...明显的主动脉瓣病变时:由于左室肥厚或扩大,致左室顺应性下降明显,此时采用连续多普勒频谱的压力半降时间(half-pressure time,HPT)法测定二尖瓣狭窄的瓣口面积不准,往往会估计过高,而应该采用面积法测定。
基于8个网页-相关网页
...明显的主动脉瓣病变时:由于左室肥厚或扩大,致左室顺应性下降明显,此时采用连续多普勒频谱的压力半降时间(half-pressure time,HPT)法测定二尖瓣狭窄的瓣口面积不准,往往会估计过高,而应该采用面积法测定。
基于8个网页-相关网页
pressure half time 压力减半时间 ; 半时间 ; 通过压力减半时间 ; 时间
pressure half-time method 压差半降时间测量
pressure half time method 压差半降法
doppler pressure half-time 多普勒压力减半时间
The latter half of your academic career is a good time to dip your toe into business because there's less pressure to fulfill stringent research, teaching and publication requirements.
你学术生涯的后半段是涉足企业的好时机,因为这时候你的压力较小,不必完成艰巨的研究、教学和发表论文的要求。
He said it was the first time they were making a public appeal because of pressure on the police kennels, which usually import about half of their annual requirement.
他说,这是警方首次向公众发出呼吁,因为警犬基地每年需要的警犬通常约有一半是进口的。
Good life work and rest is everyday sunshine of not direct insolate exceeds half hour, Shu to solve life pressure, time motion, Morpheus to wait amply.
良好生活作息则是每天不直接曝晒阳光超过半小时、纾解生活压力、定时运动、睡眠充足等。
应用推荐