| Budget Amount *help |
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Research Abstract |
STI was calculated in the left ventricle of 93 normal fetuses at 20-40 weeks gestation. The isovolumetric contraction time(ICT), ejection time(ET) and isovolumetric relaxation time(IRT) were measured using Pulse Doppler signals of the opening and closing of the mitral and aortic valve. Throughout gestation, ICT and ET remained constant. IRT slightly increased(IRT=39+ 0. 36×gestational age). The trend of ICT, ET and IRT during normal pregnancy was shown by interval time of the opening and closing of the mitral and aortic valves using a Pulse Doppler cardiography system.
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