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Öğe Bone mineral density in emphysema and chronic bronchitis phenotypes in hospitalized male chronic obstructive pulmonary disease patients(WILEY, 2020) Yormaz, Burcu; Cebeci, Hakan; Yılmaz, Farise; Süerdem, MecitIntroduction Risk of osteoporosis known to increase in chronic obstructive pulmonary disease (COPD), but is usually overlooked, especially in male patients. Objectives The present study compares the bone mineral density (BMD) measurements of male COPD patients with emphysema and the chronic bronchitis phenotype, and evaluates the association between density of emphysema and osteoporosis. Methods Ninety-four patients with COPD, and with emphysema and the chronic bronchitis phenotype, were included in the prospective study. A high-resolution computed tomography (HRCT) was used for the diagnosis of emphysema, and a dual X-ray absorptiometry was used to measure the BMD of the lumbar vertebrae and neck of the femur. Results Emphysema phenotype 45.75% and chronic bronchitis phenotype 54.25%, based on their clinical findings and a quantitative volumetric analysis by HRCT. Osteoporosis was found 60.47% and 17.65% of patients with emphysema and bronchitis, while osteopenia was detected 27.91% and 41.18% of patients with emphysema and bronchitis, respectively. A negative correlation was found between HRCT emphysema density and the bone densitometer t-score in patients with osteoporosis. Among the patients with osteoporosis, a positive correlation was found between Body Mass Index (BMI) and the bone densitometer t-score. Only BMI and emphysema score were found to be independent risk factors for a low BMD. One unit drop in BMI increased the risk of osteoporosis by 28% (OR = 1.28, 95% CI 1.14-1.45) (P < 0.001). One unit increase in emphysema score increased the risk of osteoporosis by 6% (OR = 1.06, 95% CI 1.03-1.09) (P < 0.001). Conclusion Especially male patients with emphysema, high dyspnea score, low BMI and frequent exacerbations should be evaluated for osteoporosis.Öğe Cervical giant pseudomeningocele presented with neck pain: conventional MRI and MR myelography findings(ELSEVIER SCIENCE INC, 2016) Cebeci, Hakan; Koplay, Mustafa; Sivri, Mesut; Paksoy, Yahya[Abstract not Available]Öğe Computed tomography findings of polysplenia syndrome with multiple anomalies(UNIV CATHOLIQUE LOUVAIN-UCL, 2016) Guler, Ibrahim; Koplay, Mustafa; Ozbek, Seda; Temizoz, Osman; Cebeci, HakanA 54-year-old patient presented to our hospital with the symptoms of stomach ache, weakness, loss of appetite and weight loss. The patient had mild abdominal sensitivity during physical examination; the results of other systemic examinations were normal. Laboratory findings showed anemia. Since the patient's symptoms were accompanied by weight loss, abdominal CT examination was performed to rule out any malignancies. The abdominal CT examination showed a picture consistent with partial situs inversus. The liver was located on the left, the spleen on the right and the heart was in its normal position. The cecum was observed in the lower left quadrant. Multiple spleens located in the upper right quadrant were observed (Fig. 1). Pancreas was ectopically located in the upper left quadrant and surrounded the second part of the duodenum. A diverticular formation was detected in the second part of the duodenum.Öğe The cutoff value for the diameter of the saphenous vein in predicting the presence of venous insufficiency(2018) Durmaz, Mehmet Sedat; Ozbakir, Bora; Cebeci, Hakan; Arslan, Serdar; Durmaz, Funda Gokgoz; Arslan, Fatma Zeynep; Tekin, Ali FuatAim: In this study aimed to investigate the relationship between saphenous vein diameters and reflux and to present their sensitivity and specificity values in predicting venous insufficiency (VI).Material and Methods: This study included 162 symptomatic patients admitted to our radiology clinic with complaints of VI in 317 of their lower extremities (LEs) and 67 asymptomatic healthy volunteers with their 134 LEs having no varicose veins. A total of 451 LEs were evaluated for VI with Doppler ultrasonography (US) in the standing position. Results: The saphenous vein diameters were higher at a statistically significant level in the symptomatic patient group than in the asymptomatic healthy volunteers (p<0.001). They were also higher at a statistically significant level in the LEs with clinically significant reflux (p<0.001). A cutoff value of a 5.35 mm diameter for insufficiency in great saphenous vein (GSV) led to 80.20% sensitivity and 79.20% specificity; a 4.85 mm diameter for insufficiency in small saphenous vein (SSV) led to 82.10% sensitivity and 83.60% specificity. Conclusions: A GSV diameter of > 5.35 mm and a SSV diameter of > 4.85 mm are the best cutoff values, which could be used as an additional parameter, for predicting VI with high sensitivity and specificity.Öğe Full-Automatic Liver Segmentation on Abdominal MR Images(IEEE, 2018) Barstugan, Mucahid; Ceylan, Rahime; Asoglu, Semih; Cebeci, Hakan; Koplay, MustafaLiver segmentation process is a challenging field in computer-aided medical image analysis. This study implemented liver segmentation on Abdominal MR images. The liver was automatically segmented from images by morphological methods with high performance. Liver segmentation process was implemented on 56 MR images and the segmentation results were examined. In this study, an effective and fast method was proposed. Seven evaluation metrics (sensitivity, specificity, accuracy, precision, Dice coefficient, Jaccard rate, Structural Similarity Index (SSIM)) were used to test the performance of the proposed method. Mean Dice coefficient value was obtained as 91.701%, mean Jaccard rate value was obtained as 85.052% on 56 images. Segmentation duration for an image (T1 and T2 phases) was found as 2.828 seconds with the proposed method.Öğe Incidentally Detected Kaposi Sarcoma of Adrenal Gland with Anaplastic Features in an HIV Negative Patient(HINDAWI LTD, 2016) Celik, Zeliha Esin; Celik, Murat; Sen, Erdem; Cebeci, Hakan; Ata, Ozlem; Yavas, CagdasKaposi sarcoma (KS), a vascular tumor caused by infection with human herpesvirus 8 (HHV8), is a systemic disease that can present with cutaneous lesions with or without visceral involvement. Very few cases of KS, most of which were associated with AIDS, have been reported in the adrenal gland. Anaplastic transformation of KS is a rare clinical presentation known as an aggressive disease with local recurrence andmetastatic potential. We report here a 47-year-oldHIV negativemale presented with extra-adrenal symptoms and had an incidentally detected anaplastic adrenalKS exhibited aggressive clinical course. To the best of our knowledge, this is the first case of anaplastic primary adrenal KS withoutmucocutaneous involvement but subsequently developed other side adrenal metastases in an HIV negative patient.Öğe Intrahepatic Portal Vein Aneurysm : An Unusual Entity(UNIV CATHOLIQUE LOUVAIN-UCL, 2016) Nayman, Alaaddin; Guler, Ibrahim; Koplay, Mustafa; Erdogan, Hasan; Cebeci, Hakan[Abstract not Available]Öğe Multidetector computed tomography and magnetic resonance imaging findings in pulmonary hydatid cysts(2019) Cebeci, Hakan; Ozlu, Mustafa Yasir; Kilincer, Abidin; Uysal, Emine; Durmaz, Mehmet Sedat; Ucar, Ramazan; Sunam, Guven SadiAim: Computed tomography (CT) and magnetic resonance imaging (MRI) are diagnostic modalities in pulmonary hydatid disease.We aimed to present CT and MRI findings in pulmonary hydatid disease.Material and Methods: CT and MRI findings of pulmonary hydatid cysts from January 2011 through June 2018 were evaluatedretrospectively. CT images of 112 patients and MRI images of 27 patients were evaluated. Patients’ gender and ages, lesion numberand distribution, concomitant organ involvement, complications, HU density of lesions on CT and signal characteristics of lesions onMRI were analyzed. T2 hypointense rim, T1 and T2 signal intensity, daughter vesicle and detached membranes were the evaluatedparameters on MRI.Results: 147 hydatid cyst lesions of 119 (66 female, 53 male) patients with a mean age of 39.419.6 years were included in the study62 (52.1%) of patients had isolated lung involvement. 79 of 119 patients (66.4%) had solitary lung lesion. Mean CT density of cystswere 16 HU. 25 of 32 cysts showed T2 hypointense rim on MRI.Conclusion: Imaging plays important role in diagnosis and presurgical evaluation of pulmonary hydatid disease. CT is mostly usedin diagnosis; MRI should be a choice particularly in pediatric population.Öğe Pektus Ekskavatum Hastalarında Minimal İnvaziv Cerrahinin Akciğer Hacimlerine Olan Etkisinin Kantitatif Bt Volumetri ile Değerlendirilmesi(Selçuk Üniversitesi, 2020 Eylül) Cebeci, Hakan; Özlü, Mustafa Yasir; Kılınçer, Abidin; Öztürk, Mehmet; Yıldıran, Hüseyin; Sunam, Güven Sadi; Öncel, MuratAmaç: Pektus ekskavatum çocuklarda en sık görülen doğumsal göğüs duvarı anomalisidir. Bu çalışmada minimal invaziv cerrahi yapılan pektus ekskavatum hastalarında akciğer hacimlerinin kantitatif BT volumetri ile araştırılması amaçlanmıştır. Gereç ve Yöntem: Etik kurul onayı alındıktan sonra, Ocak 2012 ile Şubat 2018 tarihleri arasında minimal invaziv pektus ekskavatum cerrahisi yapılmış hastalar retrospektif olarak tarandı. Preoperatif ve postoperatif BT incelemesi bulunan hastalar çalışmaya dahil edildi. BT görüntüleri iş istasyonuna aktarılarak akciğer hacimleri ve Haller indeksleri hesaplandı. Bulgular: Çalışmaya dahil edilen hastaların (11 erkek, 1 kadın) ortalama yaşları 16,3 ± 3,7 bulundu. Postoperatif akciğer hacimlerinde anlamlı düzeyde artış saptandı. Total akciğer hacimlerindeki ortalama artış 695 ± 691 ml idi. Preoperatif Haller indeksi ortalaması 3,1’den 2,7’ye düştü ve arada anlamlı fark vardı (p=0,002). Sonuç: Kantitatif BT volumetri, minimal invaziv cerrahi yapılan pektus ekskavatum hastalarında akciğer hacmindeki değişiklikleri değerlendirilmesinde yararlı bilgiler sağlamaktadır.Öğe Perianal fistülün tanısında, sınıflandırılmasında ve değerlendirilmesinde Manyetik Rezonans Görüntüleme'nin önemi(2017) Sivri, Mesut; Koplay, Mustafa; Nayman, Alaaddin; Cebeci, Hakan; Güler, İbrahim; Uysal, Emine; Paksoy, YahyaAmaç: Manyetik rezonans görüntüleme (MRG) perianal bölgenin değerlendirilmesinde yüksek güvenilirliğe sahip non-invaziv bir yöntemdir. Bu çalışmada, perianal fistül tanısı alan hastaların preoperatif MRG bulguları ve özellikle sınıflandırmanın görüntülerle birlikte sunulması amaçlandı. Yöntemler: Perianal fistül tanısı alan 57 hastanın demografik özellikleri ve kontrastlı konvansiyonel ve difüzyon MRG bulguları retrospektif olarak değerlendirildi. Perianal fistül sınıflandırılması MRG bulgularını temel alan 'St James Üniversite Hastanesi (SJUH) Sınıflaması' referans alınarak yapıldı. Bulgular: Çalışmaya 57 hasta (44 erkek ve 13 kadın: yaş aralığı 18-72 yıl; ortalama yaş 45,7 yıl) dahil edildi. Hastaların büyük çoğunluğunun esas yakınması makatta ağrı ve akıntı idi. Bazı hastalar ek olarak makatta kaşıntı, şişlik ve kızarıklık semptomları da bildirdi. 37 hastada tip 1, dokuz hastada tip 2, dört hastada tip 3, beş hastada tip 4, iki hastada ise tip 5 fistül saptandı. Anal kanala açılım yerleri 21 hastada saat 6, 10 hastada saat 7 olarak saptandı. Konvansiyonel ve difüzyon MRG ile fistül traktı, apse varlığı, rektuma açılım yeri, sfinkterle veya komşu anatomik yapılarla ilişkisi tüm hastalarda net olarak değerlendirildi. Sonuç: Anal kanal ve perine derisi arasında meydana gelen anormal bağlantı perianal fistül olarak adlandırılmaktadır. Genellikle tekrarlayan anorektal apselerin komplikasyonudur. Crohn, tüberküloz, malignite gibi inflamatuar süreçlere sekonder de gelişebilir. Tedavide esas yöntem cerrahidir. Cerrahi yetersizliğine bağlı rekürrens oldukça sıktır. MRG bulgularının iyi bilinmesi ve cerrahın iyi yönlendirilmesi ile rekürrens oranı en aza indirgenebilmektedir.Öğe Quantitative analysis of thyroid gland blood supply in children and adolescents(Selçuk Üniversitesi, 2022) Uysal, Emine; Öztürk, Mehmet; Bayramoğlu, Zuhal; Cebeci, HakanAim: This study aims to determine the reference vascularization index (VI) values for the thyroid gland in healthy children and adolescents using Super microvascular imaging (SMI). It was also investigated that the correlation between thyroid vascularity and thyroid lobe volumes, age, sex, weight, height, and body mass index (BMI). Materials and Methods: One hundred and twenty-four children and adolescents without a thyroid gland and systemic disease, and medical history affecting the thyroid gland were included in the study. Participants with abnormal thyroid function tests were excluded from the study. Age, gender, height, and weight were recorded before ultrasonography and SMI examinations. After the grayscale ultrasonography, VI values for each participant were obtained using SMI. The association between the VI and thyroid lobe volumes, age, sex, weight, height, and BMI values were analyzed. Results: Median values of the age, height, weight, and BMI of 124 participants were 10 (6-12) years, 130 (120-152) cm, 30.5 (21-47) kg, 17.55 (15.37-21.14) kg/m2, respectively. Median (IQR) values of the left and right thyroid lobe volumes were 1.4 (0.9-2.07) mL and 1.9 (1.2-3.07) mL, respectively, and the mean VI value was 5.31±1.84%. There was no significant association of VI values with the thyroid lobe volume. Also, there was no relation between the mean VI values and the auxological parameters. Conclusion: This study defines the VI values of thyroid glands in healthy adolescents and children. It also demonstrated no correlation between VI values of the thyroid gland and thyroid lobe volume, sex, age, weight, height, and BMIÖğe Quantitative analysis of thyroid gland blood supply in children and adolescents(Selçuk Üniversitesi, 2022) Bayramoğlu, Zuhal; Uysal, Emine; Öztürk, Mehmet; Cebeci, HakanAim: This study aims to determine the reference vascularization index (VI) values for the thyroid gland in healthy children and adolescents using Super microvascular imaging (SMI). It was also investigated that the correlation between thyroid vascularity and thyroid lobe volumes, age, sex, weight, height, and body mass index (BMI). Materials and Methods: One hundred and twenty-four children and adolescents without a thyroid gland and systemic disease, and medical history affecting the thyroid gland were included in the study. Participants with abnormal thyroid function tests were excluded from the study. Age, gender, height, and weight were recorded before ultrasonography and SMI examinations. After the grayscale ultrasonography, VI values for each participant were obtained using SMI. The association between the VI and thyroid lobe volumes, age, sex, weight, height, and BMI values were analyzed. Results: Median values of the age, height, weight, and BMI of 124 participants were 10 (6-12) years, 130 (120-152) cm, 30.5 (21-47) kg, 17.55 (15.37-21.14) kg/m2, respectively. Median (IQR) values of the left and right thyroid lobe volumes were 1.4 (0.9-2.07) mL and 1.9 (1.2-3.07) mL, respectively, and the mean VI value was 5.31±1.84%. There was no significant association of VI values with the thyroid lobe volume. Also, there was no relation between the mean VI values and the auxological parameters. Conclusion: This study defines the VI values of thyroid glands in healthy adolescents and children. It also demonstrated no correlation between VI values of the thyroid gland and thyroid lobe volume, sex, age, weight, height, and BMI.Öğe A rare cause of low back pain: intraspinal synovial cyst containing gas(ELSEVIER SCIENCE INC, 2016) Cebeci, Hakan; Tekin, Ali Fuat; Sivri, Mesut; Kivrak, Ali Sami[Abstract not Available]Öğe Shear wave elastography evaluation of testes in patients with varicocele(Lippincott Williams and Wilkins, 2020) Erdoğan, Hasan; Durmaz, Mehmet Sedat; Arslan, Serdar; Gokgoz Durmaz, Funda; Cebeci, Hakan; Ergun, Osman; Soğukpınar Karaağaç, SedaWe aimed to determine histological damage in patients with varicocele by comparing the elasticity of their affected testes with that of their normal contralateral testes as well as normal testes of control subjects without varicocele using shear wave elastography (SWE). In total, 48 patients with varicocele (96 testes) and 52 control subjects (104 testes) were included in this study. Shear wave elastography values were measured in the longitudinal plane using an oval region of interest that covered as much of the testicular contours as possible. Fifty testes with varicocele were classified as group A, 46 normal contralateral testes of the same patients as group B, and 104 normal testes of control subjects as group C. The normal group C testes were randomly chosen from patients who had applied for ultrasonography for any reason and agreed to participate in the study. The testicular volume and SWE values were compared between these 3 groups. The average age of the patients was 28.45 years, and no significant difference in age was found between the 3 groups (P = 0.665). A significant difference in the testicular volume was found between groups A and C (P = 0.014). The SWE values were significantly higher in group A than in groups B and C (P < 0.001). No significant correlation was observed between the testicular volume and SWE values in any of the groups. Our results showed that SWE can be used as an effective technique to assess testicular stiffness in patients with varicocele to predict interstitial fibrosis and the severity of histological damage.Öğe Subarachnoid disseminated spinal multiple myxopapillary ependymomas presented with leg pain(ELSEVIER SCIENCE INC, 2016) Cebeci, Hakan; Kelesoglu, Kazim Serhan; Koplay, Mustafa[Abstract not Available]Öğe Superb microvascular imaging in the visualization of recanalization in deep vein thrombosis(EDIZIONI MINERVA MEDICA, 2018) Durmaz, Mehmet S.; Ozbakir, Bora; Cebeci, Hakan; Arslan, Serdar; Dagli, Mustafa; Arslan, Fatma Z.; Tekin, Ali F.BACKGROUND: The aim of this study was to evaluate the use of the superb microvascular imaging (SMI) technique in the detection of recanalization in deep vein thrombosis (DVT) and to compare the diagnostic value of SMI with that of conventional Doppler imaging (CDI) techniques. METHODS: The study consisted of 30 patients who were admitted to hospital within the first 72 h of a first episode of acute DVT. In total, 78 venous segments of 38 lower extremities were assessed. In all the segments, the venous lumen was totally occluded, intraluminal vascular signals were not detected by any of four vascular imaging techniques (color Doppler [CD], power Doppler [PD], color SMI [cSMI], and monochrome SMI [mSMI]) on admission. All the patients were treated with a standard treatment protocol (low-molecular weight heparin for a minimum of 5 days, followed by treatment with a vitamin K antagonist). One month after the treatment was initiated, grading systems that allowed a qualitative comparison of recanalized blood flow (BF) were applied to assess the performance of the four vascular imaging techniques in the detection of recanalization in the thrombosed venous segments. The diagnostic performances of the four imaging techniques in the detection of recanalized BF were statistically compared. RESULTS: The diagnostic performance of the imaging techniques in the detection of recanalized BF in the thrombosed venous segments was found as follows: mSMI > cSMI > PD > CD. CONCLUSIONS: SMI is a promising and effective method for evaluating the treatment efficacy and may provide more accurate information than CD and PD on recanalized BF in DVT.Öğe Trakeal Bronkus: Bir Olgu Sunumu(Selçuk Üniversitesi, 2019 Mart) Solmaz, Ekrem; Cebeci, Hakan; Tatar, Mehmet Cengiz; Fazlıoğulları, ZelihaTrakeal bronkus, trakeadan kaynaklanan sağ bronchus lobaris superior olup, ilk olarak 1785’te tanımlanmıştır. Genelde karinanın sağ üst tarafında, sağ akciğerin üst lobunun segmentum apicale’sini havalandıran nadir görülen konjenital bir anomalidir ve üç tipi vardır. Bir yıldır öksürük ve nefes darlığı şikayeti olan 41 yaşındaki erkek hastanın çekilen kontrastlı aksiyal ve koronal reformat toraks bilgisayarlı tomografisinin incelenmesi sonucunda sağ akciğerindeki bronchus lobaris superior’unun karina üstünden ayrıldığı görülmüştür. Tekrarlayan akciğer enfeksiyonu olan hastalarda ve özellikle Down sendromu olmak üzere konjenital kalp hastalıkları, aspleni sendromu ve kosta anomalileri gibi ek anomalisi olan vakalarda olası trakeobronşial anomaliler akılda tutulmalıdır. Bu hastalara uygulanan yanlış endotrakeal entübasyonun, atelektazi ve pnömotoraks gibi komplikasyonlara neden olabileceği düşünülmelidir. Bunun yanı sıra anestezi öncesi bilgisayarlı tomografi ile anatomik yapının değerlendirilmesi varyasyonların tanımlanması açısından önemlidir.
