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应用高频超声和多普勒能量图（ＰＤＳ）对２０例正常移植肾、１８例急性排异（ＡＲ）、８例急性肾小管坏死（ＡＴＮ）、１６例慢性移植肾功能障碍（ＣＧＤ）患者进行研究。结果显示：用高频两维超声有助于诊断ＡＲ、ＡＴＮ、ＣＧＤ。移植肾皮质部的ＰＤＳ显像分级能较好地评价皮质部血流灌注，但ＡＲ、ＡＴＮ及ＣＧＤ也可呈正常分级，ＰＤＳ的诊断敏感性不如ＲＩ值。皮质部ＲＩ值随检测部位不同而有差异，以ＣＧＤ最为明显。移植肾皮质部血流灌注不良时，血流充盈缺乏首先发生在等容收缩期。用高频ＰＤＳ超声和肾皮质部多点检测ＲＩ值，可较好地评价移植肾功能障碍。
Twenty patients with normal renal transplantations, 18 acute rejection patients (AR), 8 acute tubular necrosis (ATN), 16 chronic kidney transplant recipients (CGD) underwent ultrasonography and Doppler energy imaging (PDS) research. The results show that: the use of high-frequency two-dimensional ultrasound diagnosis of AR, ATN, CGD. PDS grading of transplanted renal cortical area can better evaluate the perfusion of cortical area, but AR, ATN and CGD can also be normal grading, PDS diagnostic sensitivity than RI value. Cortical RI values vary with the test site, with CGD most obvious. Transplantation of renal cortical poor perfusion, lack of blood flow filling occurs first in isovolumic systole. With high-frequency PDS ultrasound and renal cortical multi-point detection of RI values, can be better evaluated graft renal dysfunction.