Hasan Gündoğdu

ORCID: 0000-0003-0858-7304
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About
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Research Areas
  • Radiomics and Machine Learning in Medical Imaging
  • Long-Term Effects of COVID-19
  • Gallbladder and Bile Duct Disorders
  • COVID-19 Clinical Research Studies
  • Thyroid Cancer Diagnosis and Treatment
  • Spine and Intervertebral Disc Pathology
  • Photovoltaic System Optimization Techniques
  • Pancreatitis Pathology and Treatment
  • Renal and Vascular Pathologies
  • Liver Disease Diagnosis and Treatment
  • MRI in cancer diagnosis
  • Venous Thromboembolism Diagnosis and Management
  • Nasolacrimal Duct Obstruction Treatments
  • Head and Neck Surgical Oncology
  • Bone and Joint Diseases
  • solar cell performance optimization
  • Sinusitis and nasal conditions
  • Lung Cancer Diagnosis and Treatment
  • Medical Imaging Techniques and Applications
  • Hernia repair and management
  • Urological Disorders and Treatments
  • Organ Donation and Transplantation
  • Tracheal and airway disorders
  • Solar Radiation and Photovoltaics
  • Pelvic and Acetabular Injuries

Samsun University
2023-2025

Recep Tayyip Erdoğan University
2020-2024

Yıldız Technical University
2021-2024

Rize Devlet Hastanesi
2023

State Hospital
2023

Haydarpaşa Numune Eğitim ve Araştırma Hastanesi
2018

Hacettepe University Hospital
1990-1993

Considering photovoltaic systems' sustainability and environmental friendliness, they have been widely used due to ease of installation as their cost reduces efficiency is improved. Analytical maximum power point tracking methods for system work effectively under uniform weather conditions. However, may fall into local points partial shading Although numerous meta-heuristic can overcome these challenges, still be improved regarding the convergence time global point. This paper suggests an...

10.1109/access.2024.3350269 article EN cc-by-nc-nd IEEE Access 2024-01-01

Abstract Purpose Metabolic dysfunction–associated steatotic liver disease (MASLD) and non-alcoholic fatty pancreatic (NAFPD) are metabolic diseases with rising incidence. Fatty infiltration may lead to dysfunction of the tissues. This study aims quantify fat fractions examine their correlation severity in acute pancreatitis patients. Methods The was assessed using revised Atlanta classification (RAC), computed tomography index (CTSI), modified CTSI (mCTSI). Proton density fraction (PDFF)...

10.1007/s00261-025-04809-y article EN cc-by Abdominal Radiology 2025-01-30

Background: The aim of this study was to evaluate the effects preoperative three-dimensional (3D) modeling on performance uniportal video-assisted thoracoscopic bronchial sleeve resection and early postoperative outcomes. Methods: A total 10 patients (5 males, 5 females; mean age: 53.8±16.9 years; range, 18 75 years) who underwent with 3D between April 2021 November 2023 were retrospectively analyzed. Preoperative prepared using computed tomography an open-source software program....

10.5606/tgkdc.dergisi.2024.26059 article EN Turkish Journal of Thoracic and Cardiovascular Surgery 2024-04-01

Aims: This study aims to use deep learning (DL) classify thyroid nodules as benign and malignant with ultrasonography (US). In addition, this investigates the impact of DL on diagnostic success radiologists different experiences. Material methods: included 576 US images nodules. The dataset was divided into 80% training 20% test sets. Four levels experience classified in set benign-malignant. A model then trained train predicted benign-malignant for set. Then, output each nodule presented 4...

10.11152/mu-4432 article EN Medical Ultrasonography 2024-09-04

Primary realignment was used in the treatment of 12 children with complete rupture posterior urethra; 10 developed strictures but 7 these responded to dilation. Problems continence were encountered only patients who strictures. Since primary results dilatable most patients, it is suggested that this should be choice children.

10.1111/j.1464-410x.1990.tb14839.x article EN British Journal of Urology 1990-06-01

Objective: To discriminate between malignant or benign axillary lymph nodes in breast cancer using MRI, PET-CT, and sentinel node biopsy.

10.29271/jcpsp.2020.09.946 article EN Journal of College of Physicians And Surgeons Pakistan 2020-09-01

Study Design: Retrospective study.Objection: There can be a relationship between degenerative diseases in the spine and hip.Summary of Background Data: Degenerative hip may occur concomitantly. This study was done to investigate cross-sectional area psoas muscle size incidence lumbar disc herniation after unilateral arthroplasty.Methods: The data files patients who were operated on for arthroplasty January 2014- 15 May 2021 at Recep Tayyip Erdogan University Hospital retrospectively analysed...

10.1080/00207454.2022.2115907 article EN International Journal of Neuroscience 2022-09-01

To determine the relationship between occurrence of lumbar L4-5 disc herniation (LDH) and size psoas muscles.The cross-sectional areas (CSAs) muscles were measured at level on axial MRI patients with LDH who admitted to hospital 1 January 2020 June 2020. The divided into three groups according involvement side as without (Group I), right II), left III). ipsilateral opposite CSA PM in control group LDHs was analyzed.This retrospective study included 65 (ages 20 70 years) whose mean age is 42,...

10.5137/1019-5149.jtn.34649-21.2 article EN Turkish Neurosurgery 2021-01-01

Objective: Acute pulmonary embolism (APE) is frequently associated with high morbidity and mortality rates. Numerous studies have investigated the prognostic significance of cardiovascular computed tomography (CT) parameters. This study aimed to investigate potential CT scan predictors 24-hour in APE evaluate value inferior vena cava (IVC) reflux score calculated on predicting mortality. Methods: was a single-center, retrospective study. Approval from local ethics committee (decision no....

10.18502/fem.v8i2.15460 article EN Frontiers in Emergency Medicine 2024-05-12

Abstract Solar photovoltaic energy is a vital renewable resource because it clean, endless, and pollution‐free. Due to the fast growth of semiconductor power electronics sectors, (PV) technologies are climbing significant attention in modern electrical applications. Operating PV conversion systems at maximum point essential for getting output raising efficiency. This paper proposes regression‐based Perturb Observe method quickly find global point, avoiding being stuck local maxima, likewise...

10.1049/rpg2.13017 article EN cc-by-nc-nd IET Renewable Power Generation 2024-06-03

In patients with COVID-19, neurodegeneration may develop before clinical symptoms appear. Diffusion-weighted (DW) MRI is an important technique for analyzing microstructural changes such as gliosis. this study, a quantitative evaluation of in the brain apparent diffusion coefficient (ADC) values presenting headache after COVID-19 disease was analyzed and compared. DW MR images 20 (13 females, 7 males) who required imaging due to headache; controls (16 4 were retrospectively reevaluated. ADC...

10.4103/0028-3886.383878 article EN Neurology India 2023-07-01

Aim: COVID-19 infections the tissue through angiotensin converting enzyme 2 receptor, which is also expressed on endothelial cells.Endothelial dysfunction may be associated with lung involvement.Asymmetric dimethylarginine (ADMA) an indirect marker of dysfunction.The aim our study was to evaluate ADMA concentrations and identify its association involvement in patients disease.Methods: We included 42 infection (Group 1).Forty-two age sex matched without pneumonia acted as control group 2).All...

10.30714/j-ebr.2021471926 article EN Experimental Biomedical Research 2021-10-01

Objective: To determine the results of high-risk geriatric patients treated with percutaneous cholecystostomy (PC) for acute cholecystitis (AC).

10.29271/jcpsp.2021.07.770 article EN Journal of College of Physicians And Surgeons Pakistan 2021-07-01

ÖzAdefovir dipivoksil (ADV), kronik hepatit tedavisinde kullanılan bir nükleotid analoğudur.Proksimal renal tübüler fonksiyon bozukluğu, bu ajanın yan etkilerinden biridir ve hipofosfatemi osteomalazi ile karakterizedir.Bununla birlikte, ADV tedavisine bağlı

10.4274/tod.04796 article TR cc-by-nc-nd Turkish Journal of Osteoporosis 2018-08-01

Aim: To analyze the image quality and diagnostic performance of CT angiography using low dose (60 ml) contrast medium for living kidney donors compare with surgical results.
 Material Method: Angiographic findings 81 renal donor candidates in 128-slice MDCT were evaluated by two independent radiologists terms artery number, early bifurcation, vein variations, pelvicalyceal system ureter variations. Results compared intraoperative findings. The quality, interobserver agreement obtained...

10.32322/jhsm.1014834 article EN cc-by-nc-nd Journal of Health Sciences and Medicine 2022-01-17

Abstract Objective: There is a need to evaluate the treatment response in patients who have undergone radioiodine (RIT) for differentiated thyroid cancerDiagnostic tests that are used this purpose include whole body scan (sWBS) and serum thyroglobulin (Tg) measurement which most accurate during thyroid-stimulating hormone (TSH) stimulation. However temporary discontinuation of therapy increase TSH (withdrawal) may be associated with morbidity hypothyroidism The aim our study was show effects...

10.21203/rs.3.rs-684400/v1 preprint EN cc-by Research Square (Research Square) 2021-07-23

Persistent Mullerian duct syndrome is a rare form disorder of sexual differentiation characterised by the persistence derivatives (fallopian tubes, uterus and proximal vagina) in males with an XY karyotype normal virilisation. We report case 29-year-old man right transverse testicular ectopia, mix germ cell cancer at ectopic testis left-sided obstructed inguinal hernia containing fallopian tube. performed orchiectomy hysterectomy on patient.

10.1111/and.14229 article EN Andrologia 2021-09-06

This study compares the performances of Meta-heuristic grey wolf optimization (GWO) and analytical-based Perturb Observe (P&O) algorithms to extract maximum power from a photovoltaic system exposed rapid variation sunlight partial shading conditions. Theoretical models were created using Pvlib library, new flexible module in Python environment. Algorithm have been evaluated on DC-DC step-down converter built PySpice/Python library. The results show that GWO algorithm provides superior...

10.23919/eleco54474.2021.9677791 article EN 2021 13th International Conference on Electrical and Electronics Engineering (ELECO) 2021-11-25

Aim: There is a need to evaluate the treatment response in patients who have undergone radioiodine (RIT) for differentiated thyroid cancer. Diagnostic tests that are used this purpose include whole-body scan (WBS) and serum thyroglobulin (Tg) measurement, which most accurate during thyroid-stimulating hormone (TSH) stimulation. However, temporary discontinuation of therapy increase TSH (withdrawal) may be associated with morbidity hypothyroidism. The study aimed show effects withdrawal (THW)...

10.32322/jhsm.1196968 article EN cc-by-nc-nd Journal of Health Sciences and Medicine 2023-01-09
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