Browsing by Author "Pabusçu, Y"
Now showing 1 - 12 of 12
Results Per Page
Sort Options
Item A province-based study using sampling method to investigate the prevalence of cystic echinococcosis among primary school children in Manisa, TurkeyOk, UZ; Özkol, M; Kilimcioglu, AA; Dinç, G; Bayindir, P; Östan, I; Pabusçu, Y; Özcan, C; Korkmaz, M; Coskun, S; Yüksel, H; Girginkardesler, NA province-based field study using a portable ultrasound scanner (US) was performed for the first time using sampling method to investigate the prevalence of cystic echinococcosis (CE) in primary school children in Manisa, Turkey. A total of 6093 children from 37 primary schools was selected as the representative sample of the total number of 166,766 primary school children, and examined by the US. Prevalence was found to be 0.15%, as nine children were diagnosed with CE, seven new and two previously operated. A questionnaire applied to the children revealed no significant relationship between the risk factors and the infection (P > 0.05). In conclusion, it would be advisable to repeat the study at the same schools in eight years' time, in order to evaluate the efficacy of the control programs, since nearly all students involved in this study will have graduated by then. Besides, it is recommended to choose a sampling group to find the prevalence of an infection in a defined region. (c) 2007 Elsevier B.V. All rights reserved.Item Which temporal bone anatomical structures and pathologies could be best visualized by applying reconstruction to cross-sections obtained on an axial plane?Bostanci, IE; Düzgün, F; Ovali, GY; Tarhan, S; Pabusçu, YObjective: In this study, we aimed to identify the position in which temporal bone anatomical structures and pathologies could be best visualized by applying reconstruction to cross-sections obtained on an axial plane in temporal bone computed tomography (CT) scans. Methods: Sixty patients were examined with temporal bone CT between July 2008 and March 2009. We obtained multiplanar reformatted images by applying retro-reconstruction on various planes from the axial plane sections. Results: We determined that the reconstructed images increased the anatomical and pathological details and significantly contributed to evaluating the relationship between anatomical structures and their pathologies with other normal components. Conclusion: Obtaining multiplanar reformatted images by retro-reconstruction decreased the need for visualization of coronal sections used in standard temporal bone CT exams since the anatomical details were diversified using the new planes. In addition, the dose of radiation received by the patients and the duration of the examination could be reduced by eliminating routine coronal plane sections and obtaining new images using retro-reconstruction.Item Neuro-otologic applications of MRIBulakbasi, N; Pabusçu, YMagnetic resonance imaging (MRI) has increasingly new applications in neuro-otology. The aim of this review was to summarize MRI applications in neuro-otology and make a correlation between neuro-otologic anatomy and MR images. Different MRI techniques have been described in the imaging of different neuro-otologic structures. In particular, we discuss the effectiveness, indications, and techniques of MRI in the demonstration of neuro-otologic tracts and their related pathologies. MRI should be the first choice imaging modality for the evaluation of retrocochlear pathologies.Item The significance of venous dominance in color Doppler ultrasound for the diagnosis of primary nodular skin lesionsÖzkol, M; Yoleri, L; Demir, MA; Dernireli, P; Pabusçu, YThe aim of this study was to investigate the significance of color Doppler ultrasound (CDUS) findings in the differential diagnosis of suspicious nodular skin lesions and to compare the results according to the Giovagnorio 1999 classification and the modified classification. Forty nodular skin lesions were evaluated with CDUS and US. The number of arteries and veins was recorded in hypervascular lesions. Findings were compared with histopathological results. The specificity and predictivity of the modified classification were higher than those of the Giovagnorio 1999 classification. (c) 2006 Elsevier Inc. All rights reserved.Item Effectiveness of diffusion-weighted magnetic resonance imaging (DW-MRI) in the differentiation of thyroid nodulesÖzer, BM; Pabusçu, Y; Tarhan, S; Ovali, GY; Aydede, H; Demireli, P; Karadeniz, TBackgroundThe aim was to investigate which of two different b values (b 500 s/mm(2) and b 800 s/mm(2)) are more effective in the differentiation of benign-malignant nodules using Diffusion-Weighted Magnetic Resonance Imaging (DW-MRI).Materials and methodsPatients presenting with a preoperative diagnosis of nodular goiter or multinodular goiter were included in this study. These patients underwent neck MRI examinations, and their cases were analyzed retrospectively. A total of 26 patients were included in the study. A total of 46 nodules meeting the study criteria were examined. Measurements were performed on Apparent Diffusion Coefficient (ADC) maps of patients at two different b values (b 500 s/mm(2) and b 800 s/mm(2)), and the results were compared with histopathological findings.ResultsOut of a total of 46 nodules, 37 were identified as benign, and 9 as malignant based on histopathological analysis. The mean ADC value at b 500 was lower in malignant nodules (1259.65 +/- 328.13) compared to benign nodules (19037.48 +/- 472.74). Similarly, the mean ADC value at b 800 was lower in malignant nodules (1081.72 +/- 200.23) compared to benign nodules (1610.44 +/- 418.06). When a cut-off value of 1.1 x 10- 3 was accepted for the differentiation of pathology, the sensitivity for distinguishing pathology with ADC values at b 500 was 83.3%, with a specificity of 90.0%, and for ADC values at b 800, the sensitivity was 71.4%, with a specificity of 89.7%.ConclusionDW-MRI without the need for contrast agent administration is a useful method in the differentiation of benign-malignant thyroid nodules.Item Age- and Sex-Related Morphometric Changes and Asymmetry in the Orbito-Zygomatic RegionErdogan, K; Tatlisumak, E; Ovali, GY; Pabusçu, Y; Tarhan, SThe aims of this study were to obtain cephalometric data of orbito-zygomatic skeleton using CT axial images and to determine the presence of sexual dimorphism, normal range of facial asymmetry, and the age-related changes. This study used data from 315 CT scan series of skeletally normal subjects (159 males and 156 females) between the ages of 18 to 90. Two different levels of axial sections were used. In total, 11 measurements were performed and 5 of them were bilateral. The mean values and standard deviations were calculated. Gender and age related changes and asymmetry degree were investigated. Mean values of measurements except left medial orbital wall length, right and left medial orbital wall protrusion, right and left lateral orbital wall angle were significantly larger in males for all age groups. Majority of the measurements was formed by the individuals with larger right side. Similar tendencies were observed for craniofacial asymmetry in both sexes and in different age groups. There were no significant craniofacial asymmetries between age and gender groups in terms of the cephalometric measurements. Mid-interorbital distance had a negative correlation (r = -0.11 and P = 0.043) and interzygomatic buttress distance had a positive correlation (r = 0.15 and P = 0.005) with age. Morphological properties such as sexual dimorphism, symmetry, age related changes are important parameters especially for plastic surgery discipline. The authors hope the data can be helpful in diagnosis and surgical treatment of craniofacial diseases, estimating the prognosis and preparation of the facial prosthesis.Item Radiologic features of lumbar spine in ochronosis in late stagesBayindir, P; Ovali, GY; Pabusçu, Y; Temiz, C; Duruoz, TOchronosis is a rare hereditary disorder of tyrosine metabolism. Severe degenerative arthritis and spondylosis occur in the later stages of this disease. Radiologic examinations may reveal changes considered almost pathognomonic for ochronosis. We present the radiologic features of the lumbar spine in two ochronotic patients who were diagnosed after radiologic examinations in the late stages of the disease.Item Pathological Fracture in Odontoid Process in Multiple MyelomaAcar, EA; Demirci, U; Pabusçu, Y; Miskioglu, HM; Aydogdu, IItem Is Computed Tomography Perfusion a useful Method for Distinguishing between Benign and Malignant Neck Masses?Düzgün, F; Tarhan, S; Ovali, GY; Eskiizmir, G; Pabusçu, YEvaluation of neck masses is frequent in ear, nose, and throat clinics. Successful outcomes associated with neck mass are directly related to rapid diagnosis and accurate treatment for each patient. Late diagnosis of a malignant mass increases the magnitude of morbidity and the rate of mortality of the disease. Although magnetic resonance imaging and computed tomography (CT) examinations are important tools for evaluating head and neck pathologies, they do not allow functional evaluation. For this reason, CT perfusion (CTP) as a method of functional evaluation for distinguishing benign from malignant masses is gaining attention. The utility of CTP for distinguishing between benign and malignant mass lesions was investigated in 35 patients with masses in the neck (11 benign, 24 malignant). CTP was shown to be a useful method for identifying head and neck tumors and blood volume values to enable the differential diagnosis of benign and malignant head and neck tumors.Item Videofluoroscopic evaluation of the swallowing function after supracricoid laryngectomyYücetürk, A; Tarhan, S; Günhan, K; Pabusçu, YThis study was designed to evaluate the swallowing function in patients with supracricoid laryngectomy (SCL) compared to normal subjects and to search for the factors affecting postoperative aspiration. Ten patients who underwent SCL with cricohyoidopexy (CHP) for primary laryngeal squamous cell carcinoma were included in the study. The control group consisted of 13 normal adult volunteer men with similar ages. The swallowing act of the subjects was evaluated by using videofluoroscopy (VFS) and videolaryngostroboscopy (VLS). The movements of the larynx were measured with regard to the hyoid bone, mandible and vertebral spine. The patients with SCL-CHP, except for two who had slight aspiration, had effective and near normal swallowing regarding the measurements of the movements of the hyoid bone. They could tolerate a near-normal oral diet. We have observed that the preventive precautions for aspiration are preserving the superior laryngeal nerves, suturing and positioning the cricoarytenoid unit as anterosuperiorly as possible, early decannulation and early onset of swallowing rehabilitation; the risk factors for aspiration are advanced stage of cancer, postoperative radiation and shortening of bolus transit time. VFS is useful for the patients with postoperative aspiration, because it is the definitive technique for anatomical and physiological evaluation of swallowing. We consider that the parameters of VLS and VFS, such as tongue base-arytenoid contact, presence of bolus splitting, pseudoepiglottis function, maximal opening of the pharyngoeosophageal sphincter and total movement of hyoid bone are important criteria to evaluate swallowing.Item Value of Ultrasonography on Diagnosis and Assessment of Pain and Grip Strength in Patients with Lateral EpicondylitisTarhan, S; Ünlü, Z; Ovali, GY; Pabusçu, YObjective: Lateral epicondylitis (LE) is generally diagnosed clinically. Ultrasonography (US) can provide useful information about the location, extent, and severity of LE. Our objective was to use US to confirm LE and to investigate the relationships between pain, grip strength, physical examination, and disability in these patients. Material and Methods: Fifty-two patients with unilateral LE were examined by US. Pain and functional status were assessed using a visual analog scale (VAS), physical functioning and bodily pain scales of the Medical Outcomes Study 36-Item Short-Form Health Survey (SF-36), and a patient-rated forearm evaluation questionnaire (PRFEQ). Grip strength and manual tests for LE were evaluated. Results: Clinical diagnosis of LE was confirmed by US in 28 (53.8%) patients. Our results showed close associations between clinical examination findings and SF-36 and PRFEQ assessments with pain in patients who had sonographic abnormalities. Grip strength was also correlated with clinical and functional evaluations in these cases. Conclusion: We concluded that evaluation of disability in LE requires methods different from those included in the traditional clinical examination. Pain and grip strength measurements provide numerical and quantitative data for evaluation of severity and disability in patients with sonographic findings of LE. (Turk J Rheumatol 2009; 24: 123-30)Item Transformation of the maxillary bone in adults with nasal polyposis: a CT morphometric studySerter, S; Günhan, K; Can, F; Pabusçu, YPURPOSE Nasal polyposis (NP) in adult population is a common problem in otorhinolaryngology outpatient practice. Computed tomography (CT) is the ideal imaging method to investigate paranasal sinus diseases. There is yet no study in the literature measuring the morphometry of maxillary bone in NP. The objectives of this study are to correlate the airway variables obtained by CT findings of both chronic nasal airway obstruction and control group in an adult population, and to investigate whether the bony structure of the airway is affected or not. MATERIALS AND METHODS Forty NP cases that were followed up for 1-5 years by an otorhinolaryngologist were included in this retrospective study. Forty subjects who had normal findings reported on paranasal CT scans were randomly selected from our CT database as the control group. Maxillary and palatine bones (PB) were evaluated: the plane angle between the maxillary alveolar processes (MAP) and PB, and depth of the maxillary arch of both groups were compared. RESULTS The mean angle between MAP and PB plane was wider in the NP group (right 128.1 +/- 8.5 degrees and left 126.2 +/- degrees 8.5) than control group (right 106.6 +/- 8.1 degrees and left 105.5 +/- 7.3 degrees). The mean depth of maxillary arch was significantly smaller in the NP group (1.2 +/- 0.2 cm) than in the control group (1.4 +/- 0.2 cm). CONCLUSION There could be a relationship between nasal polyposis in adults and maxillary shape. The flattening and shallowing of the maxillary arch detected in patients with NP may indicate that the bony structural changes continue in adulthood.