P11.02: Firsttrimester combined screening for aneuploidy in a Brazilian population from a private center in Rio de Janeiro: a preliminary study

were rated to enable highly diagnostic confidence (82.9%), and produce better image quality for the near field image (94.3%), the far field image (88.6%), and overall (94.3%). Conclusions: The current study described an objective method of comparing image quality acquired using different sonographic technologies. Ultrasound transducer incorporated with PureWave Crystal technology produces significantly better image quality for diagnostic purpose.