aspects relating to AK, actinic cheilitis, Bowen's disease, occupational disease and care structures.
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Affiliation(s)
- Markus V Heppt
- Department of Dermatology, Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
- Comprehensive Cancer Center Erlangen-European Metropolitan Area of Nuernberg, (CCC ER-EMN), Erlangen, Germany
| | - Ulrike Leiter
- Center of Dermatooncology, University Department of Dermatooncology, Eberhard-Karls-University Tuebingen, Tübingen, Germany
| | - Theresa Steeb
- Department of Dermatology, Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
- Comprehensive Cancer Center Erlangen-European Metropolitan Area of Nuernberg, (CCC ER-EMN), Erlangen, Germany
| | - Mareike Alter
- Department of Dermatology, Johannes Wesling Medical Center, Ruhr University Bochum Campus Minden, Minden, Germany
| | - Teresa Amaral
- Center of Dermatooncology, University Department of Dermatooncology, Eberhard-Karls-University Tuebingen, Tübingen, Germany
| | - Andrea Bauer
- Department of Dermatology, University Hospital Carl Gustav Carus, Technical University Dresden, Dresden, Germany
| | - Falk G Bechara
- Department of Dermatology, Venerology, and Allergology, St. Josef-Hospital, Ruhr-University Bochum, Bochum, Germany
| | - Jürgen C Becker
- Translational Skin Cancer Research (TSCR), DKTK Essen/Düsseldorf, University Medicine Essen, Essen, Germany
| | | | - Helmut Breuninger
- Center of Dermatooncology, University Department of Dermatooncology, Eberhard-Karls-University Tuebingen, Tübingen, Germany
| | - Thomas Diepgen
- Institute of Clinical Social Medicine, University Heidelberg, Heidelberg, Germany
| | | | - Thomas Eigentler
- Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt Universität zu Berlin, Berlin, Germany
| | | | - Moritz Felcht
- Department of Dermatosurgery, St. Josefhospital Heidelberg GmbH, Heidelberg, Germany
- Department of Dermatology, Venereology und Allergy, University Medicine Mannheim, Mannheim, Germany
| | - Michael J Flaig
- Department of Dermatology and Allergy, University Hospital, LMU Munich, München, Germany
| | - Markus Follmann
- German Guideline Program in Oncology, German Cancer Society, Berlin, Germany
| | - Klaus Fritz
- Dermatology and Laser Consultation Center, Landau, Germany
| | - Stephan Grabbe
- Department of Dermatology, Mainz University Medical School, Mainz, Germany
| | - Rüdiger Greinert
- Elbe Clinics Stade Buxtehude GmbH, Medical Center Buxtehude, Buxtehude, Germany
| | - Ralf Gutzmer
- Department of Dermatology, Johannes Wesling Medical Center, Ruhr University Bochum Campus Minden, Minden, Germany
| | - Axel Hauschild
- Department of Dermatology, University Hospital Schleswig-Holstein Campus Kiel, Kiel, Germany
| | - Uwe Hillen
- Department of Dermatology & Venerology, Vivantes Hospital Neukölln, Berlin, Germany
| | | | - Swen Malte John
- Department of Dermatology and Environmental Medicine, University of Osnabrueck, Institute for Interdisciplinary Dermatological Prevention and Rehabilitation (iDerm) at the University of Osnabrueck, Osnabrück, Germany
| | - Lukas Kofler
- Study Center for Dermatosurgery, University Hospital Tuebingen, Eberhard-Karls-University, Tübingen, Germany
| | - Oliver Koelbl
- Clinic and Polyclinic for Radiooncology, University Medical Center Regensburg, Regensburg, Germany
| | - Albrecht Krause-Bergmann
- Clinic for Trauma-, Orthopedics-, and Plastic Surgery, Department for Plastic-, Aesthetic- and Handsurgery, Gütersloh, Germany
| | | | - Steffen Krohn
- German Social Accident Insurance (DGUV), Berlin, Germany
| | - Thomas Langer
- German Guideline Program in Oncology, German Cancer Society, Berlin, Germany
| | - Carmen Loquai
- Department of Dermatology, Medical Center Bremen-Ost, Bremen, Germany
| | - Christoph R Löser
- Skin Hospital, Skin Cancer Center, Ludwigshafen Hospital, Ludwigshafen, Germany
| | - Peter Mohr
- Elbe Clinics Stade Buxtehude GmbH, Medical Center Buxtehude, Buxtehude, Germany
| | - Dorothée Nashan
- Department of Dermatology, Klinikum Dortmund, Dortmund, Germany
| | - Monika Nothacker
- Association of the Scientific Medical Societies in Germany (AWMF), Institute for Medical Knowledge Management, c/o Philipps Universität Marburg, Marburg, Germany
| | - Christina Pfannenberg
- Department of Diagnostic and Interventional Radiology, Eberhard-Karls-University Tuebingen, Tübingen, Germany
| | - Carmen Salavastru
- Pediatric Dermatology Discipline, Dermato-oncology Research Facility, "Colentina" Clinical Hospital, Bucharest 020125, "Carol Davila" University of Medicine and Pharmacy, Bucharest, Rumania
| | | | - Eggert Stockfleth
- Department of Dermatology, Venerology, and Allergology, St. Josef-Hospital, Ruhr-University Bochum, Bochum, Germany
| | - Rolf-Markus Szeimies
- Department of Dermatology and Allergology, Klinikum Vest GmbH, Recklinghausen, Germany
| | - Claas Ulrich
- Dermatologie am Regierungsviertel, Berlin, Germany
| | - Susanne Voelter-Mahlknecht
- Institute of Occupational Medicine, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt Universität zu Berlin, Berlin, Germany
| | - Dirk Vordermark
- Department of Radiation Oncology, Martin-Luther-University Halle-Wittenberg, Halle/Saale, Germany
| | - Michael Weichenthal
- Department of Dermatology, University Hospital Schleswig-Holstein Campus Kiel, Kiel, Germany
| | - Julia Welzel
- Department of Dermatology, University Hospital Augsburg, Augsburg, Germany
| | - Kai Wermker
- Klinikum Osnabrueck, Department for Oral and Maxillofacial Surgery, Plastic and Aesthetic Operations, Osnabrück, Germany
| | - Susanne Wiegand
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Leipzig, Leipzig, Germany
| | - Claus Garbe
- Center of Dermatooncology, University Department of Dermatooncology, Eberhard-Karls-University Tuebingen, Tübingen, Germany
| | - Carola Berking
- Department of Dermatology, Uniklinikum Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany
- Comprehensive Cancer Center Erlangen-European Metropolitan Area of Nuernberg, (CCC ER-EMN), Erlangen, Germany
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6
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Heckel S, Bohr C, Meier J, Maurer J, Kuenzel J, Mueller K, Koelbl O, Reichert T, Vielsmeier V, Gruber I. Head and neck oncology management in the time of COVID-19: results of a head and neck cancer center. J Cancer Res Clin Oncol 2023; 149:12081-12087. [PMID: 37421460 PMCID: PMC10465623 DOI: 10.1007/s00432-023-05122-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 07/04/2023] [Indexed: 07/10/2023]
Abstract
PURPOSE Given the concerns about the effects of the COVID-19 pandemic on cancer care, we analyzed the treatment quality of the head and neck cancer center Regensburg before and throughout 2 years of the pandemic. We included data of 3 years to reflect the extended pandemic period as new developments continued to influence its course. METHODS This retrospective review included all patients diagnosed with head and neck cancer in 2019, 2020, and 2021 who had not started treatment elsewhere prior to being referred to the head and neck cancer center. We compared tumor characteristics and times to therapy of patients diagnosed before COVID-19 in 2019 (n = 253), during COVID-19 in 2020 (n = 206), and in a phase of partial normalization in a persistent pandemic situation in 2021 (n = 247). RESULTS Our data revealed no decrease in diagnoses or drift in stages toward more advanced stages. There was an increased percentage of diagnoses confirmed at the head and neck cancer center from 2019 (57.3%) to 2020 (68.0%) and to 2021 (65.6%) compared to confirmation at other institutions (2019, 42.7%; 2020, 32.0%; 2021, 34.4%; P = 0.041). Surgery and radiotherapy were performed with the same frequency. The median days between diagnosis and surgery were decreased in 2020 (19.5 days; P = 0.049) and 2021 (20.0 days; P = 0.026) in comparison to 2019 (23 days). The days to radiotherapy were not affected. CONCLUSION The data indicate a consistent oncological performance for head and neck cancer patients in all waves of the pandemic and thereafter without a decrease in diagnoses or shift in stages.
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Affiliation(s)
- Silvia Heckel
- University of Regensburg, Universitätsstraße 31, 93053, Regensburg, Germany
| | - Christopher Bohr
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Regensburg, Franz-Josef-Strauss Allee 11, 93053, Regensburg, Germany
| | - Johannes Meier
- Department of Maxillofacial Surgery, University Hospital Regensburg, Franz-Josef-Strauss Allee 11, 93053, Regensburg, Germany
| | - Julia Maurer
- University Cancer Center Regensburg, Franz-Josef-Strauss Allee 11, Regensburg, Germany
| | - Julian Kuenzel
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Regensburg, Franz-Josef-Strauss Allee 11, 93053, Regensburg, Germany
| | - Karolina Mueller
- Center for Clinical Studies, University Hospital Regensburg, Franz-Josef-Strauss Allee 11, 93053, Regensburg, Germany
| | - Oliver Koelbl
- Department of Radiation Oncology, University Hospital Regensburg, Franz-Josef-Strauss Allee 11, 93053, Regensburg, Germany
| | - Torsten Reichert
- Department of Maxillofacial Surgery, University Hospital Regensburg, Franz-Josef-Strauss Allee 11, 93053, Regensburg, Germany
| | - Veronika Vielsmeier
- Department of Otorhinolaryngology, Head and Neck Surgery, University Hospital Regensburg, Franz-Josef-Strauss Allee 11, 93053, Regensburg, Germany
| | - Isabella Gruber
- Department of Radiation Oncology, University Hospital Regensburg, Franz-Josef-Strauss Allee 11, 93053, Regensburg, Germany.
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Gruber I, Koelbl O, Treutwein M, Zeman F, Herr W, Holler E, Edinger M, Wolff D. Analysis of long-term mortality after total body irradiation-based and melphalan-based chemotherapy conditioning for acute myeloid leukemia. Ann Hematol 2023:10.1007/s00277-023-05318-y. [PMID: 37347269 DOI: 10.1007/s00277-023-05318-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Accepted: 06/12/2023] [Indexed: 06/23/2023]
Abstract
Allogeneic hematopoietic stem cell transplantation (allo-HSCT) is a curative treatment option for selected patients with acute myeloid leukemia. Yet, the influence of total body irradiation (TBI)-based conditioning as compared to non-TBI-based conditioning on long-term mortality is unclear. We retrospectively evaluated outcomes after TBI-based (n = 91) and non-TBI-based conditioning (melphalan-based, n = 248) for 1st allo-HSCT patients transplanted at the University Hospital Regensburg between 1999 and 2020. TBI was performed with an average dose rate of 4 cGy/min. Median follow-up was 8.3 years (interquartile range, 4.8-12.9 years). Cumulative incidence rates of 5-year non-relapse mortality (NRM) were 17% (95% confidence interval, CI, 10-25) and 33% (95% CI, 27-40) after TBI- and non-TBI-based conditioning (P < 0.001). Five-year cumulative incidences of relapse (CIR) were 42% (95% CI, 32-52) and 29% (95% CI, 23-35) after TBI- and non-TBI-based conditioning (P = 0.030). The 5-year OS was 54% (95% CI, 43-64) and 55% (95% CI, 48-62) after TBI- and non-TBI-based conditioning. Both groups had similar 100-day acute graft-versus-host disease (aGVHD, 43% vs. 40%) and 5-year chronic GVHD (34% vs. 36%). The multivariable regression models found no associations of TBI with the outcomes NRM, CIR, PFS, OS, aGVHD, and cGVHD. TBI was no risk factor for NRM, even including mortality caused by secondary malignancies. NRM was influenced by patient age, advanced disease status, and the use of female donors for male recipients. TBI- and non-TBI-based conditioning appear to be equally effective and tolerable for AML patients eligible for 1st allo-HSCT.
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Affiliation(s)
- Isabella Gruber
- Department of Radiation Oncology, University Hospital Regensburg, Regensburg, Germany.
| | - Oliver Koelbl
- Department of Radiation Oncology, University Hospital Regensburg, Regensburg, Germany
| | - Marius Treutwein
- Department of Radiation Oncology, University Hospital Regensburg, Regensburg, Germany
| | - Florian Zeman
- Center for Clinical Studies, University Hospital Regensburg, Regensburg, Germany
| | - Wolfgang Herr
- Department of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany
| | - Ernst Holler
- Department of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany
| | - Matthias Edinger
- Department of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany
- Leibniz Institute for Immunotherapy, Regensburg, Germany
| | - Daniel Wolff
- Department of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany
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Gruber I, Stark P, Weidner K, Treutwein M, Koelbl O. Fractionated stereotactic radiotherapy of brain metastases: results of a retrospective study. Radiat Oncol 2023; 18:85. [PMID: 37217924 DOI: 10.1186/s13014-023-02277-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Accepted: 05/04/2023] [Indexed: 05/24/2023] Open
Abstract
BACKGROUND Lasting local control of brain metastases following stereotactic radiotherapy is becoming increasingly relevant since systemic treatment constantly improves the prognosis of patients with extracranial metastases. METHODS 73 patients with 103 brain metastases received hypofractionated stereotactic radiotherapy (FSRT) in 6 fractions of 5 Gy between January 2017 and December 2021 at the University Hospital Regensburg, Germany. The study retrospectively evaluated local progression free survival (LPFS), overall survival (OS) and distant brain progression free survival (DPFS) of patients without prior radiotherapy of the brain. Response rate and brain radiation necrosis were reported. Cox proportional hazard models evaluated prognostic factors of OS and LPFS. RESULTS The median patient age was 61.0 years (Interquartile range, IQR 51.0, 67.5). The most common tumor types were malignant melanoma (34.2%) and non-small cell lung adenocarcinoma (26.0%). The median gross tumor volume (GTV) was 0.9 cm³ (IQR 0.4, 3.6). The median follow-up time of all patients was 36.3 months (95%CI 29.1, 43.4). The median OS was 17.4 months (95%CI 9.9, 24.9). Overall survival rates at 6-, 12-, 18-, 24-, and 30 months were 81.9%, 59.1%, 49.0%, 41.3%, and 37.2%, retrospectively. The mean LPFS was 38.1 months (95%CI 31.4, 44.9), while the median LPFS has not been reached. LPFS rates at 6-, 12-, 18-, 24- and 30 months were 78.9%, 68.7%, 64.3%, 61.6% and 58.7%, retrospectively. Median DPFS of all patients was 7.7 months (95%CI 6.1, 9.3). Six, 12-, 18-, 24- and 30 months DPFS rates were 62.1%, 36.3%, 31.1%, 24.8% and 21.7%. Five brain metastases (4.8%) developed brain radiation necrosis. In multivariate analysis, the number of brain metastases negatively affected LPFS. Non-melanoma and non-renal cell cancer was associated with a higher chance of LPFS in comparison to other cancer. A GTV > 1.5 cm³ translated into a higher risk of death compared to a GTV ≤ 1.5 cm³ and Karnofsky performance score was predictive of OS. CONCLUSIONS FSRT in 6 fractions of 5 Gy seems to be an effective treatment with an acceptable local control for patients with brain metastases although melanoma and renal cell cancer seem to have a worse local control in comparison to other cancer. TRIAL REGISTRATION This study is retrospectively registered.
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Affiliation(s)
- Isabella Gruber
- Department of Radiation Oncology, University Hospital Regensburg, Franz-Josef-Strauss Allee 11, Regensburg, Bavarian, Germany.
| | - Philipp Stark
- University of Regensburg, Universitätsstraße 31, Regensburg, Bavarian, Germany
| | - Karin Weidner
- Department of Radiation Oncology, University Hospital Regensburg, Franz-Josef-Strauss Allee 11, Regensburg, Bavarian, Germany
| | - Marius Treutwein
- Department of Radiation Oncology, University Hospital Regensburg, Franz-Josef-Strauss Allee 11, Regensburg, Bavarian, Germany
| | - Oliver Koelbl
- Department of Radiation Oncology, University Hospital Regensburg, Franz-Josef-Strauss Allee 11, Regensburg, Bavarian, Germany
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9
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Gruber I, Koelbl O, Herr W, Holler E, Edinger M, Wolff D. Impact of chronic graft-versus-host disease on quality of life and cognitive function of long-term transplant survivors after allogeneic hematopoietic stem cell transplantation with total body irradiation. Radiat Oncol 2022; 17:195. [PMID: 36447269 PMCID: PMC9706937 DOI: 10.1186/s13014-022-02161-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Accepted: 11/15/2022] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND Total body irradiation (TBI)-based-conditioning before allogeneic hematopoietic stem cell transplantation (allo-HSCT) is standard of care in patients with acute myeloid leukemia (AML) but can cause long-term morbidity. Data on the impact of chronic Graft-versus-host disease (cGvHD) on cognitive function (CF) and quality of life (QoL) of long-term transplant survivors are sparse. METHODS We analyzed patient-reported outcomes focusing on progression-free AML patients and 1st allo-HSCT applying a standardized TBI-technique with an average dose rate of 4 cGy/min to the total body and lung shielding in case of doses > 8 Gy. Instruments included the Functional Assessment of Cancer Therapy-Bone marrow transplant (FACT-BMT, version 4), the FACT-Cognition Function (FACT-Cog, version 3) and the Patient Health Questionaire-4 (PHQ-4). We put focus on the impact of cGvHD and compared the results to normative data derived from the general population. RESULTS Out of 41 eligible patients contacted, 32 (78.0%) patients with a medium follow-up of 154 months (Interquartile range 113, 191 months) participated in the study. Eleven patients (34.4%) had active cGvHD, 11 (34.4%) resolved cGvHD and 10 (31.3%) never had cGvHD. Patients with active cGvHD had poorer FACT-BMT, FACT-Cog and higher PHQ-4 scores compared to patients with resolved cGvHD or who never had cGvHD. Outcomes were similar in patients with resolved cGvHD and those who never had cGvHD. Patients with active cGvHD had similar FACT-Cog, but lower FACT-BMT in comparison to normative data. However, the overall patient sample had similar FACT-BMT and FACT-Cog in comparison to normative data. CONCLUSION Our data indicate that CF of long-term survivors upon TBI-based allo-HSCT is not impaired, even in the presence of active cGvHD. However, active cGvHD has a negative impact on QoL. Trial registration The local Ethics Board of the University of Regensburg approved this study (Number 20-1810_1-101).
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Affiliation(s)
- Isabella Gruber
- grid.411941.80000 0000 9194 7179Department of Radiation Oncology, University Hospital Regensburg, Regensburg, Germany
| | - Oliver Koelbl
- grid.411941.80000 0000 9194 7179Department of Radiation Oncology, University Hospital Regensburg, Regensburg, Germany
| | - Wolfgang Herr
- grid.411941.80000 0000 9194 7179Department of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany
| | - Ernst Holler
- grid.411941.80000 0000 9194 7179Department of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany
| | - Matthias Edinger
- grid.411941.80000 0000 9194 7179Department of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany ,grid.515309.bLeibniz Institute for Immunotherapy, Regensburg, Germany
| | - Daniel Wolff
- grid.411941.80000 0000 9194 7179Department of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany
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10
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Gruber I, Weidner K, Koelbl O. Noninvasive treatment of two deeply invasive cutaneous squamous cell carcinomas of the midface located close to the orbits with intensity‐modulated arc therapy: A case report. Clin Case Rep 2022; 10:e6149. [PMID: 35898739 PMCID: PMC9309616 DOI: 10.1002/ccr3.6149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 06/06/2022] [Accepted: 07/16/2022] [Indexed: 11/20/2022] Open
Abstract
Definitive radiotherapy is a curative and noninvasive treatment modality for cutaneous squamous cell carcinomas of the midface when surgery has an impact on function and cosmetics. Volumetric modulated arc therapy provides optimal dose coverage for complex‐shaped tumors without compromising adjacent organs at risk.
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Affiliation(s)
- Isabella Gruber
- Department of Radiation Oncology University Hospital of University Regensburg Regensburg Germany
| | - Karin Weidner
- Department of Radiation Oncology University Hospital of University Regensburg Regensburg Germany
| | - Oliver Koelbl
- Department of Radiation Oncology University Hospital of University Regensburg Regensburg Germany
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Gruber I, Koelbl O. Dramatic radiotherapy response of a giant T4 cutaneous squamous cell carcinoma of the scalp with extensive bone destruction: a case report. J Med Case Rep 2021; 15:610. [PMID: 34952636 PMCID: PMC8709952 DOI: 10.1186/s13256-021-03213-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 11/29/2021] [Indexed: 11/21/2022] Open
Abstract
Background Patients with large cutaneous squamous cell carcinoma of the scalp are a treatment challenge. We report a case of dramatic radiotherapy response of a patient with a giant cutaneous squamous cell carcinoma of the scalp with extensive skull destruction and suspected infiltration of the dura mater and superior sagittal sinus. This case is the first report of this kind in the literature that shows that large bone defects can heal with the resolution of tumor and inflammation by secondary intention without surgical reconstruction. We want to put an end to concerns about radiocurability of tumors with extensive bone involvement, and show sustained complete response after definitive radiotherapy and programmed cell death protein-1 inhibiting antibody therapy. Case presentation A 74-year-old White man presented with a 7.2 × 6.8 × 5.5 cm painless tumor on the right parietal region of the scalp. Medical imaging revealed widespread destruction of the skull and suspected infiltration of the dura mater and superior sagittal sinus. Biopsies showed cutaneous squamous cell carcinoma (cT4a cN0 cM0, stage IVA). The patient was treated with a total dose of 60 Gy, at 2 Gy per daily fraction with volumetric modulated arc therapy using 6 megavoltage photons. The biologically effective dose (alpha/beta 10 Gy) was 72 Gy. The tumor response correlated with dose received. The patient had a massive tumor necrosis secondary to tumor shrinkage after 18 fractions (36 Gy, biologically effective dose 43.2 Gy). Leakage of cerebrospinal fluid did not occur. Radiotherapy did not hamper the patient’s quality of life. The patient had a clear regression of the initial tumor on the final day of radiotherapy. The bone defect healed by secondary intention without surgical interventions. The patient achieved a complete response with a good cosmetic result after 82 days follow-up. He started a programmed cell death protein-1 inhibiting antibody therapy with cemiplimab 2 months after radiotherapy, and is now at 10 months follow-up without evidence of recurrence. Conclusion Definitive radiotherapy is a safe and highly effective therapy for giant tumors of the scalp with extensive bone destruction. We report a sustained complete response with a good cosmetic result after secondary wound healing.
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Affiliation(s)
- Isabella Gruber
- Department of Radiation Oncology, University Hospital of University Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany.
| | - Oliver Koelbl
- Department of Radiation Oncology, University Hospital of University Regensburg, Franz-Josef-Strauss-Allee 11, 93053, Regensburg, Germany
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Treutwein M, Loeschel R, Hipp M, Koelbl O, Dobler B. Secondary malignancy risk for patients with localized prostate cancer after intensity-modulated radiotherapy with and without flattening filter. J Appl Clin Med Phys 2020; 21:197-205. [PMID: 33147377 PMCID: PMC7769399 DOI: 10.1002/acm2.13088] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 09/16/2020] [Accepted: 07/24/2020] [Indexed: 12/20/2022] Open
Abstract
Men treated for localized prostate cancer by radiotherapy have often a remaining life span of 10 yr or more. Therefore, the risk for secondary malignancies should be taken into account. Plans for ten patients were evaluated which had been performed on an Oncentra® treatment planning system for a treatment with an Elekta Synergy™ linac with Agility™ head. The investigated techniques involved IMRT and VMTA with and without flattening filter. Different dose response models were applied for secondary carcinoma and sarcoma risk in the treated region and also in the periphery. As organs at risk we regarded for carcinoma risk urinary bladder, rectum, colon, esophagus, thyroid, and for sarcoma risk bone and soft tissue. The excess absolute risk (EAR) was found very similar in the treated region for both techniques (IMRT and VMAT) and also for both with and without flattening filter. The secondary sarcoma risk resulted about one magnitude smaller than the secondary carcinoma risk. The EAR to the peripheral organs was statistically significant reduced by application of the flattening filter free mode concerning the flattening filter as main source of scattered dose. Application of flattening filter free mode can thus support to reduce second malignancy risk for patients with localized prostate cancer.
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Affiliation(s)
- Marius Treutwein
- Department for radiotherapy, Regensburg University Medical Center, Regensburg, Germany
| | - Rainer Loeschel
- Faculty of computer science and mathematics, Ostbayerische Technische Hochschule, Regensburg, Germany
| | - Matthias Hipp
- Department for radiotherapy, Regensburg University Medical Center, Regensburg, Germany.,Strahlentherapie, Klinikum St. Marien, Amberg, Germany
| | - Oliver Koelbl
- Department for radiotherapy, Regensburg University Medical Center, Regensburg, Germany
| | - Barbara Dobler
- Department for radiotherapy, Regensburg University Medical Center, Regensburg, Germany
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13
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Reinert C, Gerken M, Rathberger K, Krueger K, Klinkhammer-Schalke M, Lindberg-Scharf P, Koelbl O, Proescholdt MA, Riemenschneider MJ, Pukrop T, Bumes E, Hutterer M, Hau P. Single-institution cross-sectional study to evaluate need for information and need for referral to psychooncology care in association with depression in brain tumor patients and their family caregivers. BMC Psychol 2020; 8:96. [PMID: 32912313 PMCID: PMC7488319 DOI: 10.1186/s40359-020-00460-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Accepted: 08/06/2020] [Indexed: 01/30/2023] Open
Abstract
Background The prognosis of patients with brain tumors is widely varying. Psychooncologic need and depression are high among these patients and their family caregivers. However, the need for counselling and need for referral to psychooncology care is often underestimated. Methods We performed a single-institution cross-sectional study to evaluate psychooncologic need, depression and information need in both patients and their family caregivers. The Hornheider Screening Instrument (HSI) and the Patient Health Questionnaire (PHQ-9) were used to evaluate psychooncologic need and depression, and a study-specific questionnaire was developed to evaluate information need. Multivariable analyses were performed to detect correlations. Results A total of 444 patients and their family caregivers were approached to participate, with a survey completion rate of 35.4%. More than half of the patients and family caregivers were in need for referral to psychooncology care and 31.9% of patients suffered from clinically relevant depression. In multivariable analysis, psychooncologic need were positively associated with mild (odds ratio, OR, 7.077; 95% confidence interval, CI, 2.263–22.137; p = 0.001) or moderate to severe (OR 149.27, 95% CI 26.690–737.20; p < 0.001) depression. Patient information need was associated with depression (OR 3.007, 95% CI 1.175–7.695; p = 0.022). Conclusions Unmet counselling need in brain tumor patients and their family caregivers associate to high psychooncologic need and depression. Adequate information may decrease the need for referral to psychooncology care and treatment of depression in these patients. Future studies should further explore these relations to promote development of supportive structures.
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Affiliation(s)
- Christiane Reinert
- Department of Neurology and Wilhelm Sander-NeuroOncology Unit, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, Universitätsstrasse 84, 93053, Regensburg, Germany
| | - Michael Gerken
- Tumor Center - Institute for Quality Assurance and Health Services Research, University of Regensburg, Am Biopark 9, 93053, Regensburg, Germany
| | - Katharina Rathberger
- Department of Neurology and Wilhelm Sander-NeuroOncology Unit, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, Universitätsstrasse 84, 93053, Regensburg, Germany
| | - Katharina Krueger
- Department of Neurology and Wilhelm Sander-NeuroOncology Unit, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, Universitätsstrasse 84, 93053, Regensburg, Germany
| | - Monika Klinkhammer-Schalke
- Tumor Center - Institute for Quality Assurance and Health Services Research, University of Regensburg, Am Biopark 9, 93053, Regensburg, Germany
| | - Patricia Lindberg-Scharf
- Tumor Center - Institute for Quality Assurance and Health Services Research, University of Regensburg, Am Biopark 9, 93053, Regensburg, Germany
| | - Oliver Koelbl
- Department of Radiotherapy and Radiation Oncology, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Martin A Proescholdt
- Department of Neurosurgery, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Markus J Riemenschneider
- Department of Neuropathology, Regensburg University Hospital, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Tobias Pukrop
- Department of Internal Medicine III, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
| | - Elisabeth Bumes
- Department of Neurology and Wilhelm Sander-NeuroOncology Unit, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, Universitätsstrasse 84, 93053, Regensburg, Germany
| | - Markus Hutterer
- Department of Neurology and Wilhelm Sander-NeuroOncology Unit, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, Universitätsstrasse 84, 93053, Regensburg, Germany.,Department of Neurology 1, NeuroMed Campus, Kepler University Hospital Linz, Wagner-Jauregg-Weg 15, A-4020, Linz, Austria
| | - Peter Hau
- Department of Neurology and Wilhelm Sander-NeuroOncology Unit, University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, Universitätsstrasse 84, 93053, Regensburg, Germany.
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14
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Treutwein M, Steger F, Loeschel R, Koelbl O, Dobler B. The influence of radiotherapy techniques on the plan quality and on the risk of secondary tumors in patients with pituitary adenoma. BMC Cancer 2020; 20:88. [PMID: 32013920 PMCID: PMC6998093 DOI: 10.1186/s12885-020-6535-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Accepted: 01/13/2020] [Indexed: 12/20/2022] Open
Abstract
Background This planning study compares different radiotherapy techniques for patients with pituitary adenoma, including flatness filter free mode (FFF), concerning plan quality and secondary malignancies for potentially young patients. The flatness filter has been described as main source of photon scatter. Material and methods Eleven patients with pituitary adenoma were included. An Elekta Synergy™ linac was used in the treatment planning system Oncentra® and for the measurements. 3D plans, IMRT, and VMAT plans and non-coplanar varieties were considered. The plan quality was evaluated regarding homogeneity, conformity, delivery time and dose to the organs at risk. The secondary malignancy risk was calculated from dose volume data and from measured dose to the periphery using different models for carcinoma and sarcoma risk. Results The homogeneity and conformity were nearly unchanged with and without flattening filter, neither was the delivery time found substantively different. VMAT plans were more homogenous, conformal and faster in delivery than IMRT plans. The secondary cancer risk was reduced with FFF both in the treated region and in the periphery. VMAT plans resulted in a higher secondary brain cancer risk than IMRT plans, but the risk for secondary peripheral cancer was reduced. Secondary sarcoma risk plays a minor role. No advantage was found for non-coplanar techniques. The FFF delivery times were not shortened due to additional monitor units needed and technical limitations. The risk for secondary brain cancer seems to depend on the irradiated volume. Secondary sarcoma risk is much smaller than carcinoma risk in accordance to the results of the atomic bomb survivors. The reduction of the peripheral dose and resulting secondary malignancy risk for FFF is statistically significant. However, it is negligible in comparison to the risk in the treated region. Conclusion Treatments with FFF can reduce secondary malignancy risk while retaining similar quality as with flattening filter and should be preferred. VMAT plans show the best plan quality combined with lowest peripheral secondary malignancy risk, but highest level of second brain cancer risk. Taking this into account VMAT FFF seems the most advantageous technique for the treatment of pituitary adenomas with the given equipment.
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Affiliation(s)
- Marius Treutwein
- Department for radiotherapy, Regensburg University Medical Center, Regensburg, Germany.
| | - Felix Steger
- Department for radiotherapy, Regensburg University Medical Center, Regensburg, Germany
| | - Rainer Loeschel
- Faculty of computer science and mathematics, Ostbayerische Technische Hochschule, Regensburg, Germany
| | - Oliver Koelbl
- Department for radiotherapy, Regensburg University Medical Center, Regensburg, Germany
| | - Barbara Dobler
- Department for radiotherapy, Regensburg University Medical Center, Regensburg, Germany
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15
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Wimmer T, Ortmann O, Gerken M, Klinkhammer-Schalke M, Koelbl O, Inwald EC. Adherence to guidelines and benefit of adjuvant radiotherapy in patients with invasive breast cancer: results from a large population-based cohort study of a cancer registry. Arch Gynecol Obstet 2019; 299:1131-1140. [PMID: 30607594 DOI: 10.1007/s00404-018-5030-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 12/14/2018] [Indexed: 01/22/2023]
Abstract
PURPOSE According to German S3 guidelines, radiotherapy (RT) is indicated in patients with invasive breast cancer after breast-conserving therapy (BCT). The aim of this analysis was to assess adherence to guidelines, long-term survival, recurrence rates, and recurrence-free survival after adjuvant RT in patients with BCT in daily clinical practice. METHODS This retrospective cohort study comprised data from the population-based clinical cancer registry of the Tumor Centre Regensburg (Bavaria, Germany). 6370 patients with non-metastatic invasive breast cancer and UICC tumor stages I, II, and III who were treated in certified breast cancer centers by BCT and diagnosed between 2003 and 2013 were included in the study. RESULTS 6184 (97.1%) breast cancer patients received guideline concordant RT and showed a 3-year overall survival (OAS) of 96.8% in contrast to 90.9% in patients without RT (5-year OAS of 93.1% vs. 79.0%, p < 0.001). In multivariable Cox regression models, better overall survival was confirmed for the RT group (HR 0.64, 95% CI 0.46-0.88, p = 0.007). The 5-year local recurrence-free survival rate (RFS) in the irradiated patients was 92.1% vs. 62.0% in the comparison group (p < 0.001). The 10-year RFS was 80.5% vs. 36.0% (p < 0.001). This difference persisted after adjusting in multivariable analysis (HR 0.20, 95% CI 0.16-0.26, p < 0.001). CONCLUSIONS This population-based analysis showed that the implementation of German guidelines in clinical routine was successful and guideline concordant adjuvant radiotherapy after BCT leads to better overall and recurrence-free survival and lower local recurrence rates.
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Affiliation(s)
- Theresa Wimmer
- Faculty of Medicine, University of Regensburg, Universitaetsstraße 31, 93053, Regensburg, Germany
| | - Olaf Ortmann
- Department of Gynecology and Obstetrics, University Medical Center Regensburg, Landshuter Straße 65, 93053, Regensburg, Germany
| | - Michael Gerken
- Tumor Center-Institute for Quality Management and Health Services Research, University of Regensburg, Am BioPark 9, 93053, Regensburg, Germany
| | - Monika Klinkhammer-Schalke
- Department for Radiotherapy, Regensburg University Medical Center Regensburg, Franz-Josef-Strauss-Allee 24, 93053, Regensburg, Germany.
| | - Oliver Koelbl
- Department for Radiotherapy, Regensburg University Medical Center Regensburg, Franz-Josef-Strauss-Allee 24, 93053, Regensburg, Germany
| | - Elisabeth C Inwald
- Department of Gynecology and Obstetrics, University Medical Center Regensburg, Landshuter Straße 65, 93053, Regensburg, Germany
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16
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Alvarez Moret J, Obermeier T, Pohl F, Loeschel R, Koelbl O, Dobler B. Second cancer risk after radiation therapy of ependymoma using the flattening filter free irradiation mode of a linear accelerator. J Appl Clin Med Phys 2018; 19:632-639. [PMID: 30125453 PMCID: PMC6123158 DOI: 10.1002/acm2.12438] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Revised: 06/06/2018] [Accepted: 07/16/2018] [Indexed: 12/05/2022] Open
Abstract
Pediatric patients suffering from ependymoma are usually treated with cranial or craniospinal three‐dimensional (3D) conformal radiotherapy (3DCRT). Intensity‐modulated techniques spare dose to the surrounding tissue, but the risk for second malignancies may be increased due to the increase in low‐dose volume. The aim of this study is to investigate if the flattening filter free (FFF) mode allows reducing the risk for second malignancies compared to the mode with flattening filter (FF) for intensity‐modulated techniques and to 3DCRT. A reduction of the risk would be advantageous for treating pediatric ependymoma. 3DCRT was compared to intensity‐modulated radiation therapy (IMRT) and volumetric‐modulated arc therapy (VMAT) with and without flattening filter. Dose–volume histograms (DVHs) were compared to evaluate the plan quality and used to calculate the excess absolute risk (EAR) to develop second cancer in the brain. Dose verification was performed with a two‐dimensional (2D) ionization chamber array and the out‐of‐field dose was measured with an ionization chamber to determine the EAR in peripheral organs. Delivery times were measured. Both VMAT and IMRT achieved similar plan quality in terms of dose sparing in the OAR and higher PTV coverage as compared to 3DCRT. Peripheral dose in low‐dose region, which is proportional to the EAR in organs located in this region, for example, gonads, bladder, or bowel, could be significantly reduced using FFF. The lowest peripheral EAR and lowest delivery times were hereby achieved with VMATFFF. The EAR calculated based on DVH in the brain could not be reduced using FFF mode. VMATFFF improved the target coverage and homogeneity and kept the dose in the OAR similar compared to 3DCRT. In addition, delivery times were significantly reduced using VMATFFF. Therefore, for radiotherapy of ependymoma patients, VMATFFF may be considered advantageous for the combination of Elekta Synergy linac and Oncentra External Beam planning system used in this study.
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Affiliation(s)
- Judit Alvarez Moret
- Department of Radiotherapy, Regensburg University Medical Center, Regensburg, Germany
| | - Tina Obermeier
- Department of Radiotherapy, Regensburg University Medical Center, Regensburg, Germany
| | - Fabian Pohl
- Department of Radiotherapy, Regensburg University Medical Center, Regensburg, Germany
| | - Rainer Loeschel
- Department of Computer Science and Mathematics, University of Applied Sciences, OTH Regensburg, Regensburg, Germany
| | - Oliver Koelbl
- Department of Radiotherapy, Regensburg University Medical Center, Regensburg, Germany
| | - Barbara Dobler
- Department of Radiotherapy, Regensburg University Medical Center, Regensburg, Germany
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17
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Dobler B, Treutwein M, Moret JA, Obermeier T, Maier J, Koelbl O. [P278] The use of flattening filter free irradiation mode in normo-fractionated treatments. Phys Med 2018. [DOI: 10.1016/j.ejmp.2018.06.555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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18
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Katsilieri Z, Maerz M, Loeschel R, Koelbl O, Dobler B. [OA034] Error detection sensitivity of a commercially available system for 3D plan verifications. Phys Med 2018. [DOI: 10.1016/j.ejmp.2018.06.106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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19
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Treutwein M, Hipp M, Koelbl O, Dobler B. Volumetric-modulated arc therapy and intensity-modulated radiation therapy treatment planning for prostate cancer with flattened beam and flattening filter free linear accelerators. J Appl Clin Med Phys 2017; 18:307-314. [PMID: 28857432 PMCID: PMC5875831 DOI: 10.1002/acm2.12168] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 07/17/2017] [Accepted: 07/20/2017] [Indexed: 12/25/2022] Open
Abstract
This study on patients with localized prostate cancer was set up to investigate valuable differences using flattened beam (FB) and flattening filter free (FFF) mode in the application of intensity-modulated radiotherapy (IMRT) and volumetric-modulated arc therapy (VMAT). For ten patients, four different plans were calculated with Oncentra planning system of Elekta, using Synergy machines: IMRT and VMAT, with and without flattening filter. Homogeneity and conformity indexes, dose to the organs at risk, and measurements of peripheral dose and dosimetric plan verification including record of the delivery times were analyzed and statistically evaluated. The indexes for homogeneity and conformity (CTV and PTV) are either advantageous or not significantly different for FFF compared to FB with one minor exception. Regarding the doses to the organs at risk and the measured peripheral dose, equivalent or lower doses were delivered for FFF than with FB. Furthermore, the delivery times were significantly shorter for FFF. VMAT compared to IMRT reveals benefits or at least equivalent values. VMAT-FFF combines the most advantageous plan quality parameters with the shortest delivery times and reduced peripheral dose and is therefore recommended for the given equipment and cancer localization.
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Affiliation(s)
- Marius Treutwein
- Department for Radiotherapy, Regensburg University Medical Center, Regensburg, Germany
| | - Matthias Hipp
- Department for Radiotherapy, Regensburg University Medical Center, Regensburg, Germany.,Klinikum St. Marien, Strahlentherapie, Amberg, Germany
| | - Oliver Koelbl
- Department for Radiotherapy, Regensburg University Medical Center, Regensburg, Germany
| | - Barbara Dobler
- Department for Radiotherapy, Regensburg University Medical Center, Regensburg, Germany
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Dobler B, Obermeier T, Hautmann MG, Khemissi A, Koelbl O. Simultaneous integrated boost therapy of carcinoma of the hypopharynx/larynx with and without flattening filter - a treatment planning and dosimetry study. Radiat Oncol 2017; 12:114. [PMID: 28679448 PMCID: PMC5499025 DOI: 10.1186/s13014-017-0850-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Accepted: 06/28/2017] [Indexed: 01/26/2023] Open
Abstract
Background The aim of this study was to investigate if the flattening filter free (FFF) irradiation mode of a linear accelerator (linac) is advantageous as compared to the flat beam (FF) irradiation mode in intensity modulated radiation therapy (IMRT) and volumetric modulated arc therapy (VMAT) for carcinoma of the hypopharynx / larynx. Methods Four treatment plans were created for each of 10 patients for an Elekta Synergy linac with Agility collimating device, a dual arc VMAT and a nine field step and shoot IMRT each with and without flattening filter. Plan quality was compared considering target coverage and dose to the organs at risk. All plans were verified by a 2D–ionization-chamber-array and delivery times were compared. Peripheral point doses were determined as a measure of second cancer risk. The Wilcoxon test was used for statistical analysis with a significance level of 0.05. Results Plan quality was similar for all four treatment plans without statistically significant differences of clinical relevance. The clinical goals were met in all plans for the PTV-SIB (V95% > 95%), the spinal cord (D1ccm < 45 Gy) and the brain stem (D1ccm < 48 Gy). For the parotids, the goal of D50% < 30 Gy was met in 70% and 60% of the plans for the left and right parotid respectively, and the V95% of the SIB reached an average of 94%. Delivery times were similar for FF and FFF and significantly decreased by around 70% for VMAT as compared to IMRT. Peripheral doses were significantly reduced by 18% in FFF mode as compared to FF and by 26% for VMAT as compared to IMRT. Lowest peripheral doses were found for VMAT FFF, followed by VMAT FF. Conclusions The FFF mode of a linear accelerator is advantageous for the treatment of hypopharynx/larynx carcinoma only with respect to reduction of second cancer induction in peripheral organs for the combination of Elekta Synergy linacs and Oncentra® External Beam v4.5 treatment planning system. This might be of interest in a therapy with curative intent.
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Affiliation(s)
- Barbara Dobler
- Department of Radiotherapy, Regensburg University Medical Center, Regensburg, Germany.
| | - Tina Obermeier
- Department of Radiotherapy, Regensburg University Medical Center, Regensburg, Germany
| | - Matthias G Hautmann
- Department of Radiotherapy, Regensburg University Medical Center, Regensburg, Germany
| | - Amine Khemissi
- Department of Radiotherapy, Regensburg University Medical Center, Regensburg, Germany
| | - Oliver Koelbl
- Department of Radiotherapy, Regensburg University Medical Center, Regensburg, Germany
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Fietkau R, Iro H, Hecht M, Hofner B, Gefeller O, Balermpas P, Roedel C, Hautmann M, Koelbl O, Leber H, Salay A, Ruebe C, Breinl P, Krings W, Gripp S, Wollenberg B, Keerl R, Schreck U, Siekmeyer B, Grabenbauer G. Randomised phase-III-trial of concurrent chemoradiation (CRT) for locally advanced head and neck cancer (stage III-IVB): Comparing dose reduced radiotherapy (63,6 Gy) with paclitaxel/cisplatinum to standard radiotherapy (70,6 Gy) with fluorouracil/cisplatinum. J Clin Oncol 2017. [DOI: 10.1200/jco.2017.35.15_suppl.6016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
6016 Background: Concurrent CRT with 70.6 Gy is the standard treatment for locally advanced head and neck cancer (LA-SCCHN). There exist no prospective data on safety and efficacy of a reduced radiation (RT) dose. Methods: Pts with stage III-IVB LA-SCCHN were randomized 1:1 to receive 70.6 Gy with concurrent cisplatinum (20mg/m²/d IV on days 1-5 and 29-33) and fluorouracil (600 mg/m²/d CIV on days 1-5 and 29-33) (standard arm A) versus 63,6 Gy with intensified chemotherapy using concurrent cisplatinum (20mg/m²/d IV on days 1-4 and 29-32) and paclitaxel (20mg/m²/d IV on days 2, 5, 8, 11 and 25, 30, 33, 36) (experimental arm B). After a planned interim analysis recruitment was stopped due to statistical reasons. Results: Between 06/2010 and 02/2015 a total of 221 pts were randomized with 105 pts receiving treatment in arm A and 112 in arm B (4 pts dropped out). Median follow-up was 38 months. Pts’ characteristics: Oral cavity (15%), oropharynx (54%), hypopharynx (28%), larynx (14%); 17 pts had more than one primary site; tumor stage: III (14%), IV (86%); HPV-status (p16) was positive in 20%, negative in 38%, currently pending in 42%. A total of 96 PFS-related events occurred. 3-year PFS (ITT) was 58% in the standard arm A and 48% in experimental arm B (p = 0.454). 3-year OS (ITT) was 64% in arm A and 59% in arm B (p = 0.688). 3-year rates of distant metastases, loco-regional recurrences and death were 10% vs 12%, 17% vs 21% and 15% vs 19% for pts in arm A and B, respectively. As for the p16-positive subgroup, 3-year PFS/OS were 77%/76% in arm A (n = 21) and 69%/80% in arm B (n = 22), respectively. Grade 3+ hematologic adverse events during therapy (arm A/arm B): Anemia 11%/4% (p = 0.038); neutropenia 40%/16% (p < 0.001); thrombocytopenia 8%/3% (p = 0.130). Conclusions: These preliminary results indicate that pts receiving concurrent CRT for LA-SCCHN did not benefit from a lower total RT dose of 63.6Gy despite intensified chemotherapy. However, in the subgroup of p16-positive pts a reduced RT dose may be sufficiently effective. Clinical trial information: NCT01126216.
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Affiliation(s)
- Rainer Fietkau
- Universitatsklinikum Erlangen, Department of Radiation Oncology, Erlangen, Germany
| | | | | | | | | | - Panagiotis Balermpas
- German Cancer Research Center (DKFZ), Heidelberg, Germany and German Cancer Consortium (DKTK) partner site Frankfurt, Frankfurt, Germany
| | | | - Matthias Hautmann
- Department for Radiation Oncology, University of Regensburg, Regensburg, Germany
| | - Oliver Koelbl
- Department for Radiation Oncology, University of Regensburg, Regensburg, Germany
| | - Horst Leber
- Bruederkrankenhaus St. Josef, Klinik fuer Strahlentherapie, Paderborn, Germany
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Treutwein M, Hipp M, Loeschel R, Koelbl O, Dobler B. EP-1615: Second cancer risk after radiation of localized prostate cancer with and without flattening filter. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)32050-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Härtl P, Koelbl O, Dobler B. Poster session 35: Radiation therapy VI. BIOMED ENG-BIOMED TE 2017; 62:s431-s439. [DOI: 10.1515/bmt-2017-5080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Maerz M, Morenz A, Puerckhauer K, Koelbl O, Behr M, Pohl F, Dobler B. Impact of iterative metal artifact reduction on dose calculation accuracy – Phantom study. Phys Med 2016. [DOI: 10.1016/j.ejmp.2016.07.465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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Maier J, Knott B, Maerz M, Loeschel R, Koelbl O, Dobler B. Simultaneous integrated boost (SIB) radiation therapy of right sided breast cancer with and without flattening filter - A treatment planning study. Radiat Oncol 2016; 11:111. [PMID: 27577561 PMCID: PMC5006633 DOI: 10.1186/s13014-016-0687-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2016] [Accepted: 08/19/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The aim of the study was to compare the two irradiation modes with (FF) and without flattening filter (FFF) for three different treatment techniques for simultaneous integrated boost radiation therapy of patients with right sided breast cancer. METHODS An Elekta Synergy linac with Agility collimating device is used to simulate the treatment of 10 patients. Six plans were generated in Monaco 5.0 for each patient treating the whole breast and a simultaneous integrated boost (SIB) volume: intensity modulated radiation therapy (IMRT), volumetric modulated arc therapy (VMAT) and a tangential arc VMAT (tVMAT), each with and without flattening filter. Plan quality was assessed considering target coverage, sparing of the contralateral breast, the lungs, the heart and the normal tissue. All plans were verified by a 2D-ionisation-chamber-array and delivery times were measured and compared. The Wilcoxon test was used for statistical analysis with a significance level of 0.05. RESULTS Significantly best target coverage and homogeneity was achieved using VMAT FFF with V95% = (98.7 ± 0.8) % and HI = (8.2 ± 0.9) % for the SIB and V95% = (98.3 ± 0.7) % for the PTV, whereas tVMAT showed significantly lowest doses to the contralateral organs at risk with a Dmean of (0.7 ± 0.1) Gy for the contralateral lung, (1.0 ± 0.2) Gy for the contralateral breast and (1.4 ± 0.2) Gy for the heart. All plans passed the gamma evaluation with a mean passing rate of (99.2 ± 0.8) %. Delivery times were significantly reduced for VMAT and tVMAT but increased for IMRT, when FFF was used. Lowest delivery times were observed for tVMAT FFF with (1:20 ± 0:07) min. CONCLUSION Balancing target coverage, OAR sparing and delivery time, VMAT FFF and tVMAT FFF are considered the preferable of the investigated treatment options in simultaneous integrated boost irradiation of right sided breast cancer for the combination of an Elekta Synergy linac with Agility and the treatment planning system Monaco 5.0.
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Affiliation(s)
- Johannes Maier
- Department of Radiotherapy, Regensburg University Medical Center, Regensburg, Germany
| | - Bernadette Knott
- Department of Radiotherapy, Regensburg University Medical Center, Regensburg, Germany
| | - Manuel Maerz
- Department of Radiotherapy, Regensburg University Medical Center, Regensburg, Germany
| | - Rainer Loeschel
- Ostbayerische Technische Hochschule Regensburg, Faculty of Computer Science and Mathematics, Regensburg, Germany
| | - Oliver Koelbl
- Department of Radiotherapy, Regensburg University Medical Center, Regensburg, Germany
| | - Barbara Dobler
- Department of Radiotherapy, Regensburg University Medical Center, Regensburg, Germany.
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Dobler B, Maier J, Knott B, Maerz M, Loeschel R, Koelbl O. Second Cancer Risk after simultaneous integrated boost radiation therapy of right sided breast cancer with and without flattening filter. Strahlenther Onkol 2016; 192:687-95. [PMID: 27534409 DOI: 10.1007/s00066-016-1025-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Accepted: 07/15/2016] [Indexed: 11/24/2022]
Abstract
BACKGROUND The aim of this study was to investigate if the flattening filter free mode (FFF) of a linear accelerator reduces the excess absolute risk (EAR) for second cancer as compared to the flat beam mode (FF) in simultaneous integrated boost (SIB) radiation therapy of right-sided breast cancer. PATIENTS AND METHODS Six plans were generated treating the whole breast to 50.4 Gy and a SIB volume to 63 Gy on CT data of 10 patients: intensity-modulated radiation therapy (IMRT), volumetric modulated arc therapy (VMAT), and a tangential arc VMAT (tVMAT), each with flattening filter and without. The EAR was calculated for the contralateral breast and the lungs from dose-volume histograms (DVH) based on the linear-exponential, the plateau, and the full mechanistic dose-response model. Peripheral low-dose measurements were performed to compare the EAR in more distant regions as the thyroids and the uterus. RESULTS FFF reduces the EAR significantly in the contralateral and peripheral organs for tVMAT and in the peripheral organs for VMAT. No reduction was found for IMRT. The lowest EAR for the contralateral breast and lung was achieved with tVMAT FFF, reducing the EAR by 25 % and 29 % as compared to tVMAT FF, and by 44 % to 58 % as compared to VMAT and IMRT in both irradiation modes. tVMAT FFF showed also the lowest peripheral dose corresponding to the lowest EAR in the thyroids and the uterus. CONCLUSION The use of FFF mode allows reducing the EAR significantly when tVMAT is used as the treatment technique. When second cancer risk is a major concern, tVMAT FFF is considered the preferred treatment option in SIB irradiation of right-sided breast cancer.
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Affiliation(s)
- Barbara Dobler
- Department of Radiotherapy, Regensburg University Medical Center, 93042, Regensburg, Germany.
| | - Johannes Maier
- Department of Radiotherapy, Regensburg University Medical Center, 93042, Regensburg, Germany
| | - Bernadette Knott
- Department of Radiotherapy, Regensburg University Medical Center, 93042, Regensburg, Germany
| | - Manuel Maerz
- Department of Radiotherapy, Regensburg University Medical Center, 93042, Regensburg, Germany
| | - Rainer Loeschel
- Faculty of Computer Science and Mathematics, Ostbayerische Technische Hochschule Regensburg, Regensburg, Germany
| | - Oliver Koelbl
- Department of Radiotherapy, Regensburg University Medical Center, 93042, Regensburg, Germany
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Stromberger C, Knecht R, Raguse JD, Keilholz U, Tribius S, Busch CJ, Koelbl O, Hautmann M, Schreiber A, Gruen A, Becker ET, Tinhofer I, Budach V. Standard or split TPF induction chemotherapy followed by bioradiation: ICRAT randomized phase II study. J Clin Oncol 2016. [DOI: 10.1200/jco.2016.34.15_suppl.6035] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Carmen Stromberger
- Dpts. for Radiation Oncology, Comprehensive Cancer Center, Charité University Medicine Berlin, Berlin, Germany
| | - Rainald Knecht
- Dpt. of Otorhinolaryngology, University Medical Center Hamburg, Hamburg, Germany
| | - Jan D Raguse
- Clinic for Oral and Maxillofacial Surgery, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Ulrich Keilholz
- Department for Hemato-Oncology, Comprehensive Cancer Center, Charité-University Medicine, Berlin, Germany
| | | | - Chia-Jung Busch
- Dpt. of Otorhinolaryngology, University Medical Center Hamburg, Hamburg, Germany
| | - Oliver Koelbl
- Dpt. for Radiation Oncology, University of Regensburg, Regensburg, Germany
| | - Matthias Hautmann
- University of Regensburg, Department of Radiotherapy, Regensburg, Germany
| | | | - Arne Gruen
- Dpts. for Radiation Oncology, Comprehensive Cancer Center, Charité University Medicine Berlin, Berlin, Germany
| | - Eva-Tessina Becker
- Dpt. for Otorhinolaryngology, Comprehensive Cancer Center, Charité University Medicine Berlin, Berlin, Germany
| | - Inge Tinhofer
- Dept. of Radiooncology and Radiotherapy, Charité Unversity Hospital and German Cancer Research Center Heidelberg (DKFZ)/German Cancer Consortium (DKTK) partner site Berlin, Berlin, Germany
| | - Volker Budach
- Dept. of Radiation Oncology and Radiotherapy, Comprehensive Cancer Center, Charite University Medicine Berlin, Berlin, Germany
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Dietz A, Wichmann G, Flentje M, Hagen R, Koelbl O, Schreiber F, Schilling V, Maschmeyer G, Schroeder U, Sittel C, Lenarz T, Klussmann JP, Guntinas-Lichius O, Rudack C, Foerg T, Westhofen M, Welkoborsky HJ, Esser D, Held S, Keilholz U. Final results of the randomized phase II DeLOS-II trial: Induction chemotherapy (IC) followed by radiotherapy (R) vs. cetuximab (E) plus IC and R for functional larynx preservation in resectable laryngeal and hypopharyngeal cancer (LHSCC). J Clin Oncol 2016. [DOI: 10.1200/jco.2016.34.15_suppl.6025] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
| | - Gunnar Wichmann
- Department of Otolaryngology, Head and Neck Surgery, University Hospital Leipzig, Leipzig, Germany
| | | | - Rudolf Hagen
- ENT Department University Würzburg, Würzburg, Germany
| | - Oliver Koelbl
- Dpt. for Radiation Oncology, University of Regensburg, Regensburg, Germany
| | | | | | | | | | | | | | | | | | | | - Thomas Foerg
- Department Radiation Oncology, Vincentius Clinic, Karlsruhe, Germany
| | | | | | - Dirk Esser
- ENT Department, Helios Clinic, Erfurt, Germany
| | | | - Ulrich Keilholz
- Department for Hemato-Oncology, Comprehensive Cancer Center, Charité-University Medicine, Berlin, Germany
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Maerz M, Mittermair P, Krauss A, Koelbl O, Dobler B. Iterative metal artifact reduction improves dose calculation accuracy. Strahlenther Onkol 2016; 192:403-13. [DOI: 10.1007/s00066-016-0958-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Accepted: 02/03/2016] [Indexed: 11/25/2022]
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30
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Budach V, Keilholz U, Raguse JD, Knecht R, Tribius S, Busch CJ, Koelbl O, Hautmann M, Schreiber A, Gruen A, Becker ET, Tinhofer I, Stromberger C. Comparison of Standard to Split-Dose TPF Induction Chemotherapy followed by Bio-radiation for LASCC of the Head and Neck: Results of the ICRAT randomized Phase II Study. J Clin Oncol 2015. [DOI: 10.1200/jco.2015.33.15_suppl.e17042] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Volker Budach
- Dpts. for Radiation Oncology, Comprehensive Cancer Center, Charite University Medicine Berlin, Berlin, Germany
| | - Ulrich Keilholz
- Dpt.for Hemato-Oncology, Comprehensive Cancer Center, Charité University Medicine Berlin, Berlin, Germany
| | | | - Rainald Knecht
- Dpt. of Otorhinolaryngology, University Medical Center Hamburg, Hamburg, Germany
| | - Silke Tribius
- Dpt. for Radiation Oncology, University Medical Center Hamburg, Hamburg, Germany
| | - Chia-Jung Busch
- Dpt. of Otorhinolaryngology, University Medical Center Hamburg, Hamburg, Germany
| | - Oliver Koelbl
- Dpt. for Radiation Oncology, University of Regensburg, Regensburg, Germany
| | - Matthias Hautmann
- Dpt. for Radiation Oncology, University of Regensburg, Germany, Regensburg, Germany
| | | | - Arne Gruen
- Dpts. for Radiation Oncology, Comprehensive Cancer Center, Charité University Medicine Berlin, Berlin, Germany
| | - Eva-Tessina Becker
- Dpt. for Otorhinolaryngology, Comprehensive Cancer Center, Charité University Medicine Berlin, Berlin, Germany
| | - Inge Tinhofer
- Dpts. for Radiation Oncology, Comprehensive Cancer Center, Charite University Medicine Berlin, Berlin, Germany
| | - Carmen Stromberger
- Dpts. for Radiation Oncology, Comprehensive Cancer Center, Charité University Medicine Berlin, Berlin, Germany
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Dietz A, Flentje M, Hagen R, Bockmuehl U, Koelbl O, Schilling V, Maschmeyer G, Schroeder U, Sittel C, Goerner M, Lenarz T, Klussmann JP, Guntinas-Lichius O, Rudack C, Reinisch S, Foerg T, Westhofen M, Welkoborsky HJ, Esser D, Keilholz U. Induction chemotherapy (IC) docetaxel (T), cisplatin (P), 5-fluorouracil (F) (TPF), or TP followed by concomitant boost radiotherapy (R) with or without cetuximab (E) for functional organ preservation (FOP) of resectable laryngeal and hypopharyngeal cancer (LHSCC): First results of the phase II randomized DeLOS-II study. J Clin Oncol 2014. [DOI: 10.1200/jco.2014.32.15_suppl.6016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
| | | | - Rudolf Hagen
- ENT Department University Würzburg, Würzburg, Germany
| | | | - Oliver Koelbl
- Radiation Oncology University Regensburg, Regensburg, Germany
| | | | | | | | | | - Martin Goerner
- Clinic Hematology Oncology Bielefeld, Bielefeld, Germany
| | | | | | | | | | | | - Thomas Foerg
- Department Radiation Oncology, Vincentius Clinic, Karlsruhe, Germany
| | | | | | - Dirk Esser
- ENT Department, Helios Clinic, Erfurt, Germany
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Haertl PM, Loeschel R, Repp N, Pohl F, Koelbl O, Dobler B. Frameless fractionated stereotactic radiation therapy of intracranial lesions: impact of cone beam CT based setup correction on dose distribution. Radiat Oncol 2013; 8:153. [PMID: 23800172 PMCID: PMC3707816 DOI: 10.1186/1748-717x-8-153] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2012] [Accepted: 05/26/2013] [Indexed: 11/29/2022] Open
Abstract
Background The purpose of this study was to evaluate the impact of Cone Beam CT (CBCT) based setup correction on total dose distributions in fractionated frameless stereotactic radiation therapy of intracranial lesions. Methods Ten patients with intracranial lesions treated with 30 Gy in 6 fractions were included in this study. Treatment planning was performed with Oncentra® for a SynergyS® (Elekta Ltd, Crawley, UK) linear accelerator with XVI® Cone Beam CT, and HexaPOD™ couch top. Patients were immobilized by thermoplastic masks (BrainLab, Reuther). After initial patient setup with respect to lasers, a CBCT study was acquired and registered to the planning CT (PL-CT) study. Patient positioning was corrected according to the correction values (translational, rotational) calculated by the XVI® system. Afterwards a second CBCT study was acquired and registered to the PL-CT to confirm the accuracy of the corrections. An in-house developed software was used for rigid transformation of the PL-CT to the CBCT geometry, and dose calculations for each fraction were performed on the transformed CT. The total dose distribution was achieved by back-transformation and summation of the dose distributions of each fraction. Dose distributions based on PL-CT, CBCT (laser set-up), and final CBCT were compared to assess the influence of setup inaccuracies. Results The mean displacement vector, calculated over all treatments, was reduced from (4.3 ± 1.3) mm for laser based setup to (0.5 ± 0.2) mm if CBCT corrections were applied. The mean rotational errors around the medial-lateral, superior-inferior, anterior-posterior axis were reduced from (−0.1 ± 1.4)°, (0.1 ± 1.2)° and (−0.2 ± 1.0)°, to (0.04 ± 0.4)°, (0.01 ± 0.4)° and (0.02 ± 0.3)°. As a consequence the mean deviation between planned and delivered dose in the planning target volume (PTV) could be reduced from 12.3% to 0.4% for D95 and from 5.9% to 0.1% for Dav. Maximum deviation was reduced from 31.8% to 0.8% for D95, and from 20.4% to 0.1% for Dav. Conclusion Real dose distributions differ substantially from planned dose distributions, if setup is performed according to lasers only. Thermoplasic masks combined with a daily CBCT enabled a sufficient accuracy in dose distribution.
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Hoegele W, Loeschel R, Dobler B, Koelbl O, Beard C, Zygmanski P. Stochastic triangulation for prostate positioning during radiotherapy using short CBCT arcs. Radiother Oncol 2013; 106:241-9. [DOI: 10.1016/j.radonc.2013.01.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2012] [Revised: 01/09/2013] [Accepted: 01/10/2013] [Indexed: 01/22/2023]
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Hoegele W, Zygmanski P, Dobler B, Kroiss M, Koelbl O, Loeschel R. Localization of deformable tumors from short-arc projections using Bayesian estimation. Med Phys 2012; 39:7205-14. [DOI: 10.1118/1.4764483] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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Treutwein M, Hipp M, Koelbl O, Dobler B. Searching standard parameters for volumetric modulated arc therapy (VMAT) of prostate cancer. Radiat Oncol 2012; 7:108. [PMID: 22784505 PMCID: PMC3434122 DOI: 10.1186/1748-717x-7-108] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2011] [Accepted: 02/17/2012] [Indexed: 12/25/2022] Open
Abstract
Background Since December 2009 a new VMAT planning system tool is available in Oncentra® MasterPlan v3.3 (Nucletron B.V.). The purpose of this study was to work out standard parameters for the optimization of prostate cancer. Methods For ten patients with localized prostate cancer plans for simultaneous integrated boost were optimized, varying systematically the number of arcs, collimator angle, the maximum delivery time, and the gantry spacing. Homogeneity in clinical target volume, minimum dose in planning target volume, median dose in the organs at risk, maximum dose in the posterior part of the rectum, and number of monitor units were evaluated using student’s test for statistical analysis. Measurements were performed with a 2D-array, taking the delivery time, and compared to the calculation by the gamma method. Results Plans with collimator 45° were superior to plans with collimator 0°. Single arc resulted in higher minimum dose in the planning target volume, but also higher dose values to the organs at risk, requiring less monitor units per fraction dose than dual arc. Single arc needs a higher value (per arc) for the maximum delivery time parameter than dual arc, but as only one arc is needed, the measured delivery time was shorter and stayed below 2.5 min versus 3 to 5 min. Balancing plan quality, dosimetric results and calculation time, a gantry spacing of 4° led to optimal results. Conclusion A set of parameters has been found which can be used as standard for volumetric modulated arc therapy planning of prostate cancer.
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Affiliation(s)
- Marius Treutwein
- Department of Radiation Oncology, Regensburg University Medical Center, Franz-Josef-Strauss-Allee 11, 93053 Regensburg, Germany.
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36
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Haertl PM, Pohl F, Weidner K, Groeger C, Koelbl O, Dobler B. Treatment of left sided breast cancer for a patient with funnel chest: volumetric-modulated arc therapy vs. 3D-CRT and intensity-modulated radiotherapy. Med Dosim 2012; 38:1-4. [PMID: 22727550 DOI: 10.1016/j.meddos.2012.04.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2011] [Revised: 03/21/2012] [Accepted: 04/13/2012] [Indexed: 12/24/2022]
Abstract
This case study presents a rare case of left-sided breast cancer in a patient with funnel chest, which is a technical challenge for radiation therapy planning. To identify the best treatment technique for this case, 3 techniques were compared: conventional tangential fields (3D conformal radiotherapy [3D-CRT]), intensity-modulated radiotherapy (IMRT), and volumetric-modulated arc therapy (VMAT). The plans were created for a SynergyS® (Elekta, Ltd, Crawley, UK) linear accelerator with a BeamModulator™ head and 6-MV photons. The planning system was Oncentra Masterplan® v3.3 SP1 (Nucletron BV, Veenendal, Netherlands). Calculations were performed with collapsed cone algorithm. Dose prescription was 50.4 Gy to the average of the planning target volume (PTV). PTV coverage and homogeneity was comparable for all techniques. VMAT allowed reducing dose to the ipsilateral organs at risk (OAR) and the contralateral breast compared with IMRT and 3D-CRT: The volume of the left lung receiving 20 Gy was 19.3% for VMAT, 26.1% for IMRT, and 32.4% for 3D-CRT. In the heart, a D(15%) of 9.7 Gy could be achieved with VMAT compared with 14 Gy for IMRT and 46 Gy for 3D-CRT. In the contralateral breast, D(15%) was 6.4 Gy for VMAT, 8.8 Gy for IMRT, and 10.2 Gy for 3D-CRT. In the contralateral lung, however, the lowest dose was achieved with 3D-CRT with D(10%) of 1.7 Gy for 3D-CRT, and 6.7 Gy for both IMRT and VMAT. The lowest number of monitor units (MU) per 1.8-Gy fraction was required by 3D-CRT (192 MU) followed by VMAT (518 MU) and IMRT (727 MU). Treatment time was similar for 3D-CRT (3 min) and VMAT (4 min) but substantially increased for IMRT (13 min). VMAT is considered the best treatment option for the presented case of a patient with funnel chest. It allows reducing dose in most OAR without compromising target coverage, keeping delivery time well below 5 minutes.
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Affiliation(s)
- Petra M Haertl
- Department of Radiotherapy, Regensburg University Medical Center, Regensburg, Germany.
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Hoegele W, Loeschel R, Dobler B, Kroiss M, Koelbl O, Zygmanski P. OC-0404 A BAYESIAN FRAMEWORK FOR MARKER-BASED PATIENT POSITIONING WITH A FEW PROJECTIONS IN VERY SHORT ARCS. Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)70743-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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38
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Moret JA, Loeschel R, Repp N, Koelbl O, Pohl F, Dobler B. EP-1480 IGRT FOR SHORT-TIME RT OF RECTAL CANCER: IMPACT OF SETUP TECHNIQUE ON THE DOSE DISTRIBUTION. Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)71813-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Goetzfried T, Rickhey M, Treutwein M, Koelbl O, Bogner L. Monte Carlo simulations to replace film dosimetry in IMRT verification. Z Med Phys 2012; 21:19-25. [PMID: 20888202 DOI: 10.1016/j.zemedi.2010.05.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2009] [Revised: 04/01/2010] [Accepted: 05/21/2010] [Indexed: 11/25/2022]
Abstract
Patient-specific verification of intensity-modulated radiation therapy (IMRT) plans can be done by dosimetric measurements or by independent dose or monitor unit calculations. The aim of this study was the clinical evaluation of IMRT verification based on a fast Monte Carlo (MC) program with regard to possible benefits compared to commonly used film dosimetry. 25 head-and-neck IMRT plans were recalculated by a pencil beam based treatment planning system (TPS) using an appropriate quality assurance (QA) phantom. All plans were verified both by film and diode dosimetry and compared to MC simulations. The irradiated films, the results of diode measurements and the computed dose distributions were evaluated, and the data were compared on the basis of gamma maps and dose-difference histograms. Average deviations in the high-dose region between diode measurements and point dose calculations performed with the TPS and MC program were 0.7 ± 2.7% and 1.2 ± 3.1%, respectively. For film measurements, the mean gamma values with 3% dose difference and 3mm distance-to-agreement were 0.74 ± 0.28 (TPS as reference) with dose deviations up to 10%. Corresponding values were significantly reduced to 0.34 ± 0.09 for MC dose calculation. The total time needed for both verification procedures is comparable, however, by far less labor intensive in the case of MC simulations. The presented study showed that independent dose calculation verification of IMRT plans with a fast MC program has the potential to eclipse film dosimetry more and more in the near future. Thus, the linac-specific QA part will necessarily become more important. In combination with MC simulations and due to the simple set-up, point-dose measurements for dosimetric plausibility checks are recommended at least in the IMRT introduction phase.
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Affiliation(s)
- Thomas Goetzfried
- Department of Radiotherapy, Regensburg University Medical Center, Regensburg, Germany.
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Spanier G, Pohl F, Giese T, Meier JK, Koelbl O, Reichert TE. Fatal course of tonsillar squamous cell carcinoma associated with Fanconi anaemia: a mini review. J Craniomaxillofac Surg 2011; 40:510-5. [PMID: 21925890 DOI: 10.1016/j.jcms.2011.08.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2011] [Revised: 08/30/2011] [Accepted: 08/31/2011] [Indexed: 10/17/2022] Open
Abstract
Fanconi anaemia (FA) is a rare genetic syndrome characterized by progressive pancytopenia, variably expressed congenital abnormalities and susceptibility, amongst others, to solid tumours. Early detection by oral health professionals of a pathological process can have a critical impact on the clinical course of that condition. In this paper we report the case of a 27-year-old male patient with tonsillar squamous cell carcinoma (cT4 cN2b cM0 G3) associated with FA. Due to the locally advanced growth of the tumour and the poor systemic condition we ruled out primary surgery and settled for primary radio- and chemotherapy. Given the poor clinical course a focus on the aspect of secondary prevention is reasonable, given that it is known that patients with FA are at higher risk of developing malignancy than the general population. A multi-disciplinary approach is necessary in which the prevention of, surveillance for and the treatment of malignancies are important aspects of management and may improve disease-free survival.
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Affiliation(s)
- Gerrit Spanier
- Department of Cranio-Maxillo-Facial Surgery, University Medical School Regensburg, Franz-Josef-Strauss Allee 11, D-93053 Regensburg, Germany.
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Haertl P, Repp N, Loeschel R, Koelbl O, Dobler B. 1197 poster IMPACT OF CONE BEAM CT BASED IGRT ON DOSE DISTRIBUTION IN CRANIAL RADIATION THERAPY. Radiother Oncol 2011. [DOI: 10.1016/s0167-8140(11)71319-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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42
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Dobler B, Groeger C, Treutwein M, Alvarez-Moret J, Goetzfried T, Weidner K, Haertl P, Koelbl O. Commissioning of volumetric modulated arc therapy (VMAT) in a dual-vendor environment. Radiother Oncol 2011; 99:86-9. [PMID: 21458090 DOI: 10.1016/j.radonc.2011.01.024] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2010] [Revised: 01/27/2011] [Accepted: 01/31/2011] [Indexed: 11/27/2022]
Affiliation(s)
- Barbara Dobler
- Department of Radiotherapy, Regensburg University Medical Center, Regensburg, Germany.
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Hoegele W, Loeschel R, Dobler B, Hesser J, Koelbl O, Zygmanski P. Stochastic formulation of patient positioning using linac-mounted cone beam imaging with prior knowledge. Med Phys 2011; 38:668-81. [DOI: 10.1118/1.3532959] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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44
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Eigentler TK, Figl A, Krex D, Mohr P, Mauch C, Rass K, Bostroem A, Heese O, Koelbl O, Garbe C, Schadendorf D. Number of metastases, serum lactate dehydrogenase level, and type of treatment are prognostic factors in patients with brain metastases of malignant melanoma. Cancer 2010; 117:1697-703. [DOI: 10.1002/cncr.25631] [Citation(s) in RCA: 104] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2010] [Revised: 07/19/2010] [Accepted: 07/19/2010] [Indexed: 11/06/2022]
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Dobler B, Weidner K, Koelbl O. Application of volumetric modulated arc therapy (VMAT) in a dual-vendor environment. Radiat Oncol 2010; 5:95. [PMID: 20973977 PMCID: PMC2987940 DOI: 10.1186/1748-717x-5-95] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2010] [Accepted: 10/25/2010] [Indexed: 11/18/2022] Open
Abstract
Background and Purpose The purpose of this study was to assess plan quality and treatment time achievable with the new VMAT optimization tool implemented in the treatment planning system Oncentra MasterPlan® as compared to IMRT for Elekta SynergyS® linear accelerators. Materials and methods VMAT was implemented on a SynergyS® linear accelerator (Elekta Ltd., Crawley, UK) with Mosaiq® record and verify system (IMPAC Medical Systems, Sunnyvale, CA) and the treatment planning system Oncentra MasterPlan® (Nucletron BV, Veenendaal, the Netherlands). VMAT planning was conducted for three typical target types of prostate cancer, hypopharynx/larynx cancer and vertebral metastases, and compared to standard IMRT with respect to plan quality, number of monitor units (MU), and treatment time. Results For prostate cancer and vertebral metastases single arc VMAT led to similar plan quality as compared to IMRT. For treatment of the hypopharynx/larynx cancer, a second arc was necessary to achieve sufficient plan quality. Treatment time was reduced in all cases to 35% to 43% as compared to IMRT. Times required for optimization and dose calculation, however, increased by a factor of 5.0 to 6.8. Conclusion Similar or improved plan quality can be achieved with VMAT as compared to IMRT at reduced treatment times but increased calculation times.
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Affiliation(s)
- Barbara Dobler
- Department of Radiotherapy, Regensburg University Medical Center, D-93042 Regensburg, Germany.
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Rickhey M, Morávek Z, Eilles C, Koelbl O, Bogner L. 18F-FET-PET-based dose painting by numbers with protons. Strahlenther Onkol 2010; 186:320-6. [PMID: 20559789 DOI: 10.1007/s00066-010-2014-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2009] [Accepted: 03/12/2010] [Indexed: 11/25/2022]
Abstract
PURPOSE To investigate the potential of (18)F-fluoroethyltyrosine-positron emission tomography-((18)F-FET-PET-)based dose painting by numbers with protons. MATERIAL AND METHODS Due to its high specificity to brain tumor cells, FET has a high potential to serve as a target for dose painting by numbers. Biological image-based dose painting might lead to an inhomogeneous dose prescription. For precise treatment planning of such a prescribed dose, an intensity-modulated radiotherapy (IMRT) algorithm including a Monte Carlo dose-calculation algorithm for spot-scanning protons was used. A linear tracer uptake to dose model was used to derive a dose prescription from the (18)F-FET-PET. As a first investigation, a modified modulation transfer function (MTF) of protons was evaluated and compared to the MTF of photons. In a clinically adapted planning study, the feasibility of (18)F-FET-PET-based dose painting with protons was demonstrated using three patients with glioblastome multiforme. The resulting dose distributions were evaluated by means of dose-difference and dose-volume histograms and compared to IMRT data. RESULTS The MTF for protons was constantly above that for photons. The standard deviations of the dose differences between the prescribed and the optimized dose were smaller in case of protons compared to photons. Furthermore, the escalation study showed that the doses within the subvolumes identified by biological imaging techniques could be escalated remarkably while the dose within the organs at risk was kept at a constant level. CONCLUSION The presented investigation fortifies the feasibility of (18)F-FET-PET-based dose painting with protons.
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Affiliation(s)
- Mark Rickhey
- Department of Radiotherapy, University of Regensburg, Regensburg, Germany.
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Pohl F, Grosse J, Grimm D, Brockhoff G, Westphal K, Moosbauer J, Koelbl O, Infanger M, Eilles C, Schoenberger J. Changes of apoptosis, p53, and bcl-2 by irradiation in poorly differentiated thyroid carcinoma cell lines: a prognostic marker for the prospect of therapeutic success? Thyroid 2010; 20:159-66. [PMID: 20151823 DOI: 10.1089/thy.2008.0345] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
BACKGROUND Poorly differentiated thyroid carcinoma (PDTC) has an unfavorable prognosis. Surgical management is the principal treatment approach. In addition, radioiodine treatment and external beam radiotherapy (EBRT) are given to reduce the risk of local relapse. Despite aggressive therapy, the response to treatment tends to become increasingly poorer over time. The objective of this study was to investigate the induction of apoptosis by EBRT as a function of p53 and bcl-2 protein levels in PDTC. The predictive value of these molecules with respect to treatment efficacy was evaluated. MATERIALS AND METHODS Two different cell lines of PDTC (FTC-133 and ML-1) were irradiated with a dose of 30 Gy. Apoptotic cells were quantified using terminal deoxynucleotidyltransferase-dUTP nick-end labeling staining without irradiation, 48 and 96 hours after irradiation. The protein levels of p53 and bcl-2 were measured simultaneously using flow cytometry and western blotting. The cell cycle distribution was determined. RESULTS Untreated FTC-133 cells showed a high rate of apoptosis, a high protein level of p53, and a low bcl-2 protein level. Forty-eight hours after irradiation, a slight reduction in apoptotic cells was observed in conjunction with an increase in bcl-2 and p53 protein levels. The slightly reduced fraction of apoptotic cells remained at the same level up to 96 hours after irradiation, whereas the p53 protein level was further downregulated. The cell cycle distribution showed a significant G2/M arrest after 48 hours and recovery 96 hours after irradiation. ML-1 cells did not show any detectable p53 levels and revealed a low rate of apoptosis which significantly increased 48 hours after irradiation. Ninety-six hours after irradiation, a decrease in apoptosis was detectable. The protein level of bcl-2 increased significantly within 48 hours and decreased 96 hours after irradiation. The cell cycle distribution showed a G2/M arrest after 48 hours without a recovery 96 hours after irradiation. CONCLUSIONS The p53 and bcl-2 expression profiles and the observed apoptotic rates of FTC-133 and ML-1 under irradiation are consistent with a more aggressive FTC-133 phenotype. Alterations in p53- and bcl-2 protein levels yield predictive information for EBRT efficacy.
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Affiliation(s)
- Fabian Pohl
- Department of Radio-Oncology, University of Regensburg, Regensburg, Germany.
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Dobler B, Streck N, Klein E, Loeschel R, Haertl P, Koelbl O. Hybrid plan verification for intensity-modulated radiation therapy (IMRT) using the 2D ionization chamber array I'mRT MatriXX--a feasibility study. Phys Med Biol 2009; 55:N39-55. [PMID: 20023326 DOI: 10.1088/0031-9155/55/2/n02] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The 2D ionization chamber array I'mRT MatriXX (IBA, Schwarzenbruck, Germany) has been developed for absolute 2D dosimetry and verification of intensity-modulated radiation therapy (IMRT) for perpendicular beam incidence. The aim of this study is to evaluate the applicability of I'mRT MatriXX for oblique beam incidence and hybrid plan verification of IMRT with original gantry angles. For the assessment of angular dependence, open fields with gantry angles in steps of 10 degrees were calculated on a CT scan of I'mRT MatriXX. For hybrid plan verification, 17 clinical IMRT plans and one rotational plan were used. Calculations were performed with pencil beam (PB), collapsed cone (CC) and Monte Carlo (MC) methods, which had been previously validated. Measurements were conducted on an Elekta SynergyS linear accelerator. To assess the potential and limitations of the system, gamma evaluation was performed with different dose tolerances and distances to agreement. Hybrid plan verification passed the gamma test with 4% dose tolerance and 3 mm distance to agreement in all cases, in 82-88% of the cases for tolerances of 3%/3 mm, and in 59-76% of the cases if 3%/2 mm were used. Separate evaluation of the low dose and high dose regions showed that I'mRT MatriXX can be used for hybrid plan verification of IMRT plans within 3% dose tolerance and 3 mm distance to agreement with a relaxed dose tolerance of 4% in the low dose region outside the multileaf collimator (MLC).
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Affiliation(s)
- Barbara Dobler
- Department of Radiotherapy, Regensburg University Medical Center, Regensburg, Germany.
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Dobler B, Koelbl O, Bogner L, Pohl F. Direct machine parameter optimization for intensity modulated radiation therapy (IMRT) of oropharyngeal cancer--a planning study. J Appl Clin Med Phys 2009; 10:4-15. [PMID: 19918235 PMCID: PMC5720568 DOI: 10.1120/jacmp.v10i4.3066] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2009] [Revised: 05/05/2009] [Accepted: 05/14/2009] [Indexed: 11/23/2022] Open
Abstract
The purpose of the study was to investigate the potential of direct machine parameter optimization (DMPO) to achieve parotid sparing without compromising target coverage in IMRT of oropharyngeal cancer as compared to fluence modulation with subsequent leaf sequencing (IM) and forward planned two‐step arc therapy (IMAT). IMRT plans were generated for 10 oropharyngeal cancer patients using DMPO and IM. The resulting dose volume histograms (DVH) were evaluated with regard to compliance with the dose volume objectives (DVO) and plan quality. DMPO met the DVO for the targets better than IM, but violated the DVO to the parotids in some cases. DMPO provided better target coverage and dose homogeneity than IM and was comparable to IMAT. Dose to the parotids (23Gy) was significantly lower than for IMAT (48Gy), but somewhat higher than for IM (20Gy). Parotid sparing with IM was, however, only achieved at the cost of target coverage and homogeneity. DMPO allows achieving parotid sparing in the treatment of oropharyngeal cancer without compromising target coverage and dose homogeneity in the target as compared to two‐step IMAT. Better overall plan quality can be delivered with less monitor units than with IM. PACS number: 87.50.Gi
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Affiliation(s)
- Barbara Dobler
- Department of Radiotherapy, Regensburg University Medical Center, Regensburg, Germany
| | - Oliver Koelbl
- Department of Radiotherapy, Regensburg University Medical Center, Regensburg, Germany
| | - Ludwig Bogner
- Department of Radiotherapy, Regensburg University Medical Center, Regensburg, Germany
| | - Fabian Pohl
- Department of Radiotherapy, Regensburg University Medical Center, Regensburg, Germany
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Dobler B, Klein E, Streck N, Loeschel R, Feist G, Koelbl O. INFLUENCE OF THE MLC MODEL IMPLEMENTED IN ONCENTRA® MASTERPLAN ON THE ACCURACY OF IMRT PLANNING FOR AN ELEKTA BEAM MODULATOR™. Radiother Oncol 2009. [DOI: 10.1016/s0167-8140(12)73160-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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