【名词&注释】
多普勒(doppler)、可能性(possibility)、肾囊肿(renal cyst)、肾功能(renal function)、肾上腺(adrenal)、成年人(adult)、发育不全、梗阻性肾积水(obstructive hydronephrosis)、非梗阻性(non-obstructive)
[单选题]多普勒鉴别梗阻与非梗阻性(non-obstructive)肾积水(obstructive hydronephrosis)的标准()。①非梗阻性(non-obstructive)肾积水(obstructive hydronephrosis)RI0.7③非梗阻性(non-obstructive)肾积水(obstructive hydronephrosis)RI>0.7④梗阻性肾积水(obstructive hydronephrosis)RI
A. ①②
B. ③④
C. ①④
D. ②③