Blastocyst quality scoring based on morphologic grading correlates with cell number
Koji Matsuura, Nobuyoshi Hayashi, Chisato Takiue, Rei Hirata, Toshihiro Habara, Keiji Naruse, Koji Matsuura, Nobuyoshi Hayashi, Chisato Takiue, Rei Hirata, Toshihiro Habara, Keiji Naruse
Abstract
Blastocyst quality score (BQS), first reported by Rehman et al., is a numerical blastocyst-morphology grading system based on the criteria established by Gardner and Schoolcraft. We demonstrate a positive correlation between the calculated BQS score and cell number by staining thawed human embryos and suggest that BQS can be applied to evaluate culture systems clinically.
Copyright (c) 2010 American Society for Reproductive Medicine. Published by Elsevier Inc. All rights reserved.
Source: PubMed