方法分析了16例肝脏囊性恶性肿瘤的灰阶及彩色多普勒特征。
Methods Characteristics of gray scale and color Doppler sonography were studied in 16 cases of malignant hepatic tumors confirmed by pathology .
人运动的雷达散射回波的获取是研究人微多普勒特征的关键问题。
How to get the proper radar echo is a key problem in research of the micro-doppler features of human beings.
未来，计划调试雷达，通过探测目标的偏振式多普勒特征，以更详细的描述目标。
In the future, it is planned to modify the radar to characterise targets in more detail by exploiting their polarimetric and Doppler signatures.
微动目标电磁散射响应中包含了精细的微多普勒特征信息，因此从雷达特征信号中可以推断出微动目标的特性。
The backscatter of a target with micro-motions contains fine micro-Doppler features, which enables us to determine some unique properties of the target.
目的1对怀疑有脑血管疾病的患者进行经颅彩色多普勒超声（TCCS）检查，探讨颅内动脉狭窄的彩色多普勒及频谱多普勒特征。
Objective 1 To evaluate the character of color Doppler and frequency spectrum Doppler of cerebral artery stenosis by examining the patients who were suspected with cerebrovascular disease with TCCS.
研究二尖瓣腱索破裂（RMCT）的彩色多普勒超声心动图特征。
Study the characteristics of the color Doppler echocardiography of ruptured mitral chordae tendineae (RMCT).
为了探究速度滑冰运动员形态结构与功能特征，利用彩色多普勒血流显像仪对21名速滑运动员的左心室进行检查。
In order to explore the speed skaters' characteristics of physique structure and function, this paper USES color Doppler Blood Stream Picture Instrument to inspect left ventricle of 21 speed skaters.
雷达回波信号中，除幅度、相位和多普勒频移外，还存在第四特征——极化信息。
Besides amplitude, phase and Doppler frequency, polarimetric information is the fourth characteristic in the radar echo.
结果面颈部软组织良、恶性肿瘤在二维超声、彩色多普勒血流显像两方面具有不同的特征。
Results Benign and malignant tumors in cervicofacial soft tissues had different characteristics in the two dimension ultrasound and colour doppler blood flow imaging.
方法回顾总结87例hae的声像图特征，与病理组织类型比较分类，结合彩色多普勒能量显像(CDE)，提出鉴别要点。
Methods the imaging characteristics of 87hae cases were reviewed and compared with histopathology, combinative the role of color Doppler energy (CDE). The differentiation criteria were set up.
结果：慢性肝病患者肝静脉多普勒波形改变具有相对恒定的特征变化；
Results:The features of chronic liver disease changes in Doppler waveform of the hepatic veins remained stable.
结论：彩色多普勒超声可监测肝动脉血流障碍综合征，掌握其特征，有助于肝动脉并发症的早期诊断。
Conclusion: Using color Doppler ultrasonography for detecting the feature of hepatic artery blood stream obstruction syndrome is beneficial for the early diagnosis of hepatic artery complication.
目的：采用彩色多普勒血流显像技术，评价由不同病因引起的二尖瓣返流形态学特征。
Objective: To evaluate vary cases morphology character of mitral regurgitation caused by different causes by Color Doppler Flowing Imaging (CDFI).
结果门静脉海绵样变性的二维超声具有特征性声像，结合彩色多普勒超声可以更加明确诊断。
Results Two-dimensional ultrasonography had characteristic imaging features for diagnosing CTPV which were further definitely diagnosed with color Doppler ultrasonography.
目的探讨老年退行性心脏瓣膜病的彩色多普勒超声特征。
To evaluate the character of Color Doppler ultrasonic of senile degenerative heart valvular desease.
根据LVMI与RWT分析高血压病患者的左心室不同构型，并分析其彩色多普勒超声表现与SVR特征。
Different left ventricular geometric patterns were analyzed according to LVMI and RWT, together with their color Doppler echocardiographic findings and SVR features.
根据生物的生命体行为特征，提出一种新的生物识别方法，并建立了多普勒频移数学模型。
A biological recognition method by feature detection of human body on the move was presented, and the mathematical model of Doppler shift was established.
目的：研究鼻咽癌颈转移淋巴结的彩色多普勒血流信号特征。
Purpose: To study the characteristics of Color Doppler flow signal in cervical lymph nodes with metastasis from nasopharyngeal carcinoma.
结果：50例手术后经病理证实的囊性肾癌患者其二维声像图表现及彩色多普勒表现具有一定的特征。
Result: 50 cystic renal cell carcinoma patients confirmed by pathology after operations have certain features in the performances of two-dimensional acoustic image and color Doppler ultrasonic.
目的探讨门静脉海绵样变性的二维彩色多普勒超声的声像图特征及诊断价值。
Objective To explore characteristic imaging and diagnostic value of cavernous transformation of the portal vein (CTPV) using two-dimensional color Doppler ultrasonography.
目的：探讨婴幼儿皮肤软组织血管瘤的彩色多普勒超声特征。
Objective: To detect the color Doppler ultrasonographic characteristics of cutaneous soft tissue hemangiomas in infants and children.
目的了解鼻前庭囊肿的超声特征，评估彩色多普勒超声扫描对鼻前庭囊肿的诊断价值。
Objective To investigate the ultrasonographic characteristics and the diagnostic value of color Doppler ultrasonography for nasal vestibular cyst.
目的：探讨转移性肝癌（MHC）的彩色多普勒血流显像（CDFI）特征。
Objective:To explore the characters of color Doppler flowing imaging(CDFI)of metastatic hepatic cancer(MHC).
采用了短时傅里叶变换方法对仿真信号进行了时频分析，得到了能够较好地反映目标特征的微多普勒图像。
Short time Fourier transform was used to analyze the simulated signal in the time-frequency domain, a micro-Doppler image that can demonstrate the target characteristics was generated.
方法选择156例RA患者312个膝关节行高频超声检查，观察二维声像图和彩色多普勒血流成像特征。
Methods 312 knee joint in 156 patients with ra were studied with high-frequency ultrasound and color doppler flow imaging.
目的探讨甲状腺瘤（甲瘤）的彩色多普勒超声（CDFI）声像特征。
Objective Discussion tyroma (armor lump) colored Doppler supersonic (CDFI) acoustic image characteristic.
目的探讨乳腺癌的高频超声图像特征及彩色多普勒血流表现。
Objective To evaluate the role of high frequency ultrasonography (HFU) and color Doppler flow imaging (CDFI) features in the diagnosis of breast cancer.
在信号的几何域特征提取方面，给出了利用分形方法分析超声多普勒血流信号的例子。
The fractal method used for Doppler blood flow signals analysis is an example in geometry domain.
目的探讨先天性心脏病左室右房通道的二维声像图及彩色多普勒血流特征。
Objective To investigate the characteristics of Color Doppler Flow Imaging in left ventricular-right atrium communication(LVRAC).
目的：探讨布加综合征的二维及彩色多普勒超声特征。
Purpose: To study 2d and Color Doppler ultrasound features of Budd Chiari syndrome.
应用推荐