血流

Six cases were found to have normal direction of flow,but in the functional test of the involved upper limb,the reversal flow peak value of the ill vertebral artery increased,or the direction of flow turned from normal to reverse.2-dimensional ultrasound showed that 90% of subclavian steal syndrome were caused by arteriosclerosis,10% caused by aortitis.

结果 TCD检查时，24例患者中18例均表现为椎动脉血流反向，肢体束臂试验反向血流增加，6例血流方向正常，束臂试验患侧椎动脉反向峰值血流速度增快，或由正向变为反向。二维超声示引起锁骨下动脉盗血综合征的病因动脉硬化占90％，大动脉炎占10%。

Color Doppler imaging types revealed the luteal blood flow patterned a c ircumferential rim around the entire luteal cyst wall(67.8%),a hemicycle rim around the cyst wall(17.8%)and single blood flow within the cyst wall.

黄体血流分布特征为沿黄体囊壁边缘环状或半环状血流，环状血流占67.8%(99/146)，不连续半环状血流占17.8%(26/146)，仅7.5%(11/146)呈单支条状血流。

During chemotherapy both systolic maximum and diastolic minimum blood flow velocity and resistance index in renal segmental artery and interlobular artery were meaured by color doppler weekly.

于化疗中每周应用彩色多普勒超声仪监测患者肾脏血流，测定肾脏中心区域的区域动脉、叶间动脉的血流速度波形，求得收缩期最高血流速度，扩张期最低血流速度及阻力指数。

The corresponding change of the blood flow of the ophthalmic arteries takes place when the internal carotid artery stricture lead to acute cerebral ischemia. The Vmean, Vmax, RI, PI of the ophthalmia artery showed significant reduce, but the change of Vmin was no difference.

当颈内动脉狭窄引起脑缺血时，眼动脉与脑动脉发生相似的血流动力学改变，眼动脉的平均血流速度、最大血流速度、阻力指数、搏动指数较前均明显降低，而最小血流速度不发生明显改变。

Methods Radionuclide ambulatory renography and color Doppler renal hemodynamics were studied in 30 patients with esential hypertension and left ventricular hypertrophy and 21 healthy control group. The glomerular filtration rate,renal index and the distribution of intrarenal artery were investigated.The resistive index, the systolic peak velocity,andthe low diastolic flow velocity and acceleration time of theintrarenal arterial flow were measured. Results Compared with control group the density of intrarenal artery of patients with esential hypertension and left ventricular hypertrophy were significantly decreased.

对30例高血压伴左室肥厚病人及21例年龄相当的健康人对照组行核素动态肾功能检测及彩色多普勒超声肾血流动力学检查，测定肾小球滤过率和肾脏指数及肾内动脉分布，段动脉、叶间动脉的阻力指数，血流峰速加速时间，收缩期最大血流速度，舒张期末最低血流速度。

Twelve tumors were solid and three contained cystic components. Nine were inhomogeneously hypoechoic. Two were homogeneously hypoechoic. Two were inhomogeneously isoechoic. Two were homogeneously isoechoic. Two contained microcalcification. One with acoustic shadowing. Twelve were well-defined and three were ill-defined. Fourteen were regular and one was irregular. Four had acoustic halo. Six were ecstatic. Nine were not ecstatic. Thirteen were examined with color Doppler ultrasound. Nine had abundent branched blood flow within the tumor and ring blood flow around. Two had short linear blood flow within the tumor and ring flow around.

不均质低回声9个，均匀低回声2个，不均质中等回声2个，均匀中等回声2个。2个肿瘤内见细小钙化斑，1个伴声衰减。12个肿瘤边界清，3个边界欠清。14个肿瘤形态规则，1个形态不规则。4个肿瘤伴&晕环征&。6个肿瘤有膨胀感，9个肿瘤无明显膨胀感。13个肿瘤行彩色超声检查，9个内部见丰富分枝状血流，周边见环状血流，2个内部见短线状血流，周边环状，仅2个内部无彩色血流，周边见点状彩色血流。

Ovarian stromal flow PSV, EDV and perifollicular vascularity are highly interrelated with ovarian response. Ovarian response will be improved when ovarian blood velocity increases and perifollicual blood flow is abundant. Follicular fluid VEGF level was obviously higher in poor responder group, which suggests VEGF be secreted increasing for compensating due to reduced ovarian stromal blood velocity and fewer perifollicular vascularity.

卵巢基质内血流的PSV、EDV和卵泡周血流分布、卵泡液VEGF水平与卵巢的反应性密切相关，卵巢基质内血流速度升高、卵泡周边血流丰富，有助于提高卵巢的反应性；低反应卵巢组卵泡液VEGF水平显著升高，推测是由于其卵巢基质内血流速度低，卵泡周血管分布少，导致VEGF代偿性分泌增加。

Methods 50 patients with diabetes and contrast group were observed, with transcrianial color Doppler flow imaging, cerebral blood stream velocity; pulsative index,resistive index and S/D were calculated of middle cerebral artery, anterior cerebral artery and posterior cerebral artery Results (1)Changes of cerebral blood stream velocity were non-specifitical in blood waves of TCDFI, but VE was reduced.

目的 为探讨糖尿病对脑血管的，而对脑动脉血流动力学进行对比。经临床诊断糖尿病50例，行TCDFI检测大脑中动脉、大脑前动脉、大脑后动脉等血管的血流速度指标及搏动指数、阻力指数，收缩期血流速度/舒张末期血流速度及频谱形态分析与健康组对照比对分析。结果(1)TCDFI频谱中，血流速度的变化，Vmax是非特异性的，而VE是明显下降的。

The trophoblast blood flow spectrum could be easily detected with the guide of CDE.The ultrasonic findings were characterized by broad arterial flow spectrum,high diastolic component of the low resistance trophoblastic flow,RI＝0.40～0.51 with single or biphasic spectrum.The salpingian ring with high blood flow indicated early and complete salpingian pregnancy.

结果：①异位妊娠包块血流信号丰富，血管连续性好，能较完整显示血管床、血管网及范围广的低流速血流信号；②脉冲多普勒取样为滋养层周围性血流频谱，其特征为：频谱增宽、单相或双相持续存在、阻力降低(RI＝0.44±0.04)、舒张期血流丰富的动脉频谱；③具有鲜明丰富的滋养层周围性彩色血流频谱特征的&输卵管环&是早期输卵管妊娠的特征性表现，并提示是输卵管完整存在的标志。

Methos Color Dppler sonography was used to assess the changes of hernodynamics of 90 patients with acute scrotum The intra and exera-testicular blood flow were found to be either normd diminished; absent or increased The sensitively and specificy of CDS in the diagnosis of ten testicular torsion in which blood flow was completely deprive were 100%; five of them have violent sports The sensitivity specificity of CDS in the diagnosis of tesicular and epididymal inflammation in which blood flow were 86% and 100%.

应用彩色多普勒血流超声诊断仪对90例急性阴囊肿痛患者的睾丸、附睾进行检测。并观察睾丸、附睾的血流动力学改变情况。结果(1)无血流灌注10例，低血流灌注20例，高血流灌注43例，正常血流灌注17例；(2)睾丸扭转10例，睾丸炎及附睾炎50例，阴囊外伤30例。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。