Πλοήγηση ανά Θέμα "radiation dose"

AMBIENT DOSE EQUIVALENT RECEIVED at 15 MV LINAC ENVIRONMENTS DUE to PHOTONEUTRONS CONTAMINATION

Vagena E., Katsaras P., Theodorou K., Stoulos S. (2018)

Mapping of the photoneutron spectrum and flux performed at several positions over the treatment table of a 15 MV medical linac. Neutron activation technique has been applied to obtain the neutron spectra in the mixed I3 ...

Breast radiotherapy and early adverse cardiac effects. The role of serum biomarkers and strain echocardiography

Gkantaifi A., Papadopoulos C., Spyropoulou D., Toumpourleka M., Iliadis G., Kardamakis D., Nikolaou M., Tsoukalas N., Kyrgias G., Tolia M. (2019)

Breast cancer radiotherapy has a clear benefit for both long-term survival and local recurrence rate. However, there is still much concern about the early radiation-induced heart toxicity. This article aimed to clarify the ...

Could X-ray microbeams inhibit angioplasty-induced restenosis in the rat carotid artery?

Dilmanian, F. A.; Kalef-Ezra, J.; Petersen, M. J.; Bozios, G.; Vosswinkel, J.; Giron, F.; Ren, B.; Yakupov, R.; Antonakopoulos, G. (2003)

Background: Parallel, thin (<100 μm) planes of synchrotron-generated X rays, have been shown to spare normal tissues and preferentially damage tumors in animal models. The aim of the present study was to assess the effect ...

High resolution computed tomography findings on the lung of early breast-cancer patients treated by postoperative breast irradiation with a hypofractionated radiotherapy schedule

Plataniotis, G. A.; Theofanopoulou, M. E.; Sotiriadou, K.; Vlychou, M.; Fountoulis, G. A.; Fezoulidis, J. (2005)

BACKGROUND: Hypofractionated breast radiotherapy (RT), although convenient for patients and health care systems, could have a negative impact on normal tissues such as lung. AIM: To evaluate radiation-induced lung toxicity ...

An inhomogeneity correction algorithm for irregular fields of high-energy photon beams based on Clarkson integration and the 3D beam subtraction method

Stathakis, S.; Kappas, C.; Theodorou, K.; Papanikolaou, N.; Rosenwald, J. C. (2006)

A number of treatment-planning systems still use conventional correction methods for body inhomogeneities. Most of these methods (power law method, tissue-air ratio (TAR), etc.) consider only on-axis points, rectangular ...

Intraoperative radiation therapy (IORT) in head and neck cancer: A systematic review

Kyrgias G., Hajiioannou J., Tolia M., Kouloulias V., Lachanas V., Skoulakis C., Skarlatos I., Rapidis A., Bizakis I. (2016)

Background: Multimodality therapy constitutes the standard treatment of advanced and recurrent head and neck cancer. Since locoregional recurrence comprises a major obstacle in attaining cure, the role of intraoperative ...

Low-dose radiation cancer risk hypothesis may lead to ‘radiophobia’-driven imaging avoidance?

Angelidis G., Tsougos I., Valotassiou V., Georgoulias P. (2020)

[No abstract available]

Melanoma: The Radiotherapeutic point of view; review of the current literature

Zygogianni, A.; Kyrgias, G.; Kouvaris, J.; Mystakidou, K.; Gogas, H.; Kouloulias, V. (2011)

Surgery remains the mainstay of melanoma therapy at all sites. Melanoma is widely believed to be a radioresistant tumor, a misconception that has historically led to the limited use of RT for its treatment. We searched ...

Oligometastasis and local ablation in the era of systemic targeted and immunotherapy

Mazzola R., Jereczek-Fossa B.A., Franceschini D., Tubin S., Filippi A.R., Tolia M., Lancia A., Minniti G., Corradini S., Arcangeli S., Scorsetti M., Alongi F. (2020)

Background: During these last years, new agents have dramatically improved the survival of the metastatic patients. Oligometastases represent a continuous field of interest in which the integration of metastases-directed ...

Organs dosimetry in targeted radionuclide therapy

Alnaaimi M., Sulieman A., Alkhorayef M., Salah H., Alduaij M., Algaily M., Alomair O., Alashban Y., Almohammad H.I., Bradley D., Kappas C. (2021)

The objective of this study is to assess the patients' effective and organ dose during theranostic applications in Kuwait. In total, eighteen adults' patients were conducted nuclear medicine procedures with 177Lu Dotatate ...

Positron emission tomography after response to rituximab-CHOP in primary mediastinal large B-cell lymphoma: impact on outcomes and radiotherapy strategies

Vassilakopoulos T.P., Papageorgiou S.G., Angelopoulou M.K., Chatziioannou S., Prassopoulos V., Karakatsanis S., Arapaki M., Mellios Z., Sachanas S., Kalpadakis C., Katodritou E., Leonidopoulou T., Kotsianidis I., Hatzimichael E., Kotsopoulou M., Dimou M., Variamis E., Boutsis D., Terpos E., Michali E., Karianakis G., Tsirkinidis P., Vadikolia C., Poziopoulos C., Pigaditou A., Vrakidou E., Siakantaris M.P., Kyrtsonis M.-C., Symeonidis A., Anargyrou K., Papaioannou M., Chatziharissi E., Vervessou E., Tsirogianni M., Palassopoulou M., Gainaru G., Mainta C., Tsirigotis P., Assimakopoulou T., Konstantinidou P., Papadaki H., Dimopoulos M.-A., Pappa V., Karmiris T., Roussou P., Datseris I., Panayiotidis P., Konstantopoulos K., Pangalis G.A., Rondogianni P. (2021)

End-of-treatment (EoT) PET/CT is used as a guide to omit radiotherapy (RT) patients with primary mediastinal large B-cell lymphoma (PMBCL). We present the mature and extended results of a retrospective study evaluating the ...

Primary extramammary invasive Paget's vulvar disease: What is the standard, what are the challenges and what is the future for radiotherapy?

Tolia M., Tsoukalas N., Sofoudis C., Giaginis C., Spyropoulou D., Kardamakis D., Kouloulias V., Kyrgias G. (2016)

Background: Primary invasive Extramammary Paget's vulvar disease is a rare tumor that is challenging to control. Wide surgical excision represents the standard treatment approach for Primary invasive Extramammary Paget's ...

Prostate cancer: ESMO consensus conference guidelines 2012

Horwich, A.; Hugosson, J.; de reijke, T.; Wiegel, T.; Fizazi, K.; Kataja, V.; Parker, C.; Bellmunt, J.; Berthold, D.; Bill-axelson, A.; Carlsson, S.; Daugaard, G.; De meerleer, G.; De reijke, T.; Dearnaley, D.; Fonteyne, V.; Gillessen, S.; Heinrich, D.; Kwiatkowski, M.; Nilsson, S.; Padhani, A.; Papandreou, C.; Roobol, M.; Sella, A.; Valdagni, R.; Van der kwast, T.; Verhagen, P. (2013)

The first ESMO Consensus Conference on prostate cancer was held in Zurich, Switzerland, on 17-19 November 2011, with the participation of a multidisciplinary panel of leading professionals including experts in methodological ...

Radiotherapy of early breast cancer in scleroderma patients: Our experience with four cases and a short review of the literature

Kyrgias, G.; Theodorou, K.; Zygogianni, A.; Tsanadis, K.; Zervoudis, S.; Tzitzikas, J.; Koukourakis, M. (2012)

Purpose: Connective vascular diseases (CVD), including scleroderma, are reported to represent for some researchers a relative contraindication and for others absolute contraindication for radiotherapy. The purpose of our ...

Short-course hypofractionated radiochemotherapy for unresectable locally advanced cancer of the base of tongue: Palliation only? A case report and short review of the literature

Kalogeridi, M. A.; Kouloulias, V.; Zygogianni, A.; Kyrgias, G. (2014)

We present a case of unresectable cancer of the base of tongue treated with hypofractionated 3D conformal radiotherapy and concomitant chemotherapy. Based on the excellent tumour response in this radiotherapy regimen and ...

Treatment of lung cancer

Rapti, A.; Kerenidi, T.; Zarogoulidis, K. (2012)

λ-Eye: A high-sensitivity γ imaging probe for axillary sentinel lymph node mapping

Georgiou M., Loudos G., Fysikopoulos E., Lamprou E., Mikropoulos K., Shegani A., Georgoulias P. (2016)

Objective The aim of this study is the construction and performance evaluation of γ-eye, a γ imaging probe, optimized in terms of sensitivity for sentinel lymph node mapping. The optimization of the probe is based on ...