Browsing by Author "Hattapoglu, Salih"

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Acoustic Radiation Force Impulse Imaging for Evaluation of Renal Parenchyma Elasticity in Diabetic Nephropathy
(Amer Roentgen Ray Soc, 2015) Goya, Cemil; Kilinc, Faruk; Hamidi, Cihad; Yavuz, Alpaslan; Yildirim, Yasar; Cetincakmak, Mehmet Guli; Hattapoglu, Salih
Objective: The goal of this study is to evaluate the changes in the elasticity of the renal parenchyma in diabetic nephropathy using acoustic radiation force impulse imaging. SUBJECTS AND METHODS. The study included 281 healthy volunteers and 114 patients with diabetic nephropathy. In healthy volunteers, the kidney elasticity was assessed quantitatively by measuring the shear-wave velocity using acoustic radiation force impulse imaging based on age, body mass index, and sex. The changes in the renal elasticity were compared between the different stages of diabetic nephropathy and the healthy control group. RESULTS. In healthy volunteers, there was a statistically significant correlation between the shear-wave velocity values and age and sex. The shear-wave velocity values for the kidneys were 2.87, 3.14, 2.95, 2.68, and 2.55 m/s in patients with stage 1, 2, 3, 4, and 5 diabetic nephropathy, respectively, compared with 2.35 m/s for healthy control subjects. Acoustic radiation force impulse imaging was able to distinguish between the different diabetic nephropathy stages (except for stage 5) in the kidneys. The threshold value for predicting diabetic nephropathy was 2.43 m/s (sensitivity, 84.1%; specificity, 67.3%; positive predictive value, 93.1%; negative predictive value 50.8%; accuracy, 72.1%; positive likelihood ratio, 2.5; and negative likelihood ratio, 0.23). CONCLUSION. Acoustic radiation force impulse imaging could be used for the evaluation of the renal elasticity changes that are due to secondary structural and functional changes in diabetic nephropathy.
Clinical Impacts of Juxtapapillary Duodenal Diverticulum Detected on Computed Tomography
(Bentham Science Publ Ltd, 2022) Dundar, Ilyas; Goya, Cemil; Hattapoglu, Salih; Ozkacmaz, Sercan; Ozgokce, Mesut; Turkoglu, Saim; Turko, Ensar
Background: Diverticula are commonly observed in the duodenum. Duodenal Diverticulum (DD) usually does not give symptoms throughout life and is diagnosed by coincidence. However, it may present with different symptoms in patients. Objective: This study aims to evaluate the prevalence of DD and Juxtapapillary Duodenal Diverticilium (JDD) and its association with other possible pathologies and to determine its clinical impact by using Computed Tomography (CT). Methods: This retrospective observational study, which was taken consecutively between the years of 2013-2020, was evaluated in the Radiology Department. The total number of cases was 4850 (male-2440; female-2410). CT images were evaluated by two experienced radiologists at the workstation. DD and JDD prevalence and clinical findings in the hospital registry system were examined. Results: The age of the patients included in the study ranged from 17 to 92 years (mean age 46.94 +/- 16.42). In patients with DD (female-130; male-101), mean age was 62.24 +/- 12.69 (21-92). The prevalence of DD was 4.76% (n=231). The prevalence of JDD was 4.02% (n=195) and increased with age (p<0.01). The average diameter of the JDD was measured as 23.29 +/- 8.22 (9.5-55.3) mm. A significant positive correlation was found between age and DD diameter (p=0.039). DDs were found most commonly 84.42% (n=195) in the second segment of the duodenum as JDD. In patients with JDD, the mean diameter of choledochus and wirsung canal were 6.7 +/- 2.4 (3-15.3) mm and 0.31 +/- 0.1 (0.1-6.5) mm respectively. The choledochal diameter was correlated with the JDD size (p - 0.004). Cholelithiasis (n 56), choledocholithiasis (n 20), cholecystitis (n=52), diverticulitis (n=15), duodenitis (n=37), pancreatitis (n=5) and hiatal hernia (n=60) with JDD were observed. Periampullary carcinoma was detected in one patient. Conclusion: Our study shows that cholelithiasis, choledocholithiasis, cholecystitis, diverticulitis, duodenitis, pancreatitis may be associated with JDD. Therefore, in contrast-enhanced abdominal CT scans taken for various reasons, investigation of the presence and characteristics of JDD and detection of pathologies that may be associated with JDD are important for patients to benefit from early diagnosis and treatment opportunities and to take precautions against possible complications.
Does Contrast-Enhanced Computed Tomography Raise Awareness in the Diagnosis of the Invisible Side of Celiac Disease in Adults
(Springer, 2022) Goya, Cemil; Dundar, Ilyas; Ozgokce, Mesut; Turko, Ensar; Ozkacmaz, Sercan; Durmaz, Fatma; Hattapoglu, Salih
Purpose This study aimed to evaluate the diagnosis and determine major and minor criteria of celiac disease (CD) with the malabsorption patterns (MABP) in the small intestine and colon on computed tomography (CT) and additional CT findings. Methods This retrospective study was conducted with 116 patients diagnosed with CD, 14 CD patients recovering with treatment, and 35 control patients with non-CD. All patients had CT examinations and histopathological diagnoses. The sensitivity, specificity, PPV, NPV, and accuracy values of each CT finding defined in the literature were statistically evaluated. According to the patient and control groups, the numerical values of the findings and the sensitivity and specificity values were measured according to this cut-off value. The distribution of CT findings according to pathological Marsh data was evaluated in CD patients. Results Sensitivity and specificity were found to be higher in small bowel MABP findings, mesenteric hypervascularity, and increased SMV/aorta diameter. There was a numerically significant difference in MDCT findings between the control and pathological Marsh groups. In the ROC analysis performed in terms of the total numerical values of each MDCT finding observed between the groups, it was found that there were more than 7 MDCT findings, 100% sensitivity, and 92% specificity. The presence of four major and three minor criteria or three major and four minor criteria were considered significant. Conclusions Being aware of CT findings below the iceberg that may suggest CD in abdominal CT examinations performed in patients with atypical clinical and malabsorption findings or other nonspecific findings may prevent diagnostic delay and unnecessary procedures. [GRAPHICS] .
The Role of Acoustic Radiation Force Impulse Elastography in the Differentiation of Infectious and Neoplastic Liver Lesions
(Sage Publications inc, 2015) Goya, Cemil; Hamidi, Cihad; Yavuz, Alpaslan; Hattapoglu, Salih; Uslukaya, Omer; Cetincakmak, Mehmet Guli; Urakci, Zuhat
We aimed to evaluate the effectiveness of acoustic radiation force impulse (ARFI) elastography in differentiating between hepatic lesions. The prospective study included 117 patients with liver masses. Shear wave velocity (SWV) values for lesions were determined by ARFI imaging and compared statistically. The difference between SWV values for benign and malignant hepatic masses was significant (p < 0.01). The threshold SWV value for malignant hepatic lesions was established at 2.52 m/s, and the sensitivity and specificity of this cut-off value were 97% and 66%, respectively. We concluded that ARFI elastography provides supplementary data that aid in the differential diagnosis of liver masses.
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.