Diagnosis of pulmonary arteriovenous malformations by colour Doppler ultrasound and amplitude ultrasound angiography
Diagnosis of pulmonary arteriovenous malformations by colour Doppler ultrasound and amplitude ultrasound angiography
复制标题
彩色多普勒超声及振幅超声血管造影诊断肺动静脉畸形
作者：
hao;P. Kuo;Y. Liaw;Chong;S. Kuo;K. Luh;P. Yang
背景：探讨彩色多普勒超声和振幅超声血管造影在肺动静脉畸形（PAVM）诊断和随访中的临床价值。方法 本研究纳入了 6 名连续的因临床表现和胸部 X 线检查结果异常而怀疑患有 PAVM 的患者。首先通过实时灰度成像进行超声检查，然后以随机顺序通过彩色多普勒成像和振幅超声血管造影进行超声检查。后来通过血管造影证明所有人都患有 PAVM。结果 所有六名患者均成功进行了超声检查。总共检测到八个病变。 PAVM 的实时灰度图像显示边界清楚的低回声胸膜下结节，具有强烈的后声增强。 PAVM 的彩色多普勒超声显示湍流，表现为具有高混合速度的浓色区域（网状或马赛克状图案）。一些 PAVM 证明了解剖连续性。振幅超声血管造影可以像传统血管造影一样描绘出缠结的血管结构，具有清晰的血管壁和解剖连续性。频谱波分析显示阻抗血流相对较低，收缩期峰值速度较高（平均 44.4 cm/s），舒张期速度相对较高（平均 19.3 cm/s）。平均搏动指数（PI）和阻力指数（RI）分别为1.80和0.49。在两名接受栓塞治疗的患者中，手术后获得的彩色多普勒超声扫描显示，先前的彩色血流信号焦点区域消失或尺寸缩小。这与栓塞治疗后血管造影显示的血流减少或消失相一致。结论 彩色多普勒超声和振幅超声血管造影相结合是诊断 PAVM 的有用的非侵入性技术，并为评估栓塞治疗的疗效提供了血管造影的替代方法。
BACKGROUND The clinical value of colour Doppler ultrasound and amplitude ultrasound angiography in the diagnosis and follow up of pulmonary arteriovenous malformations (PAVM) was investigated. METHODS Six consecutive patients suspected by clinical appearance and abnormal chest radiographic findings of having PAVM were included in the study. Ultrasonography was performed first by real time grey scale imaging then by colour Doppler imaging and amplitude ultrasound angiography in a random order. All were later proved by angiography to have PAVM. RESULTS The ultrasound study was successfully performed in all six patients. A total of eight lesions was detected. The real time grey scale image of PAVM revealed well defined hypoechoic subpleural nodules with strong posterior acoustic enhancement. Colour Doppler ultrasound of PAVM showed turbulent flow, manifest as an area of intense colour with high and mixed velocities (reticulated or mosaic-like pattern). Anatomical continuity was demonstrated in some PAVM. Amplitude ultrasound angiography can delineate a tangled vascular structure with a clear vessel wall and anatomical continuity as well as conventional angiography. Spectral wave analysis showed a relatively low impedance flow presenting with high peak systolic velocity (mean 44.4 cm/s) and relatively high diastolic velocity (mean 19.3 cm/s). The mean pulsatility index (PI) and resistive index (RI) were 1.80 and 0.49, respectively. In two patients who received embolotherapy the colour Doppler ultrasound scan obtained after the procedure showed that the previous focal areas of colour flow signals disappeared or diminished in size. This was compatible with the decrease in, or absence of, blood flow demonstrated by angiography after embolotherapy. CONCLUSIONS Combined colour Doppler ultrasound and amplitude ultrasound angiography are useful non-invasive techniques for diagnosing PAVM and provide an alternative approach to angiography in evaluating the efficacy of embolotherapy.
肾肿块中的肿瘤血管信号：用多普勒超声检测。
影响因子：
19.7
作者：
Ramos,IM;Taylor,KJ;Kier,R;Burns,PN;Snower,DP;Carter,D
通讯作者：
Carter,D