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    Assessment of pineal gland volume and calcification in healthy subjects: Is it related to aging?
    (Ubiquity Press, 2016) Beker Acay, Mehtap; Turamanlar, Ozan; Horata, Erdal; Ünlü, Ebru; Fidan, Nurdan; Oruç, Serdar
    Purpose: The human pineal gland is a small neuroendocrine organ which produces melatonin. The main goal of this study was to provide a reference range for pineal volume in all age groups and to determine calcified and noncalcified tissue and their proportions, which may be a reflection of melatonin production in all age groups, by using very thin computerized tomography (CT) slices. Materials and methods: A total of 167 outpatients had undergone cranial CT. Each of the subject's total pineal volume (TPV), calcified pineal volume (CPV) and noncalcified pineal volume (NPV) according to age groups were calculated in cubic millimeters. Also, proportion of calcification (POC) was noted. Results: The median values were 88.5 mm3 (12.3 mm3-411mm3) for TPV, 74.3 mm3 (12.3 mm3-298 mm3) for NPV, and 3.9 mm3 (0 mm3-141 mm3) for CPV. POC showed a gradual increase from 0-49 years. In the ? 70 group, when compared with the 60-69 age group, CPV and POC values were significantly lower (P: 0.036, P: 0.034, respectively). Conclusion: This study brings a radiological point of view to the distribution of pineal calcification according to age that has a link with melatonin secretion. © 2016 The Author(s).
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    Jejunal diverticulosis presented with acute abdomen and diverticulitis complication: A case report
    (Medical Science International, 2015) Fidan, Nurdan; Mermi, Esra Ummuhan; Beker Acay, Mehtap; Murat, Muammer; Zobacı, Ethem
    Background: Jejunal diverticulosis is a rare, usually asymptomatic disease. Its incidence increases with age. If symptomatic, diverticulosis may cause life-threatening acute complications such as diverticulitis, perforation, intestinal hemorrhage and obstruction. In this report, we aimed to present a 67-yearold male patient with jejunal diverticulitis accompanying with abdominal pain and vomiting. Case Report: A 67-year-old male patient complaining of epigastric pain for a week and nausea and fever for a day presented to our emergency department. Ultrasonographic examination in our clinic revealed diverticulum-like images with thickened walls adjacent to the small intestine loops, and increase in the echogenicity of the surrounding mesenteric fat tissue. Contrast-enhanced abdominal computed tomography showed multiple diverticula, thickened walls with showing contrast enhancement and adjacent jejunum in the left middle quadrant, increased density of the surrounding mesenteric fat tissue, and mesenteric lymph nodes. The patient was hospitalized by general surgery department with the diagnosis of jejunal diverticulitis. Conservative intravenous fluid administration and antibiotic therapy were initiated. Clinical symptoms regressed and the patient was discharged from hospital after 2 weeks. Conclusions: In cases of diverticulitis it should be kept in mind that in patients with advanced age and pain in the left quadrant of the abdomen, diverticular disease causing mortality and morbidity does not always originate from the colon but might also originate from the jejunum. © Pol J Radiol, 2015.
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    The fate of abstracts presented at Turkish national radiology congresses in 2010-2012
    (Turkish Society of Radiology, 2015) Beker Acay, Mehtap; Fidan, Nurdan; Ünlü, Ebru; Katırağ, Ahmet; Ülker, Hüseyin; Acay, Akif; Yücel, Aylin
    PURPOSE: This study aims to evaluate the analysis and publication rates of abstracts presented at the Turkish National Radiology meetings in 2010–2012. METHODS: Abstracts presented in the national radiology meetings of 2010, 2011, and 2012 were included in the study. The presentations were classified according to presentation type (oral or poster presentations), study type, study design, imaged organ or body systems, imaging modalities, time interval between the presentation and the publication date, and the journal in which the article was published. The conversion rate of presentations into full-text articles in peer-reviewed journals were surveyed through PubMed. The time from presentation in the meetings to publication was determined. The distribution of journals was also demonstrated. RESULTS: The total number of presentations submitted in three national radiology meetings was 3,192. The publication rate was 11% for the 2010 meeting, 8.2% for the 2011 meeting, and 9.6% for the 2012 meeting. A total of 300 papers were published, with an average of 15 months (range, 0–42 months) between presentation and final publication. The first three refereed international journals with the most number of papers derived from these meetings were Diagnostic and Interventional Radiology, Clinical Imaging, and European Journal of Radiology. CONCLUSION: The overall publication rate of scientific abstracts from Turkey was lower than those from overseas countries. Encouraging the authors to conduct higher-quality research would raise the publication rate as well as improve the quality and success of our scientific meetings. © Turkish Society of Radiology 2015
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    The sensitivity of MR colonography using dark lumen technique for detection of colonic lesions
    (Turkish Society of Gastroenterology, 2014) Beker Acay, Mehtap; Bayramoğlu, Sibel; Acay, Akif
    Background/Aims: To assess the detectability of the lesions with magnetic resonance (MR) colonography using dark lumen technique that had been detected on conventional colonoscopy. Materials and Methods: A total of 38 patients who were suspected to have a colorectal mass between April 2008 and June 2010 were included in this prospective study. Warm tap water was administered via a rectal tube to the patients in prone position. Then, axial T2 true- fast imaging with steady-state precession (FISP), axial T2 half-Fourier acquisition single-shot turbo spin-echo (HASTE), diffusion-weighted images, and T1 vibe fat suppression coronal sequences were obtained. T1 vibe fat suppression sequences on axial coronal planes were repeated after gadolinium contrast medium intravenous injection. MR images were analyzed by two radiologists concurrently. Assessments were done by comparing with conventional colonoscopy and histopathologic findings. Results: Thirteen out of 20 lesions that had been detected on conventional colonoscopy were correctly obtained by MR colonography. None of the three lesions 5 mm or below was seen on MR colonography. Two out of 4 lesions measuring 6-9 mm were seen on MR colonography (50%). Eleven out of 13 lesions 10 mm and above were correctly detected on MR colonography (84.6%). Sensitivity was estimated as 65% when all lesions were evaluated together. Conclusion: MR colonography has a high sensitivity in the diagnosis of colonic pathologies without ionizing radiation. Future investigation will likely lead to wider acceptance of this method to detect colonic pathologies, including perhaps their use in colon cancer screening programs. © 2014 by The Turkish Society of Gastroenterology.