Browsing by Author "Teke, Memik"

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The Role of Initial Radiologic and Clinical Manifestations in Predicting the Prognosis for Pneumonia Caused by H1n1 Influenza Virus
(Ame Publishing Company, 2014) Goya, Cemil; Yavuz, Alpaslan; Hamidi, Cihad; Cetincakmak, Mehmet Guli; Teke, Memik; Hattapoglu, Salih; Dusak, Abdurrahim
Objective: The aim of this study is to investigate the prognostic values of initial radiologic findings and preexisting medical conditions in pneumonia caused by H1N1 influenza virus that were obtained during the novel swine-origin influenza A (H1N1) virus (S-OIV) pandemic spread. Methods: Thirty-nine patients hospitalized due to H1N1 infection between September and December 2009 were retrospectively evaluated regarding the radiologic and clinical aspects. The thoracic computed tomography (CT) findings of all patients were assessed and accompanying conditions that may raise the morbidity were stated. The patients were divided into two groups as those who needed the intensive care unit administration and those treated with brief hospitalization; initial radiologic findings and preexisting medical situations of patients were compared among both groups respectively in terms of their prognostic value. Results: In 39 patients with H1N1 infection (21 males and 18 females; mean age of 53.9 +/- 14 in range between 19 and 99 years); the necessity of intensive care was significantly higher in patients with solely chronic obstructive pulmonary disease (COPD) (P=0.008, Odds ratio: 27) or co-existence of COPD and malignity (Odds ratio: 13); however, no statistically significant difference between two groups was observed regarding the radiologic facts or other combinations of accompanying medical conditions in terms of any effects to the prognosis. Conclusions: In the H1N1 (S-OIV) pandemic, we observed that merely the contribution to the diagnostic process; the radiologic features have no significance as being prognostic indicator. Additionally; the superposition of H1N1 infection in patients with either COPD or COPD by malignity was stated to be a potential risk factor in terms of increased morbidity.
The Role of Quantitative Measurement by Acoustic Radiation Force Impulse Imaging in Differentiating Benign Renal Lesions From Malignant Renal Tumours
(Springer-verlag Italia Srl, 2015) Goya, Cemil; Daggulli, Mansur; Hamidi, Cihad; Yavuz, Alpaslan; Hattapoglu, Salih; Cetincakmak, Mehmet Guli; Teke, Memik
The purpose of this preliminary study was to prospectively evaluate the diagnostic performance of acoustic radiation force impulse (ARFI) imaging for differentiating benign lesions from malignant renal tumours. Sixty patients with renal lesions were enrolled in the study; mean patient age was 49.52 +/- A 20.46 years (range 1-83 years) and patients included 30 men and 30 women. Lesions were categorised as benign (n = 19), malignant (n = 36) and infectious (n = 5) in origin. The shear wave velocities (SWVs) of the tumours and the intact parenchyma were determined by ARFI quantification, and the differences in the SWVs were compared among groups. The final diagnoses were determined via pathologic (n = 33), clinical (n = 13) and imaging findings (n = 14). The SWV values of the renal tumours were analysed according to the final diagnoses. The mean SWV value of the normal renal parenchyma was significantly different from that of all other lesions (p < 0.01). There was a significant difference between the SWV values of benign renal lesions including haematomas and the malignant renal lesions (p = 0.033). However, the SWV values of the infectious lesions and leiomyoma corresponded well with the malignant lesions. A Receiver operating characteristic (ROC) analysis demonstrated a cut-off value of 2.34 m/s between benign and malignant lesions, while sensitivity and specificity were determined to be 88 and 54 %, respectively. ARFI elastography with ARFI quantification may be useful for differentiating benign renal lesions from malignant renal tumours.