Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10692786 | Ultrasound in Medicine & Biology | 2005 | 8 Pages |
Abstract
An image-processing and object-detection method was developed to automate the measurements of biparietal diameter (BPD) and head circumference (HC) in ultrasound fetal images. The heads in 214 of 217 images were detected by an iterative randomized Hough transform. A head was assumed to have an elliptical shape with parameters progressively estimated by the iterative randomized Hough transform. No user input or size range of the head was required. The detection and measurement took 1.6 s on a personal computer. The interrun variations of the algorithm were small at 0.84% for BPD and 2.08% for HC. The differences between the automatic measurements and sonographers' manual measurements were 0.12% for BPD and â0.52% for HC. The 95% limits of agreement were â3.34%, 3.58% for BPD and â5.50%, 4.45% for HC. The results demonstrated that the automatic measurements were consistent and accurate. This method provides a valuable tool for fetal examinations. (E-mail: TanJ@missouri.edu)
Keywords
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Acoustics and Ultrasonics
Authors
Wei Lu, Jinglu Tan, Randall Floyd,