975 research outputs found

    Fetal foot length for assessment of gestational age: a cross sectional study

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    Background: Fetal age actually begins at conception and an equivalent term is conceptional age. Uncertain gestational age (GA) has been associated with adverse pregnancy outcomes independent of maternal characteristics. The objective was to evaluate the accuracy of fetal foot length (FFL) in estimation of gestational age.Methods: It was a cross sectional study. Trans abdominal ultrasound on 150 pregnant women with normal singleton pregnancies between 16 to 40 weeks was done to measure FFL. The relationship between GA and FFL was analysed by simple linear regression.Results: A linear relationship was demonstrated between FFL and GA. (GA (in weeks)=7.490+0.393×FFL (in mm)) with significant correlation (r=0.985, p<0.001).Conclusions: Ultrasonographic measurement of FFL is a reliable indicator of gestational age and can be a useful alternative to estimate GA when other routine biometric parameters are not conclusive

    A Novel DWT-CT approach in Digital Watermarking using PSO

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    The importance of watermarking is dramatically enhanced due to the promising technologies like Internet of Things (IoT), Data analysis, and automation of identification in many sectors. Due to these reasons, systems are inter-connected through networking and internet and huge amounts of information is generated, distributed and transmitted over the World Wide Web. Thus authentication of the information is a challenging task. The algorithm developed for the watermarking needs to be robust against various attack such as salt & peppers, filtering, compression and cropping etc. This paper focuses on the robustness of the algorithm by using a hybrid approach of two transforms such as Contourlet, Discrete Wavelet Transform (DWT). Also, the Particle Swarm Optimization (PSO) is used to optimize the embedding strength factor. The proposed digital watermarking algorithm has been tested against common types of image attacks. Experiment results for the proposed algorithm gives better performance by using similarity metrics such as NCC (Normalized Cross Correlation value) and PSNR (Peak Signal to Noise Ratio)

    Comparison of metformin and insulin in the treatment of gestational diabetes: a retrospective study

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    Background: As various data are available on treatment of gestational diabetes mellitus (GDM), our aim is to compare the effect of treatment of metformin, insulin and diet control in GDM on maternal and neonatal outcomes.Methods: A retrospective study was conducted and it includes 50 women of GDM treated with Metformin, 50 women with insulin and 50 with only diet control without any drug.Results: The outcome was not much different in all groups studied. Maternal outcomes were similar in all three groups. The difference was: post prandial glucose values after 2 hour of oral glucose were slightly high in the insulin group than in the metformin group (p <0.003). Neonatal outcome was also not different in all groups. But the incidence of neonatal hypoglycemia was higher in the insulin group (p = 0.03).Conclusions: The study suggests that metformin is effective for GDM and maternal or neonatal outcomes were similar as compared with insulin

    An Improved Iris Recognition System with Template Security using CT and SVD

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    The Iris biometric system is the most prominent method for identification of individual. Many researchers have been presented iris recognition methods from decade but a fully suitable solution for real world scenario is not implemented yet. The two major issues are responsible for it. First is no accurate method to operate on non-ideal iris images with high recognition rate. Second one is deployment of system with high security on the existing real world situations. In this Paper, the above mentioned problems are solved to an extent. An accurate and secured iris template encoding method is used for generate highly secured encoded binary pattern for iris template. Contourlet transform and Singular Value decomposition is used for this purpose. Beside this security feature, the proposed method used best combinations of algorithm for provide high accuracy as compared to conventional system of iris recognition. In Our approach IIT Delhi iris database is used as input image. Iris region from eye image is extracted by canny edge detection and Hough transforms to achieve high recognition rate. Daugman’s rubber sheet model is used for normalization. Security for normalized template is provided by Contourlet transform and Singular Value Decomposition. At last stage the combination of Hamming Distance and Normalized Correlation coefficient is used to achieve high recognition rate. So at each stage of iris recognition system all methods and algorithms are performed very well and provide higher accuracy as compared to existing iris recognition system

    Non-surgical management of ectopic pregnancy

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    Background: Ectopic pregnancy is a condition when a fertilized ovum is implanted outside the uterine cavity. It is one of the important causes of maternal mortality and morbidity in India. Treatment includes expectant management, medical management and surgical management. Expectant and medical management are the treatment of choice for hemodynamically stable patients who do not want surgical treatment and are desirous of future fertility. The aim of study was to analyse the clinical profile, regimen of medical method used and outcome of non-surgical management in patients with ectopic pregnancy.Methods: It was a retrospective observational distributive study conducted at Shri Guru Ram Rai Institute of Medical and Health Sciences from January 2015 to December 2019. There were total 182 diagnosed cases of ectopic pregnancy during this duration. Out of them, 87 patients were given non-surgical management. Data was obtained from their medical records to analyse the clinical profile, outcome of expectant and medical management and efficacy of regimen used.Results: Total 87 patient out of 182 diagnosed cases of ectopic pregnancy were studied. Out of these, 57 (65.5%) patients were in the age group of 20 to 30 years, 44 (50.6%) patients were third gravidas and 32 (36.8%) patients did not have any live issue. Thirty three (37.93%) patients had haemoglobin less than 10 gm%, 41 (47.13%) patients had one or more previous caesarean sections and 73 (83.91%) patients had tubal ectopic pregnancy. Overall success rate with non-surgical management was 94.25%.Conclusions: Our study emphasised the role of expectant and medical management in stable patients of ectopic pregnancy and recommends to use methotrexate as therapy even when initial serum β HCG levels are more than 5000 IU and haemoglobin level less than 10 gm% under close monitoring

    Factors associated with induced second trimester abortion at a tertiary level hospital of Uttarakhand region: a 6-year retrospective study

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    Background: Despite the liberalization of the abortion services since the early 1970s in India, access to safe abortion services remains limited for the vast majority of Indian women particularly from rural areas. Second trimester abortions have different indications and associated with increased maternal morbidity and mortality as compared to the first trimester abortions.Methods: This study was a retrospective study conducted from the January 2014 to December 2019 at obstetrics and genecology department of Shri Guru Ram Rai Institute of Medical and Health Sciences, Dehradun, Uttarakhand, India. All patients of 12 weeks to 20 weeks of confirmed gestational age were given medical method of second trimester abortion. Data was collected and analyzed regarding demographic features, gestational age, indications, and induction-abortion interval and post abortion contraceptive methods accepted by patient.Results: During this study period a total of 180 patients had second trimester abortion at study institute. Maximum number of patients 69 (38.3%) were of 25-30 years of age group and 161 (85%) patients were of Hindu religion. Major indication was failure of contraception (42.8%) and congenital anomalies in the fetus (45.6%). There was one case of failed medical abortion in which emergency hysterectomy was done for undiagnosed adherent placenta. All patients were compliant of using contraceptive methods after the abortion because of recent medical and mental stress and majority 82 (45.6%) of the patients preferred oral combined contraceptive pills.Conclusions: Apart from congenital anomalies rest all indications can be reduced if women in our country are empowered to control their fertility, get education to become more aware and provided with social security
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