Assoc. Prof. Emrah ÇELTİKÇİ

1: Inan MA, Urganci M, Simsek B, Coskun M, Sahin M, Celtikci E, Poyraz A.

Differential expression of PTEN, pAKT1, pRPS6, and mismatch repair proteins in

pituitary neuroendocrine tumors. Virchows Arch. 2025 Jul 16. doi:

10.1007/s00428-025-04176-5. Epub ahead of print. PMID: 40665163.

2: Sagiroglu S, Terzi R, Celtikci E, Börcek AÖ, Atay Y, Arslan B, Sahin MC,

Nernekli K, Demirezen U, Ozdemir OB, Özdem Karaca K, Azgınoğlu N. A novel brain

tumor magnetic resonance imaging dataset (Gazi Brains 2020): initial benchmark

results and comprehensive analysis. PeerJ Comput Sci. 2025 Jun 10;11:e2920. doi:

10.7717/peerj-cs.2920. PMID: 40567687; PMCID: PMC12192951.

3: Sozer A, Sahin MC, Sozer B, Erol G, Tufek OY, Nernekli K, Demirtas Z,

Celtikci E. Do LLMs Have 'the Eye' for MRI? Evaluating GPT-4o, Grok, and Gemini

on Brain MRI Performance: First Evaluation of Grok in Medical Imaging and a

Comparative Analysis. Diagnostics (Basel). 2025 May 24;15(11):1320. doi:

10.3390/diagnostics15111320. PMID: 40506892; PMCID: PMC12154409.

4: Sahin MC, Yilmaz Sukranli Z, Sozer A, Tufek OY, Buke Sahin M, Karaaslan B,

Celtikci E, Rassoulzadegan M, Taheri S, Emmez H. LncRNA TERRA in hybrid with DNA

is a relevant biomarker for monitoring patients with meningioma. Sci Rep. 2025

Mar 15;15(1):9011. doi: 10.1038/s41598-025-90439-9. PMID: 40089523; PMCID:

PMC11910642.

5: Karımzada G, Evleksiz Karımzada D, Erol G, Celtikci E, Temiz NÇ, Kutlay AM,

İzci Y, Jean WC, Güngör A. Expanding horizons: the feasibility and challenges of

tubular retraction in endoscopic transorbital skull base approaches. Surg Radiol

Anat. 2025 Mar 11;47(1):96. doi: 10.1007/s00276-025-03592-1. PMID: 40067392.

6: Egemen E, Dere UA, Celtikci E, Nehir A, Dogruel Y, Sahinoglu D, Asar R,

Bakirarar B, Albuz B, Coskun ME, Yakar F. Nonacute Subdural Hematoma Evacuation

Using a Rigid Endoscopy System: A Clinical Study. Turk Neurosurg.

2024;34(6):1102-1109. doi: 10.5137/1019-5149.JTN.46194-23.2. PMID: 39474966.

7: Sahin MC, Tufek OY, Sozer A, Cindil E, Sahin MM, Celtikci E. Outcomes

following endoscopic endonasal resection of craniopharyngiomas using

intraoperative magnetic resonance imaging: Case series. Asian J Surg. 2024 Oct

15:S1015-9584(24)02268-1. doi: 10.1016/j.asjsur.2024.09.198. Epub ahead of

print. PMID: 39414503.

8: Bozkurt OF, Kuzucu P, Sahin MM, Celtikci E. Cavernous hemangioma within the

cavernous sinus: illustrative case. J Neurosurg Case Lessons. 2024 Sep

2;8(10):CASE24227. doi: 10.3171/CASE24227. PMID: 39222542; PMCID: PMC11373689.

9: Gousias K, Hoyer A, Mazurczyk LA, Bartek J Jr, Bruneau M, Celtikci E,

Foroglou N, Freyschlag C, Grossman R, Jungk C, Metellus P, Netuka D, Rola R,

Schucht P, Senft C, Signorelli F, Vincent AJPE, Simon M; EANS Surgical Neuro-

oncology Expertise Survey working group. Expertise in surgical neuro-oncology.

Results of a survey by the EANS neuro-oncology section. Brain Spine. 2024 May

7;4:102822. doi: 10.1016/j.bas.2024.102822. PMID: 38831935; PMCID: PMC11145419.

10: Nernekli K, Persad AR, Hori YS, Yener U, Celtikci E, Sahin MC, Sozer A,

Sozer B, Park DJ, Chang SD. Automatic Segmentation of Vestibular Schwannomas: A

Systematic Review. World Neurosurg. 2024 Aug;188:35-44. doi:

10.1016/j.wneu.2024.04.145. Epub 2024 Apr 27. PMID: 38685346.

11: Karımzada G, Evleksiz Karımzada D, Erol G, Gülsuna B, Kuzucu P, Güngör A,

Kutlay AM, Şahin MM, Çeltikçi E. Transorbital neuroendoscopic surgery for

treatment of sphenoid wing meningiomas extending to the cavernous sinus:

clinical implications and a technical illustration. Neurosurg Focus. 2024

Apr;56(4):E8. doi: 10.3171/2024.1.FOCUS23857. PMID: 38560930.

12: Gulsuna B, Erol G, Tüfek OY, Truong HQ, Aksoğan Y, Nehir A, Sahin MM,

Celtikci E. Endoscopic Endonasal Approach to the Orbit: A Case Series and

Clinical Experience Emphasizing the Advantages of the Ipsilateral Mononostril

Technique. World Neurosurg. 2024 Jun;186:e273-e282. doi:

10.1016/j.wneu.2024.03.122. Epub 2024 Mar 27. PMID: 38548053.

13: Sahin MC, Sozer A, Kuzucu P, Turkmen T, Sahin MB, Sozer E, Tufek OY,

Nernekli K, Emmez H, Celtikci E. Beyond human in neurosurgical exams: ChatGPT's

success in the Turkish neurosurgical society proficiency board exams. Comput

Biol Med. 2024 Feb;169:107807. doi: 10.1016/j.compbiomed.2023.107807. Epub 2023

Dec 10. PMID: 38091727.

14: Sahin MC, Bozkurt OF, Sahin MM, Celtikci E. Cavernous Sinus capillary

hemangioma: Case report and literature review. Brain Spine. 2023 Jul 1;3:101776.

doi: 10.1016/j.bas.2023.101776. PMID: 38021022; PMCID: PMC10668058.

15: Ozturk O, Cındıl E, Emmez H, Kuzucu P, Celtıkcı E. Spontaneous improvement

in syringomyelia in a patient with Chiari 1 malformation: illustrative case. J

Neurosurg Case Lessons. 2023 Jul 17;6(3):CASE23210. doi: 10.3171/CASE23210.

PMID: 37486887; PMCID: PMC10555572.

16: Sozer A, Borcek AO, Sagiroglu S, Poshtkouh A, Demirtas Z, Karaaslan MM,

Kuzucu P, Celtikci E. The first case of glioma detected by an artificial

intelligence algorithm running on real-time data in neurosurgery: illustrative

case. J Neurosurg Case Lessons. 2023 May 8;5(19):CASE22536. doi:

10.3171/CASE22536. PMID: 37158388; PMCID: PMC10550689.

17: Sütcüoğlu O, Erdal ZS, Akdoğan O, Çeltikçi E, Özdemir N, Özet A, Uçar M,

Yazıcı O. The possible relation between temporal muscle mass and glioblastoma

multiforme prognosis via sarcopenia perspective. Turk J Med Sci. 2023

Feb;53(1):413-419. doi: 10.55730/1300-0144.5599. Epub 2023 Feb 22. PMID:

36945944; PMCID: PMC10388072.

18: Kuzucu P, Çeltikçi P, Demirtaş OK, Canbolat Ç, Çeltikçi E, Demirci H, Özışık

P, Tubbs RS, Pamir MN, Güngör A. Arterial Supply of the Basal Ganglia: A Fiber

Dissection Study. Oper Neurosurg. 2023 May 1;24(5):e351-e359. doi:

10.1227/ons.0000000000000612. Epub 2023 Jan 16. PMID: 36719962.

19: Saleh S, Sullivan SE, Bellile E, Roxbury C, Das P, Hachem RA, Ackall F, Jang

D, Celtikci E, Sahin MM, D'souza G, Evans JJ, Nyquist G, Khalafallah A,

Mukherjee D, Rowan NR, Camp S, Choby G, Gompel JJV, Ghiam MK, Levine CG, Field

M, Adappa N, Locke TB, Rassekh C, Sweis AM, Goyal N, Zacharia B, Wilson MN,

Patel S, Gardner PA, Snyderman CH, Wang EW, Glancz LJ, Bagchi A, Dow G,

Robertson I, Rangarajan SV, Michael LM 2nd, McKean EL. Retrospective Review of

Surgical Site Infections after Endoscopic Endonasal Sellar and Parasellar

Surgery: Multicenter Quality Data from the North American Skull Base Society. J

Neurol Surg B Skull Base. 2022 Aug 25;83(6):579-588. doi: 10.1055/a-1865-3202.

PMID: 36393885; PMCID: PMC9653291.

20: Kahilogullari G, Bayatli E, Geyik M, Cabuk B, Beton S, Gunaldi O, Tanrıverdi

O, Cetinalp NE, Tarkan O, Yıldırım AE, Guner YE, Nehir A, Goksu E, Akyuz M,

Isikay İ, Duz B, Celtikci E, Kertmen H, Köktekir E, Camlar M, Bahçecioğlu Mutlu

AB, Cansız Ersoz C, Bozdag SC, Berker M, Ceylan S. Endonasal endoscopic approach

for sellar metastatic pathologies: a national observation. Br J Neurosurg. 2023

Apr;37(2):206-212. doi: 10.1080/02688697.2022.2077310. Epub 2022 May 18. PMID:

35582922.

21: Demirtaş OK, Güngör A, Çeltikçi P, Çeltikçi E, Munoz-Gualan AP, Doğulu FH,

Türe U. Microsurgical anatomy and insular connectivity of the cerebral opercula.

J Neurosurg. 2022 Mar 18;137(5):1509-1523. doi: 10.3171/2021.12.JNS212297. PMID:

35303697.

22: Gulsuna B, Karaaslan B, Kaymaz M, Emmez H, Cindil E, Sahin MM, Celtikci E.

Intraoperative Magnetic Resonance Imaging Assisted Endoscopic Endonasal

Resection of Clival Chordomas. Front Oncol. 2022 Jan 10;11:733088. doi:

10.3389/fonc.2021.733088. PMID: 35083136; PMCID: PMC8784729.

23: Kuzucu P, Celtikci P, Celtikci E, Kaymaz AM, Akbas A, Baydin S, Eksi MS,

Pamir MN, Gungor A. Microsurgical and White Matter Anatomy of the Hypothalamus:

A Fiber Dissection Study Correlating With Magnetic Resonance Tractography. Oper

Neurosurg. 2021 Sep 15;21(4):E309-E320. doi: 10.1093/ons/opab242. PMID:

35006657.

24: Hanalioglu S, Bahadir S, Isikay I, Celtikci P, Celtikci E, Yeh FC, Oguz KK,

Khaniyev T. Group-Level Ranking-Based Hubness Analysis of Human Brain Connectome

Reveals Significant Interhemispheric Asymmetry and Intraparcel Heterogeneities.

Front Neurosci. 2021 Dec 21;15:782995. doi: 10.3389/fnins.2021.782995. PMID:

34992517; PMCID: PMC8724127.

25: Celtikci E, Sahin MM, Sahin MC, Cindil E, Demirtaş Z, Emmez H. Do We Need

Intraoperative Magnetic Resonance Imaging in All Endoscopic Endonasal Pituitary

Adenoma Surgery Cases? A Retrospective Study. Front Oncol. 2021 Oct 1;11:733838.

doi: 10.3389/fonc.2021.733838. PMID: 34660296; PMCID: PMC8517430.

26: Karaaslan B, Gülsuna B, Erol G, Dağli Ö, Emmez H, Kurt G, Çeltikçi E, Börcek

AÖ. Stereotactic radiosurgery for cerebral cavernous malformation: comparison of

hemorrhage rates before and after stereotactic radiosurgery. J Neurosurg. 2021

Aug 27;136(3):655-661. doi: 10.3171/2021.2.JNS21138. PMID: 34450585.

27: Emmez H, Aslan A, Demirci H, Çeltikçi E, Kaymaz AM, Börcek AÖ. The

unilateral frontotemporal approach for large and giant olfactory groove

meningioma: Experience with 18 consecutive patients. Neurochirurgie. 2022

Jan;68(1):36-43. doi: 10.1016/j.neuchi.2021.04.023. Epub 2021 May 26. PMID:

34051249.

28: Karaaslan B, Celtikci E, Bulduk EB, Borcek AO, Kurt G, Kaymaz M, Aykol S,

Emmez H. Stereotactic Radiosurgery after Subtotal Resection of Critically-

Located Grade I Meningioma: A Single-Center Experience and Review of Literature.

Turk Neurosurg. 2021;31(4):519-529. doi: 10.5137/1019-5149.JTN.30181-20.2. PMID:

33978200.

29: Ceıtikci E, Nunez M, Liu JK, Gardner PA, Cohen-Gadol AA, Fernandez-Miranda

JC. Interhemispheric Precuneus Retrosplenial Transfalcine Approach for

Falcotentorial Meningiomas: Anatomic Study and Clinical Series. Oper Neurosurg.

2021 Jul 15;21(2):48-56. doi: 10.1093/ons/opab095. PMID: 33930163.

30: Cindil E, Sendur HN, Cerit MN, Erdogan N, Celebi F, Dag N, Celtikci E, Inan

A, Oner Y, Tali T. Prediction of IDH Mutation Status in High-grade Gliomas Using

DWI and High T1-weight DSC-MRI. Acad Radiol. 2022 Mar;29 Suppl 3:S52-S62. doi:

10.1016/j.acra.2021.02.002. Epub 2021 Mar 6. PMID: 33685792.

31: Celtikci E, Karaaslan B, Börcek AÖ, Emmez OH. Reduced field of view under

the surgical microscope due to personal protective equipment: lessons learned

during the COVID-19 pandemic. Neurosurg Focus. 2020 Dec;49(6):E15. doi:

10.3171/2020.9.FOCUS20370. PMID: 33260123.

32: Yakar F, Egemen E, Dere UA, Celtikci E, Dogruel Y, Sahinoglu D, Cuneyit I,

Bakirarar B, Adiguzel E, Coskun E. Subdural Hematoma Evacuation via Rigid

Endoscopy System: A Cadaveric Study. J Craniofac Surg. 2021 Jul-Aug

01;32(5):e402-e405. doi: 10.1097/SCS.0000000000007031. PMID: 32956319.

33: Duman EA, Sagiroglu S, Celtikci P, Demirezen MU, Borcek AO, Emmez H,

Celtikci E. Utilizing Deep Convolutional Generative Adversarial Networks for

Automatic Segmentation of Gliomas: An Artificial Intelligence Study. Turk

Neurosurg. 2022;32(1):16-21. doi: 10.5137/1019-5149.JTN.29217-20.2. PMID:

34542897.

34: Gulsuna B, Turkmen T, Borcek AO, Celtikci E. Fluorescein-guided excision of

a pediatric intraparenchymal schwannoma presenting with seizure and neurogenic

pulmonary edema. Childs Nerv Syst. 2020 May;36(5):1075-1078. doi:

10.1007/s00381-019-04438-z. Epub 2019 Nov 30. PMID: 31786630.

35: Atici MA, Sagiroglu S, Celtikci P, Ucar M, Borcek AO, Emmez H, Celtikci E. A

Novel Deep Learning Algorithm for the Automatic Detection of High-Grade Gliomas

on T2-Weighted Magnetic Resonance Images: A Preliminary Machine Learning Study.

Turk Neurosurg. 2020;30(2):199-205. doi: 10.5137/1019-5149.JTN.27106-19.2. PMID:

31608975.

36: Börcek AÖ, Çeltikçi E, Aksoğan Y, Rousseau MJ. Clinical Outcomes of

Stereotactic Radiosurgery for Cerebral Arteriovenous Malformations in Pediatric

Patients: Systematic Review and Meta-Analysis. Neurosurgery. 2019 Oct

1;85(4):E629-E640. doi: 10.1093/neuros/nyz146. PMID: 31131849.

37: Borghei-Razavi H, Truong HQ, Fernandes Cabral DT, Sun X, Celtikci E, Wang E,

Snyderman C, Gardner PA, Fernandez-Miranda JC. Endoscopic Endonasal

Petrosectomy: Anatomical Investigation, Limitations, and Surgical Relevance.

Oper Neurosurg. 2019 May 1;16(5):557-570. doi: 10.1093/ons/opy195. PMID:

30982905.

38: Celtikci E, Yakar F, Celtikci P, Izci Y. Relationship between individual

payload weight and spondylolysis incidence in Turkish land forces. Neurosurg

Focus. 2018 Dec 1;45(6):E12. doi: 10.3171/2018.8.FOCUS18375. PMID: 30544316.

39: Yakar F, Celtikci E, Ozgural O, Eroglu U, Caglar YS. Osteogenesis Imperfecta

and Extra-/Intradural Hematomas: A Case Report and Review of the Literature. J

Pediatr Genet. 2018 Dec;7(4):185-190. doi: 10.1055/s-0038-1660826. Epub 2018 Jun

14. PMID: 30430037; PMCID: PMC6234040.

40: Truong HQ, Najera E, Zanabria-Ortiz R, Celtikci E, Sun X, Borghei-Razavi H,

Gardner PA, Fernandez-Miranda JC. Surgical anatomy of the superior hypophyseal

artery and its relevance for endoscopic endonasal surgery. J Neurosurg. 2019 Jul

1;131(1):154-162. doi: 10.3171/2018.2.JNS172959. Epub 2018 Jul 13. PMID:

30004277.

41: Truong HQ, Sun X, Celtikci E, Borghei-Razavi H, Wang EW, Snyderman CH,

Gardner PA, Fernandez-Miranda JC. Endoscopic anterior transmaxillary

"transalisphenoid" approach to Meckel's cave and the middle cranial fossa: an

anatomical study and clinical application. J Neurosurg. 2019 Jan

1;130(1):227-237. doi: 10.3171/2017.8.JNS171308. Epub 2018 Feb 2. PMID:

29393751.

42: Borghei-Razavi H, Truong HQ, Fernandes-Cabral DT, Celtikci E, Chabot JD,

Stefko ST, Wang EW, Snyderman CH, Cohen-Gadol A, Gardner PA, Fernández-Miranda

JC. Minimally Invasive Approaches for Anterior Skull Base Meningiomas:

Supraorbital Eyebrow, Endoscopic Endonasal, or a Combination of Both? Anatomic

Study, Limitations, and Surgical Application. World Neurosurg. 2018

Apr;112:e666-e674. doi: 10.1016/j.wneu.2018.01.119. Epub 2018 Feb 19. PMID:

29378344.

43: Panesar SS, Yeh FC, Deibert CP, Fernandes-Cabral D, Rowthu V, Celtikci P,

Celtikci E, Hula WD, Pathak S, Fernández-Miranda JC. A diffusion spectrum

imaging-based tractographic study into the anatomical subdivision and cortical

connectivity of the ventral external capsule: uncinate and inferior fronto-

occipital fascicles. Neuroradiology. 2017 Oct;59(10):971-987. doi:

10.1007/s00234-017-1874-3. Epub 2017 Jul 18. PMID: 28721443.

44: Celtikci P, Celtikci E, Emmez H, Ucar M, Börcek AÖ. Utilization of Bone Wax

as a Marker for Spatial Orientation in Intraoperative Magnetic Resonance

Imaging. Clin Neuroradiol. 2018 Mar;28(1):117-121. doi:

10.1007/s00062-017-0595-7. Epub 2017 May 16. PMID: 28509935.

45: Celtikci E. A Systematic Review on Machine Learning in Neurosurgery: The

Future of Decision-Making in Patient Care. Turk Neurosurg. 2018;28(2):167-173.

doi: 10.5137/1019-5149.JTN.20059-17.1. PMID: 28481395.

46: Fernandes-Cabral DT, Kooshkabadi A, Panesar SS, Celtikci E, Borghei-Razavi

H, Celtikci P, Fernandez-Miranda JC. Surgical Management of Vertex Epidural

Hematoma: Technical Case Report and Literature Review. World Neurosurg. 2017

Jul;103:475-483. doi: 10.1016/j.wneu.2017.04.040. Epub 2017 Apr 17. PMID:

28427975.

47: Celtikci E, Celtikci P, Fernandes-Cabral DT, Ucar M, Fernandez-Miranda JC,

Borcek AO. High-Definition Fiber Tractography in Evaluation and Surgical

Planning of Thalamopeduncular Pilocytic Astrocytomas in Pediatric Population:

Case Series and Review of Literature. World Neurosurg. 2017 Feb;98:463-469. doi:

10.1016/j.wneu.2016.11.061. Epub 2016 Nov 22. PMID: 27888085.

48: Celtikci E. In Reply: Pharmacological Venous Thromboembolism Prophylaxis in

Meningioma Patients: Should it be Earlier than in Clinical Practice? Turk

Neurosurg. 2018;28(1):166. doi: 10.5137/1019-5149.JTN.19032-16.0. PMID:

27858391.

49: Celtikci E, Kaymaz AM, Akgul G, Karaaslan B, Emmez OH, Borcek A.

Retrospective Analysis of 449 Intracranial Meningioma Patients Operated Between

2007 and 2013 at a Single Institute. Turk Neurosurg. 2018;28(1):1-6. doi:

10.5137/1019-5149.JTN.17866-16.1. PMID: 27593846.

50: Akkan K, Ucar M, Kilic K, Celtikci E, Ilgit E, Onal B. Unfused or twig-like

middle cerebral artery. Eur J Radiol. 2015 Oct;84(10):2013-8. doi:

10.1016/j.ejrad.2015.06.012. Epub 2015 Jun 18. PMID: 26123843.

51: Kurt G, Tönge M, Çeltıkçı E, Çapraz I, Serdaroğlu A, Bılır E. Surgery for

intractable temporal lobe epilepsy: experience of a single institution. Turk J

Med Sci. 2014;44(5):866-70. doi: 10.3906/sag-1307-30. PMID: 25539559.

52: Kurt G, Yildirim Z, Cemil B, Celtikci E, Kaplanoglu GT. Effects of curcumin

on acute spinal cord ischemia-reperfusion injury in rabbits. Laboratory

investigation. J Neurosurg Spine. 2014 Apr;20(4):464-70. doi:

10.3171/2013.12.SPINE1312. Epub 2014 Jan 24. PMID: 24460581.

53: Cemil B, Kurt G, Erdogan B, Dogulu F, Tun K, Kirar F, Celtikci E, Ceviker N.

Does the third cervical vertebra need to be rimmed for odontoid screwing? A

hypothetical study of anatomic landmarks. J Neurol Surg A Cent Eur Neurosurg.

2012 May;73(3):142-6. doi: 10.1055/s-0032-1313721. Epub 2012 May 3. PMID:

22271380.