Predictive value of admission red cell distribution width-platelet ratio for no-reflow phenomenon in acute ST segment elevation myocardial infarction undergoing primary percutaneous coronary intervention

Background: The red cell distribution width–platelet ratio (RPR), a novel inflammatory marker is currently used to predict inflammation in chronic diseases. It may be associated with adverse outcomes among artery disease but its prognostic value in ST-segment elevation myocardial infarction (STEMI) treated with primary percutaneous coronary intervention (PCI) has not been fully investigated. There is no data regarding the association between RPR and in-hospital major adverse cardiovascular events (MACEs). This study evaluated the relations between pre-procedural RPR and the in-hospital and long-term outcomes in STEMI patients undergoing primary PCI. Methods: This study included 580 STEMI patients (77% men, mean age: 59 ± 12 years). The patients were divided into two groups according to thrombolysis in myocardial infarction (TIMI) flow grades after primary PCI. No-reflow was defined as a post-PCI TIMI flow grade of 0, 1 or 2 (group 1). Angiographic success was defined as TIMI flow grade 3 (group 2). Results: Whole blood cell count, neutrophil and lymphocyte percentages, red cell distribution width, platecrit, neutrophil–lymphocyte ratio (NLR) and RPR values were higher among patients with no-reflow. On multivariate analysis, pain to balloon time, multivessel disease, TIMI thrombus grade, tirofiban, aspirin, previous coronary artery disease, NLR, platecrit and RPR remained independent predictors of no-reflow after primary PCI. Patients in no-reflow group tended to be higher percent in-hospital MACE, including nonfatal myocardial infarction and cardiovascular mortality compared to the reflow patients. Conclusions: Admission NLR, platecrit and RPR are independent correlates of no-reflow and in-hospital MACEs among patients with STEMI undergoing primary PCI.

Comparison of conventional and CT-based planning for intracavitary brachytherapy for cervical cancer: target volume coverage and organs at risk doses

<p>Abstract</p> <p>Background</p> <p>To compare intracavitary brachytherapy (ICBT) planning methods for cervical cancer, based on either orthogonal radiographs (conventional plan) or CT sections (CT plan); the comparison focused on target volume coverage and dose volume analysis of organs at risk (OARs), by representing point doses defined by the International Commission on Radiation Units and Measurement (ICRU) and dose volume histograms (DVHs) from 3D planning.</p> <p>Methods</p> <p>We analyzed the dosimetric data for 62 conventional and CT-based ICBT plans. The gross tumor volume (GTV), clinical target volume (CTV) and organs at risk (OAR)s were contoured on the CT-plan. Point A and ICRU 38 rectal and bladder points were defined on reconstructed CT images.</p> <p>Results</p> <p>Patients were categorized on the basis of whether the >95% isodose line of the point-A prescription dose encompassed the CTV (group 1, n = 24) or not (group 2, n = 38). The mean GTV and CTV (8.1 cc and 20.6 cc) were smaller in group 1 than in group 2 (24.7 cc and 48.4 cc) (<it>P <</it>0.001). The mean percentage of GTV and CTV coverage with the 7 Gy isodose was 93.1% and 88.2% for all patients, and decreased with increasing tumor size and stage. The mean D2 and D5 rectum doses were 1.66 and 1.42 times higher than the corresponding ICRU point doses and the mean D2 and D5 bladder doses were 1.51 and 1.28 times higher. The differences between the ICRU dose and the D2 and D5 doses were significantly higher in group 2 than in group 1 for the bladder, but not for the rectum.</p> <p>Conclusion</p> <p>The CT-plan is superior to the conventional plan in target volume coverage and appropriate evaluation of OARs, as the conventional plan overestimates tumor doses and underestimates OAR doses.</p

Improving Visual Perception of Augmented Reality on Mobile Devices with 3D Red-Cyan Glasses

22nd IEEE Signal Processing and Communications Applications Conference (SIU) -- APR 23-25, 2014 -- Karadeniz Teknik Univ, Trabzon, TURKEYWOS: 000356351400406In this work, we study the understanding of 3D visual objects which are generated by augmented reality techniques. 3D glasses are typically highly priced, and so they are not purchasable for most consumers. Instead, we consider low-priced red-cyan (anaglyph) glasses. We generate the left and right views so that they are comfortable for human eyes.IEEE, Karadeniz Tech Univ, Dept Comp Engn & Elect & Elect Eng

A New Subtraction Radiography Approach for Dental Applications

IEEE 17th Signal Processing and Communications Applications Conference -- APR 09-11, 2009 -- Antalya, TURKEYWOS: 000273935600047In this project we present a novel approach for identifying the landmarks on dental images. The proposed method is based on exploiting some well known characteristics of hard tissue including bone structures. Images are defined in terms of univariate and bivariate probability distributions and certain characterizations of these distributions are used to identify the underlying landmarks. Based on the proposed algorithm, a software package which can be used to identify the landmarks manually and automatically has been developed.IEEETUBiTAK hizli destek prograi tarafindan desteklenmistir [107E299]Bu calima TUBiTAK hizli destek prograi tarafindan desteklenmistir (Proje no: 107E299)

A saliency-weighted orthogonal regression-based similarity measure for entropic graphs

Unlu, Mehmet Zubeyir/0000-0003-1605-0160; Ergun, Asli/0000-0003-0476-0069WOS: 000490956300015Various measures are used to determine similarity ratios among images before and after image registration. Image registration methods are based on finding the translation, rotation, and scaling parameters that maximize the similarity between two images by taking advantage of the feature points and densities that are found. While the similarity criterion is calculated, it is possible and advantageous to use approximation methods on the graphs based on information theory. the current study proposes a new similarity measure based on saliency-weighted orthogonal regression derived from the weighted sums of the saliency map of the orthogonal regression residuals formed on the entropic graph. It is evaluated in terms of both quantitative and qualitative methods and compared with other graph-based similarity measures

Registration and Optimization in Fintropic Graphs Using Branch Skeleton Features

25th Signal Processing and Communications Applications Conference (SIU) -- MAY 15-18, 2017 -- Antalya, TURKEYWOS: 000413813100311In image registration process, it is necessary to find the similarity of the images and thetranslation, rotation and scaling transformation parameter values that maximize the similarity between the two images. When the similarity measure and related parameters are calculated, information theory based entropic graphs can be used. In this study, similarity and optimization measures are compared on different entropic graphs. It has been seen that skeleton branch feature points to build entropic graphs give successful results.Turk Telekom, Arcelik A S, Aselsan, ARGENIT, HAVELSAN, NETAS, Adresgezgini, IEEE Turkey Sect, AVCR Informat Technologies, Cisco, i2i Syst, Integrated Syst & Syst Design, ENOVAS, FiGES Engn, MS Spektral, Istanbul Teknik Uni

Intracranial Saccular Aneurysm in a Child With Only Persistent Headache

WOS: 000354546700013PubMed ID: 25156664Headache is one of the common symptoms of intracranial aneursym. A 5-year-old child lately presented to our pediatric emergency department with persistent headache. Brain magnetic resonance imaging revealed a 7x8 mm rounded lesion with slowly heterogeneous low signal in T2 sequence consistent with a partial occluded aneurysm, in the right medial frontal lobe that close to anterior cerebral artery. Intracranial aneurysms are rare in children and they are noncommon without complications as our case

RELATIONSHIPS BETWEEN NATURAL AND ARTIFICIAL AGING OF PURE INK DYE: MODEL STUDY USING CRYSTAL VIOLET

Inks in written documents fade over time due to physicochemical changes caused by exposure to environmental factors like oxygen, humidity, light, and heat. This fading is examined in detail with advanced analytical methods. The age of a document can be determined from the amount of ink fading. In this study, a ballpoint pen ink containing Crystal Violet as the major component was prepared and changes to pure crystal violet over time were examined. Ink samples were prepared by printing from a cartridge filled with this crystal violet solution onto paper and exposed to artificial daylight for 33 hours. Changes in the ink composition were analyzed using High Performance Liquid Chromatograpy. Additionally, inks from naturally aged documents were analyzed in the same manner, and the dye ratios were investigated to compare the parameters for dye aging in dark, or only weakly exposed to daylight, rooms. We found that the dye ratio and degradation product peaks on the chromatogram contained useful information related to ink aging rather than the absolute amounts of crystal violet, methyl violet, and tetramethyl pararosaniline. A chromatogram from a real case sample (fraudulent documents that were exposed to high intensity light) that tricked expert witness on ink dating was obtained and presented

Oncoplastic reduction mammoplasty for breast cancer in women with macromastia: Oncological long-term outcomes

To evaluate the long-term results of tumorectomy and concomitant bilateral oncoplastic reduction mammoplasty (ORM) for early stage breast cancer patients with macromastia in terms of local disease control and long-term oncological results. Data of 82 patients with macromastia undergoing ORM for breast cancer between 1996 and 2011 were retrospectively examined and evaluated with regard to oncological results. The median age was 50 years. The median follow-up was 121 months (range 28–212 months). The median breast volume was 1402 cm3 and the median weight of excised breast material was 679 g. The median surgical margin was 16 mm. Ten-year local recurrence rate was 8.7%. The 10-year overall survival rate was 82.2% and the disease-free survival rate was 73.2%. Early and late complication rates were 12.2% and 14.6%, respectively. From the standpoint of local disease control and long-term observation, ORM can be considered a very safe and acceptable treatment for early stage breast cancer in women with macromastia