Person: YURTSEVER, İSMAİL
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Publication Metadata only Anevrizmatik subaraknoid kanama sonrası prognostik faktör olarak platelet volüm indeksinin değerlendirilmesi(2019-09-01) Dündar, Tolga Turan; DÜNDAR, TOLGA TURAN; KİTİŞ, SERKAN; YURTSEVER, İSMAİLPublication Metadata only Meme kanseri beyin metastazlarının moleküler subgruplarının difüzyon tensor görüntüleme ile değerlendirilmesi(2019-04-27T00:00:00Z) Yurtsever, İsmail; Gültekin, Mehmet Ali; Yılmaz, Temel Fatih; Türk, Hacı Mehmet; Alkan, Alpay; YURTSEVER, İSMAİL; GÜLTEKİN, MEHMET ALİ; YILMAZ, TEMEL FATİH; TÜRK, HACI MEHMET; ALKAN, ALPAYPublication Metadata only Akciğer kanserli olgularda intrakranial metastazlarının primer hücre tipinin belirlenmesinde DTG’nin etkinliği(2018-11-10T00:00:00Z) Bilgin, Mehmet; Yurtsever, İsmail; Türk, Hacı Mehmet; Alkan, Alpay; BİLGİN, MEHMET; YURTSEVER, İSMAİL; TÜRK, HACI MEHMET; ALKAN, ALPAYPublication Metadata only Primary diffuse leptomeningeal gliomatosis(2016-01-01) Çetinkaya, EZRA; ARALAŞMAK, AYŞE; TOPRAK, HÜSEYİN; YILDIZ, ŞEYMA; YURTSEVER, İSMAİL; ALKAN, ALPAY; ÇETİNKAYA, EZRA; ARALAŞMAK, AYŞE; TOPRAK, HÜSEYİN; YILDIZ, ŞEYMA; YURTSEVER, İSMAİL; ALKAN, ALPAYPublication Metadata only Correlation Between DTI Findings and Volume of Corpus Callosum in Children with Autism(2019-01-01T00:00:00Z) Temur, Hafize Otcu; YURTSEVER, İSMAİL; YEŞİL, GÖZDE; SHARIFOV, RASUL; Yilmaz, Fatih Temel; DÜNDAR, TOLGA TURAN; ALKAN, ALPAY; YURTSEVER, İSMAİL; YEŞİL, GÖZDE; SHARIFOV, RASUL; YILMAZ, TEMEL FATİH; DÜNDAR, TOLGA TURAN; ALKAN, ALPAYBackground: Autism Spectrum Disorder (ASD) is a complex developmental disorder in which neurological basis is largely unknown. The Corpus Callosum (CC) is the main commissure that connects the cerebral hemispheres. Previous evidence suggests the involvement of the CC in the pathophysiology of autism.Publication Metadata only Magnetic Resonance Spectroscopy Features of the Visual Pathways in Patients with Glaucoma.(2018-10-05) Aksoy, DÖ; Umurhan, Akkan; Alkan, ALPAY; Yurtsever, İ; Otçu, Temur; ALKAN, ALPAY; YURTSEVER, İSMAİLPurposeThe aim of the study was to investigate any metabolic changes on magnetic resonance spectroscopy (MRS) throughout the visual pathway of the brain in patients with glaucoma and a control group and correlate the results with clinical findings.Material and MethodsA total of 87 patients were enrolled in the study, 30 healthy controls, 25 glaucoma, 16 suspected glaucoma (GS) and 16 ocular hypertension (OHT) patients. A single voxel MRS on TE 30ms was performed by placing the volume of interest (VOI) on the corpus geniculatum laterale (CGL) and primary visual cortex (VC). Peak values of metabolites, such as N-acetyl aspartate (NAA), creatine (Cr), choline (Cho) and Myo-inositol (Ins) were investigated on MRS. The MRS results were correlated with age, intraocular pressure (IOP), retinal nerve fiber length (RNFL), mean deviation (MD) and cup disk ratio (CD).ResultsThe NAA values obtained from the CGL in glaucoma and GS cases were lower than the healthy control group. The Cho values at CGL in glaucoma were lower than GS and controls. There was a negative correlation between NAA values of the VC and CD in glaucoma cases. Additionally, there was a negative correlation between age and RNFL in both glaucoma and GS cases.ConclusionThe use of MRS can reveal neurodegeneration in CGL and VC in patients with glaucoma. Depiction of metabolic changes throughout the visual pathways via MRS will guide the treatment planning and follow-up in glaucoma and GS cases.Publication Metadata only Hemato-Onkolojik Kanserli Çocuklarda İnvaziv Fungal Enfeksiyonları Öngörmede Toraks Bilgisayarlı Tomografi Görüntülemesinin Yeri(2019-05-03T00:00:00Z) Bursal Duramaz, Burcu; Türel, Özden; Çakır, Fatma Betül; Yurtsever, İsmail; TÜREL, ÖZDEN; ÇAKIR, FATMA BETÜL; YURTSEVER, İSMAİLPublication Metadata only GAMMA KNİFE RADYOCERRAHİ İLE TEDAVİ EDİLEN AKUSTİK NÖROMALI OLGULARDA İŞİTME YOLAKLARININ DTG BULGULARI: BİR YILLIK TAKİP SONUÇLARIMIZ(2017-11-04) KURTCAN, SERPİL; HATİBOĞLU, MUSTAFA AZİZ; ALKAN, ALPAY; YURTSEVER, İSMAİL; AKSOY, DİRENÇ ÖZLEM; OTÇU, HAFİZE; KURTCAN, SERPİL; HATİBOĞLU, MUSTAFA AZİZ; ALKAN, ALPAY; YURTSEVER, İSMAİL; AKSOY, DİRENÇ ÖZLEMPublication Metadata only Serum SUR1 and TRPM4 in patients with subarachnoid hemorrhage.(2019-11-09) Uysal, O; Yurtsever, I; Abdallah, A; Dundar, TT; Guler, Eray Metin; Ozer, OF; DÜNDAR, TOLGA TURAN; YURTSEVER, İSMAİL; GÜLER, ERAY METİN; ÖZER, ÖMER FARUK; UYSAL, ÖMERNeuroinflammation plays an important role in neuronal injury after aneurysmal subarachnoid hemorrhage (aSAH). Sulfonylurea receptor 1 (SUR1) and transient receptor potential cation channel subfamily M member 4 (TRPM4) receptors play an important role in the pathogenesis of several neural injuries, such as neural edema, spinal cord damage, stroke, and neuronal damage in aSAH. This study aimed to investigate the relationship of serum SUR1 and TRPM4 levels with the neurological status within the first 15 days after aSAH. In this prospective study, blood samples were collected from 44 consecutive patients on the 1st, 4th, and 14th days after aSAH. Serum SUR1 and TRPM4 levels were measured using an enzyme-linked immunosorbent assay kit. Glasgow coma scale and World Federation of Neurosurgical Societies (WFNS) scores upon presentation and Glasgow outcome scale (GOS) score on the 14th day were recorded. Serum SUR1 and TRPM4 levels on the 1st, 4th, and 14th days were significantly higher in patients with aSAH than in normal individuals. This increase in the levels varied among the 1st, 4th, and 14th days. On the first day, a correlation was observed between serum SUR1, but not TRPM4, levels and the WFNS score. Moreover, on the 14th day, an association of serum SUR1 and TRPM4 levels with the GOS score was noted. Serum SUR1 and TRPM4 levels were significantly upregulated in the peripheral blood samples. Further study is warranted to establish the utility of SUR1 and TRPM4 as biomarkers in patients with aSAH.Publication Metadata only Spondilodiskitiste Radyolojik Görüntüleme Yöntemleri(2019-06-29T00:00:00Z) Yurtsever, İsmail; YURTSEVER, İSMAİL