??

??
M?????EF?<50mm/s??????????
2DE???????????????????????????????????????????????????????
????????????
2DE?????????????
<2.0cm21.5cm2?
<1.5cm21.0cm2?
<1.0cm2         ??
???????PHT?????????pressure half time PHT??????????PHT??????????
220/PHT?
???????????????PHT??
?    ?PW??
?????CW?????CDFI??????????
??    TEE???????????????????TEE

???????
M?
u       EF?
u     ...