Search Results - "Panayiotakis, George"

Applications of Generative Adversarial Networks (GANs) in Positron Emission Tomography (PET) imaging: A review by Apostolopoulos, Ioannis D., Papathanasiou, Nikolaos D., Apostolopoulos, Dimitris J., Panayiotakis, George S.

“…Purpose This paper reviews recent applications of Generative Adversarial Networks (GANs) in Positron Emission Tomography (PET) imaging. Recent advances in Deep…”
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The ultrasonographic measurement of muscle thickness in sarcopenia. A prediction study by Barotsis, Nikolaos, Galata, Angeliki, Hadjiconstanti, Anastasia, Panayiotakis, George

“…Sarcopenia is a common disease in the elderly. Although extensive research has been conducted on muscle mass and quality assessment tools, there are still…”
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Automatic Extraction of Muscle Parameters with Attention UNet in Ultrasonography by Katakis, Sofoklis, Barotsis, Nikolaos, Kakotaritis, Alexandros, Economou, George, Panagiotopoulos, Elias, Panayiotakis, George

“…Automatically delineating the deep and superficial aponeurosis of the skeletal muscles from ultrasound images is important in many aspects of the clinical…”
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MTF of columnar phosphors with a homogenous part: an analytical approach by Psichis, Konstantinos, Kalyvas, Nektarios, Kandarakis, Ioannis, Panayiotakis, George

“…A method for the theoretical estimation of the MTF of columnar phosphors with a homogeneous part at the end used in X-ray imaging has been developed. This…”
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PATIENT DOSES IN COMMON DIAGNOSTIC X-RAY EXAMINATIONS by Metaxas, Vasileios I, Messaris, Gerasimos A, Lekatou, Aristea N, Petsas, Theodore G, Panayiotakis, George S

“…A local survey was conducted, to evaluate the radiation dose to adult patients who underwent diagnostic X-ray examinations. Patient-related and technical data…”
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Reliability of muscle thickness measurements in ultrasonography by Barotsis, Nikolaos, Tsiganos, Panagiotis, Kokkalis, Zinon, Panayiotakis, George, Panagiotopoulos, Elias

“…This study aims to clarify some of the issues associated with the reliable measurement of muscle thickness on ultrasonographic images of the musculoskeletal…”
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Multi-input deep learning approach for Cardiovascular Disease diagnosis using Myocardial Perfusion Imaging and clinical data by Apostolopoulos, Ioannis D., Apostolopoulos, Dimitris I., Spyridonidis, Trifon I., Papathanasiou, Nikolaos D., Panayiotakis, George S.

“…[Display omitted] •Multi input data classification methodology for Coronary Artery Disease diagnosis.•Integration of InceptionV3 network and Random Forest…”
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Patient dose in CT angiography examinations: An institutional survey by Metaxas, Vasileios I., Dimitroukas, Christos P., Efthymiou, Fotios O., Zampakis, Petros E., Panayiotakis, George S., Kalogeropoulou, Christina P.

“…This study aims to evaluate the radiation dose during five computed tomography angiography (CTA) examinations performed with a GE Light Speed 16 (16-slice) and…”
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Explainable Artificial Intelligence Method (ParaNet+) Localises Abnormal Parathyroid Glands in Scintigraphic Scans of Patients with Primary Hyperparathyroidism by Apostolopoulos, Dimitris J, Apostolopoulos, Ioannis D, Papathanasiou, Nikolaos D, Spyridonidis, Trifon, Panayiotakis, George S

“…The pre-operative localisation of abnormal parathyroid glands (PG) in parathyroid scintigraphy is essential for suggesting treatment and assisting surgery…”
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Detection and Localisation of Abnormal Parathyroid Glands: An Explainable Deep Learning Approach by Apostolopoulos, Dimitris J, Apostolopoulos, Ioannis D, Papathanasiou, Nikolaos D, Spyridonidis, Trifon, Panayiotakis, George S

“…Parathyroid scintigraphy with 99mTc-sestamibi (MIBI) is an established technique for localising abnormal parathyroid glands (PGs). However, the identification…”
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LOW BMI PATIENT DOSE IN DIGITAL RADIOGRAPHY by Efthymiou, Fotios O, Metaxas, Vasileios I, Dimitroukas, Christos P, Panayiotakis, George S

“…Abstract In this study, the radiation dose received by 364 low body mass index (BMI) adult patients undergoing chest, abdomen, lumbar spine, kidneys and…”
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Automatic classification of solitary pulmonary nodules in PET/CT imaging employing transfer learning techniques by Apostolopoulos, Ioannis D., Pintelas, Emmanuel G., Livieris, Ioannis E., Apostolopoulos, Dimitris J., Papathanasiou, Nikolaos D., Pintelas, Panagiotis E., Panayiotakis, George S.

“…Early and automatic diagnosis of Solitary Pulmonary Nodules (SPN) in Computed Tomography (CT) chest scans can provide early treatment for patients with lung…”
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Patient dose audit in common CT examinations by Dimitroukas, Christos P., Metaxas, Vasileios I., Efthymiou, Fotios O., Kalogeropoulou, Christina P., Zampakis, Petros E., Panayiotakis, George S.

“…A dose audit was performed to evaluate the radiation dose to 573 adult patients, who underwent eleven common CT examinations in two different CT scanners: one…”
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PATIENT DOSE IN DIGITAL RADIOGRAPHY UTILISING BMI CLASSIFICATION by Metaxas, Vasileios I, Messaris, Gerasimos A, Lekatou, Aristea N, Petsas, Theodore G, Panayiotakis, George S

“…Dose audit is important towards optimisation of patients' radiation protection in diagnostic radiography. In this study, the effect of the body mass index…”
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DOSIMETRIC EVALUATION OF THE TWO-PHASE COMPUTED TOMOGRAPHY IN PARATHYROID GLANDS IMAGING by Dimitroukas, Christos P, Metaxas, Vasileios I, Efthymiou, Fotios O, Zampakis, Petros E, Kalogeropoulou, Christina P, Panayiotakis, George S

“…Abstract This study evaluates the patient radiation dose from the two-phase protocols of two different computed tomography (CT) systems and compares this with…”
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Patient Dose Estimation in Computed Tomography-Guided Biopsy Procedures by Siomou, Evangelia, Filippiadis, Dimitrios K, Efstathopoulos, Efstathios P, Antonakos, Ioannis, Panayiotakis, George S

“…This study establishes typical Diagnostic Reference Levels (DRL) values and assesses patient doses in computed tomography (CT)-guided biopsy procedures. The…”
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Luminescence Efficiency of Cadmium Tungstate (CdWO4) Single Crystal for Medical Imaging Applications by Michail, Christos, Koukou, Vaia, Martini, Niki, Saatsakis, George, Kalyvas, Nektarios, Bakas, Athanasios, Kandarakis, Ioannis, Fountos, George, Panayiotakis, George, Valais, Ioannis

“…Background: In this study, the light output of a cadmium tungstate (CdWO4) single crystal was measured under various X-ray radiographic energies. Methods: A…”
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Muscle Cross-Sectional Area Segmentation in Transverse Ultrasound Images Using Vision Transformers by Katakis, Sofoklis, Barotsis, Nikolaos, Kakotaritis, Alexandros, Tsiganos, Panagiotis, Economou, George, Panagiotopoulos, Elias, Panayiotakis, George

“…Automatically measuring a muscle’s cross-sectional area is an important application in clinical practice that has been studied extensively in recent years for…”
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PATIENT SIZE INDICES AND DOSE IN FLUOROSCOPICALLY GUIDED LUMBAR DISCECTOMY AND FUSION: A PRELIMINARY STUDY by Metaxas, Vasileios I, Gatzounis, George D, Tzortzidis, Fotios N, Panayiotakis, George S

“…Abstract Patient dose values varied significantly during interventional procedures, mainly due to the patient size, operators’ choices and clinical complexity…”
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BMI-Based organ doses in endovascular aneurysm repair interventions utilising Monte Carlo simulation by Efthymiou, Fotios O., Metaxas, Vasileios I., Dimitroukas, Christos P., Kakkos, Stavros K., Moulakakis, Konstantinos G., Belavgenis, Andreas C., Panayiotakis, George S.

“…In this study, the effect of body-mass-index (BMI) on organ doses (ODs) during infrarenal endovascular-aneurysm-repair (EVAR) procedures was evaluated…”
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