321 research outputs found

    Demographic parameters of women with uterine fibroids presenting as abnormal uterine bleeding

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    Background: Uterine fibroids are commonest benign uterine tumors. Only about 25% women with fibroids are symptomatic. Around 70-80% are discovered incidentally during routine pelvic examination. Using ultrasonography screening, some authors have estimated a cumulative incidence of 70% in all women by age 50. Symptoms attributable to fibroids are mainly abnormal uterine bleeding (AUB), pelvic pressure, pain, and reproductive dysfunction. Heavy and/or prolonged menses is the typical bleeding pattern with myomas. Uterine fibroids are a leading cause of hysterectomy in perimenopausal women, thus, this study was done to find out its prevalence and demography in women presenting with AUB. The objectives of the present investigation were to find out the prevalence of uterine fibroid in women with AUB and to find out the various demographic features of womenMethods: The study was done for 2 years in the Dept of Obstetrics and Gynecology of a rural tertiary institute after taking clearance from institutional ethical committee. All the women presenting with AUB were included in the study. History and demographic features was enquired and entered in a predesigned proforma. All women were clinically examined after consent. Women with suspicion of fibroid were subjected to diagnostic modalities and the reports were followed and correlated.Results: Total 11,841 patients came to Gynaeological OPD during the study period. Out of these 3,878 (32.75%) presented with AUB, 2,126 were diagnosed as having fibroids after examination and investigations. Hence, the prevalence of fibroids amongst the women with AUB was 54.82% and 17.95% amongst all gynaecological patients. Maximum women were between 31-40 years, (64.78% rural and 62.73% urban). Majority were having parity between 1-2 (40.73% in urban, 38.96% in rural).Conclusions: Uterine fibroids are the commonest reason of AUB in reproductive age group with the prevalence of 54.82%. The trends in age incidence have remained the same over the years, commonly affecting women in third decade. There is no difference in incidence of fibroids amongst various socioeconomic classes.

    Elemental, structural and optical properties of Cd1-xCoxS thin films prepared by spray pyrolysis technique

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    The Cd1-xCoxS (x=0.00, 0.10, 0.20 and 0.40) thin films were deposited onto glass substrate at temperature 523K by using a low cost spray pyrolysis deposition (SPD) technique. The deposited films have been characterized their elemental, structural and optical properties measurements by energy dispersive X-ray, X-ray diffraction and UV-VIS spectrophotometer. Energy dispersive X-ray (EDX) analysis confirmed the presence of Cd, S and Co compositions in the films with appropriate stoichiometric. The as deposited films were amorphous in nature. The optical band gap of the films was decreased from 2.54 eV to 2.40 eV. Refractive index and the refractive index were affected by the doping concentration. Keywords: SEM, spray pyrolysis, band gap and solar cellThe research is financed by Bangladesh University of Engineering and Technology (BUET),.Dhaka-1000, Bangladesh

    Identifying Implementation Bugs in Machine Learning based Image Classifiers using Metamorphic Testing

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    We have recently witnessed tremendous success of Machine Learning (ML) in practical applications. Computer vision, speech recognition and language translation have all seen a near human level performance. We expect, in the near future, most business applications will have some form of ML. However, testing such applications is extremely challenging and would be very expensive if we follow today's methodologies. In this work, we present an articulation of the challenges in testing ML based applications. We then present our solution approach, based on the concept of Metamorphic Testing, which aims to identify implementation bugs in ML based image classifiers. We have developed metamorphic relations for an application based on Support Vector Machine and a Deep Learning based application. Empirical validation showed that our approach was able to catch 71% of the implementation bugs in the ML applications.Comment: Published at 27th ACM SIGSOFT International Symposium on Software Testing and Analysis (ISSTA 2018

    ANATOMICAL DISPOSITION OF CARPAL BONES OF GOLDEN RETRIEVER DOG BY X-RAY EXPOSURE

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    The present study was conducted to know the general disposition of bones in carpal region of experimental dogs by X-ray study with an objective that the findings will facilitate to have an in-depth knowledge about the proper positioning of the carpal bones for surgical management of fractures and different types of bone deformities in dogs. In the present study, the anatomical disposition and arrangement pattern of carpal bones playing a pivotal role in providing the structural conformity in the limbs of Golden Retriever dog has been thoroughly confirmed by Xray exposure

    A clinical audit and confidential enquiry of caesarean section indications at rural tertiary health care centre

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    Background: Worldwide CSR has been steadily increasing beyond recommended level of 15 %by WHO. High CSR have been reported in developed and developing countries. Reasons for increase in CSR are not obvious and somewhat complex. Thus, present study was undertaken to analyze various indications for CS performed at rural tertiary health care centre Sewagram, M.S.Methods: This was prospective study included all women who underwent CS from 1st January 2015 till 30th June 2016. Data was entered in MS excel sheet analyzed with percentage and chi square test using SPSS ver.17.Results: CSR was 36 .88% in present study. As per NICE guidelines CS were classified in four categories based on urgency, women were distributed in each category. Category I had 22.62%, category II -38.61%, category III - 28.37% and Category IV - 10.40% women. In CAT I common indication was foetal bradycardia (71.53%). In CAT II CS, common indication was non reassuring foetal status (38.82%).  Breech presentation (14.74%) and previous scar with doubtfull scar integrity (14.33) were next common indications. In CAT III (43.43%), IV (41.13%) previous LSCS with inadequate pelvis was the common indication. Confidential enquiry revealed that 26.17% (28/107), 20.3% (40/197), 23.17%, (35/151) and 8.3 % (5/60) of CAT I, II, III and IV CS had questionable indications.Conclusions: In this study, CSR was higher than WHO standard. Common indications in primipara was foetal distress while in multiparas primary indication previous LSC

    Radioactive seed immobilization techniques for interstitial brachytherapy

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    Purpose In prostate brachytherapy, seeds can detach from their deposited sites and move locally in the pelvis or migrate to distant sites including the pulmonary and cardiac regions. Undesirable consequences of seed migration include inadequate dose coverage of the prostate and tissue irradiation effects at the site of migration. Thus, it is clinically important to develop seed immobilization techniques. Methods We first analyze the possible causes for seed movement, and propose three potential techniques for seed immobilization: (1) surgical glue, (2) laser coagulation and (3) diathermy coagulation. The feasibility of each method is explored. Experiments were carried out using fresh bovine livers to investigate the efficacy of seed immobilization using surgical glue. Results Results have shown that the surgical glue can effectively immobilize the seeds. Evaluation of the radiation dose distribution revealed that the non-immobilized seed movement would change the planned isodose distribution considerably; while by using surgical glue method to immobilize the seeds, the changes were negligible. Conclusions Prostate brachytherapy seed immobilization is necessary and three alternative mechanisms are promising for addressing this issue. Experiments for exploring the efficacy of the other two proposed methods are ongoing. Devices compatible with the brachytherapy procedure will be designed in futur

    Robot-Assisted Prostate Brachytherapy

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    Abstract: In contemporary brachytherapy procedures, needle placement at the desired target is challenging due to a variety of reasons. A robot-assisted brachytherapy system can potentially improve needle placement and seed delivery, resulting in enhanced therapeutic delivery. In this paper we present a 16 DOF (degrees-of-freedom) robotic system (9DOF positioning module and 7DOF surgery module) developed and fabricated for prostate brachytherapy. Strategies to reduce needle deflection and target movement were incorporated after extensive experimental validation. Provisions for needle motion and force feedback were included into the system for improving robot control and seed delivery. Preliminary experimental results reveal that the prototype system is sufficiently accurate in placing brachytherapy needles
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