Pretolesi F, Derchi L E, Crespi G, Biggi E, Saffioti S, Pontremoli R
Istituto di Radiologia, Università di Genova.
Arch Ital Urol Nefrol Androl. 1991 Jun;63 Suppl 2:81-3.
It is well known that angiotensin antagonists cause increase of renal blood flow. We have examined, using duplex Doppler sonography, the changes of renal blood flow velocity induced by oral administration of 50 mg. of Captopril. We examined 19 kidneys in 17 subjects without hypertension. Both peak systolic and diastolic velocities were measured at renal hilum and at arcuate arteries, and the resistive index (RI) was calculated. In conclusion duplex Doppler sonography shows significant increase of blood flow velocities both at the hilum and at the arcuate arteries, without variation of the RI, thus showing that changes affect the whole Doppler wave, both in systole and diastole.
众所周知，血管紧张素拮抗剂会导致肾血流量增加。我们使用双功多普勒超声检查了口服50毫克卡托普利后肾血流速度的变化。我们检查了17名无高血压受试者的19个肾脏。在肾门和弓形动脉处测量收缩期峰值速度和舒张期速度，并计算阻力指数（RI）。总之，双功多普勒超声显示肾门和弓形动脉处的血流速度均显著增加，而RI无变化，从而表明这种变化影响整个多普勒波，包括收缩期和舒张期。
