Search Results - "Tsalafoutas, I."

Evaluation of image quality and patient exposure in fluoroscopy using a phantom: Is there any clinical relevance? by Tsalafoutas, I.A., Tsapaki, V., Triantopoulou, I.

“…•Modern X-ray systems have numerous X-ray preset protocols; some are a “black box”.•X-ray system manufacturers offer more radiation optimization tools than in…”
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PATIENT DOSES IN WHOLE-BODY PET/CT EXAMINATIONS IN THE LARGEST TERTIARY HOSPITAL IN GREECE by Tzampazidou, E, Fotina, A A, Chatonidis, V, Tsalafoutas, I A, Datseris, I E, Samartzis, A

“…Abstract The purpose of this study was to determine the patient radiation dose in combined whole-body positron emission tomography/computed tomography (PET/CT)…”
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A method for calculating the dose length product from CT DICOM images by TSALAFOUTAS, I. A, METALLIDIS, S. I

“…The dosimetric calculations in CT examinations are currently based on two quantities: the volume weighted CT dose index (CTDI(vol)) and the dose-length product…”
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The potential role of brachytherapy in the irradiation of patients with lung cancer: a systematic review by Youroukou, A., Gkiozos, I., Kalaitzi, Z., Tsalafoutas, I., Papalla, K., Charpidou, A., Kouloulias, V.

“…To review the use of brachytherapy as an adjuvant therapy to reduce recurrences after sublobar resections and as a palliation to patients with inoperable…”
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The impact of image processing algorithms on digital radiography of patients with metalic hip implants by Tsalafoutas, I.A., Kasviki, K., Samartzis, A., Trimmis, K., Gkeli, M.G.

“…•Image processing of digital radiographs aims to enhance the visibility of the anatomic areas of interest.•Image processing algorithms may adversely affect…”
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THE IMPACT OF X-RAY UNIT TYPE USED FOR ENDOSCOPIC RETROGRADE CHOLANGIOPANCREATOGRAPHY PROCEDURES ON PATIENT DOSES by Tsapaki, V, Paraskeva, K D, Tsalafoutas, I A, Paspatis, G, Scotiniotis, H, Georgopoulos, P, Finou, P, Karagianis, J A

“…To investigate whether the X-ray unit type used for interventional endoscopic retrograde cholangiopancreatography (ERCP) procedures may affect patient…”
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Linac beam data measurement using a detector array by Birmpakos, P, Kourinou, K, Georgolopoulou, P, Tsalafoutas, I

“…Introduction As new treatment advances are implemented in a radiotherapy department, the QA workload increases requiring more resources. Unplanned maintenance…”
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Large sample neutron activation analysis of irregular-shaped pottery artifacts by Vasilopoulou, T., Stamatelatos, I. E., Montoya, E. H., Bedregal, P. S., Tsalafoutas, I., Bode, P.

“…The large sample neutron activation analysis (LSNAA) method developed at NCSR “Demokritos” for large and irregular-shaped objects was applied for the analysis…”
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Patient radiation doses in various fluoroscopically guided orthopaedic procedures by Tsapaki, V, Tsalafoutas, I A, Fagkrezos, D, Lazaretos, I, Nikolaou, V S, Efstathopoulos, N

“…All orthopaedic fluoroscopic procedures performed using C-arm guidance were monitored for 1 y. The type of procedure, fluoroscopy time (T), kerma-area product…”
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Dual-energy contrast-enhanced digital mammography: Glandular dose estimation using a Monte Carlo code and voxel phantom by Tzamicha, E, Yakoumakis, E, Tsalafoutas, I.A, Dimitriadis, A, Georgiou, E, Tsapaki, V, Chalazonitis, A

“…Abstract Purpose To estimate the mean glandular dose of contrast enhanced digital mammography, using the EGSnrc Monte Carlo code and female adult voxel…”
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Measuring skin dose in CT examinations under complex geometries: Instruments, methods and considerations by Tsalafoutas, I.A, Epistatou, A, Nikoletopoulos, S, Tsapaki, V

“…Highlights • Skin dose can be high in CT procedures where multiple scans are performed. • Skin dose within gantry is gradually reduced when moving away from…”
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PO-386 ENDOBRONCHIAL BRACHYTHERAPYAS ADJUVANT TREATMENTIN PRIMARY BRONCHIAL N.S.C.L.C TUMORS by Papalla, K, Polizoi, B, Tsalafoutas, I, Bisirtzoglou, D, Zettos, A, Anastasakos, B, Politis, G, Katsilieris, I

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Excessive leakage radiation measured on two mobile X-ray units due to the methodology used by the manufacturer to calculate and specify the required tube shielding by TSALAFOUTAS, I. A

“…During the quality control (QC) procedure of a new mobile X-ray unit, it was revealed that the leakage radiation was well in excess of the current limit of 1…”
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Radiation doses to patients undergoing standard radiographic examinations: a comparison between two methods by TSAPAKI, V, TSALAFOUTAS, I. A, CHINOFOTI, I, KARAGEORGI, A, CARINOU, E, KAMENOPOULOU, V, YAKOUMAKIS, E. N, KOULENTIANOS, E. D

“…The objective of the study was to derive a mathematical method for calculating the entrance surface dose (ESD) from exposure factors for all tube potentials…”
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Radiation dose in repeated CT guided radiofrequency ablations by Tsapaki, V, Tsalafoutas, I.A, Triantopoulou, Ch, Kolliakou, E, Maniatis, P, Papailiou, J

“…Abstract Objective To calculate the cumulative effective and skin doses in patients that underwent repeated CT guided radiofrequency ablations (RFA). Materials…”
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Exposure range limits of three intraoral image receptors for various tube potential, tube current and exposure time settings by Katsoni, E, Tsalafoutas, I, Gritzalis, P, Stefanou, E, Georgiou, E, Yakoumakis, E

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A COMPREHENSIVE METHOD FOR CALCULATING SHIELDING REQUIREMENTS FOR THE IMAGING ROOM OF PET/CT INSTALLATIONS by Tsalafoutas, I., Samartzis, A.

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O.4.6 - A COMPREHENSIVE METHOD FOR CALCULATING SHIELDING REQUIREMENTS FOR THE IMAGING ROOM OF PET/CT INSTALLATIONS by Tsalafoutas, I., Samartzis, A.

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Analysis of radiological examination request forms in conjunction with justification of X-ray exposures by Triantopoulou, Ch, Tsalafoutas, I., Maniatis, P., Papavdis, D., Raios, G., Siafas, I., Velonakis, S., Koulentianos, E.

“…Objectives: To evaluate the adequacy of patient data and clinical information transmitted to the radiological departments by the referring clinicians in view…”
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Effective and ovarian dose in PA conventional and rotational 3D hysterosalpingography examinations by Efstathopoulos, E.P, Charalambatou, P.P, Tsalafoutas, I.A, Kelekis, A.D, Antonakos, I, Brountzos, E, Kelekis, D.A

“…Abstract The purpose of this study was to compare effective and ovarian doses (E and OD, respectively) in hysterosalpingography (HSG) examinations performed…”
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