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3-T MRI of the biliary tract variations
(Springer France, 2013) Onder, Hakan; Ozdemir, Muhammed Siddik; Tekbas, Guven; Ekici, Faysal; Gumus, Hatice; Bilici, Aslan
The gallbladder and the biliary tract are structures in close connection with the adjacent organs and may show a number of variations and anomalies. It is therefore important for surgical purposes to know their anatomy and variations in detail. Various methods are used in the imaging of the variations of the biliary tract and its pathologies, including ultrasonography, computed tomography; direct cholangiographic methods like endoscopic retrograde cholangiopancreatography, percutaneous transhepatic cholangiography, intravenous cholangiography and T-tube cholangiography, as well as indirect methods like magnetic resonance cholangiopancreatography (MRCP) or cholescintigraphy. The aim of this study is to investigate the frequency of the anatomic variations of the biliary tract using 3-T MRCP and to compare the findings with the data in the literature. For the purposes of this study, patients who underwent MRCP at our hospital (Dicle University Hospital) between November 2009 and February 2012 were investigated retrospectively. A total of 590 patients (between 6 and 88 years of age; mean age: 51 +/- A 9 years) were included in the study. The MRCP imaging was carried out with an magnetic resonance imaging (MRI) device supplied with 3-T magnetic power and by obtaining T2-weighted images through the single-shot fast spin echo technique using the standard body coil. The axial and coronal source images and the reformatted images were evaluated together in terms of the possible anatomic variations. Among the 590 patients included in the study, of 233 (39.5 %) showed anatomic variations at different levels in the intra- and extrahepatic biliary tracts. Among these variations, a right posterior hepatic duct insertion to the left hepatic duct at the level of the bifurcation has been observed in 71 patients (12.1 %), trifurcation was observed in 30 patients (5.1 %) and insertion into the main hepatic duct at the proximal aspect of the cystic duct was observed in 18 patients (3.1 %). At the level of the cystic duct, medial insertion of the cystic duct was viewed in 58 patients (9.8 %), distal medial insertion was seen in 40 patients (6.8 %), a short cystic duct was detected in 10 patients (1.7 %), pancreatobiliary junction anomaly was viewed in two patients (0.4 %) and duplicate anatomic variations have been observed in 42 patients (7.2 %). MRCP studies conducted using 3-T MRI devices may reveal similar or greater numbers of variations when compared to the existing MRCP studies in the literature. 3-T MRI shows a couple of variations. Pointing out these anatomical variations before the surgical intervention may prevent possible iatrogenic traumas. Donors with unsuitable variations for liver transplant may be spotted out at an early phase through the MRCP and certain operations with a high morbidity rate may thus be avoided.
Aortofemoral by-pass cerrahisinin nadir bir komplikasyonu: Hidroüretronefroz
(2013) Yavuz, Celal; Tekbaş, Ebru; Önder, Hakan; Tekbaş, Güven; Bilici, Aslan; Ekici, Faysal
Üreterin obstürüksiyonuna sekonder hidronefrozun birçok nedeni bulunmakla birlikte aortofemoral greftoklüzyonuna sekonder hidroüreteronefroz sıralamanın oldukça sonlarındadır. İlk 1960'lı yıllarda raporedilen greft kompresyonuna sekonder hidroüreteronefroz son yıllarda nadiren rapor edilmektedir. Buyazıda aortofemoral bypass cerrahisi geçirmiş, intermittant klaudikasyo ile kliniğe başvuran, 62yaşındaki erkek hastada, insidental saptanan hidroüreteronefroz literatür eşliğinde sunulmuştur.
Aortofemoral by-pass cerrahisinin nadir bir komplikasyonu: hidroüretronefroz Türkçe
(Harran Üniversitesi, 2013) Tekbaş, Güven; Tekbaş, Ebru; Önder, Hakan; Ekici, Faysal; Yavuz, Celal; Bilici, Aslan
Üreterin obstürüksiyonuna sekonder hidronefrozun birçok nedeni bulunmakla birlikte aortofemoral greft oklüzyonuna sekonder hidroüreteronefroz sıralamanın oldukça sonlarındadır. İlk 1960'lı yıllarda rapor edilen greft kompresyonuna sekonder hidroüreteronefroz son yıllarda nadiren rapor edilmektedir. Bu yazıda aortofemoral bypass cerrahisi geçirmiş, intermittant klaudikasyo ile kliniğe başvuran, 62 yaşındaki erkek hastada, insidental saptanan hidroüreteronefroz literatür eşliğinde sunulmuştur
Are Breast Masses in Teenagers Always Benign? Undifferentiated Mesenchymal Sarcoma in a 14-Year-Old Girl
(Karger, 2012) Tekbas, Guven; Ince, Tulay; Kapan, Murat; Ekici, Faysal; Onder, Akin; Kucukonen, Mehmet; Bilici, Aslan
Background: This article is concerned with the evaluation of an adolescent breast mass using imaging methods. Case Report: A 14-year-old girl presented with progressive asymmetric enlargement of the left breast. She had felt a breast lump about 4 months earlier, and over the last 2 months it had been growing progressively. Tumor markers, including AFP, CEA, CA15-3, and CA125, were all normal. Ultrasonography showed a hypoechoic-hyperechoic, solid mass. Magnetic resonance imaging of the breast revealed a well marginated mass with hypointensity on T1-weighted images and mild hyperintensity on T2-weighted images, which showed mild contrast uptake. Biopsy revealed an undifferentiated malignant mesenchymal sarcoma. The patient underwent mastectomy with axillary lymph node sampling. After the operation, she received 3 cycles of chemotherapy and radiotherapy. Conclusion: Due to the rarity of breast sarcoma and inadequate imaging methods to establish an exact diagnosis, radiologists and clinicians may misdiagnose and merely follow these tumors. As in our case, the histology of the patient may be the leading factor in the management of these tumors. Even in very young patients, progressively growing breast masses should alert the clinician to check for malignancy verified by biopsy.
Automatic detection and localization of COVID-19 pneumonia using axial computed tomography images and deep convolutional neural networks
(Wiley, 2021) Polat, Hasan; Özerdem, Mehmet Siraç; Ekici, Faysal; Akpolat, Veysi
COVID-19 was first reported as an unknown group of pneumonia in Wuhan City, Hubei province of China in late December of 2019. The rapid increase in the number of cases diagnosed with COVID-19 and the lack of experienced radiologists can cause diagnostic errors in the interpretation of the images along with the exceptional workload occurring in this process. Therefore, the urgent development of automated diagnostic systems that can scan radiological images quickly and accurately is important in combating the pandemic. With this motivation, a deep convolutional neural network (CNN)-based model that can automatically detect patterns related to lesions caused by COVID-19 from chest computed tomography (CT) images is proposed in this study. In this context, the image ground-truth regarding the COVID-19 lesions scanned by the radiologist was evaluated as the main criteria of the segmentation process. A total of 16 040 CT image segments were obtained by applying segmentation to the raw 102 CT images. Then, 10 420 CT image segments related to healthy lung regions were labeled as COVID-negative, and 5620 CT image segments, in which the findings related to the lesions were detected in various forms, were labeled as COVID-positive. With the proposed CNN architecture, 93.26% diagnostic accuracy performance was achieved. The sensitivity and specificity performance metrics for the proposed automatic diagnosis model were 93.27% and 93.24%, respectively. Additionally, it has been shown that by scanning the small regions of the lungs, COVID-19 pneumonia can be localized automatically with high resolution and the lesion densities can be successfully evaluated quantitatively.
Behçet hastalığına bağlı psödotümör serebride kraniyal manyetik rezonans görüntülemesinde optik sinir kılıfında sıvı artışı
(2011) Tamam, Yusuf; Uzar, Ertuğrul; Ekici, Faysal; Şahin, Alparslan; Açar, Abdullah; Taşdemir, Nebahat
Psödotümör serebri Behçet hastalığında ender görülen bir durumdur. Optik sinir kılıfında genişleme ve optik sinir etrafında subaraknoid aralıkta sıvı artışı, psödotümör serebrili hastalarda nadir gözlenen manyetik rezonans (MR) bulgularıdır. Bildiğimiz kadarıyla Behçet hastalığına bağlı psödotümör serebride bu bulgular literatürde bildirilmemiştir. Bu tür olgularda lumboperitoneal şant cerrahisi medikal tedaviye yanıt alınamadığında ve görme semptomları varlığında uygulanabilmektedir. Bu yazıda, ilgili radyolojik ve klinik bulgular tartışıldı ve tedavi yöntemleri kısaca gözden geçirilmiştir.
Clinical and multidetector computed tomography findings of patients with median arcuate ligament syndrome
(Elsevier Science Inc, 2012) Gumus, Hatice; Gumus, Metehan; Tekbas, Guven; Onder, Hakan; Ekici, Faysal; Cetincakmak, Mehmet Guli; Bilici, Aslan
Objectives: The present study aimed to present the clinical and multidetector computed tomography (MDCT) findings of patients who were diagnosed with the median arcuate ligament (MAL) syndrome on MDCT retrospectively. Methods: Seven hundred forty-four patients in whom MDCT angiography was performed were retrospectively analyzed for investigating incidental MAL syndrome. Results: Twenty-one patients were shown to have MAL syndrome. Of 21 patients, 18 with MAL syndrome were asymptomatic. Three patients had some symptoms. On MDCT angiography, proximal narrowing of the arteries was observed in 21 patients. Conclusions: MDCT is a minimally invasive and useful tool for the diagnosis of MAL syndrome. (c) 2012 Elsevier Inc. All rights reserved.
Comparison of 3.0-T MRI findings in drug resistant and non-resistant adult epileptic patients
(2013) Ekici, Faysal; Tekbaş, Güven; Önder, Hakan; Gümüş, Hatice; Çetinçakmak, Mehmet Güli; Balık, Suzan K.; Acar, Abdullah; Hamidi, Cihat; Bilici, Aslan; 0000-0002-4293-1335
Epilepsy is a common chronic disease characterized by spontaneous and recurrent seizures. Along with the increases in life expectancy, the prevalence of epilepsy in adults increased in parallel. 3.0-T MRI provides high signal/noise ratio and is an important tool in the determination of epileptic lesion in epilepsy patients. Our aim in this study was to research and compare 3.0-T MRI findings of Turkish epileptic patients that are resistant and non-resistant to medical treatment. 3.0-T MRI images from 264 consecutive patients, of which 150 were males and 114 were females (age range 18-82 years; mean age 31.3 years) were examined, retrospectively. Among those patients, 94 were resistant to medical treatment (DRE+) and 170 were non-resistant (DRE-). Epileptic lesion was determined in 119 of the patients. Epileptic lesion was determined in sixty-three patients who were resistant to medical treatment and in fifty-six patients who were non-resistant. Epileptic lesion was determined in approximately half of the adult epilepsy patients by using 3.0-T MRI. This study demonstrates a high prevalence of brain abnormalities in Turkish epileptic patients with DRE+. The lesion was determined in 67% of patients with medical treatment resistance, while the percentage for the other group was only 32.9%. The ratio of epileptic lesion determination by using 3.0-T MRI was quite higher in the medical treatment resistant group than the non-resistant group.
Course anomalies of extracranial internal carotid artery and their relationship with pharyngeal wall: an evaluation with multislice CT
(Springer France, 2012) Ekici, Faysal; Tekbas, Guven; Onder, Hakan; Gumus, Hatice; Cetincakmak, Mehmet Guli; Palanci, Yilmaz; Bakir, Salih
The goal of our study was to measure the prevalence of anomalies in the extracranial segment of internal carotid artery (ICA), to measure the carotid-pharyngeal distance (CPD). Computed tomography (CT) angiography images of 607 patients were retrospectively examined. The course anomaly and CPD were obtained at different image plane. The patients were divided into four groups according to their age. The incidence of course anomaly in ICA was shown to be 60.3 %. Prevalence of course anomaly showed an increase with age (p < 0.001). Women had more ICAs with a course anomaly than men (p < 0.001). Mean CPD among all ICAs was found to be 11.13 mm. When CPD values were compared between the groups, group 1 and group 2 did not have a significant difference, however, there was a significant difference between other groups (p < 0.05). The CPD significantly decreased with age (p < 0.001). In ICAs that showed a straight course, the mean CPD was 13.0 mm, while in ICAs that showed course anomaly, the mean CPD was determined to be 9.49, showing a significant difference (p < 0.05). In conclusion, the number of ICAs that show a course anomaly increases with age, while the CPD decreases. The CPD is decreased in groups that show anomalies. The detection of a decreased CPD before surgery may lower the chance of a perioperative hemorrhage due to artery damage during pharyngeal procedures. Hence, while reporting neck CT angiographies, it may be valuable to also report the presence of ICA anomalies and CPD.
Cranial magnetic resonance imaging findings of nutritional Vitamin B12 deficiency in 15 hypotonic infants
(Elsevier Sci Ltd, 2012) Taskesen, Mustafa; Yaramis, Ahmet; Pirinccioglu, Ayfer Gozu; Ekici, Faysal
Background: Nutritional vitamin B-12 deficieny is common among infants in the developing and underdeveloped countries. There is limited information concerning neuroimaging findings in infants with vitamin B-12 deficiency in the literature. Aims: The aim of this study is to evaluate the cranial magnetic resonance imaging (MRI) changes and clinical characteristics of hypotonic infants due to vitamin B-12 deficiency. Materials and methods: A total of 15 infants with neuroradiologic investigations were diagnosed with nutritional B-12 vitamin deficiency. Cranial MRI was performed on all infants. Results: Five infants were female (33%) and the mean age of infants was 12.3 +/- 5.5 months. Hypotonia and neurodevelopmental retardation were present in all patients. MRI demonstrated thinning of the corpus callosum in 6 (40%), cortical atrophy in 5 (33.3%), large sylvian fissures in 5 (33.3%), ventricular dilatation in 3 (20%), asymetric large lateral ventricle in 2 (13.3%) and delayed in myelination in 2(13.3%) patients. Four infants had normal MRI findings. Conclusion: Because of the importance of vitamin B-12 in the development of the brain, MRI findings may be detected and useful in infants with vitamin B-12 deficiency. (C) 2011 European Paediatric Neurology Society. Published by Elsevier Ltd. All rights reserved.
Cranial Magnetic Resonance Imaging in the Staging of HER2-positive Breast Cancer Patients
(Karger, 2013) Kaplan, Muhammet A.; Inal, Ali; Kucukoner, Mehmet; Urakci, Zuhat; Ekici, Faysal; Firat, Ugur; Zincircioglu, Seyit B.
Aim: The aim of the current study was to evaluate whether early detection of brain metastases (BMs) could improve survival outcomes in human epidermal growth factor receptor 2 (HER2)-positive breast cancer patients. Material and Methods: HER2-positive breast cancer patients without BMs who had no neurological symptoms within 12 months from diagnosis or relapse time of the disease were included in the study. The patients were distributed into 2 groups: Group 1 comprised patients without metastases; group 2 comprised patients with metastases. The symptomatic historic control group with BMs was defined retrospectively for survival comparisons. Results: 55 (57.3%) and 41(42.7%) patients were in groups 1 and 2, respectively. 11 of the 96 patients (11.5%) had occult BMs, and 9 of them were in group 2 whereas only 2 patients were in group 1 (22% vs. 3.6%, respectively; p = 0.008). While the median survival times from the first metastasis (28.7 vs. 22.5 months, respectively; p = 0.561) and BM (6.8 vs. 6.1 months, respectively; p = 0.511) were similar, cerebral death was numerically different (16.7% vs. 46.3%; p = 0.221) between asymptomatic (n = 9) and symptomatic patients (n = 53). Conclusions: BMs were detected very rarely in asymptomatic, non-metastatic HER2-positive breast cancer patients compared with asymptomatic, metastatic patients. Furthermore, although early detection of BMs decreases the cerebral death rate, it does not prolong the survival rate in metastatic patients.
Diagnostic contribution of focal cortical dysplasia MRI imaging findings and ADC values
(Springer, 2019) Aslan, Aydin; Deniz, Muhammed Akif; Deniz, Zelal Tas; Turmak, Mehmet; Ekici, Faysal
BackgroundFocal cortical dysplasia (FCD) is a condition that often interferes with the cranial mass. Knowledge of focal cortical dysplasia magnetic resonance imaging (MRI) characteristics is of utmost importance for diagnosis. This study aimed to determine the diagnostic contribution of cranial MRI and the apparent diffusion coefficient (ADC) in FCD.ResultsCranial MRI revealed subcortical hyperintensity (SCH) in 52 patients (82.5%), blurring of the gray-white matter (GWM) interface (blurring) in 52 patients (82.5%), cortical thickening (CT) in 48 patients (76%), cortical signal increase (CSI) in 41 patients (65%), and transmantle sign (TMS) in 29 patients (46%). All of the FCDs had a diffusion increase in diffusion-weighted images (DWIs). The mean ADC value at the lesion level was 1.087 x 10(-3) mm(2)/s (0.82/1.316 x 10(-3) mm(2)/s), which was significantly higher than the mean ADC value measured from the contralateral symmetric region (0.758 x 10(-3) mm(2)/s, 0.678/0.872 x 10(-3) mm(2)/s, p = 0.001).ConclusionResults of this study revealed that the most common MRI findings in FCD patients are SCH, blurring, and CT. These findings aid in an easier diagnosis in patients with suspected FCD. All of the lesions studied here in had a diffusion increase in DWI. The quantitative mean ADC values detected in the differential diagnosis of other lesions with a diffusion increase can be used as a reference. Therefore, in addition to the ADC values and electroencephalography (EEG) findings, the conventional MRI findings of FCD, which is resistant to medical treatment, can help to facilitate the diagnosis of FCD, which can be treated with surgery.
Diameters of the common bile duct in adults and postcholecystectomy patients: A study with 64-slice CT
(Elsevier Ireland Ltd, 2012) Senturk, Senem; Miroglu, Tugba Cezlan; Bilici, Aslan; Gumus, Hatice; Tekin, Rojbin Ceylan; Ekici, Faysal; Tekbas, Guven
This study aims to collect data by multidetector computed tomography (MDCT) on the diameter of the normal common bile duct (CBD) and the diameter of CBD after cholecystectomy. In this retrospective study, CBD measurements were performed on axial oblique images, perpendicular to the long axis of the distal CBD. The mean diameter of the normal CBD was measured in 604 patients without cholecystectomy. The patients were divided into 6 groups according to their age. Analysis of variance (ANOVA) was used to compare data obtained from the six age groups. The mean diameter of the CBD of 46 patients who had cholecystectomy was calculated. The results were compared with age matched control group by Student's t test. The largest diameter of CBD ranged from 1.8 to 11.8 mm. The mean of the largest diameter of 604 subjects was 4.77 +/- 1.81. The diameter of the CBD significantly increased with age. Mean largest CBD diameters of postcholecystectomy subjects (7.28 +/- 2.37) were significantly greater than age matched control group. In conclusion the diameter of CBD shows a considerable increase with age. The largest diameter of the CBD is up to 6 mm in most of the subjects. An upper limit of 8 mm appears reasonable after the age of 50; and an upper limit of 10 mm seems appropriate for cholescystectomized subjects. (C) 2010 Elsevier Ireland Ltd. All rights reserved.
Display with 64-detector MDCT angiography of cerebral vascular variations
(Springer France, 2013) Hamidi, Cihad; Bukte, Yasar; Hattapoglu, Salih; Ekici, Faysal; Tekbas, Guven; Onder, Hakan; Gumus, Hatice
The aim of this study was to assess the cerebral variations and observe their frequency in the patients who have undergone angiographies with the state of the art 64-slice multidetector computed tomography (MDCT) angiography technique due to various reasons. 500 patients (253 women, 247 men) who had CT scan in the period of April 2008 to March 2010 at Dicle University Medicine Faculty Hospital Radiology Unit were surveyed in this study. Patients who had CT scan with brain CT angio protocol were evaluated using multiplanar, maximum intensity projection (MIP) and volume rendering (VR) images in work station. 773 variations were totally detected among 500 patients. Variations were categorized as Willis polygon, fenestration and other variations. Frequent variations were detected at Willis polygon and posterior communicating artery (PCOA) hypoplasia was detected as the prevalent variation. In the present study, we have demonstrated that cerebral vascular variations are frequent and that these variations can be detected in a non-invasive manner using the MDCT angiography. The results obtained from our study may serve as preoperative guidelines for the units performing surgical procedures.
The distribution of stylohyoid chain anatomic variations by age groups and gender: an analysis using MDCT
(Springer, 2013) Ekici, Faysal; Tekbas, Guven; Hamidi, Cihad; Onder, Hakan; Goya, Cemil; Cetincakmak, Mehmet Guli; Gumus, Hatice
The aim of this study is to investigate the frequency of the SHC variations, and the distribution of the SP lengths in different age and sex groups using MDCT. MDCT scans were performed in 805 patients (401 males, 404 females). The patients were divided into six groups according to their ages. The length of the styloid process (SP) and its angulation on the transverse (TA) and sagittal (SA) planes were measured. Structural variations of the SHC were observed by means of three-dimensional (3D) and multiplanar reconstruction (MPR) images. Absence of the styloid process (n = 10), double proximal origin (n = 13), segmentation (n = 223), complete ossification (n = 24), and an SP with three proximal parts in one patient were among the anomalies detected. The mean length of the SP was greater in males than in females (33.2 +/- A 13.2 vs. 29.6 +/- A 10.5 mm, P < 0.001). Elongated SP (ESP) was observed in 56 % of the patients in the study group, and this ratio was the highest in Group 3 with 65.4 % (P < 0.05). TA and SA were 70.2A degrees A A +/- A 4.1A degrees, 69.9A degrees A A +/- A 4.2A degrees and 86.6A degrees A A +/- A 6.5A degrees, 88.3A degrees A A +/- A 6.6A degrees for the right and left sides, respectively. Besides, 3D and MPR images also present detailed and reliable data to radiologists and surgeons for the evaluation of the SHC. ESP has been detected in more than half of the patients, being more frequent in males and in individuals in the fifth decade of life. For an accurate diagnosis, clinicians should consider the ESP while evaluating the patients in this age group.
Dyke-Davidoff-Masson sendromu (serebral hemiatrofi): Radyolojik bulgular
(Dicle Üniversitesi Tıp Fakültesi, 2014) Bükte, Yaşar; Oysu, Aslıhan Semiz; Ekici, Faysal; Hattapoğlu, Salih; Sakcı, Zakir; Fidan, Elif
Amaç: Dyke-Davidoff-Masson Sendromu (DDMS) olan olguların kesitsel kranial görüntüleme bulgularının sunulması amaçlanmıştır. Yöntemler: Bilgisayarlı tomografi (BT) ve/veya manyetik rezonans görüntüleme (MRG) ile unilateral serebral hemisferik atrofisi saptanmış olan 16 olgunun bulguları retrospektif olarak değerlendirildi. Olguların 8’i kadın ve 8’i erkek olup, yaşları 5 ile 53 (ortalama: 24) arasında değişiyordu. Olguların 6’sı çocuk ve 10’u erişkindi. Olguların 5’inde BT ve 13’ünde MRG tetkiki yapılmıştı. Olguların görüntüleri retrospektif olarak incelenerek serebral parankimal bulgular ve kompansatuar kranial bulgular not edildi. Bulgular: Tüm olgularda unilateral serebral hemisfer atrofisi, ipsilateral kortikal sulkuslarda ve lateral ventrikülde genişleme mevcuttu. Hemisferik atrofi ile birlikte 6 olguda (%37,5) korpus kallozumun ipsilateral atrofisi, 13 olguda (%81) ipsilateral talamik atrofi, 8 olguda (%50) ipsilateral parahipokampal atrofi, 7 olguda (%44) ipsilateral serebral pedinkülde atrofi ve 3 olguda (%19) ipsilateral pons atrofisi saptandı. Olguların 13 tanesinde (%81) gliotik sinyal değişiklikleri gözlendi. Kompansatuar bulgulardan unilateral kalvariyal kalınlaşma 4 olguda (%25) fokal, 12 olguda (%75) diffüz olarak izlendi. Frontal sinüs ipsilateral yarımında genişleme 15 olguda (%94) ve ipsilateral temporal kemik havalanmasında artış ise 5 olguda (%31) mevcuttu. Sonuçlar: DDMS, serebral hemiatrofi ve kalvarial hipertrofi bulguları ile kendini gösteren bir sendromdur. Kesitsel radyolojik görüntüleme bulguları olgular arasında çeşitlilik gösterebilir.
The effect of ACE gene polymorphisms on Doppler blood flow parameters of carotid and brachial arteries in patients with myocardial infarction
(Sage Publications Inc, 2006) Bilici, Aslan; Ulgen, Mehmet Siddik; Nazaroglu, Hasan; Ozturk, Onder; Ekici, Faysal; Akgul, Cihan; Alan, Bircan
The authors investigated the relationship between the angiotensin-converting enzyme (ACE) insertion/deletion (I/D) polymorphism and the blood flow characteristics of common carotid (CCA) and brachial arteries (BA) by color Doppler ultrasound (CDUS) in patients with acute anterior myocardial infarction (AAMI). Sixty four patients (11 women and 53 men), aged 25 to 77 years, with AAMI were studied. The ACE genotypes were established. Peak-systolic (PSV) and end-diastolic velocity (EDV) of right and left CCA, PSV of right BA, and intimal-medial thickness (IMT) of both CCAs were measured by CDUS. All results were evaluated statistically. The ACE genotypes were distributed as follows: 43.8% DD, 43.8% ID, and 12.5% II. PSVs of BA and both CCAs were lower in patients with DD and ID than with 11 (p < 0.05). EDVs of both CCAs were also lower in the same groups, but statistically not significant (p > 0.05). IMTs of both CCAs did not differ among patients with various ACE genotypes (p > 0.05). These results suggest that ACE I/D polymorphism influences Doppler blood flow parameters of both BA and CCA, but does not affect IMT of CCA.
An elderly patient with Bochdalek's hernia case that implies left-sided intratoracic renal ectopia
(Tıp Araştırmaları Derneği, 2012) Önder, Hakan; Güler, Şükran; Tekbaş, Güven; Büyükkaya, Ayla; Gümüş, Hatice; Ekici, Faysal; Önder, Akın; Bilici, Aslan
Bochdalek hernia is a congenital disease characterized by protrusion of the abdominal organs into the thorax through the posterior defect in the diaphragma. The detection of incidental bochdalek hernia has increased because of the widespread use of the multidedector computed tomography. It is very rare in adult population. Intrathoracic kidney in bochdalek hernia is uncommon. In this paper, a 78 year-old man who had bochdalek hernia with a kidney in the left side of the thoracic region is presented.
Evaluation of postoperative undescended testicles using point shear wave elastography in children
(Elsevier Science Bv, 2016) Hattapoglu, Salih; Goya, Cemil; Arslan, Serkan; Alan, Bircan; Ekici, Faysal; Tekbas, Guven; Yildiz, Ismail
Purpose: To demonstrate the difference in tissue stiffness by comparing the value of the shear wave velocity (SWV) of postoperative undescended testicles with that of normal testes. Methods: This study included 39 patients and 30 healthy controls. US and p-SWE (VTQ) were performed using with a linear probe (4-9 MHz). Forty-seven operated undescended testicles comprised Group A, 27 testes with normal scrotal placement since birth in patient population comprised Group B. A total of 60 testes in 30 healthy controls were included as Group C. Finally, the testes of Group A, B, C were statistically compared in terms of the SWV and volume. Results: The shear wave values of the 47 testes in Group A were 0.75-2.8 (median, 1.1) m/s, and the SWVs of the 27 testes in Group B were 0.62-1.2 (median, 0.84) m/s. The SWVs of the 60 testes in Group C were 0.65-1 (median, 0.82) m/s. The testicular volumes of Group A ranged from 0.19 to 4.7 (median, 0.15) cm(3), Group B ranged from 0.34 to 8 (median, 0.74) cm(3) and Group C ranged as 0.4-15.5 (median, 0.91) cm(3). Conclusions: VTQ method of p-SWE is a new method that may reveal the difference in stiffness between scrotally placed testes and postoperative undescended testicles. (C) 2016 Elsevier B.V. All rights reserved.
Evaluation of pulmonary vein variations and anomalies with 64 slice multi detector computed tomography
(Springer Wien, 2012) Tekbas, Guven; Gumus, Hatice; Onder, Hakan; Ekici, Faysal; Hamidi, Cihad; Tekbas, Ebru; Gulicetincakmak, Mehmet
Pulmonary Veins are one of the major structures of circulation. In the last decade, pulmonary veins have been known to play an important role as the triggering focus of the electrical activity in atrial fibrillation. Primary treatment method of AF is RF ablation of the focus. For the best ablation, the anatomy of PVs should be well established before the procedure. MATERIAL AND METHODS: In our radiology department, 783 patients underwent computed tomography angiography between January 2008 and May 2010. Patients were referred for coronary CTA because of known or suspected coronary artery disease or computed tomography pulmonary angiography (CTPA) because of known or suspect pulmonary embolism. All scanning was performed on Philips Brilliance 64 slice Multidetector CT. The group consisted of 402 male and 381 female patients with the average age of 48 (range 14-89). CT data of patients were retrospectively reviewed to identify the PV anatomy and to determine anatomic variants and anomalies. RESULTS: In the majority of cases, two pulmonary veins drain into the left atrium on each side. Eighteen and eight variations were found in the right and left sides, respectively. Most frequent combined variations were 2R-4L (32.3%) and 4L was the more frequent single variation type (76%). In addition to that one Situs inversus totalis (0.12%), two partial anomalous pulmonary venous returns (0.25%) and one scimitar syndrome (0.12%) were found. CONCLUSION: This study showed that multiple types of variations of PVs can be found with increasing patient number. Therefore, for the successful ablation and surgery without any complications, the anatomy of PVs should be known before the procedure. MDCT is a reliable imaging method for the detailed cross-sectional and 3D anatomy.

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