Advances in Non-Invasive Prenatal Testing (NIPT): Evaluating the Accuracy, Benefits, and Limitations of New Methods for Detecting Chromosomal Abnormalities in Early Pregnancy

Abstract

Non-Invasive Prenatal Testing (NIPT) has become a cornerstone in prenatal screening, allowing for early detection of chromosomal abnormalities using cell-free fetal DNA (cffDNA) extracted from maternal blood. This study aims to assess the accuracy, clinical benefits, and limitations of new NIPT methodologies compared to traditional invasive testing methods like amniocentesis and chorionic villus sampling (CVS). Using a dataset from clinical trials involving over 1,500 pregnant women, we applied statistical analysis to determine the sensitivity, specificity, and predictive value of NIPT for detecting common aneuploidies. Our findings suggest that NIPT offers superior diagnostic accuracy and safety, although challenges persist in detecting rare chromosomal variants.