Tıp Fakültesi / Faculty of Medicine

Permanent URI for this collectionhttps://hdl.handle.net/11727/1403

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Author: search.filters.author.Ozdemir, Adnan

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    Liver Stiffness Measurement Using Acoustic Radiation Force Impulse (ARFI) in Living And Deceased Donor Orthotopic Liver Transplantation Patients
    (2016) Haberal, Murat; Turnaoglu, Hale; Ozdemir, Adnan; Uslu, Nihal; Reyhan, Nihan Haberal; Moray, Gokhan; Haberal, Mehmet; https://orcid.org/0000-0002-8211-4065; https://orcid.org/0000-0002-0781-0036; https://orcid.org/0000-0003-0652-5396; https://orcid.org/0000-0002-6733-8669; https://orcid.org/0000-0001-9852-9911; https://orcid.org/0000-0003-2498-7287; https://orcid.org/0000-0002-3462-7632; R-9398-2019; AAK-8242-2021; AAH-9023-2020; ABC-5258-2020; AAK-4587-2021; AAE-1041-2021; AAJ-8097-2021
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    The Effectiveness of Computed Tomography-Guided Lumbar Epidural Steroid Injections for Spinal Pain Management: A Single Center Experience with 2-Year Follow-Up
    (2017) Harman, Ali; Duman, Enes; Ozdemir, Adnan; 0000-0002-7386-7110; 0000-0001-5221-1879; K-9824-2013; K-4333-2018
    Purpose: To determine the therapeutic value and long-term effects of Computed Tomography (CT)-guided translaminar and transforaminal lumbar epidural steroid injections for spinal pain management. Materials and methods: Between December 2011 and June 2013, 428 CT-guided epidural steroid injections of the lumbar spine for 310 patients were assessed retrospectively. There were 325 Translaminar (TL) (in 225 patients) and 103 Transforaminal (TF) (in 85 patients) injections performed. The clinical effectiveness of the injection after the therapy was assessed using Visual Analog Scale (VAS). The patients were classified into three groups (A-C) after injections according to the reduction in the VAS's. Results: Technical success rate of 100% without any major complication related to needle placement or drug administration. There were 27 (6.3%) reported minor complications (n: 3 orthostatic hypotension (0.7%) and n: 24 transient motor weaknesses of lower extremities (5.6%). The mean visual analog scores before and after the injections were recorded as 8.9 +/- 1.1 and 4.8 +/- 2.5 retrospectively (p 0.001). In 23 of 310 patients epidural injections were repeated in different times during study and 73 epidural injections (n: 61 TL and n: 12 TF) were performed. Conclusion: CT guided epidural injection in the lumbar spine is safe, repeatable and efficacious pain management technique. Both translaminar and transforaminal epidural steroid injections can provide reliable pain relief for up to average 5.5 and 5.6 months respectively.
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    Liver Stiffness Measurements Using Acoustic Radiation Force Impulse in Recipients of Living-Donor and Deceased-Donor Orthotopic Liver Transplant
    (2021) Haberal, Kemal Murat; Turnaoglu, Hale; Ozdemir, Adnan; Uslu, Nihal; Reyhan, Asuman Nihan Haberal; Moray, Gokhan; Haberal, Mehmet; 0000-0002-8211-4065; 0000-0002-3462-7632; 28836931; R-9398-2019; AAJ-8097-2021
    Objectives: The aim of this study was to evaluate the diagnostic efficiency of the acoustic radiation force impulse (Siemens Medical Solutions, Erlangen, Germany) elastography in assessment of fibrosis in orthotopic liver transplant patients. Materials and Methods: We enrolled 28 orthotopic liver transplant patients (5 deceased and 23 living donors), whose biopsy decision had been prospectively given clinically. Ten acoustic radiation force impulse elastographic measurements were applied before the biopsy or within 3 days after the biopsy by 2 radiologists. After the core tissue needle biopsy, specimens of all patients were analyzed according to the modified Ishak scoring system. Measurements of acoustic radiation force impulse elastography and pathology specimen results were compared. Results: From 28 biopsies, fibrosis scores of 4 biopsies were evaluated as F0 (14.3%), 16 as F1 (57.1%), 4 as F2 (14.3%), and 4 as F3 (14.3%). Mean results of acoustic radiation force impulse measurements were calculated as 1.4 +/- 0.07 in F0, 1.74 +/- 0.57 in F1, 2.19 +/- 0.7 in F2, and 2.18 +/- 0.35 in F3. There were no significant correlations of mean acoustic radiation force impulse values between the F0 versus F1 (P =.956) and F0 versus F2 stages (P =.234). A statistically significant correlation of mean acoustic radiation force impulse values was found between the F0 and F3 fibrosis stages (P =.046). Conclusions: Acoustic radiation force impulse imaging is a promising screening test for detecting significant liver fibrosis (>= F3 in modified Ishak) in living- donor or deceased-donor orthotopic liver transplant recipients.