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Öğe Bronchocele: Demonstration By 3D Volume Rendering Imaging with Multidetector Computed Tomography: Case Report(ORTADOGU AD PRES & PUBL CO, 2011) Sakarya, Mehmet Emin; Ceran, Sami; Koc, Osman; Ozbek, Orhan; Karabekmez, Leman G.; Odev, KemalCongenital bronchial atresia (CBA) is a rare congenital abnormality of the lung. It results from a congenital focal obliteration of a proximal segmental or sub-segmental bronchus with normal development of distal structures. Because of proksimal bronchial stenosis, the distal bronchi became filled with mucus and form a bronchocele. Three dimensional (3D) volume rendering (VR) imaging was performed with 64-slice multidetector computed tomography (MDCT) equipment in a patient with CBA and bronchocele. 3D VR images clearly revealed branching nonenhancing tubular structure and the adjacent lung with features of air trapping. A diagnosis of bronchocele was made radiologically. We report a case of bronchocele documented by 3D image reconstruction and VR images using 64-slice MDCT. In this article we report that, the radiologic findings of the broncocele can be shown more clearly with 3D VR technique than standan CT imaging.Öğe Detection and quantification of the parenchymal abnormalities in emphysema using pulmo-CT(PERGAMON-ELSEVIER SCIENCE LTD, 2007) Temizoz, Osman; Etlik, Omer; Sakarya, Mehmet Emin; Uzun, Kursat; Arslan, Halil; Harman, Mustafa; Demir, Mustafa KemalWe aimed to determine the degree and extent of parenchymal abnormalities on pulmo-CT in patients with emphysema. The study group consisted of 29 patients (18 male, I I female; mean age 57.9. L 13). The diagnosis was based on clinical symptoms, pulmonary function tests (PFT) values, and chest CT findings. All of the patients CT scans were obtained during suspended deep inspiration from the apices to the costophrenic angles. The mean lung attenuation (MLD) and parenchymal abnormalities related to emphysema were quantitatively calculated with tables, histograms and graphics at the whole lung. The lung density measurements revealed a mean density of -898.48 +/- 51.37 HU in patients with emphysema and -825.1 +/- 25.5 HU in control group. In addition, mean percentage of subthreshold attenuation values was found as 12.03 +/- 15.75 and 1.07 +/- 0.83 in patients with emphysema and control group, respectively. Compared with control group, the patients with emphysema had a significantly lower inspiratory MLD (p < 0.05). Additionally, statistically significant correlations were seen between the MLD and percentage of subthreshold values (r = 0.44, p < 0.05). In contrast, there was poor correlation between PFT measurements and the subthreshold values. In conclusion, pulmo-CT is a quick, simple method for quantitative confirmation of the presence of parenchymal abnormalities of lung as mosaic attenuation and should be used in combination with other radiological methods and PFT as it gives additional information to routine examinations in patients with emphysema. (c) 2007 Elsevier Ltd. All rights reserved.Öğe Medical Diagnosis of Rheumatoid Arthritis Disease From Right and Left Hand Ulnar Artery Doppler Signals Using Adaptive Network Based Fuzzy Inference System (ANFIS) and MUSIC Method(ELSEVIER SCI LTD, 2010) Özkan, Ali Osman; Kara, Sadık; Şallı, Ali; Sakarya, Mehmet Emin; Güneş, SalihRheumatoid arthritis (RA) is a multi-systemic autoimmune disease that leads to substantial morbidity and mortality. In this paper, as spectral analysis methods of Multiple Signal Classification (MUSIC) method is used in order to extract the significant features from the right and left hand Ulnar artery Doppler signals for the diagnosis of RA disease. The MUSIC method has been used as subspace method. To extract features from Doppler signals obtained from the right and left hand Ulnar arterial the MUSIC method model degrees of 5, 10, 15, 20, and 25 were used. Then, an adaptive network based fuzzy inference system (ANFIS) was applied to features extracted from the right and left hand Ulnar artery Doppler signals for classifying RA disease. The methods are not new, but the study has a novelty in that the application area of these methods is new. In the hybrid model, the combination of MUSIC and ANFIS yielded classification accuracies of 95% (for a model degree of 20) using the right hand Ulnar artery and classification accuracies of 91.25% (for a model degree of 10) using left hand Ulnar artery Doppler signals in the diagnosis of RA disease. The proposed approach has potential to help with the early diagnosis of RA disease for the specialists who study this subject.Öğe Propranolol usage in subglottic hemangioma: Case report(2011) Pekcan, Sevgi; Köksal, Y.; Altıntepe, F.; Aslan, Ebubekir; Göktürk, Bahar; Sakarya, Mehmet Emin; Ödev, KemalInfantile hemangiomas are the most common tumors of infancy. Majority of them occur in the head and neck region and rarely in the respiratory tract. Oral corticosteroids are first-line drugs for such troublesome hemangiomas; interferon alfa and vincristine are used less often because of their toxic effects. Recent literature has described propranolol treatment for the vascular tumors. We present a 20-month-old girl with subglottic hemangioma whose respiratory symptoms did not resolve completely with corticosteroid treatment despite accompanying side effects and who was succesfully treated with oral propranolol. No side effects of propranolol was observed. As a conclusion, we propose that propranolol is a safe and effective treatment which markedly shortens the disease course and which should now be used as a first-line treatment in infantile subglottic hemangiomas. Copyright © 2011 by Türkiye Klinikleri.Öğe Pulmonary MR Angiography in Swyer-James Syndrome(2009) İlerisoy Yakut, Zeynep; Sakarya, Mehmet Emin; Paksoy, Yahya; Koç, Osman; Özbek, Orhan; Süerdem, Mecit; Uzun, Kürşat; Kıvrak, Ali Sami; Ödev, KemalAim: The aim of this study was to investigate the pulmonary magnetic resonance angiography (MRA) imaging findings in Swyer - James syndrome (SJS) as a alternative imaging modalities. Methods: Thirteen patients had posteroanterior inspiratory/expiratory chest X-ray films and pulmonary MRA with SJS (6 males, 7 females) were retrospectively studied. Gradient-echo pulmonary MRA was performed in all patients with a 1.5 T MR unit. MRA imaging was performed in a single breath-hold during the injection of contrast media. Image analysis of the patients was performed. The results of pulmonary artery diameters and pulmonary peripheral vasculature were compared between normal sides versus the affected sides. Statistical analysis was performed with the Student t test. Results: The smaller pulmonary artery on the affected side with poor peripheral vasculature was observed with gadolinium-enhanced gradient-echo MRA in all patients. There was a significant difference between the diameters of the pulmonary arteries of the normal versus the disease sides (p< 0.0005). Conclusion: MRA successfully depicted the small pulmonary artery with diminished peripheral vasculature in patients with SJS. This study showed the pulmonary MRA imaging could be used as a alternative imaging modalities in the evaluation of patient with SJS.
