Mehmet Akif Teber

Ankara Atatürk Eğitim ve Araştırma Hastanesi

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Aynur Turan

Dışkapı Yıldırım Beyazıt Eğitim ve Araştırma Hastanesi

Baki Hekįmoğlu

Dışkapı Yıldırım Beyazıt Eğitim ve Araştırma Hastanesi

İY

İlhami Yüksel

Ankara Yıldırım Beyazıt University

Halil Yıldırım

Sivas State Hospital

Törel Oğur

Ankara Onkoloji Eğitim ve Araştırma Hastanesi

Alper Bozkurt

Istanbul Yeni Yüzyıl University

Osman Yüksel

Gazi University

Uğur Dönmez

Aİ

Ali İpek

Bilkent University

Ahmet Aslan

Alanya Alaaddin Keykubat Üniversitesi

Cooperative Institutions

Ministry of Health

Sağlık Bilimleri Üniversitesi

Dışkapı Yıldırım Beyazıt Eğitim ve Araştırma Hastanesi

Ankara Atatürk Eğitim ve Araştırma Hastanesi

Ankara Yıldırım Beyazıt University

Memorial Ankara Hospital

Gazi University

Ankara Onkoloji Eğitim ve Araştırma Hastanesi

Hacettepe University

Ankara Numune Eğitim ve Araştırma Hastanesi

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The use of real-time elastography in the assessment of gallbladder polyps: preliminary observations

Medical Ultrasonography (2014)

Mehmet Akif Teber Sinan Tan Uğur Dönmez Ali İpek Ali Erkan Uçar

Gallbladder polyps often have a benign nature. Current guidelines suggest surgical removal of polyps greater than 10 mm. However, the accuracy of the size criteria is limited because neoplasia can be found in gallbladder polyps less than 10 mm. The aim of this study was to evaluate the feasibility of real time elastography for gallbladder polyps and to demonstrate the elasticity properties of the polyps.Fifty-three polypoid lesions of the gallbladder were prospectively examined with real-time elastography. Of these patients, 52 had a diagnosis of benign gallbladder polyps and one patient was accepted as a gallbladder carcinoma due to its clinical and radiological findings. B-mode and real-time elastographic images were simultaneously presented as a two-panel image, and the elastogram was displayed in a color scale that ranged from red (greatest strain, softest component), to green (average strain, intermediate component), to blue (no strain, hardest component).The mean size for benign gallbladder polyps was 7.2 +/- 3 mm (range, 5-21 mm). All benign gallbladder polyps on consecutive real-time elastographic images appeared as having a high-strain elastographic pattern. Only one patient who was accepted with gallbladder carcinoma had a gallbladder polyp with low elasticity properties.Our study showed that real time elastography of gallbladder polyps is feasible. This novel approach may be useful for the characterization of polypoid lesions of the gallbladder.

10.11152/mu.201.3.2066.164.1mat

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Citations (14)

Can Breast Magnetic Resonance Imaging Prevent Biopsy or Change the Management of BI-RADS® Category 4 Breast Lesions?

Indian Journal of Surgery (2017)

Hale Turnaoğlu Emine Öztürk Cüneyt Yücesoy Mehmet Akif Teber Aynur Turan

BI-RADS

Breast MRI

Breast imaging

Neuroradiology

10.1007/s12262-017-1654-7

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Citations (2)

Scrotal calculi in clinical practice and their role in scrotal pain: A prospective study

Journal of Clinical Ultrasound (2014)

Ahmet Aslan Sinan Tan Halil Yıldırım Uğur Dönmez Ali Çam

Purpose Scrotal calculi are rare, and their clinical significance is uncertain. Scrotal pain is a frequent, hard-to-manage problem in urology clinics. Our purpose in this study was to determine the relationship between the presence of scrotal calculi and scrotal pain in a prospective manner. Methods Sonography and color Doppler ultrasound of the scrotum were performed in 758 consecutive patients referred with scrotal pain. The pain was rated by using an 11-point numeric rating scale; scores were compared among patients with scrotal calculi with and without additional scrotal pathology. Results Scrotal calculi were detected in 73 of the 758 patients (9.6%). Scrotal pain (n = 50 [61%]) and a palpable mass in the scrotum (n = 25 [30.5%]) were the most common complaints in patients with scrotal calculi. Hydrocele (n = 17 [29.8%]) and varicocele (n = 15 [26.3%]) were the most commonly associated abnormalities; there was a statistically significant association between the presence of scrotal calculi and hydrocele (p < 0.01). Scrotal pain was present in 61 (83.5%) patients with scrotal calculi, and this association was significant (p < 0.001). The presence of scrotal pain and the correlation between location of calculi and pain in patients without additional scrotal abnormalities were also significant (p = 0.04 and p < 0.004, respectively). Conclusions The prevalence of scrotal calculi was 9.6%, and hydrocele was found to be associated with scrotal calculi. We also found a significant relationship between the presence of calculi and scrotal pain. Because the etiology of scrotal pain is essential for appropriate treatment, scrotal calculi should be kept in mind when making a differential diagnosis of scrotal pain. © 2014 Wiley Periodicals, Inc. J Clin Ultrasound 43:406–411, 2015

Scrotal Pain

Hydrocele

Etiology

10.1002/jcu.22247

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Citations (8)

Real‐time Sonoelastography of the Quadriceps Tendon in Patients Undergoing Chronic Hemodialysis

Journal of Ultrasound in Medicine (2015)

Mehmet Akif Teber Törel Oğur Alper Bozkurt Bülent Er Aynur Turan

This study aimed to compare sonoelastographic findings for the quadriceps tendon in patients with chronic renal failure who were in a dialysis program to findings in a control group.Fifty-three randomly allocated patients (mean age, 54.3 years; range, 27-86 years) with chronic renal failure who were in a dialysis program 3 days a week between January and May 2012 were included. The measurements were performed in both knees of 53 patients undergoing dialysis and 25 individuals in the control group. The tendons were classified as follows: type 1, very stiff tissue (blue); type 2, stiff tissue (blue-green); and type 3, intermediate tissue (green-yellow) according to color mapping.The mean quadriceps tendon thicknesses in the patient group were 4.9 mm (range, 1.9-6.5 mm) for the right knee and 4.9 mm (1.4-6.5 mm) for the left knee; the values in the control group were 5.4 mm (3.6-7.0 mm) for the right knee and 5.4 mm (3.4-7.0 mm) for the left knee. The mean elasticity scores in the patient group were 3.14 (1.03-5.23) for the right knee and 3.33 (1.29-5.00) for the left knee; in the control group, the values were 3.79 (1.73-5.23) and 3.69 (1.23-5.53) for the right and left knees, respectively (right knee, P = .025; left knee, P = .018; Mann-Whitney U test). The quadriceps tendons were significantly thinner in the patient group (right knee, P = .054; left knee, P = .015; Mann-Whitney U test).Quadriceps tendons in patients with chronic renal failure are thinner and have lower elasticity scores compared to controls.

Quadriceps tendon

Chronic renal failure

10.7863/ultra.34.4.671

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Citations (17)

The Role of Radiologic and Scintigraphic Imaging in Differentiating Thoracic Pyogenic Spondylodiscitis from Metastasis

The Ulutaş medical journal/The ulutas medical journal (2016)

Sevin Ayaz Salih Sinan Gültekin Alper Dilli Mehmet Akif Teber

Background: Physical examination, basic laboratory tests and plain radiographs can give important data in diagnosis of the patients presenting with complaints of back pain. However, advanced imaging tools may be necessary for further evaluation of complicated processes in geriatric patients. Case presentation: We presented plain radiography, magnetic resonance imaging (MRI) and bone scintigraphy (BS) findings of thoracic pyogenic spondylodiscitis in a 72-year-old male patient which resembles metastatic disease. Conclusion: Multimodal imaging, particularly MRI and BS can provide useful data in the initial diagnosis and follow-up of geriatric patients with a complicated vertebral pathology. Spondylodiscitis can mimic metastatic disease.

Spondylodiscitis

10.5455/umj.20160421120053

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Citations (0)

Multiple Arterial Variants: Common interosseous artery arising from the radial artery and ulnar artery origin from proximal brachial artery

Electronic Journal of General Medicine (2013)

Suat Keskin Zeynep Keskin Mehmet Akif Teber

The normal ulnar artery originates from the brachial artery in the cubital fossa. The high origin ulnar artery is a rare anatomic variation. Anatomic variations in the arteries of the upper extremities have been reported by different authors. It is significant for surgeons and radiologists to be aware of the possible arterial variations in order to hinder complications during surgical and diagnostic procedures. This report demonstrates an anomalous origin of the ulnar artery from the proximal brachial artery.

Ulnar artery

Brachial artery

Axillary artery

10.29333/ejgm/82302

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Citations (1)

Real time sonoelastographic evaluation of renal allografts in correlation with clinical prognostic parameters: comparison of linear and convex transducers according to segmental anatomy

Medical Ultrasonography (2014)

İdil Güneş Tatar Mehmet Akif Teber Törel Oğur Aydın Kurt Baki Hekįmoğlu

Renal transplantation is the treatment of choice in end-stage renal disease. Chronic allograft dysfunction is the leading cause of chronic allograft failure. Surveillance biopsy is the only reliable tool to detect early fibrosis in the allograft. There is a need for non-invasive methods for the detection of early development of renal allograft fibrosis.To analyze the reliability of sonographic elasticity index and resistive index measurements in the evaluation of renal transplant fibrosis using linear and convex transducers according to segmental anatomy.Elasticity index and resistive index were measured in 28 renal transplants and correlated with clinical prognostic parameters. Donor age above 50 years old, post transplantation time over 60 months and serum creatinine level above 1.5 mg/dl were defined as poor prognostic parameters.Renal transplant recipients with serum creatinine level above 1.5 mg/dl demonstrated higher mean elasticity index (p=0.006) with a convex probe and higher elasticity index in the middle segments both with a convex and a matrix linear probe (p=0.026, p=0.001). Renal transplant recipients with post-transplantation time of 60 months and more demonstrated higher resistive index values in the middle segments (p=0.016).Convex probe was able to detect the changes in mean stiffness better than the matrix linear probe. The measurements from subsegments might suggest that diffuse changes in stiffness can truly be detected in the middle segments or that fibrotic processes start from the middle segments of the renal transplants. Further studies correlated with histopathology are required to validate the findings.

Resistive index

10.11152/mu.2013.2066.163.igt1

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Citations (17)

Budd-Chiari syndrome and portal vein thrombosis due to essential thrombocytosis

Platelets (2010)

Şahin Çoban İbrahim Ertuğrul Fuat Ekız Mehmet Akif Teber Osman Yüksel

Budd-Chiari syndrome secondary to essential thrombocytosis has been described in a few reports in the English literature. Associated portal vein thrombosis occurs very rarely. Herein, we report a case presented with ascites and finally diagnosed with hepatic and portal vein thrombosis, and essential thrombocytosis. We discussed the therapeutic approaches in the light of pertinent literature.

Thrombocytosis

Portal vein thrombosis

Budd–Chiari syndrome

10.3109/09537100903447726

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Citations (1)

Irregular Yolk Sac Shape

Journal of Ultrasound in Medicine (2011)

Sinan Tan Ali İpek Mine Kanat-Pektaş Meral Arifoğlu Mehmet Akif Teber

The yolk sac is the first conceptional structure that becomes sonographically visible within the gestational sac. Because the yolk sac is the primary route of exchange between the embryo and the mother, it is essential in early embryonic life. This study aimed to determine whether an irregular yolk sac shape is associated with an increased risk of spontaneous abortion.The shape and size of the yolk sac were assessed by transvaginal sonography in 183 women who had normal and healthy pregnancies with gestational ages of 6 to 8 weeks.Most of the embryos had a yolk sac with a regular shape (152 of 183 [83%]), whereas the remaining embryos had a yolk sac with an irregular shape (31 of 183 [17%]). Although there was a trend toward a lower rate of irregular yolk sacs with advancing gestational age, the difference was not statistically significant (P = .13). Spontaneous abortion occurred in 6 of 183 pregnancies (3.3%): 1 of the 31 (3.2%) with an irregular yolk sac shape and 5 of the 152 (3.3%) with a regular yolk sac shape. The rates of spontaneous abortion were statistically similar for pregnancies with a regular yolk sac shape and those with an irregular shape (P > .99).This study suggests that an irregular yolk sac shape is unrelated to an increased risk of spontaneous abortion.

10.7863/jum.2011.30.1.31

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Citations (27)

Ultrasound elastographic evaluation of the median nerve in pregnant women with carpal tunnel syndrome.

PubMed (2015)

Tanin Oğur Zeynep İlerisoy Yakut Mehmet Akif Teber F Alp Aydın Turan

To evaluate the median nerve (MN) in pregnant women with carpal tunnel syndrome (CTS) by using ultrasound elastography.30 wrists of 20 pregnant women with CTS and 25 wrists of 14 healthy control pregnant women were evaluated by ultrasound and ultrasound elastography (UE). The MN in the patients' wrist was imaged to measure the cross-sectional area and longitudinally to calculate the elasticity value (EV) at four different locations (proximal carpal tunnel (CT) at the level of the pisiform, distal CT at the level of the hamate, middle of the CT and forearm at one centimeter above the CT). Clinical classification was performed according to a historic and objective scale of CTS. In the healthy pregnant women and pregnant women with CTS, MN area and EV were analyzed statistically by comparing with parity and clinical grade.There was a statistically significant difference for MN area between the patient and control groups (p = 0.001). A positive relationship was found between parity in pregnancy and clinical grade of the CTS (p = 0.035, Pearson's correlation coefficient = 0.386). Although MN elasticity for both groups was nearly the same in the proximal region of the CT, these values were decreased in the middle of the CT. MN elasticity values were smaller in the distal region of CT, and it was statistically significant in pregnant women with CTS (p = 0.02).Ultrasound elastography, which is a non-invasive, inexpensive and a favorable diagnosis technique, may be useful in the diagnosis of CTS, especially in conditions in which an invasive procedure would be problem, as in pregnancy.

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Citations (17)