Compared with the standard technique (98%, 100%, 99%), the subsecond technique had modestly reduced sensitiity (P=0.0001), but specificity was excellent.

• 与标准技术（98%25；100%25；99%25）相比，这项亚秒级技术在敏感性上有轻微的减低(P=0.；0001)，但是特异性非常好。