Emmanouil Papanastasiou

ORCID: 0000-0002-8497-6849
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About
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Research Areas
  • Medical Imaging Techniques and Applications
  • Radiation Dose and Imaging
  • Advanced Radiotherapy Techniques
  • Advanced X-ray and CT Imaging
  • Thyroid Cancer Diagnosis and Treatment
  • Medical Imaging and Pathology Studies
  • Amyloidosis: Diagnosis, Treatment, Outcomes
  • Radiology practices and education
  • Prostate Cancer Treatment and Research
  • Advances in Oncology and Radiotherapy
  • Cardiac Imaging and Diagnostics
  • Radiopharmaceutical Chemistry and Applications
  • Context-Aware Activity Recognition Systems
  • Parathyroid Disorders and Treatments
  • Neurological disorders and treatments
  • Parkinson's Disease Mechanisms and Treatments
  • Radiomics and Machine Learning in Medical Imaging
  • Lung Cancer Research Studies
  • Thyroid Disorders and Treatments
  • Advanced MRI Techniques and Applications
  • Lung Cancer Diagnosis and Treatment
  • COVID-19 and healthcare impacts
  • Non-Invasive Vital Sign Monitoring
  • Neurological and metabolic disorders
  • Delphi Technique in Research

Aristotle University of Thessaloniki
2016-2024

AHEPA University Hospital
2012-2024

Interbalkan Medical Center
2024

St Savas Hospital
2024

Theageneio General Hospital
2024

National and Kapodistrian University of Athens
1992

Hippocampus protection, as an organ at risk in brain radiotherapy, might protect patients' quality of life. Prophylactic cranial irradiation (PCI) has been used traditionally small cell lung cancer (SCLC) patients it increases survival. This study aimed to discover the contributing parameters for a successful PCI with simultaneous protection hippocampus by using three different treatment machines. For this purpose, plans were generated 45 SCLC half-arcs linear accelerators (LINACs; Elekta...

10.7759/cureus.63137 article EN Cureus 2024-06-25

Cardiomyopathy is a common manifestation of transthyretin amyloidosis (ATTR), leading to heart failure, associated with high morbidity and mortality. The aim this study was investigate the effect Tafamidis treatment by means cardiac radiotracer uptake on myocardial scintigraphy.Five male patients, mean age 76.2 years, wild-type ATTR were included in protocol. Total body scanning using technetium-99m-3,3-diphosphono-1,2-propanodicarboxylic acid (99mTc-DPD) (in four patients)...

10.1967/s002449912483 article EN PubMed 2022-08-02

Hypovitaminosis D is prevalent in epidemic proportions many developed countries. The aim of this study to investigate the prevalence adequate 25-hydroxyvitamin [25(OH)D] levels two Mediterranean countries, Greece and Cyprus. Data such as 25(OH)D, month blood sample collection, demographic information were blindly collected from 8780 Greek 2594 Cypriot individuals over 5 years. Comorbidities also recorded for 839 subjects. Univariate multivariate analyses used examine relationship between...

10.3390/nu14183778 article EN Nutrients 2022-09-13

Aim . To compare the cardiovascular autonomic reflex tests (CARTs) with cardiac sympathetic innervation imaging 123 I-metaiodobenzylguanidine (MIBG) in patients type 1 diabetes mellitus (T1DM). Patients and Methods Forty-nine (29 males, mean age 36 ± 10 years, T1DM duration 19 6 years) without risk factors were prospectively enrolled. Participants evaluated for dysfunction by assessing circular resultant (MCR), Valsalva maneuver (Vals), postural index (PI), orthostatic hypotension (OH)....

10.1155/2018/5607208 article EN cc-by International Journal of Endocrinology 2018-01-01

We aimed to examine if single photon emission computed tomography (SPECT) can discriminate between variants of frontotemporal dementia (FTD). As a secondary investigation we identify and establish the linguistic differences those variants.Nine patients with semantic variant primary progressive aphasia (svPPA), 8 non-fluent (nfvPPA) 17 behavioral (bvFTD) were compared on Addenbrooke's cognitive examination-revised (ACE-R), auditory comprehension, oral expression verbal fluency. All also...

10.1967/s002449912436 article EN PubMed 2022-04-08

This study compared the radiomic features and quantitative biomarkers of 18 F-PSMA-1007 [prostate-specific membrane antigen (PSMA)] F-fluorocholine (FCH) PET/computed tomography (CT) in prostate cancer patients with biochemical recurrence (BCR) enrolled phase 3, prospective, multicenter BIO-CT-001 trial.

10.1097/mnm.0000000000001867 article EN Nuclear Medicine Communications 2024-06-03

Sleep is an essential biological function that critical for a healthy and fulfilling life. Available sleep quality assessment tools contain long questionnaires covering period of time, not taking into account daily physical activity patterns individual lifestyles.

10.1016/j.compbiomed.2024.109306 article EN cc-by Computers in Biology and Medicine 2024-11-14

Abstract The purpose of this work was to develop and validate a Monte Carlo model for Dual Source Computed Tomography (DSCT) scanner based on the N-particle radiation transport computer code (MCNP5). geometry Siemens Somatom Definition CT modeled, taking into consideration x-ray spectrum, bowtie filter, collimator, detector system. accuracy simulation from dosimetry point view tested by calculating Dose Index (CTDI) values. Furthermore, typical quality assurance phantoms were modeled in...

10.2478/pjmpe-2020-0002 article EN Polish Journal of Medical Physics And Engineering 2020-03-01

In this paper we present the first steps in developing SmartHypnos, an easy to use and user friendly graphical interface, which aims provide polysomngographic data visualization detection classification of sleep related events. Currently SmartHypnos supports EEG, ECG, EOG EMG signals, respiratory signals such as nasal pressure, thermistor, oxygen saturation, thoracic abdominal belt recordings. All these are incorporated into interface that provides quick effortless access mentioned above....

10.1109/embc.2019.8857416 article EN 2019-07-01
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