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Dive into the research topics where Evren Ustuner is active.

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Featured researches published by Evren Ustuner.


Clinical Imaging | 2001

Frontal sinus mucocele A rare complication of craniofacial fibrous dysplasia

Çetin Atasoy; Evren Ustuner; İlhan Erden; Serdar Akyar

We present plain radiographic, computed tomographic and magnetic resonance imaging (MRI) findings in a 25-year-old female patient with craniofacial fibrous dysplasia (FD). Although FD has a tendency to involve craniofacial bones in a unilateral fashion, the involvement was bilateral and extensive in this case. An additional feature was the presence of a frontal sinus mucocele, presumably due to the involvement of the sinus recess by the dysplastic process. This complication of the craniofacial FD has been reported very infrequently in the literature.


Diagnostic and interventional radiology | 2012

Common extensor tendon thickness measurements at the radiocapitellar region in diagnosis of lateral elbow tendinopathy

Uğur Toprak; Bedriye Mermerci Başkan; Evren Ustuner; Erol Oten; Levent Altın; Mehmet Alp Karademir; Hatice Bodur

PURPOSE The aim of this study was to determine the value of measuring common extensor tendon (CET) thickness at the radiocapitellar and capitellar regions with qualitative ultrasonographic findings in the diagnosis of lateral elbow tendinopathy. MATERIALS AND METHODS The study included 164 lateral elbow tendinopathy patients (84 bilateral, 80 unilateral) matched by age, gender, and body mass index with 80 normal subjects. CET was examined using gray-scale and Doppler ultrasonography for tendinopathy, and tendon thickness was measured at two landmark locations: capitellar and radiocapitellar. RESULTS In tendinopathy, tendon thickness including the dominant capitellar region, increased in every measured location. In the capitellar region of the dominant elbow, the cut-off thickness was 5.15 mm, and in the radiocapitellar region, this value was 4.05 mm. For the non-dominant elbow, the cut-off thickness was 4.61 mm, whereas in the radiocapitellar region, this value was 3.51 mm. The greatest risk of tendinopathy was at the radiocapitellar region on the dominant side. The overall sensitivity and specificity of gray-scale findings were 54% and 88%, respectively, and the addition of Doppler readings did not alter these values. When capitellar measurements were added, the values increased to 79% and 80% for sensitivity and specificity, respectively. These values further increased to 93% and 91%, respectively, when radiocapitellar measurements were included. CONCLUSION A second tendon thickness measurement at the radiocapitellar region of CET in addition to the capitellar region is recommended on the grounds that combined qualitative and quantitative evaluation of CET increases the diagnostic per- formance of ultrasonography in lateral elbow tendinopathy.


Laryngoscope | 2010

A computational study on the characteristics of airflow in bilateral abductor vocal fold immobility

M. Kürşat Gökcan; D. Funda Kurtulus; Evren Ustuner; Elif Özyürek; G. Gökçen Kesici; S. Ceyhan Erdem; Gursel Dursun; Cemil Yagci

To evaluate airway sufficiency and airflow dynamics in a group of patients who underwent a posterior transverse laser cordotomy (PTLC) procedure.


Korean Journal of Radiology | 2008

Endovascular Stent-Graft Treatment of a Traumatic Vertebral Artery Pseudoaneurysm and Vertebrojugular Fistula

Tanzer Sancak; Sadik Bilgic; Evren Ustuner

An endovascular intervention is a feasible alternative to the technically challenging conventional surgery for the treatment of traumatic vertebral arterial lesions. This report describes a rare case involving a 22-year-old patient with a traumatic vertebral arterial pseudoaneurysm and multiple arteriovenous fistulas which were successfully sealed using the endovascular stent-graft technique.


Abdominal Imaging | 2003

Retrorectal dermoid cyst in a male adult: case report.

Ayşe Erden; Evren Ustuner; İlhan Erden; M. A. Kuzu; A. O. Heper

We describe a 48-year-old male patient who presented with rectal fullness and pain. Magnetic resonance imaging (MRI) and computed tomographic studies revealed a noncalcified, unilocular, cystic mass lesion with well-defined borders. On MRI nondependent fat spheres were detected inside the cyst. The same pattern has been described in dermoid cyst of the ovary. We suggest that this MRI pattern is specific to dermoid cysts.


The Breast | 2011

Is there an association between mastalgia and fibromyalgia? Comparing prevalence and symptom severity.

Volkan Genç; Aysun Genç; Evren Ustuner; Ebru Düşünceli; Derya Öztuna; Sancar Bayar; Yesim Kurtais

To determine the prevalence of mastalgia in patients with fibromyalgia (FM) and the prevalence of FM in patients with mastalgia in order to investigate coexistence, and to compare the pain patterns in the case of mastalgia or FM alone versus the two in combination. Fifty consecutive patients with mastalgia and 50 consecutive patients with FM were assessed and examined both for the existence and severity of mastalgia and FM. A high proportion of patients with mastalgia (36%) fulfilled the criteria for FM and 42% had mastalgia in the FM group. Two distinctive entities mastalgia and FM, being both unexplained pain syndromes, seem to frequently coexist. Patients with mastalgia or FM should be thoroughly questioned considering each of the diseases so that in case of coexistence an appropriate therapy might be implemented for a successful pain management.


CardioVascular and Interventional Radiology | 2007

Right Cervical Aortic Arch and Pseudocoarctation of the Aorta Associated with Aneurysms and Steal Phenomena: US, CTA, and MRA Findings

Sumru Tanju; Evren Ustuner; İlhan Erden; Suat Aytaç

A 55-year-old woman presented with right cervical aortic arch with pseudocoarctation of the aorta further complicated by the presence of multiple aneurysms and a high-grade stenosis at the origin of the left subclavian trunk from the aorta causing a discrepancy in blood pressure between the right and left arms. The branching pattern and the resulting complex steal syndromes involving the left carotid and the subclavian system are unique. The computed tomography angiography, magnetic resonance angiography, and Doppler ultrasound findings are described.


Diagnostic and interventional radiology | 2011

Comparison of ultrasonographic patellar tendon evaluation methods in elite junior female volleyball players: thickness versus cross-sectional area.

Uğur Toprak; Evren Ustuner; Sadık Uyanık; Gulcan Aktas; Gizem İrem Kinikli; Gul Baltaci; Mehmet Alp Karademir

PURPOSE The goal of the present study was to compare the patellar tendon cross-sectional area with the patellar tendon thickness and to determine the intra-observer compliance level in the cross-sectional area and thickness measurements. This comparison was used to describe the effects of playing volleyball on the patellar tendon. MATERIALS AND METHODS The patellar tendons of 60 volleyball players and 60 non-player female students, who were 11-16 years of age with similar physical characteristics, were examined using Doppler ultrasonography (US). Cross-sectional area and thickness measurements were conducted. RESULTS The proximal and distal thicknesses of the patellar tendon were similar, but the area was smaller for the distal portion. A correlation was observed between age and tendon thickness and between the thickness and area of the tendon. All of the measurements in the subjects with tendinosis were larger than those in the healthy controls. There were no pathological findings in the non-players. The intra-observer compliance was high. CONCLUSION The transverse plane area measurement was as reliable as the thickness measurement and exhibited a high level of intraobserver compliance. This measurement can be conducted during routine examinations. The patellar tendons in the athletes were observed to be widened and thickened, most likely because of overuse. Patellar tendinosis and Osgood-Schlatter Syndrome may be asymptomatic and incidentally detected. Therefore, routine US examinations may help prevent further injuries. Although the tendon thicknesses were observed to be the same in both extremities, any observed difference in the tendon areas may alert the physician to a risk factor for the development of tendinosis.


Journal of Ultrasound in Medicine | 2001

Adenomyoepithelioma of the breast.

Selma Tukel; Evren Ustuner; Suat Aytaç

A denomyoepithelioma (AME) is a rare tumor characterized by a balanced bicellular pattern of proliferating epithelial and myoepithelial cells. 1,2 Although it is considered benign in nature, local recurrences and nodal and distant metastases have been reported. 1-6 Current treatment of AME involves total surgical excision of the tumor and a margin of uninvolved tissue as well as long-term follow-up, 7,8 In our case, the radiologic and color Doppler sonographic findings suggested carcinoma. To our knowledge, this is the first report describing the color Doppler sonographic features of AME of the breast.


Oral Surgery, Oral Medicine, Oral Pathology, and Oral Radiology | 2013

Ultrasound evaluation of masseter muscle changes in stabilization splint treatment of myofascial type painful temporomandibular diseases.

Korkut Aldemir; Evren Ustuner; Erdal Erdem; A. Samimi Demiralp; Derya Öztuna

OBJECTIVES To detect whether stabilization splint (SS) treatment of painful myofascial type temporomandibular diseases (TMD) changes the masseter muscle morphology using ultrasound (US). STUDY DESIGN Thirty-five patients with painful myofascial TMD receiving SS treatment were studied. Masseter thickness, length, internal echo-fibrillary structure and vascularization were evaluated using gray-scale and power Doppler US just before and 3 months after the SS application. Visual analog scale (VAS) and mouth opening measurements were used to measure the outcome of treatment. RESULTS A significant shortening in the masseter muscle length (R: -3.67 mm, P: .010; L: -3.97 mm, P: .005) and thickness (R: -0.93 mm, P: .005; L: -0.90 mm, P: .016) was noted. No change in the internal echo-fibrillary structure or vascularization was detected. A significant decrease in VAS scores (Median: 5-0.5 P < .05) and mouth opening (42.77 ± 7.86 mm to 38.69 ± 6.21, P < .05) was also detected. CONCLUSION SSs modify and reduce the dimensions of masseter muscle.

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