Kurum Yazarı "Beyazal, Mehmet" İçin Listeleme
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Assessment of the visual pathways in patients with neurofibromatosis-1 by 3S-space technique with 3-Tesla MRI
Background/aim: We aimed to evaluate the size/tortuosity of the optic nerve (ON) and the dilatation of the ON sheath (ONS) in neurofibromatosis type 1 (NF-1) patients with 3T-MRI, and to assess the usefulness of 3D-SPACE ... -
The association of achilles sonoelastography findings with disease activity, functional status and enthesitis index in patients with axial spondyloarthritis
Beyazal, Mehmet; Beyazal, Münevver Serdaroğlu; Beyazal Çeliker, Fatma; Devrimsel, Gül; Yıldırım, Murat (Georg Thieme Verlag, 2022)Background Sonoelastography (SE) is a new ultrasound (US)-based technique able to assess tissue elasticity. Using conventional US, it is sometimes difficult or even impossible to distinguish pathologic tissue because it ... -
Could the cerebral involvement of COVID-19 disease be related to microstructural changes that are not reflected in conventional MRI images?
Çeliker, Fatma Beyazal; Kanat, Ayhan; Turan, Arzu; Beyazal, Mehmet; Burakgazi, Gülen; Hürsoy, Nur; Gündoğdu, Hasan; Polat, Hatice Beyazal (Gale Academic Onefile, 2023)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. In this study, a ... -
The effect of gadolinium-based contrast agents on rat testis
Çeliker, Fatma Beyazal; Tümkaya, Levent; Mercantepe, Tolga; Turan, Gupse; Yılmaz, Adnan; Beyazal, Mehmet; Turan, Abdulkadir; İnecikli, Mehmet Fatih; Kösem, M. (Wiley, 2018)Previous studies have reported that repeated administrations of linear gadolinium-based contrast agents lead to their accumulation in the brain and other tissues in individuals with normal renal functions. the purpose of ... -
The effects of choanal atresia on development of the paranasal sinuses and turbinates
Terzi, Suat; Dursun, Engin; Çeliker, Fatma Beyazal; Çeliker, Metin; Beyazal, Mehmet; Özgür, Abdulkadir; Tatar, Emel Cadalli; Korkmaz, Mehmet Hakan (Springer France, 2017)Purpose the objective of this study was to evaluate the volume of paranasal sinuses (PNS) and turbinate in patients with unilateral choanal atresia (CA). Materials and method Computed tomography images of PNS in 11 individuals ... -
Effects of gadodiamide and gadoteric acid on rat kidneys: A comparative study
Çeliker, Fatma Beyazal; Tümkaya, Levent; Mercantepe, Tolga; Beyazal, Mehmet; Turan, Arzu; Beyazal Polat, Hatice; Suzan, Zehra Topal; İnecikli, Mehmet Fatih; Akyıldız, Kerimali; Yılmaz, Adnan (Wiley, 2019)Background Gadolinium-based contrast agents are complex chelates to provide contrast in NRI. However, recent studies have highlighted the deposition of free Gd+3 ion in various tissues. Purpose To evaluate the histopathological ... -
The effects of long-term doppler ultrasound exposure in the prenatal period on renal tissue physiology in rats
Çeliker, Fatma Beyazal; Tümkaya, Levent; Mercantepe, Tolga; Zengin, Ertan; Beyazal, Mehmet; Turan, Arzu; Polat, Hatice Beyazal; Suzan, Zehra Topal; Yılmaz, Adnan (Taylor & Francis Inc., 2022)Doppler ultrasonography (DUSG) is widely used for fetal evaluations. This study investigated the effects of new generation Doppler ultrasound application at different frequencies during pregnancy on postnatal renal ... -
Effects of long-term Doppler ultrasound exposure on cochlea and cochlear nucleus in prenatal period in an experimental model
Çeliker, Metin; Beyazal Çeliker, Fatma; Tümkaya, Levent; Oğhan, Fatih; Özgür, Abdulkadir; Mercantepe, Tolga; Terzi, Suat; Beyazal, Mehmet; Turan, Arzu; Çınar, Seda; Zengin, Ertan; Demir, Emine; Dursun, Engin (Taylor & Francis Ltd., 2021)Background New generation Doppler ultrasonography (DUSG) application effects on cochlea and cochlear nucleus (CN) are unclear. We aimed to investigate the effects of new generation DUSG application at different frequencies ... -
The efficacy of magnetic resonance imaging for the diagnosis of superior semicircular canal dehiscence
Çeliker, Fatma Beyazal; Özgür, Abdulkadir; Çeliker, Metin; Beyazal, Mehmet; Turan, Arzu; Terzi, Suat; İnecikli, Mehmet Fatih (Aves, 2018)OBJECTIVE: This study aimed to evaluate the efficacy of magnetic resonance imaging (MRI) for diagnosing superior semicircular canal dehiscence (SSCD). MATERIALS and METHODS: the radiological records of patients who were ... -
The evaluation of eustachian tube paratubal structures using magnetic resonance imaging in patients with chronic suppurative otitis media
Terzi, Suat; Çeliker, Fatma Beyazal; Özgür, Abdulkadir; Çeliker, Metin; Beyazal, Mehmet; Demirci, Münir; Dursun, Engin (Taylor & Francis Ltd, 2016)Conclusion Eustachian tube (ET) dysfunction, which plays a role in the pathogenesis chronic suppurative otitis media (CSOM), does not seem to be due to differences in paratubal structures. Objective the aim of this study ... -
Evaluation of vascular variations at cerebellopontine angle by 3D T2WI magnetic-resonance imaging in patients with vertigo
Çeliker, Fatma Beyazal; Dursun, Engin; Çeliker, Metin; Durakoğlugil, Tuğba; Beyazal, Mehmet; İnecikli, Mehmet Fatih; Özgür, Abdulkadir (Ios Press, 2017)BACKGROUND: Vascular loops of the anterior-inferior cerebellar artery (AICA) at the cerebellopontine angle (CPA) are considered related to auditory-vestibular symptoms. Clinical association of these anatomical aberrations, ... -
Investigation of soft palate-uvula volume using magnetic resonance imaging in patients with obstructive sleep apnea
Çeliker, Fatma Beyazal; Çeliker, Metin; Terzi, Suat; Beyazal, Mehmet; Coşkun, Zerrin Özergin; Şahin, Ünal; Demirci, Münir; Dursun, Engin; Turan, Arzu (Derman Medical Publ, 2017)Aim: MRI-based sleep studies have revealed that airway movement disorders are associated with obstructive sleep apnea syndrome (OSAS). High-quality airway images are crucial for the accurate interpretation and planning of ... -
Is liver biopsy necessary in patients with chronic hepatitis B with normal alanine aminotransferase level?
Yıldız, İlknur Esen; Bahçeci, İlkay; Ilgar, Tuğba; Beyazal, Mehmet; Kostakoğlu, Uğur; Ertürk, Ayşe (Galenos Yayıncılık, 2022)Objectives: If not treated early, morbidity and mortality will remain high in hepatitis B virus infection. In this study, it was aimed to analyze the liver biopsy results of patients with chronic hepatitis B with normal ... -
Lumbosakral geçiş vertebrasının numaralandırılmasında paraspinal işaretleyicilerin değerlendirilmesi
Beyazal, Mehmet; Beyazal, Münevver Serdaroğlu; Kadıoğlu, Maksude Esra; Çeliker, Fatma Beyazal (2019)Amaç: Lumbosakral geçiş vertebra (GV) yaygın bir konjenital anomali olup kronik bel ağrısı ile ilişkili olduğu bilinmektedir. Bu çalışmanın amacı bilgisayarlı tomografi (BT) görüntülerde lumbosakral GV’nin doğru ... -
Manyetik Rezonans Kontrast Ajanların Sıçan Beyni Üzerine Etkilerinin Histopatolojik Değerlendirilmesi
Çeliker, Fatma Beyazal; Tümkaya, Levent; Mercantepe, Tolga; Beyazal, Mehmet; Turan, Arzu; Burakgazi, Gülen; Hürsoy, Nur (2023)Amaç: Gadolinyum tabanlı kontrast ajanlar (GBCA), manyetik rezonans görüntülemelerde (MRG) kontrast sağlamak amaçlı kullanılmaktadır. GBKA yapısına bağlı olarak beyin dokusu ve diğer dokularda birikim olduğu ile ... -
Nazal tıkanıklığı olan hastaların östaki tüpü paratubal yapılarının manyetik rezonans görüntüleme ile değerlendirilmesi
Terzi, Suat; Beyazal Çeliker, Fatma; Dursun, Engin; Özgür, Abdulkadir; Beyazal, Mehmet; Çeliker, Metin; Demirci, Münir (2021)Amaç: Bu çalışmada tek taraflı nazal tıkanıklığı olan hastaların östaki tüpü paratubal yapıları manyetik rezonans görüntüleme (MRG) yöntemi ile değerlendirildi. Hastalar ve Yöntemler: Ocak 2018 - Aralık 2020 tarihleri arasında ... -
Noninvasive assessment of liver parenchyma using gray-scale ultrasound-based histogram analysis in patients with chronic hepatitis B infection
Beyazal, Mehmet; Polat, Hatice Beyazal; Ertürk, Ayşe; Bedir, Recep (Lippincott Williams & Wilkins, 2020)The aims of this study were to examine the alterations of liver echo-intensity histogram parameters in chronic hepatitis B (CHB) patients and to assess the potential role of histogram parameters in the evaluation of hepatic ... -
Periportal hepatic involvement of non-Hodgkin lymphoma: a rare case report with magnetic resonance imaging findings
Beyazal, Mehmet (Sage Publications Ltd, 2019)Lymphoma with hepatic involvement can present with three morphological patterns: diffuse infiltrative, nodular, and mixed infiltrative-nodular. However, lymphoma with periportal infiltrative hepatic involvement is rare. ... -
Posterior longitudinal ligament suturation after lumbar discectomy provides postoperative a large intradural area: First report
Batçık, Osman Ersagun; Kanat, Ayhan; Durmaz, Serdar; Özdemir, Bülent; Beyazal, Mehmet (Wolters Kluwer Medknow Publications, 2023)Background: Stability and flexibility of the spine are provided by the posterior longitudinal ligament (PLL). It plays a key role in the pathogenesis of lumbar disc herniation (LDH) by preventing disc protrusion. The effect ... -
The predictive value of temporal muscle thickness measured by ultrasonography for detecting moderate to severe malnutrition in chronic hemodialysis patients
Demirbaş, Sibel; Demirbaş, Zengin Aydın; Beyazal, Mehmet; Kara, Ekrem (Springer, 2023)Introduction and aimTo determine the predictive value of temporal muscle thickness (TMT) measured by ultrasonography in the diagnosing of moderate to severe malnutrition in chronic hemodialysis (CHD) patients.Materials and ...