scholarly journals Accuracy of Ultrasonography in Fetal Gender Determination in 11 to 14 Week of Gestational Age

2020 ◽  
Vol In Press (In Press) ◽  
Author(s):  
Raziyeh Behzadmehr ◽  
Khadije Rezaie Keikhaie ◽  
Rehaneh Behzadmehr
Keyword(s):  
Body Mass Index ◽  
Sensitivity And Specificity ◽  
Gestational Age ◽  
High Sensitivity ◽  
Female Gender ◽  
Male Gender ◽  
Gender Determination ◽  
Fetal Gender ◽  
Pregnant Mothers

Background: Early determination of fetal gender during pregnancy is essential for the early detection of gender-linked diseases in the fetus. Thus, the purpose of this study was to evaluate the sensitivity and specificity of ultrasonography in determining fetal gender in pregnant mothers at 11 to 14 weeks of gestation. Methods: The study included 227 pregnant mothers at 11 to 14 weeks of gestational age. Ultrasonography results were recorded for fetal gender determination based on gestational age and body mass index (BMI). Results: The sensitivity and specificity of ultrasonography for male gender determination were 91.73% and 99.05%, respectively. This value for female gender determination was 99.05% and 91.73%, respectively. Conclusions: The results of our study showed that ultrasonography at 11 to 14 weeks of gestation had high sensitivity and specificity in detecting gender, and its sensitivity in female gender determination was higher.

Accuracy of Ultrasound for Determination of Fetal Gender

2021 ◽  
Vol 15 (6) ◽  
pp. 1237-1239
Author(s):  
A. Ammar ◽  
M. A. Z. Husnain ◽  
M. Arshad ◽  
T. M. Mirza ◽  
Z. Arshad ◽  
...  
Keyword(s):  
Sensitivity And Specificity ◽  
Ultrasound Examination ◽  
Cross Sectional Study ◽  
Military Hospital ◽  
Inclusion Criteria ◽  
Cross Sectional ◽  
Predictive Values ◽  
Fetal Gender ◽  
Sensitivity Specificity

Aim: To evaluate the accuracy of ultrasound in determining the phenotypic foetal gender in all three trimesters. Study design: Cross sectional study. Place and duration of study: Department of Diagnostic Radiology Combined Military Hospital Lahore from 1st January 2020 to 30th April 2020. Methodology: Three hundred and seventy two patients in the inclusion criteria were selected. Ages of patients, gestational ages of foetuses and their genders were determined according to the ultrasonographic signs using ultrasound examination. Patients were contacted 3 weeks after the estimated date of delivery and phenotypic sex recorded. Results: Mean age was 34 years. Median gestational age was 21 weeks 3 days. Accuracy of gender determination by ultrasound in 1st, 2nd and 3rd trimesters was 62%, 97% and 95% respectively. Sensitivity and specificity of ultrasound in 1st trimester for males are 66% and 72%; and for females are 72% and 66% respectively. Positive and negative predictive values for male are 69% and 71%; and for female are 71% and 69% respectively. Sensitivity and specificity of ultrasound in 2nd trimester for males are 95% and 100%; and for females are 100% and 95% respectively. Positive and negative predictive values for male are 100% and 94%; and for female are 94% and 100% respectively. Sensitivity and specificity of ultrasound in 3rd trimester for males are 94% and 96%; and for females are 96% and 94% respectively. Positive and negative predictive values for male are 97% and 93%; and for female are 93% and 97% respectively. Conclusion: There is a high accuracy of ultrasound in determination of fetal gender in second and third trimesters. Keywords: Ultrasound, Gender, Trimester, Sensitivity, Specificity, Predictive Value

Combined determination of circulating miR-196a and miR-196b levels produces high sensitivity and specificity for early detection of oral cancer

2015 ◽  
Vol 48 (3) ◽  
pp. 115-121 ◽  
Author(s):  
Ya-Ching Lu ◽  
Joseph Tung-Chieh Chang ◽  
Yu-Chen Huang ◽  
Chi-Che Huang ◽  
Wen-Ho Chen ◽  
...  
Keyword(s):  
Oral Cancer ◽  
Early Detection ◽  
Sensitivity And Specificity ◽  
High Sensitivity

scholarly journals FAMACHA©: Predictive value for control of Haemonchus sp. in sheep from Brazilian Cerrado

2021 ◽  
Vol 42 (5) ◽  
pp. 2825-2838
Author(s):  
Roberta Tavares Moreira ◽  
◽  
Ana Lourdes Arrais de Alencar Mota ◽  
Antonio Carlos Lopes Câmara ◽  
Benito Soto-Blanco ◽  
...  
Keyword(s):  
Sensitivity And Specificity ◽  
Negative Correlation ◽  
Clinical Signs ◽  
High Sensitivity ◽  
High Specificity ◽  
Gastrointestinal Parasites ◽  
Brazilian Cerrado ◽  
Selective Treatment ◽  
Helminthic Infection

This study aimed to evaluate the sensitivity and specificity of FAMACHA© method, correlating with packed cell volume (PCV) and egg count (FEC), as well as to evaluate the clinical signs of Haemonchus sp. infection in sheep from Brazilian Cerrado. Over two years (2017 to 2019), 1,435 sheep were subjected to clinical and parasitological evaluations. Sheep from six breeds (Santa Inês, Dorper, White Dorper, Ile de France, Suffolk, and crossbreed) were subdivided into five production categories (pregnant, lactating, non-pregnant/lactating ewes, breeding males, and weaned lambs). Parasitological evaluations included FEC and coproculture. In the clinical evaluation, all sheep underwent determination of the FAMACHA© score and PCV. Haemonchus sp. larvae were predominant in coprocultures of the flocks (76.4%) and in each animal production category evaluated (69.4 to 84.3%). FAMACHA© method showed high sensitivity (70.6%) for evaluating sheep with scores ≥ 3, and PCV < 23%, and high specificity (97.5%) in animals with higher scores (4 and 5), and PCV < 18%. A negative correlation was observed between FAMACHA© scores and PCV (-0.46) and between PCV and FEC (-0.47), while a positive correlation was observed between FAMACHA© scores and FEC (0.22) (p < 0.01). The vast majority of the animals evaluated (54.5%) were clinically resistant to gastrointestinal parasites. Due to the high sensitivity and specificity, we concluded that the method could be a valuable diagnostic alternative and an ancillary tool in the implementation of selective treatment for helminthic infection in sheep from Brazilian Cerrado.

Upconversion nanoparticles-labelled immunochromatographic assay for quantitative biosensing

2020 ◽  
Vol 44 (36) ◽  
pp. 15498-15506
Author(s):  
Fengping Hou ◽  
Haiyun Liu ◽  
Yun Zhang ◽  
Zhendong Gao ◽  
Shiqi Sun ◽  
...  
Keyword(s):  
Quantitative Determination ◽  
Sensitivity And Specificity ◽  
High Sensitivity ◽  
Immunochromatographic Assay ◽  
Upconversion Nanoparticles

Quantitative determination of FMDV antibody using immunochromatographic strips with high sensitivity and specificity was achieved within 20 minutes.

scholarly journals Birth Weight, Current Anthropometric Markers, and High Sensitivity C-Reactive Protein in Brazilian School Children

2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Camile Boscaini ◽  
Lucia Campos Pellanda
Keyword(s):  
Body Mass Index ◽  
Birth Weight ◽  
Waist Circumference ◽  
Body Mass ◽  
School Children ◽  
Gestational Age ◽  
High Sensitivity ◽  
Large For Gestational Age ◽  
C Reactive Protein ◽  
Reactive Protein

Studies have shown associations of birth weight with increased concentrations of high sensitivity C-reactive protein. This study assessed the relationship between birth weight, anthropometric and metabolic parameters during childhood, and high sensitivity C-reactive protein. A total of 612 Brazilian school children aged 5–13 years were included in the study. High sensitivity C-reactive protein was measured by particle-enhanced immunonephelometry. Nutritional status was assessed by body mass index, waist circumference, and skinfolds. Total cholesterol and fractions, triglycerides, and glucose were measured by enzymatic methods. Insulin sensitivity was determined by the homeostasis model assessment method. Statistical analysis included chi-square test, General Linear Model, and General Linear Model for Gamma Distribution. Body mass index, waist circumference, and skinfolds were directly associated with birth weight (P<0.001,P=0.001, andP=0.015, resp.). Large for gestational age children showed higher high sensitivity C-reactive protein levelsP<0.001than small for gestational age. High birth weight is associated with higher levels of high sensitivity C-reactive protein, body mass index, waist circumference, and skinfolds. Large for gestational age altered high sensitivity C-reactive protein and promoted additional risk factor for atherosclerosis in these school children, independent of current nutritional status.

scholarly journals Performance of references based on body mass index for detecting excess body fatness in schoolchildren aged 7 to10 years

2014 ◽  
Vol 17 (2) ◽  
pp. 517-530 ◽  
Author(s):  
Danielle Biazzi Leal ◽  
Maria Alice Altenburg de Assis ◽  
Wolney Lisboa Conde ◽  
France Bellisle
Keyword(s):  
Body Mass Index ◽  
Body Mass ◽  
Sensitivity And Specificity ◽  
High Sensitivity ◽  
Skinfold Thickness ◽  
Classification Systems ◽  
World Health ◽  
Likelihood Ratios ◽  
Body Fatness ◽  
Test Probability

Objective: To compare the sensitivity and specificity of body mass index (BMI)-based classification systems and to determine the optimal cut-offs for predicting excess body fatness in schoolchildren. Methods: 2795 schoolchildren aged 7 - 10 years were examined. Excess body fatness was defined as the standardized residuals of the sum of three skinfold thickness ranking at or above the 90th percentile. The international BMI-based system recommended by the World Health Organization (WHO-2007) was evaluated on the basis of its sensitivity and specificity for detecting excess body fatness and compared with a national BMI reference (Brazil-2006). Likelihood ratios analysis was used to select the optimal cut-offs in each curve. Results: The two classification systems presented high sensitivity (92.5 - 98.6%) and moderate specificity (75.9 - 85.0%) for both sexes. The optimal BMI cut-offs improved specificity with no marked loss of sensitivity. Using the proposed BMI cut-offs, the post-test probability of predicting excess body fatness for children classified as non-overweight decreased from 10 (pre-test probability) to 1.4% in girls and to 1.1% in boys. For overweight children, this probability increased to more than 46.0%. Conclusion: The results showed that both the WHO-2007 and Brazil-2006 classification systems can be used as screening instruments for excess body fatness, and that one of the limitations of using the BMI-for-age references could be improved by refining the existing cut-offs.

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