目的探讨胎儿肝静脉的多普勒血流频谱及其临床意义。
Objective To study the Doppler flow spectrum of fetal hepatic vein.
结论：彩色多普勒血流频谱形态在小乳腺癌早期诊断中具有较高的应用价值。
Conclusion: The color Doppler flow spectrum have high applicated value in early diagnosis of small mammary cancer.
结论彩色多普勒血流频谱形态是鉴别甲状腺良恶性肿块的一项值得重视的指标。
Conclusions: The Doppler flow spectrum is an important index for differential diagnosis of thyroid lumps.
本文还讨论了多囊肾血流多普勒频谱变化的机制。
Mechanism of Doppler blood flow ultrasonic spectrum of the polycystic kidney was discussed.
目的设计一套数字化脉冲波超声多普勒系统，以实现多深度血流频谱分析和显示。
Objective To design a digital multigated PW ultrasound Doppler system and validate the system in experimental study.
目的：运用多普勒肺血流频谱，观察不同术式的肺切除后右心后负荷及泵功能的变化情况。
Objective: To study on the changes of right cardiac afterload and right ventricle pumping function according to different operation ways after pulmonary resection by Doppler pulmonary flow spectrum.
频谱多普勒显示狭窄近段血流速度增高，远段流速减低。
Spectrum Doppler showed increased blood flow velocity in the proximal stenosis, and distal flow reduction.
结果病变血管在二维超声图像，彩色多普勒血流显像以及频谱多普勒方面差异均有显著性。
Results the differences of various diseased blood vessels are remarkable among the two-dimensional ultrasonic images, the color doppler? Ow images and frequency spectrum doppler.
研制以超声波为载体的电路系统，探测眼部血流多普勒信号，并进行频谱分析。
A set of circuits for detecting ophthalmic blood flow Doppler signals was developed and spectral analysis was realized as well.
用彩色能量图显示低速血流，用脉冲多普勒寻找高舒张期低阻力滋养动脉血流频谱。
The blood flow frequency imaging of peritrophoblastic artery flowing was searching by pulse Doppler, it was high extending flow and low resistance.
目的：应用彩色多普勒技术检测糖尿病兔视网膜血流频谱，旨在探讨糖尿病视网膜病变早期血流变化的特点及其发生机制。
AIM: To detect the flow frequency spectrum of diabetic rabbits with color Doppler imaging (CDI), and evaluate the flow characteristic and occurrence mechanism of early diabetic retinopathy (DR).
结果通过血流多普勒信号的小波尺度图研究科室，发现利用小波尺度图可以眼科提高血流多普勒信号低频段的频谱分辨率。
Result Wavelet scalogram of blood flow ultrasonic signal had a higher distinguishability than STFT spectrogram in the low frequency portion, but had poorer decussation terms than spectrogram.
目的：观察动脉硬化模型兔腹主动脉血流频谱，探讨超声多普勒检查诊断早期动脉硬化的局限性。
Objective: To assess the limitation of Doppler spectra in evaluating early arteriosclerosis by observing aortic flow spectra in rabbit models.
应用脉冲式多普勒超声心动图检测40例正常儿童肺静脉血流频谱。
Pulsed Deppler echocardiography was used to detect the pulmonary venous flow pattern (PVFP) in 40normal children.
结果 ：在回顾分析有淋巴结微转移的19例患者的彩色多普勒成像中，15例得到丰富的形态学改变或血流显示，且有12例获得动脉血流频谱。
Results : There were 19 cases of lymph node micrometastases in 15 patients with the rich in color Doppler and morphological changes in blood flow , and 12 patients were arterial flow spectrum .
肝门静脉血流速度变化及肝右静脉多普勒频谱图异常有助于脂肪肝的早期诊断及预后判断。
To investigate the diagnostic value of measuring blood velocity in right branch of portal vein and Dopplers onographic waveforms in right hepatic vein by CDFI on Fatty Liver Disease.
彩色多普勒显示病变区呈蓝红相间的彩色血流信号，脉冲多普勒显示连续带状门脉血流频谱。
Pulsed Doppler spectra showed image of smooth continuous bands in the honeycomb or snaky black areas.
结果：前列腺癌周边血流丰富，彩色血流信号呈花环状或点棒状，多普勒频谱测值为高阻力指数特征。
Results:The blood flow was abundant around the cancer tissue. The color signal of blood flow showed garland-like or punctate. The feature of its Doppler spectrum was o…
目的探讨二尖瓣口血流频谱和瓣环的组织多普勒频谱与左室平均舒张压的关系。
Objective To determine the relationship between left atrial diameter and mitral valve area or left atrial mean pressure in patients with rheumatic pure mitral stenosis.
目的探讨二尖瓣口血流频谱和瓣环的组织多普勒频谱与左室平均舒张压的关系。
Objective To determine the relationship between left atrial diameter and mitral valve area or left atrial mean pressure in patients with rheumatic pure mitral stenosis.
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