Stringer D A, O'Halpin D, Daneman A, Liu P, Geary D F
Department of Radiology, Hospital for Sick Children, Toronto, Ontario, Canada.
Pediatr Radiol. 1989;19(3):187-92. doi: 10.1007/BF02388654.
Of 60 renal transplant patients who underwent 134 duplex Doppler sonograms, 38 had normal frequency shift profiles and 8 showed only minimal disturbances, within normal post-transplantation limits. Fourteen patients had hypertension and showed a very abnormal profile. In 3 of the 14 the hypertension was controllable medically, and the remaining 11 underwent angiography. Duplex Doppler sonography showed gross turbulence (spectral broadening, bidirectional flow) and high frequency shift confirmed on angiography to represent 50 to 75% main renal artery stenosis in 8 of these 11, and major renal intrahilar vessel stenosis in 2. In the remaining patient, no Doppler signal was found and 95% stenosis was present. In 1 patient with intrahilar stenosis, arterial signals detected in the renal veins indicated the presence of a post-biopsy arteriovenous fistula. One patient with main renal artery stenosis also had a fistula, which was masked by a 70% stenosis. All patients with angiographically proven renal artery stenosis had a distinctive abnormality of the Doppler arterial flow pattern.
在接受了134次双功多普勒超声检查的60例肾移植患者中，38例的频移图谱正常，8例仅显示轻微异常，均在移植后的正常范围内。14例患者患有高血压，其图谱非常异常。在这14例患者中，3例的高血压可通过药物控制，其余11例接受了血管造影。双功多普勒超声检查显示严重紊乱（频谱增宽、双向血流），血管造影证实高频移在这11例中的8例代表肾主动脉狭窄50%至75%，2例代表肾门内主要血管狭窄。在其余患者中，未发现多普勒信号，存在95%的狭窄。在1例肾门内狭窄患者中，肾静脉中检测到的动脉信号表明存在活检后动静脉瘘。1例肾主动脉狭窄患者也有瘘管，被70%的狭窄所掩盖。所有血管造影证实有肾动脉狭窄的患者，其多普勒动脉血流模式均有明显异常。
