Browsing by Author "Sakarya, M.E."

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Clinical Value of Preoperative Intraoral Ultrasonography in Tonsillectomy
(1998) Kutluhan, A.; Sakarya, M.E.; Çankaya, H.; Akkaya, S.
In this prospective study, 43 chronic tonsillitis patients underwent intraoral ultrasonography preoperatively and the width and thickness of tonsils and tonsillocarotid distances were measured. Positive correlation was obtained in postoperative measurements compared with ultrasonographic measurements of tonsils. The mean tonsillocarotid distances were 8.6 mm in the left and 8.25 mm in the right tonsillar fossa. This study showed that preoperative intraoral ultrasonography was to be help of tonsillectomy operations particularly in surgical anatomical orientation.
Congenital Brain Abnormalities: Pictorial Essay
(Yuzuncu Yil Universitesi Tip Fakultesi, 2015) Batur, A.; Sakarya, M.E.
Among all fetal anomalies, the central nervous system anomalies represent one of the most frequently involved structures with an estimated incidence of 1 per 100 births. It is mostly difficult to make an accurate diagnosis of congenital brain malformation, based on clinical findings; thus use of computed tomography (CT) or magnetic resonance imaging (MRI) is essential in these cases. The aim of this essay is to state the imaging findings of the main, most prominent congenital brain abnormalities and to present a practical classification of the entity. © 2015 Yuzuncu Yil Universitesi Tip Fakultesi. All rights reserved.
Multidetector Computed Tomography in the Diagnosis of Parathyroid Adenomas: Contribution of Contrast Enhancement Pattern To Diagnosis
(2004) Harman, M.; Algün, E.; Ayakta, H.; Sakarya, M.E.; Etlik, O.
PURPOSE: Contrast enhancement patterns of parathyroid adenomas in the arterial and venous phases were evaluated with multidetector computed tomography and specificity of the method to characterize the lesions was investigated. MATERIALS AND METHODS: Arterial and venous enhancement patterns of parathyroid adenomas were evaluated retrospectively with multidetector computed tomography in 12 patients. All adenomas were removed surgically and the diagnosis was confirmed histopathologically. An area from the mandibular angle to the aortic arch was scanned with 1.5 mm section thickness in the arterial phase (20 seconds delay time) and venous phase (70 seconds delay time) after bolus injection of 50 ml of iodinated contrast media. Arterial and venous contrast enhancement of parathyroid adenomas was evaluated in the axial and coronal reformat images. RESULTS: Ten (83.3%) of 12 parathyroid adenomas showed a heterogeneous enhancement with a hypodense small central area in the arterial phase and a homogeneous enhancement in the venous phase. However, two small lesions, four and five mm in diameter respectively, showed homogeneous contrast enhancement in the arterial phase unlike the larger lesions which displayed a hypodense center in this phase. CONCLUSION: Dynamic scanning with multidetector computed tomography after contrast administration may be helpful in characterizing parathyroid adenomas.
Posterior Cerebral Artery Involvement in Moyamoya Disease
(2004) Harman, M.; Etlik, O.; Unal, O.; Sakarya, M.E.
A ten-year-old girl arrived at the hospital with progressive loss of muscular strength on the right side of the body. The cranial MRI showed left fronto-parietal ischemia and atrophic changes in the left parietal lobe. Brain MRI initially disclosed a narrow left MCA. MRA and digital angiography confirmed the diagnosis of brain obstructive chronic vascular disease (Moyamoya). Angiography results demonstrated occlusion of the left MCA and right posterior cerebral artery, with Moyamoya vessels. It therefore appears that in some patients Moyamoya disease is accompanied by posterior circulation involvement.
Power Doppler Sonography in the Diagnosis of Graves’ Disease
(2000) Arslan, H.; Unal, O.; Algün, E.; Harman, M.; Sakarya, M.E.
In addition to color and pulsed Doppler sonography findings, we aimed to describe power Doppler sonography findings in Graves’ disease in this study. Twenty-three patients with Graves' disease were imaged with gray-scale, color and power Doppler sonography. Twenty normal volunteers were examined by the same equipment and the same technique as a control group. A subjective grading system was used to categorize the vascularization in pulsed Doppler sonography images from normal to markedly increased vascularization. Power Doppler sonography exhibited diffuse hypervascularity in the thyroid gland in all patients. The flow was covering about all the parenchyma. Four patients showed mild, 12 patients moderate and seven patients marked vascularity. The intensity of power Doppler flow pattern was not correlated with the severity of the disease. This study demonstrated that power Doppler sonography is a convenient, time saving, inexpensive and noninvasive method as compared with isotope scan and some other laboratory tests for confirmation of Graves’ disease. © 1999 Elsevier Science Ireland Ltd.
The Role of Power Doppler Sonography in the Evaluation of Superficial Soft Tissue Abscesses
(1998) Arslan, H.; Sakarya, M.E.; Bozkurt, M.; Ünal, Ö.; Dilek, O.N.; Harman, M.
Objective: To evaluate the efficacy of power Doppler ultrasonography in depicting increased vasculature and hyperemia around the superficial soft tissue abscess. Materials and methods: 21 patients with soft tissue abscess were evaluated with gray scale imaging, color Doppler sonography, power Doppler sonography and computed tomography. In each case attempts were made using power Doppler sonography to demonstrate any areas of increased vascularity around the lesion. The results were compared with computed tomographic findings. Results: Peripheral hyperemia and increased vasculature were demonstrated with power Doppler sonography in 19 of 21 patients with soft tissue abscess. The hyperemic area demonstrated around the wall of the abscess by power Doppler sonography was similar to the enhanced area shown by computed tomography performed after contrast administration. Conclusion: Power Doppler sonography shows increased vasculature and hyperemia in the wall of abscesses. Therefore, power Doppler sonography can be used to assist with the diagnosis of superficial soft tissue abscess.
The Role of Power Doppler Ultrasonography in the Diagnosis of Acute Pyelonephritis
(1998) Sakarya, M.E.; Arslan, H.; Erkoç, R.; Bozkurt, M.; Atilla, M.K.
Objective: To assess the ability of power Doppler ultrasonography (PDU) to detect acute pyelonephritis and to compare the findings from PDU with those from enhanced computed tomography (CT). Patients and methods: Eleven patients (mean age 18.5 years, range 5-37) admitted to hospital with a clinical diagnosis of pyelonephritis were assessed with PDU and enhanced CT, the latter providing the reference method. Results: The imaging studies showed normal findings in three patients; a single focus of pyelonephritis was detected by CT in six, whereas a matching defect was detected on PDU in five, with PDU failing to detect an infective focus in one. Multifocal diffuse pyelonephritis was diagnosed correctly by enhanced CT and PDU in two patients. Conclusion: Power Doppler ultrasonography had an overall sensitivity of 88% and complete specificity in the evaluation of patients with acute pyelonephritis.
The Role of Power Doppler Ultrasonography in the Diagnosis of Prostate Cancer: a Preliminary Study
(1998) Sakarya, M.E.; Arslan, H.; Unal, O.; Atilla, M.K.; Aydin, S.
Objective. To determine the role of transrectal power Doppler ultrasonography (PDU) in the diagnosis of prostate cancer. Patients and methods. Thirty-six patients (mean age 66.4 years, SD 7.7, range 59-82) with possible prostate cancer, suspected from an abnormal digital rectal examination or elevated prostate specific antigen level, underwent transrectal ultrasonography, transrectal PDU and biopsy. The vascularity on PDU was graded on a scale of 0-2, where grade 1-2 was considered positive and grade 0 negative. Results. The vascularity was grade 2 in 11 patients, grade 1 in 11 and grade 0 in 14; 20 of the 36 (56%) patients had prostate cancer. Of the 22 patients positive on PDU, 18 had malignant disease and four benign; two of 20 patients with histopathologically confirmed malignancy had a normal PDU. The sensitivity of PDU was 90%, the specificity 75% and the positive predictive value 82%, Conclusion. Focal hypervascularity on PDU was associated with an increased likelihood of prostate cancer. Although ultrasonography alone cannot detect all cancers, even using PDU, the technique appears to increase the sensitivity and to help identify appropriate sites for biopsy.