Our Doctors

Amethyst centers can count upon the expertise of more than 60 doctors specialised in the treatment of cancer.
Their combined knowledge makes Amethyst one of the main radiotherapy networks in Europe.

Following you will find the biographies of the main doctors that staff our centers across the continent.

  • Dr.
    Renata Zahu

    Cluj-Napoca Amethyst Center

    Dr. Renata Zahu is a primary radiotherapy physician and is part of the Amethyst team since 2014.

    Dr. Zahu attended specialization studies at the Oncological Institute “Prof. Dr. Ion Chiricuţă” in Cluj Napoca, and trainings in the UK, at the Royal Derby Hospital and the Royal Marsden Hospital in London.

    She worked at the Oncology Center in Oradea. She has attended numerous courses in the country and abroad on modern radiotherapy technologies.

    She is a member of ESTRO (European Society of Radiation Oncology) and SRROM (Romanian Society of Radiotherapy and Medical Oncology).

    Topics of medical interest include malignant tumors of the ENT sphere, cerebral and pulmonary tumors and sarcoma.

    At the Amethyst Clinic she is involved in imaging-guided radiotherapy (IGRT) and is a clinical instructor for radiotherapy technicians.

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  • Dr.
    Kacso Gabriel

    Cluj-Napoca Amethyst Center

    Dr. Gabriel Kacsó is a primary physician for Radiotherapy and Medical Oncology, coordinating the medical team at the Amethyst Cluj Radiotherapy Center since its opening in October 2014.

    From 1994 to 2014 he was a physician within the Radiotherapy and later in the Brachytherapy Departments of the Cluj Oncology Institute.

    He attended internships in Paris, Nice and Vienna. He is a University Lecturer at “Iuliu Haţieganu” University of Medicine and Pharmacy, Department of Oncology, being the coordinator of the Oncology Scientific Student Circle.

    He is author and co-author to over 50 scientific articles, over 15 courses and university and postgraduate textbooks, including 5 specialized books.

    Invited as a lecturer at numerous national and international conferences, he is a member of Romanian Radiotherapy/Oncology Societies (SRROM), and of similar Balkan (BUON), European (ESTRO) and American (ASTRO) societies.

    His areas of special interest are gynecological, mammary, digestive, and otolaryngologic oncology and brachytherapy.

    With the Amethyst clinic, as its medical director, his priority is to ensure optimal oncology treatment for every patient.

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  • Dr.
    Gabriel Rîcu

    Bucharest Amethyst Center

    Dr. Gabriel Rîcu, a radiotherapy specialist, is a member of the European Society of Radiotherapy and Oncology (ESTRO), a member of the American Society for Radiotherapy and Oncology (ASTRO), a member of the Romanian Society for Radiotherapy and Oncology.

    Since 2006, Dr. Rîcu has worked as a radiotherapist in the Radiotherapy Department of the Bucharest Oncological Institute and the Radiotherapy Department of the Central Military Emergency University Hospital “Dr. Carol Davila”, gaining experience in performing and applying treatment plans.

    Dr. Rîcu attended radiotherapy courses organized by the Bucharest Oncology Institute, the European Society of Radiotherapy and Oncology (ESTRO), the Romanian Society for Radiotherapy and Oncology Cluj, as well as a training course at the Radiotherapy Center Claude Bernard in Metz, France where he has deepened his knowledge about modern IMRT-VMAT radiotherapy techniques.

    Dr. Rîcu is a collaborator of the “Oncologic Patient Guide” alongside radiotherapy and oncology specialists in Romania.

    Dr. Gabriel Rîcu participated and presented at the National Radiotherapy and Oncology Conferences articles about concurrent radio-chemotherapy in oropharyngeal cancer, brachytherapy, adjuvant radiotherapy in endometrial cancer and modern IMRT-VMAT radiotherapy techniques.

    At the Amethyst Radiotherapy Center in Bucharest, Dr. Gabriel Rîcu is part of the Oncological Commission, participates in establishing and implementing treatment plans, offering radiotherapy medical services at the highest world standards, using the IMRT-VMAT technique.

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  • Dr.
    Ion-Christian Chiricuță

    Bucharest Amethyst Center

    With extensive experience and international reputation in radiotherapy, Prof. Dr. Ion-Christian Chiricuţă has dedicated his entire career to treating cancer patients, both through medical practice and through his scientific work.

    in 1978, Prof. Dr. Chiricuţă obtained the Doctor of Physics degree at Babes-Bolyai University and the PhD degree at the Institute of Medicine and Pharmacy Cluj. He completed his residency in radiotherapy at Colţea Hospital in Bucharest.

    Since 1986 Prof. Dr. Chiricuţă has worked in Germany as a resident in the Marienhospital – Herne Hospital (Herze University Hospital) radiotherapy department (Bochum University).

    From 1988 until 1995, Prof. Dr. Chiricuţă worked at the Radiotherapy Clinic of the University of Wuerzburg and since 1991 Prof. Dr. Chiricuţă is a radiotherapy specialist.

    In 1996, Prof. Dr. Chiricuţă was appointed Chief Medical Officer and Director of the Oncological Radiotherapy Institute at St. Vincenz of Limburg, where he was active until 2010. In the same year, Prof. Dr. Chiricuţă obtained his PhD in medicine at the University of Wuerzburg and in 2002 he received the title of Professor at the University of Wuerzburg.

    Currently, Prof. Dr. Chiricuţă collaborates with the University of Medicine and Pharmacy Carol Davila, where he teaches “Medical Imaging, Ionizing Radiation in Diagnosis and Treatment. Clinical Radiobiology”  within the Master of Biophysics and Cell Biotechnology, which involves the training of students in modern radiotherapy equipment and the practical implementation of external irradiation plans.

    Prof. Dr. Ion-Christian Chiricuţă is the author of 3 books on oncology and radiotherapy from 2001-2004, also co-author of four other such books and the author of over 40 articles in specialized magazines and publications.

    Prof. Dr. Chiricuţă has often returned in the country for conferences, congresses or trainings to share part of his experience and thus to contribute to the evolution of local radiotherapy.

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  • Dr.
    Marcin Hetnał

    Kraków Amethyst Center

    Dr. Marcin Hetnał is the Medical Director of Amethyst Polska. Dr Hetnał is a doctor with specialisation in oncological radiotherapy. In 2001-2013, he worked at the Oncology Centre in Kraków as a research assistant and then assistant professor (adiunkt). In 2006, he qualified as a medical doctor at the Collegium Medicum, Jagiellonian University. He held his scientific internships at the Institute of Oncology in Gliwice and the Radio-oncology Clinic in Dresden.
    Dr Hetnał has authored 23 publications and 3 chapters in specialist books, and has delivered 44 presentations at scientific conferences.

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  • Dr.
    Marta Urbańska – Gąsiorowska

    Kraków Amethyst Center

    Dr. Marta Urbańska – Gąsiorowska is the Deputy Medical Doctor at the Kraków Amethyst Radiotherapy Centre. She is an oncology doctor and specialist in oncological radiotherapy with more than 20 years of professional experience. She is a graduate of the Medical Faculty, Collegium Medicum, Jagiellonian University. She did an internship at the Haematology and Oncology Clinic in Krankenhaus Nordwest in Frankfurt, Germany.
    She is co-author of five scientific publications and a Member of the ESTRO (European Society for Radiotherapy & Oncology) and the Polish Society for Oncological Radiotherapy.

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  • Dr.
    Giuseppe Giovinazzo

    Amethyst Rome

    Dr. Giuseppe Giovinazzo is the Clinical Director of Amethyst Rome Cancer Care Center. Dr. Giovinazzo graduated from medical school from the prestigious Normale University in Pisa. He worked as a Radiation Oncologist since 1991, first at Santa Maria Goretti Hospital in Latina and then -from 1998 to 2016 – at the National Italian Institute for Cancer Regina Elena. Dr. Giovinazzo has expertise in the management of solid tumors with Radiotherapy, chemo and Hormonal therapy, as well as being well versed in using all the most modern radiotherapy techniques, such as SRT, SBRT, VMAT, IGRT, IMRT, 3DCRT & Gating.

    Dr. Giovinazzo is also very active in research, with more than 40 pubblications active under his name.

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