Search Results - "Apostolopoulos, Dimitris J."

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…”
Get full text

A Deep Learning Methodology for the Detection of Abnormal Parathyroid Glands via Scintigraphy with 99mTc-Sestamibi by Apostolopoulos, Ioannis D., Papathanasiou, Nikolaos D., Apostolopoulos, Dimitris J.

“…Background: Parathyroid proliferative disorder encompasses a wide spectrum of diseases, including parathyroid adenoma (PTA), parathyroid hyperplasia, and…”
Get full text

Deep learning exploration for SPECT MPI polar map images classification in coronary artery disease by Papandrianos, Nikolaos I., Apostolopoulos, Ioannis D., Feleki, Anna, Apostolopoulos, Dimitris J., Papageorgiou, Elpiniki I.

“…Objective The exploration and the implementation of a deep learning method using a state-of-the-art convolutional neural network for the classification of…”
Get full text

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…”
Get full text

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…”
Get full text

Deep Learning Methods to Reveal Important X-ray Features in COVID-19 Detection: Investigation of Explainability and Feature Reproducibility by Apostolopoulos, Ioannis D., Apostolopoulos, Dimitris J., Papathanasiou, Nikolaos D.

“…X-ray technology has been recently employed for the detection of the lethal human coronavirus disease 2019 (COVID-19) as a timely, cheap, and helpful ancillary…”
Get full text

A Multi-Modal Machine Learning Methodology for Predicting Solitary Pulmonary Nodule Malignancy in Patients Undergoing PET/CT Examination by Apostolopoulos, Ioannis D, Papathanasiou, Nikolaos D, Apostolopoulos, Dimitris J, Papandrianos, Nikolaos, Papageorgiou, Elpiniki I

“…This study explores a multi-modal machine-learning-based approach to classify solitary pulmonary nodules (SPNs). Non-small cell lung cancer (NSCLC), presenting…”
Get full text

Integrating Machine Learning in Clinical Practice for Characterizing the Malignancy of Solitary Pulmonary Nodules in PET/CT Screening by Apostolopoulos, Ioannis D, Papathanasiou, Nikolaos D, Apostolopoulos, Dimitris J, Papandrianos, Nikolaos, Papageorgiou, Elpiniki I

“…The study investigates the efficiency of integrating Machine Learning (ML) in clinical practice for diagnosing solitary pulmonary nodules' (SPN) malignancy…”
Get full text

Innovative Attention-Based Explainable Feature-Fusion VGG19 Network for Characterising Myocardial Perfusion Imaging SPECT Polar Maps in Patients with Suspected Coronary Artery Disease by Apostolopoulos, Ioannis D., Papathanasiou, Nikolaοs D., Papandrianos, Nikolaos, Papageorgiou, Elpiniki, Apostolopoulos, Dimitris J.

“…Greece is among the European Union members topping the list of deaths related to coronary artery disease. Myocardial Perfusion Imaging (MPI) with Single-Photon…”
Get full text

Artificial Intelligence Methods for Identifying and Localizing Abnormal Parathyroid Glands: A Review Study by Apostolopoulos, Ioannis D, Papandrianos, Nikolaos I, Papageorgiou, Elpiniki I, Apostolopoulos, Dimitris J

“…Background: Recent advances in Artificial Intelligence (AI) algorithms, and specifically Deep Learning (DL) methods, demonstrate substantial performance in…”
Get full text

Assessment of absolute Tc-99m tetrofosmin retention in the myocardium as an index of myocardial blood flow and coronary flow reserve by gated-SPECT/CT: a feasibility study by Apostolopoulos, Dimitris J., Kaspiri, Agaristi, Spyridonidis, Trifon, Patsouras, Nikolaos, Savvopoulos, Christos A., Davlouros, Pericles, Vassilakos, Pavlos. J., Alexopoulos, Dimitrios

“…Objective Estimation of myocardial blood flow (MBF) and coronary flow reserve (CFR) by SPECT myocardial perfusion imaging (MPI) remains challenging. Our aim…”
Get full text

Tc-99m depreotide SPECT/CT for lymph node staging of non-small-cell lung cancer by Apostolopoulos, Dimitris J., Koletsis, Efstratios N., Spyridonidis, Trifon, Paschali, Anna, Papandrianos, Nikolaos, Stamou, Eleni, Vassilakos, Pavlos J., Dougenis, Dimitrios

“…Objective To investigate the potential role of Tc-99m depreotide (Tc-DEPR) in the preoperative lymph node (N) staging of non-small-cell lung cancer (NSCLC)…”
Get full text

Automatic characterization of myocardial perfusion imaging polar maps employing deep learning and data augmentation by Apostolopoulos, Ioannis D, Papathanasiou, Nikolaos D, Spyridonidis, Trifon, Apostolopoulos, Dimitris J

“…OBJECTIVETo investigate a deep learning technique, more specifically state-of-the-art convolutional neural networks (CNN), for automatic characterization of…”
Get full text

Adherence of Tc-99m agents to plastic syringes by Spyridonidis, Trifon, Skouras, Theodoros, Apostolopoulos, Dimitris J.

Get full text

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…”
Get full text

An Explainable Classification Method of SPECT Myocardial Perfusion Images in Nuclear Cardiology Using Deep Learning and Grad-CAM by Papandrianos, Nikolaos I., Feleki, Anna, Moustakidis, Serafeim, Papageorgiou, Elpiniki I., Apostolopoulos, Ioannis D., Apostolopoulos, Dimitris J.

“…Background: This study targets the development of an explainable deep learning methodology for the automatic classification of coronary artery disease,…”
Get full text

Technetium-99m depreotide imaging by single photon emission tomography/low resolution computed tomography in malignant lymphomas: comparison with gallium-67 citrate by Apostolopoulos, Dimitris J., Papandrianos, Nikolaos I., Symeonidis, Argiris, Spyridonidis, Tryfon, Alexiou, Sotiria, Zampakis, Petros, Savvopoulos, Christos, Vassilakos, Pavlos J., Matsouka, Panagiota

“…Objective Previous studies have demonstrated the feasibility of targeting lymphoma lesions with somatostatin receptor binding agents, mainly with…”
Get full text

Advanced fuzzy cognitive maps: state-space and rule-based methodology for coronary artery disease detection by Apostolopoulos, Ioannis D, Groumpos, Peter P, Apostolopoulos, Dimitris J

“…According to the World Health Organization, 50% of deaths in European Union are caused by Cardiovascular Diseases (CVD), while 80% of premature heart diseases…”
Get more information

CT-based attenuation correction in Tl-201 myocardial perfusion scintigraphy is less effective than non-corrected SPECT for risk stratification by Savvopoulos, Christos A., Spyridonidis, Trifon, Papandrianos, Nikolaos, Vassilakos, Pavlos J., Alexopoulos, Dimitrios, Apostolopoulos, Dimitris J.

“…Previous studies advocate the use of attenuation correction in myocardial perfusion scintigraphy (MPS) for patient risk stratification. Six-hundred and…”
Get full text

Atypical Bilateral Stress Fractures of the Femoral Shaft Diagnosed by Bone Scintigraphy in a Woman With Osteoporosis by Papandrianos, Nikolaos, Alexiou, Sotiria, Xouria, Xanthi, Apostolopoulos, Dimitris J

“…ABSTRACTRecent case series have identified the presence of atypical insufficiency fractures at the diaphyseal femur of osteoporotic patients, which are…”
Get full text