Tınaztepe

Chief Physician Exp. Dr. Ahmet Çolak

Departments Radiology
Locations Tınaztepe Buca Medical Center

1993 : Ege University Faculty of Medicine, IZMIR

1999 - 2001 : SB Izmir Training and Research Hospital, IZMIR

2001 - : Buca Medical Center

Gastric Leiomyosarcoma (Case Report)

Gossypiboma (Case Report)

The Role of Thoracic Ultrasonography in the Differential Diagnosis of Lung Infections and Tumoral Lesions

The Relationship Between Lumbar Lordosis Angles Measured in Static and Dynamic Lumbosacral Vertebra Radiographs and Chronic Low Back Pain

Evaluation of Lung Changes in Rheumatoid Arthritis with High Resolution Computed Tomography

Congresses and Scientific Meetings  Attended:

Turkish Radiology Society Congress (between 1996 and 2011)

ECR 2005 - European Congress of Radiology

American College Congress Of Radiolgy 2008

American Society Congress of Neuroradiolgy 2010

International Congress of Pediatric Radiology 2011

European Society of Gastrointestinal Radiology 2007 and 2009

Gastrik Leiomyosarkom (Olgu Sunumu)

Gossipiboma (Olgu Sunumu)

Akciğer Enfeksiyonları ve Tümöral Lezyonlarının Ayırıcı Tanısında Toraks Ultrasonografisi’nin Yeri

Statik ve Dinamik Lumbosakral Vertebra Grafilerinde Ölçülen Lomber Lordoz Açıları İle Kronik Bel Ağrısı Arasındaki İlişki

Romatoid Artrit’te Akciğer Değişikliklerinin Yüksek Rezolüsyonlu Bilgisayarlı Tomografi İle Değerlendirilmesi

Katıldığım Kongre ve Bilimsel Toplantılar :    

Türk Radyoloji Derneği Kongresi (1996-2011 yılları arasında)

ECR 2005 - European Congress of Radiology

American Collage  Congress Of Radiolgy  2008

American Society Congress of Neuroradiolgy 2010

International Congress of Pediatric Radiology 2011

European Society of Gastrointestinal Radiology 2007 ve  2009

 

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Interventional treatment options in pseudoaneurysms: different techniques in different localizations


By

Sarioglu, O (Sarioglu, Orkun) [1] ; Capar, AE (Capar, Ahmet Ergin) [1] ; Belet, U (Belet, Umit) [1]

 (provided by Clarivate) 

Source

POLISH JOURNAL OF RADIOLOGY

Volume

84

Page

E319-E327

DOI

10.5114/pjr.2019.88021

Published

AUG 23 2019

Indexed

2019-09-30

Document Type

Review

Abstract

Pseudoaneurysms are commonly experienced vascular abnormalities. The increase in the number of surgical and arteriographic procedures has caused a higher prevalence of pseudoaneurysms. Conventional angiography is still the gold standard method for diagnosis, but other imaging modalities such as duplex Doppler ultrasonography, magnetic resonance angiography and computed tomographic angiography are useful in noninvasive detection. Over the past few years, interventional radiological treatment has evolved and taken the place of surgery in management. There are different kinds of percutaneous and endovascular treatment methods in pseudoaneurysm management. Treatment options depend on certain conditions. We used a case-based approach to discuss pseudoaneurysms and their appropriate treatment by interventional radiological methods in this article.

Keywords

Author Keywords

pseudoaneurysm endovascular procedure interventional radiology

 

The role of CT texture analysis in predicting the clinical outcomes of acute ischemic stroke patients undergoing mechanical thrombectomy


By

Sarioglu, O (Sarioglu, Orkun) [1] ; Sarioglu, FC (Sarioglu, Fatma Ceren) [2] ; Capar, AE (Capar, Ahmet Ergin) [1] ; Sokmez, DFB (Sokmez, Demet Funda Bas) [3] ; Topkaya, P (Topkaya, Pelin) [3] ; Belet, U (Belet, Umit) [1]

 (provided by Clarivate) 

Source

EUROPEAN RADIOLOGY

Volume

31

Issue

8

Page

6105-6115

DOI

10.1007/s00330-021-07720-4

Published

AUG 2021

Early Access

FEB 2021

Indexed

2021-03-05

Document Type

Article

Jump to

Abstract

Objectives To evaluate the performance of CT-based texture analysis (TA) for predicting clinical outcomes of mechanical thrombectomy (MT) in acute ischemic stroke (AIS). Methods This single-center, retrospective study contained 64 consecutive patients with AIS who underwent MT for large anterior circulation occlusion between December 2016 and January 2020. Patients were divided into 2 groups according to the modified Rankin scale (mRS) scores at 3 months as good outcome (mRS <= 2) and bad outcome (mRS > 2). Two observers examined the early ischemic changes for TA on baseline non-contrast CT images independently. Demographic, clinical, periprocedural, and texture variables were compared between the groups and ROC curves were made. Logistic regression analysis was used and a model was created to determine the independent predictors of a bad outcome. Results Sixty-four patients (32 female, 32 male; mean age 63.03 +/- 14.42) were included in the study. Fourteen texture parameters were significantly different between patients with good and bad outcomes. The long-run high gray-level emphasis (LRHGE), which is a gray-level run-length matrix (GLRLM) feature, showed the highest sensitivity (80%) and specificity (70%) rates to predict disability. The GLRLM_LRHGE value of > 4885.0 and the time from onset to puncture of > 237.5 mi were found as independent predictors of the bad outcome. The diagnostic rate was 80.0% when using the combination of the GLRLM_LRHGE and the time from onset to puncture cutoff values. Conclusion CT-based TA might be a promising modality to predict clinical outcome after MT in patients with AIS.

Keywords

Author Keywords

Stroke Thrombectomy Tomography Computer-assisted image analysis

 

Life-threatening Arterioureteral Fistula Between Iliac Vessel and Ureteral Stump: A Case Report


By

Özbilen, MH (Ozbilen, Mert Hamza) [1] ; Kisa, E (Kisa, Erdem) [1] ; Çapar, AE (Capar, Ahmet Ergin) [2] ; Ilbey, YO (Ilbey, Yusuf Ozlem) [3]

 (provided by Clarivate) 

Source

JOURNAL OF UROLOGICAL SURGERY

Volume

9

Issue

4

Page

302-305

DOI

10.4274/jus.galenos.2022.2021.0126

Published

DEC 2022

Indexed

2023-01-12

Document Type

Article

Abstract

Arterioureteral fistulas (AUFs) are a rare but life-threatening condition that cause massive hematuria. Radiation treatments, pelvic surgeries and chronic permanent ureteral stent use due to pelvic malignancies have been identified as the most important causes of AUFs. The number of cases in which arteriography and computed tomography angiography are insufficient and the pulsatile flow of the fistula can be observed only with ureterenoscopy is very rare in the literature. Here, we presented our 60-year-old patient with AUF, who has important risk factors such as pelvic surgery, radiotherapy and recurrent ureteral stent placement and whose pulsatile flow of the fistula was observed by ureteroscopy between the ureteral stump and iliac vessel

Keywords

Author Keywords

Arterioureteral fistula iliac vessel ureteral stump

 

The Relation of End-Tidal CO2 Values With Infarct Volume and Early Prognosis in Patients With Acute Ischemic Stroke


By

Eyler, Y (Eyler, Yesim) [1] ; Kilic, TY (Kilic, Turgay Yilmaz) [1] ; Atilla, OD (Atilla, Ozge Duman) [1] ; Arslan, Y (Arslan, Yildiz) [2] , [4] ; Capar, AE (Capar, Ahmet Ergin) [3] ; Idil, H (Idil, Hasan) [1] ; Suner, A (Suner, Asli) [5]

 (provided by Clarivate) 

Source

NEUROLOGIST

Volume

27

Issue

6

Page

309-312

DOI

10.1097/NRL.0000000000000418

Published

NOV 2022

Indexed

2022-11-15

Document Type

Article

Jump to

Abstract

Background: The aim of this study is to reveal the relationship between end-tidal CO2 (EtCO2) values with infarct volume and early prognosis in patients diagnosed with acute ischemic stroke in the emergency department. Materials and Methods: This prospective cross-sectional study was conducted in a tertiary hospital. The demographics, characteristics, EtCO2, volume of the stroke area on diffusion-weighted magnetic resonance imaging and the modified Rankin Scale (mRS) of the patients were recorded. The values calculated at admission and at discharge were labeled as "mRS-1" and "mRS-2," respectively, and the mRS-2 measurement was used as a prognostic indicator. The "good" and the "poor" functional outcomes were defined as mRS <= 2 and mRS >2, respectively. Correlations between levels of EtCO2 and infarct volume, mRS were calculated. Results: In total, 44 patients were included in the study. The median age of the patients was 69 years (interquartile range; 16; min-max: 35 to 88 y) and 68.2% of them were male. In the univariate logistic regression models of the mRS-2 [0 to 2 (0) and 3 to 6 (1)], all variables were not statistically significant to predict mRS-2 group. There were statistically significant differences in EtCO2 values between mRS-1 (P=0.03) and mRS-2 (P=0.04). A negative moderate correlation was found between EtCO2 and mRS-2 (r=-0.410; P=0.006). The correlation between EtCO2 and infarct volume was not statistically significant (r=-0.256; P=0.093). Conclusions: This study highlights the importance of capnography follow-up of patients with acute ischemic stroke. In patients with acute ischemic stroke, the EtCO2 value measured at the time of admission is lower in the group with high mRS at both admission and discharge.

Keywords

Author Keywords

acute stroke capnographyend-tidal CO2 hypocapnia prognosis

 

Relationship between the first pass effect and the platelet-lymphocyte ratio in acute ischemic stroke


By

Sarioglu, O (Sarioglu, Orkun) [1] ; Capar, AE (Capar, Ahmet Ergin) [1] ; Sokmez, DFB (Bas Sokmez, Demet Funda) [2] ; Topkaya, P (Topkaya, Pelin) [2] ; Belet, U (Belet, Umit) [1]

 (provided by Clarivate) 

Source

INTERVENTIONAL NEURORADIOLOGY

Volume

27

Issue

4

Page

523-530

DOI

10.1177/1591019920976251

Article Number

1591019920976251

Published

AUG 2021

Early Access

NOV 2020

Indexed

2021-02-23

Document Type

Article

Jump to

Abstract

Purpose: The aim of this study was to evaluate the relationship between platelet-lymphocyte ratio (PLR) and first pass effect (FPE) in patients with acute ischemic stroke (AIS). Our secondary goal was to investigate other laboratory, demographic or technical parameters that may be related to FPE and to search for independent predictors of FPE. Materials and methods: Patients who underwent mechanical thrombectomy (MT) in our hospital between January 2017 and February 2020 were reviewed. Patients were divided into two groups: FPE and non-FPE. Demographic features, laboratory parameters, pretreatment imaging and clinical features, angiographic and clinical outcomes were recorded and compared between the two groups. Logistic regression analysis was performed to analyze the independent predictors and a predictive model was produced for demonstrating the possibility to achieve FPE. Results: The study consisted of 83 patients (37 female, 46 male; mean age 62.69 similar to 15.16) who were treated by MT. FPE was achieved in 32 patients (32/83, 38.6%). PLR was higher in the non-FPE group (195.35 similar to 101.49) when compared to the FPE group (103.17 similar to 37.06). A PLR value of <126.3 and female sex were found as independent predictors of FPE. Our predictive model estimated the chance of FPE as 77.9% in female patients who had PLR values lower than 126.3 while it was 77.1% when only using the PLR cutoff value. Conclusions: High levels of PLR were associated with the failure of FPE. High values of PLR may be considered as a negative predictor for FPE achievement prior to MT in patients with AIS.

Keywords

Author Keywords

Ischemic stroke endovascular therapy platelet-lymphocyte ratio first pass effect

 

Relationship of arteriovenous fistula stenosis and thrombosis with the platelet-lymphocyte ratio in hemodialysis patients


By

Sarioglu, O (Sarioglu, Orkun) [1] ; Capar, AE (Capar, Ahmet Ergin) [1] ; Belet, U (Belet, Umit) [1]

 (provided by Clarivate) 

Source

JOURNAL OF VASCULAR ACCESS

Volume

21

Issue

5

Page

630-635

DOI

10.1177/1129729819894113

Article Number

1129729819894113

Published

SEP 2020

Early Access

DEC 2019

Indexed

2020-01-24

Document Type

Article

Jump to

Abstract

Background: The platelet-lymphocyte ratio, which was reported to have a strong relationship with chronic inflammation and thrombosis, is a useful biomarker. The purpose of this study was to evaluate the relationship between the platelet-lymphocyte ratio, arteriovenous stenosis, and thrombosis in patients with chronic renal failure. Methods: Patients who were referred to our interventional radiology department due to arteriovenous fistula dysfunction from dialysis units between August 2015 and December 2018 were retrospectively reviewed. In the study, 95 patients with arteriovenous fistula access problems were included. Patients were divided into two groups: stenosis (n = 52) and thrombosis (n = 43). Thirty-six subjects with a patent left radiocephalic arteriovenous fistula proven by both color Doppler ultrasonography and clinically were added to the control group. Blood samples were obtained on the same day before the fistulography. Results: Platelet counts, lymphocyte counts, and platelet-lymphocyte ratio were found to be significantly different between the three groups. After the Bonferroni post hoc analysis, there was a significant difference between the stenosis and control group (p = 0.017), and the thrombosis and control group (p < 0.001) in terms of the platelet-lymphocyte ratio. No significant difference for any parameter was found between stenosis and thrombosis group. Conclusion: High levels of the platelet-lymphocyte ratio may be a supportive finding of arteriovenous fistula stenosis and thrombosis and can be taken into consideration during hemodialysis-dependent patients' follow-up.

Keywords

Author Keywords

Arteriovenous fistula stenosis thrombosis platelet-lymphocyte ratio

 

A Management of Ureteral Obstruction After Lichtenstein Tension-Free Hernia Repair in a Kidney Transplant Recipient: A Case Report


By

Avci, EK (Avci, Emran Kuzey) [1] ; Capar, AE (Capar, Ahmet Ergin) [2] ; Tugmen, C (Tugmen, Cem) [3] ; Sert, I (Sert, Ismail) [3]

 (provided by Clarivate) 

Source

TRANSPLANTATION PROCEEDINGS

Volume

53

Issue

4

Page

1275-1278

DOI

10.1016/j.transproceed.2021.03.005

Published

MAY 2021

Early Access

MAY 2021

Indexed

2021-06-18

Document Type

Article

Jump to

Abstract

Background. The number of renal transplants has been increasing in recent years. Recent literature data show that abdominal operations performed on patients who undergo renal transplant have higher morbidity and mortality. Case Presentation. A 49-year-old man who had received a renal transplant from a living donor 19 years ago underwent Lichtenstein tension-free hernia repair. Anuria was observed after the operation. Renal ultrasound demonstrated massive hydronephrosis and an elevated serum creatinine level (4.6 mg/dL). It was thought that the ureter may have been obstructed because of the operation, and, with the patient under local anesthesia, all sutures and polypropylene mesh were removed. Urine output was still not present, so a percutaneous nephrostomy catheter was inserted to normalize renal function. The patient underwent reoperation under general anesthesia 45 hours after the first operation. It was observed that the ureter was ligated during high ligation. The ureter was released, and no additional intervention was performed. The patient was discharged 6 days later with a return to basal creatinine level and a percutaneous nephrostomy catheter. The patient was hospitalized twice for severe urinary tract infection and urosepsis within 3 months and received appropriate treatment. The patient has had an uneventful postoperative course for 18 months.

Discussion. Inguinal hernia repair is seen as a safe surgical procedure, but the risk of emerging urological complications is higher in patients with renal transplant. Imaging before surgery to identify the anatomy of the kidney and ureter may be useful. Delicate dissection of the extraperitoneal area during the operation will reduce surgical complications.

Keywords

Keywords Plus

INGUINAL-HERNIA RENAL-FAILURE SURVIVAL  IMPACT

 

Angiographic Findings and Outcomes of Bronchial Artery Embolization in Patients with Pulmonary Tuberculosis


By

Sarioglu, O (Sarioglu, Orkun) [1] ; Capar, AE (Capar, Ahmet Ergin) [1] ; Yavuz, MY (Yavuz, Melike Yuksel) [2] ; Belet, U (Belet, Umit) [1]

 (provided by Clarivate) 

Source

EURASIAN JOURNAL OF MEDICINE

Volume

52

Issue

2

Page

126-131

DOI

10.5152/eurasianjmed.2020.19221

Published

JUN 2020

Indexed

2020-07-07

Document Type

Article

Abstract

Objective: We aimed to evaluate the angiographic findings and outcomes of bronchial artery embolization in tuberculosis patients and to compare them with those of non-tuberculosis patients.

Materials and Methods: Patients who underwent bronchial artery embolization in a single interventional radiology department with hemoptysis were reviewed. A total of 89 patients (66 males and 23 females; mean age 52.71 +/- 15.37) were incorporated in the study. The patients were divided into two groups: tuberculosis group (n=36) and non-tuberculosis group (16 malignancy, 22 bronchiectasis, 6 pulmonary infection, 5 chronic obstructive pulmonary disease, 4 idiopathic; n=53). Angiography and embolization procedure were performed by interventional radiologists with 5, 10, and 20 years of experience. Angiographic findings were classified as tortuosity, hypertrophy, hypervascularity, aneurysm, bronchopulmonary shunt, extravasation, and normal bronchial artery. Chi-square test was used to compare angiographic findings between tuberculosis and non-tuberculosis patient groups.

Results: Bronchopulmonary shunt was found to be significantly higher in the tuberculosis group as compared to that in the non-tuberculosis group (p=0.002). Neither of the groups showed a statistically significant difference with respect to recurrence (p=0.436).

Conclusion: Bronchial artery embolization is a useful and effective treatment method of hemoptysis in tuberculosis. Evaluation of bronchopulmonary shunts in patients with tuberculosis is critical for the reduction of catastrophic complications.

Keywords

Author Keywords

Embolization digital subtraction angiography hemoptysis treatment outcome

 

Bronchial Artery Embolization Due to Hemoptysis; is it Really Effective?


By

Güldaval, F (Guldaval, Filiz) [1] ; Anar, C (Anar, Ceyda) [1] ; Polat, G (Polat, Gulru) [1] ; Yavuz, MY (Yavuz, Melike Yuksel) [1] ; Çapar, AE (Capar, Ahmet Ergin) [2] ; Büyüksirin, M (Buyuksirin, Melih) [1] ; Üçsular, FD (Ucsular, Fatma Demirci) [1]

 (provided by Clarivate) 

Source

ERCIYES MEDICAL JOURNAL

Volume

43

Issue

3

Page

288-292

DOI

10.14744/etd.2020.93271

Published

MAR 2021

Indexed

2021-06-01

Document Type

Article

Jump to

Abstract

Objective: We aimed to evaluate retrospectively the data of patients undergoing bronchial artery embolization (BAE) for massive or non-massive hemoptysis in our clinic and discussed with the literature.

Materials and Methods: We retrospectively evaluated patients with acute severe or chronic recurrent hemoptysis admitted to the pulmonology department and submitted to BAE for the purpose of embolization.

Results: A total of 52 patients were submitted to BAE, 41 (78.8%) were male, with a mean age 53.7 +/- 14.8 years. Hemoptysis was considered severe in 22 (42.3%) patients. Bronchiectasis (other than cystic fibrosis) (n=12; 23.1%) and tuberculosis (TB) sequelae (n=11; 21.2) were the major etiology for hemoptysis. None of our patients developed early or late complications related to the procedure. Hemoptysis recurred in five patients at 12-month follow-up of each patient. There was no significant difference between the amount of hemoptysis and the presence of lesion on computed tomography, active bleeding on bronchoscopy or recurrence.

Conclusion: Bronchiectasis (except those associated with cystic fibrosis), TB, and TB sequelae were the major etiologies for hemoptysis. Our results show that BAE is a safe and effective treatment supporting the current literature for acute massive and chronic recurrent hemoptysis.

Keywords

Author Keywords

Bronchial artery embolization hemoptysis pulmonary

 

Renal artery pseudoaneurysm after open partial nephrectomy for renal cell carcinoma


By

Kisa, E (Kisa, Erdem) [1] ; Koc, G (Koc, Gokhan) [1] ; Yucel, C (Yucel, Cem) [1] ; Keskin, MZ (Keskin, Mehmet Zeynel) [1] ; Capar, AE (Capar, Ahmet Ergin) [1] ; Kozacioglu, Z (Kozacioglu, Zafer) [1]

 (provided by Clarivate) 

Source

UROLOGIA JOURNAL

Volume

87

Issue

1

Page

11-14

DOI

10.1177/0391560319862250

Article Number

0391560319862250

Published

FEB 2020

Early Access

JUL 2019

Indexed

2019-08-02

Document Type

Review

Abstract

Introduction: Renal artery pseudoaneurysm is a well-described complication of open and laparoscopic partial nephrectomy. Delayed bleeding from a renal artery pseudoaneurysm is rare after open partial nephrectomy. Case description: Here, we present a 75-year-old man who, 14 days after undergoing an open right partial nephrectomy for an endophytic 4.5 cm tumor, developed painless macroscopic hematuria. Prompt computer tomography angiography imaging, followed by therapeutic angio-embolization of segmental renal artery with coils, treated the pseudoaneurysm successfully. Conclusion: Renal artery pseudoaneurysm can be treated rapidly, effectively, and with minimal patient morbidity via percutaneous renal artery embolization.

Keywords

Author Keywords

Pseudoaneurysm open partial nephrectomy embolization

Turkish Radiology Association

Turkish Magnetic Resonance Association

Medical Ultrasonography Association

             

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