Increased nuchal translucency (NT) thickness is associated with major abnormalities of the heart, great arteries and a wide range of genetic syndromes. NT thickness is one of the most important ultrasound markers in fetal diseases screening. To find an applicable method that accurately detects NT, we use an algorithm based on modified level set for semi-automated segmentation of the region. A regression model is used to find the appropriate direction of NT thickness measurement. The results show 4.5% error.
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