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We employed new generation digital parallel processing ultrasound architectures capable of improved accuracy for high frequency imaging in 30 chick embryos at 11-24 days of gestation. Studies were obtained with an ATL 3000 HDI system, using a 10 MHz linear array, and HP scanners using broadband sector arrays running at 7-12 MHz insonation frequency. Yield rate for adequate cardiac wall, valve and...
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