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find Keyword "多普勒" 116 results
  • Screening, Prevention and Treatment of Venous Thrombosis for 235 Lushan Earthquake Victims

    Objective To report the screening, prevention and treatment of venous thrombosis for Lushan earthquake victims in the West China Hospital of Sichuan University. Methods Among the Lushan earthquake victims screened by vascular color Doppler, those with detected venous thrombosis were treated reasonably, and those without detected venous thrombosis were prevented early. Results There were total 235 Lushan earthquake victims in the hospital as of the 11th day after earthquake, and they were screened by vascular color Doppler. Among 26 cases with detected venous thrombosis, 25 were lower limb venous thrombosis, and the other one was upper limb venous thrombosis. Three cases were treated by rehabilitation intervention alone, three cases were treated by drug intervention alone, and the other 20 cases were treated by both rehabilitation and drug intervention. As of 30 days after the earthquake, the reexamination results of 26 victims with venous thrombosis showed that: 11 cases improved, including 5 completely recanalization and 6 incompletely recanalization. Among the three cases with drug intervention alone, one got completely recanalization, accounted for 33.33%. Among the three cases with rehabilitation intervention alone, one got incompletely recanalization, accounted for 33.33%. Among the 20 cases with both rehabilitation and drug intervention, four got completely recanalization, accounted for 20.0%, and five got incompletely recanalization, accounted for 25.0%. Conclusion Most Lushan earthquake victims with venous thrombosis are the elderly and women, stay in the ICU, and suffer from fractures in different degrees. The timely prevention and treatment can relieve local pain, promote early entry in the rehabilitation treatment, and prevent pulmonary embolism and other risks. The rehabilitation intervention and/or drug intervention should be adopted to the victims with detected venous thrombosis as well as the victims without detected venous thrombosis but have high risk factors, for it can effectively prevent and treat the further thrombosis and other bad consequences of the detachment of thrombus.

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  • 彩色多普勒超声在透析患者动静脉内瘘并发症中的应用

    目的 探讨彩色多普勒超声在透析患者动静脉内瘘并发症中的应用价值。 方法 2009年1月-2012年4月应用彩色多普勒超声检测129例透析患者动静脉内瘘瘘口、桡动脉、头静脉的解剖及血流动力学状况。 结果 129例透析患者动静脉内瘘中103例动静脉内瘘通畅,12例血栓形成,7例狭窄,4例静脉瘤样扩张,2例血肿,1例局部感染。 结论 彩色多普勒超声是监测透析患者动静脉内瘘血管通路的无创、简便、快速、有效的检测方法,能明确诊断动静脉内瘘并发症,还能快速诊断其低血流量原因,从而为临床及时治疗提供科学依据。

    Release date:2021-06-23 07:35 Export PDF Favorites Scan
  • Abdominal Color Doppler Ultrasonography Combined with High-frequency Ultrasonography Diagnosing Benign Polypoid Lesion of Gallbladder

    目的 探讨经腹部彩色多普勒超声(腹部超声)联合高频超声诊断良性胆囊息肉样病变的价值。 方法 回顾性分析2008年1月-2011年11月121例腹部超声联合高频超声检查提示为良性胆囊息肉样病变、且有手术病理检查结果的患者资料进行对照,以此评价经腹部超声联合高频超声对良性胆囊息肉样病变的诊断准确性。 结果 121例术前经腹部超声联合高频超声诊断为良性胆囊息肉样病变的患者,手术后病理检查结果示胆固醇息肉62例(51.24%),炎性息肉27例(22.31%),腺瘤6例(4.96%),腺癌3例(2.48%),胆囊结石14例(11.57%),腺肌症3例(2.48%),囊壁腺体结构紊乱3例(2.48%),黏膜下层软结节3例(2.48%)。经腹部超声联合高频超声与手术后病理对比检查,其诊断符合率为78.51%(95/121),误诊率为21.49%(26/121)。 结论 经腹部超声联合高频超声检查对良性胆囊息肉样病变诊断准确性较高,可为临床预防胆囊癌前病变提供依据。Objective To investigate the value of abdominal color Doppler ultrasonography (CDU) combined with high-frequency ultrasonography (HFU) diagnosing benign polypoid lesion of gallbladder (B-PLG). Methods A total of 121 patients with B-PLG diagnosed by CDU combined with HFU between January 2008 and November 2011 were randomly selected. All of the patients underwent the surgery and had the record of surgical pathological examination results, which were compared with the results of the ultrasonography in order to evaluate the diagnostic accuracy of CDU combined with HFU for B-PLG. Results In 121 patients with B-PLG diagnosed by CDU combined with HFU before the surgery, cholesterol polyp was found in 62 (51.24%), infective polyp was found in 27 (22.31%), adenoma was found in 6 (4.96%), adenocarcinoma was found in 3 (2.48%), gallstones was found in 14 (11.57%), adenomyosis was found in 3 (2.48%), the wall structure gland disorder was found in 3 (2.48%), and submucosal soft nodules was found in 3 (2.48%) after the surgical pathological examination. Coincidence rate between CDU combined with HFU diagnosis and surgical pathological diagnosiswas 78.51% (95/121), and the misdiagnosis rate of CDU combined with HFU was 21.49% (26/121). Conclusion The accuracy of CDU combined with HFU diagnosing B-PLG is high, which can help to prevent precancerous lesion of gallbladder cancer.

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  • Examination and Diagnosis of Bladder Rupture with Color Doppler Flow Image

    目的 探讨彩色多普勒超声诊断膀胱破裂的诊断价值,以提高膀胱破裂的超声诊断水平。 方法 回顾性分析2002年1月-2011年9月术前行彩色超声检查诊断膀胱破裂并经手术证实的5例患者资料,下腹加压检查和经导尿管注水试验检查作为超声判断有无膀胱破裂的重要检查方法。 结果 5例均为腹膜外型膀胱破裂,彩色多普勒血流显像明确诊断4例,漏诊1例,超声检查是诊断膀胱破裂的有效方法。 结论 彩色多普勒超声可以作为膀胱破裂的首选检查技术。Objective To investigate the value of color doppler flow image (CDFI) in diagnosing bladder rupture, in order to promote the ultrasound diagnosis for the disease. Methods We retrospectively analyzed the medical data of 5 patients with bladder rupture diagnosed by CDFI before operation and confirmed by surgery. Pressing the lower abdomen and injecting water through catheter were the main examination methods for CDFI in diagnosing bladder rupture. Results All the 5 cases were bladder rupture of extraperitoneal type. Four were diagnosed with CDFI, and 1 was misdiagnosed. The ultrasonic examination was an effective technology in diagnosing bladder rupture. Conclusion CDFI may be regarded as the first diagnostic technology for bladder rupture.

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  • Clinical Observation of Insulin Resistance and Diabetic Cardiac Insufficiency in Type 2 Diabetes Mellitus

    【摘要】 目的 探讨2型糖尿病(T2DM)胰岛素抵抗导致糖尿病性心功能不全的临床表现特点及相关激素的改变。 方法 2008年1-4月对T2DM患者35例(胰岛素抵抗指数HOMA-IRlt;2.69者19例为A1组,HOMA-IR≥2.69者16例为A2组)及健康体检者20人B组测体重指数(BMI)、空腹血糖(FPG)、胰岛素、心钠素(ANP)、脑钠素(BNP)水平;心脏彩色多普勒超声分别测E/A、e/a、S/D、LVEF、DT期。 结果 A2组BMI较A1、B组均明显增加(Plt;0.05),A1、B组间差异无统计学意义(Pgt;0.05)。ANP、BNP及DT值在A1、A2组均较B组增高(Plt;0.05),BNP在A2组高于A1组(Plt;0.05),ANP、DT值在A1、A2组间差异均无统计学意义(Pgt;0.05)。E/A、e/a和S/D在A1、A2组均较B组降低(Plt;0.05),A1、A2组间差异均无统计学意义(Pgt;0.05)。A2组患者LVEF较A1、B组均明显降低(Plt;0.05),A1、B组间差异无统计学意义(Pgt;0.05)。 结论 随着胰岛素抵抗加重,心肌舒张顺应性较差和收缩力下降,伴随相关激素(心脏利钠肽)分泌增加,最终产生心功能不全的临床表现、体征及多普勒超声心动图表现。【Abstract】 Objective To investigate the clinical features and related hormone changes of diabetic cardiac insufficiency leaded by insulin resistance in type 2 diabetes mellitus (T2DM). Methods From January to April 2008, 35 patients with T2DM (group A1: HOMA-IRlt;2.69, n=19; group A2: HOMA-IR≥ 2.69, n=16) and 20 subjects without T2DM (group B) were enrolled. The body mass index (BMI), fasting plasma glucose (FPG), insulin (FINS), atrial natriuretic peptide (ANP), brain natriuretic peptide (BNP), and E/A, e/a, S/D, LVEF and DT stage of all subjects were detected. Results The BMI in group A2 was higher than those in group A1 and group B (Plt;0.05), while the difference between the later two groups was not statistically significant (Pgt;0.05). The ANP, BNP and DT stage were all higher than those in group B (Plt;0.05), the BNP was higher in group A2 than in group A1 (Plt;0.05), while the difference of neither ANP nor DT stage between the later two groups was statistically significant (Pgt;0.05). The values of E/A, e/a and S/D in group A1 and A2 were all lower than those in group B (Plt;0.05), while there were no statistically significant diferences between group A1 and A2 (Pgt;0.05). The values of LVEF of group A1 and A2 were both significantly reduced than that in group B (Plt;0.05), and the values in group A2 were the lowest (Plt;0.05). Conclusion With the aggravating of insulin resistance, myocardial contractility and diastolic function will decline, meanwhile the ANP and BNP secretion will increase, and then the clinical and echocardiographic manifestation will appear.

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  • Applicative Value of US-elastograph Imaging in Diagnosis of Thyroid Micro-carcinoma

    【摘要】 目的 探讨弹性成像在甲状腺微小癌诊断中的应用价值。 方法 回顾性分析从2007年12月-2008年4月间经病理证实的10例甲状腺微小癌患者共11个病灶的超声表现。 结果 彩色多普勒超声诊断甲状腺微小癌8例8个病灶,利用弹性成像技术诊断10例10灶。传统彩色多普勒超声对甲状腺微小癌的诊断率为72.7%;利用弹性成像技术对甲状腺微小癌的诊断率为90.9%。 结论 弹性成像技术对于甲状腺微小癌是对彩色多普勒超声检查的有益的补充,能够显著提高超声对甲状腺微小癌诊断的准确性。【Abstract】 Objective To evaluate the application of US-elastography in diagnosis of thyroid microcacinoma. Methods The images of color ultrasound and ultrasound elastography from 11 lesions of 10 patients with thyroid micro-carcinoma diagnosed via histopathology between December 2007 and April 2008 were retrospectively analyzed. Results Eight patients with eight lesions were found by colour ultrasound and 10 patients with 10 lesions were observed by ultrasound elastography. The diagnosis accurate rate of ultrasonography was about 72.7% and of ultrasound elastography was about 90.0%. Conclusion US-Elastography is a beneficial addition in diagnosis of thyroid microcacinoma by colour ultrasound. It can remarkably develop the accurate rate of the diagnosis of the disease.

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  • 小儿肠系膜淋巴结炎的彩色多普勒超声诊断

    【摘要】 目的 探讨彩色多普勒超声对小儿肠系膜淋巴结炎诊断价值。 方法 将71例彩色多普勒超声检查诊断为肠系膜淋巴结炎患儿的淋巴结大小、数目及血流情况与33例正常组的彩色多普勒超声检查肠系膜淋巴结的情况进行统计、对比分析。 结果 71例彩色多普勒超声诊断为肠系膜淋巴结炎的患儿中,5例剖腹探查诊断为阑尾炎合并阑尾周围淋巴结肿大,5例失访。余61例患儿淋巴结大小、同一切面淋巴结数目与正常组比较,差异有统计学意义(Plt;0.01),淋巴结内血流情况与正常组比较,差异有统计学意义(Plt;0.05)。 结论 彩色多普勒超声在肠系膜淋巴结炎的诊断中有重要的意义,是临床诊断小儿肠系膜淋巴结炎的首选辅助检查方法之一。

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  • Application of Color Doppler Ultrasonography in Diagnosing Renal Artery Stenosis

    【摘要】 目的 评价彩色多普勒超声对肾动脉狭窄(ARAS)的诊断指标及准确性。 方法 1999年10月-2008年12月对患有高血压病的58例共113根肾动脉进行彩色多普勒超声检查。每例患者均测量肾动脉峰值流速(PSV)与肾内段动脉的阻力指数及肾脏长轴。在双盲条件下,以患者肾动脉造影、MRI血管造影及CT血管造影为标准,评价彩色多普勒超声诊断ARAS的诊断指标及准确性。 结果 彩色多普勒超声诊断肾动脉狭窄的敏感性为60%,特异性为83%,阳性预测值为83%,阴性预测值为61%。患侧肾长轴小于健侧肾长轴,患侧肾峰值流速高于健侧肾峰值流速,患侧肾阻力指数低于健侧肾阻力指数。 结论 肾动脉彩色多普勒超声对于肾动脉狭窄初筛诊断以及评价肾动脉狭窄介入治疗后的近、远期疗效,是一种简便可靠的无创检查手段。【Abstract】 Objective To evaluate the accuracy and index of color Doppler ultrasonography (CDU) diagnosing renal artery stenosis (RAS).〖WTHZ〗Methods〖WTBZ〗A total of 113 renal arteries of 58 patients with hypertension from October 1999 to December 2008 were examined by CDU. The peak systolic velocity (PSV) of the renal artery, resistant index of interior artery of kidney,and long axis of kidney of each patient were obtained. Under the double-blind condition, accuracy and diagnostic index of CDU for diagnosing RAS were evaluated according to the standard of renal arteriography, magnetic resonance angiography or computerized tomography angiography. Results The sensitivity of CDU for diagnosing RAS was 60%, specificity was 83%, positive predictive value was 83%, and negative predictive value was 61%. Long axis of kidney in patients with RAS was shorter than that in the healthy ones. The PSV in patients with RAS was higher than that in the healthy ones, and the resistant index of section artery of kidney in patients with RAS was lower than that in the healthy ones. Conclusion CDU is an easy and reliable non-invasive examination for early diagnosis and screening of RAS and for evaluating a short-or long-term therapeutic effect.

    Release date:2016-08-26 02:21 Export PDF Favorites Scan
  • Changes of Heart Function Caused by Doxorubicin in Rabbits

    【摘要】 目的 采用多柔比星(doxorubicin,DOX)制备心肌损伤动物模型,评价各种检测心功能变化方法的意义。  方法 14只新西兰大白兔,DOX耳缘静脉注射,每周3 mg/kg,共10周。分别于给药前、第4周末及实验结束时测定血清肌钙蛋白Ⅰ(cTnI)和脑钠肽(BNP)水平,彩色多普勒超声心动图检测心功能变化,并观察心肌组织病理形态学改变及心肌细胞凋亡情况。 结果 使用DOX前后对比,血清cTnI和BNP浓度升高(Plt;0.05);左室射血分数(LVEF)和左室短轴缩短率(LVFS)下降(Plt;0.05);心肌组织病理显示心肌细胞出现不同程度的空泡变性与水肿,细胞间隙明显增宽,大量炎性细胞浸润。心肌细胞凋亡明显增加。 结论 结合心脏超声检查和血清cTnI、BNP指标检测可判断心肌损伤程度。【Abstract】 Objective To observe the changes of heart function caused by doxorubicin in rabbits. Methods A total of 14 New-Zealand white rabbits were intravenous-injected with doxorubicin with a dosage of 3 mg/kg intravenously once a week, and the accumulative dose was 30 mg/kg. Before the medication and at the 4th and 10th weekend after the medication, the serum levels of cardiac troponin I (cTnI) and brain natriuretic peptide (BNP) were measured; left ventricular ejection function (LVEF) and left ventricular fractional shortening (LVFS) were performed on the rabbits respectively. At the 10th weekend, the pathological changes of cardiac tissue and the apoptosis of myocardial cell were detected. Results The levels of cTnI and BNP significantly increased (Plt;0.05), and the LVEF and LVFS markedly decreased (Plt;0.05) after the administration of doxorubicin. Uneven vacuolar degeneration and edema of cardiocytes could be observed with a wide cell spaces and inflammatory cell infiltration in the histopathological slices. Conclusion The combined application of heart sonography with the detection of the serum levels of cTnI and BNP can evaluate the degree of myocardial damage of the rabbits models very well.

    Release date:2016-08-26 02:21 Export PDF Favorites Scan
  • Ultrasonography in the Diagnosis of Benign and Malignant Breast Masses

    目的:探讨乳腺良恶性肿块二维超声图像和彩色多普勒血流状况,提高乳腺肿块的超声诊断符合率。方法:回顾性分析105例乳腺肿块的二维及彩色多普勒超声图像特点。结果:本组恶性肿块37例,超声诊断和疑诊恶性肿块32例,符合率为865%(32/37);良性肿块68例,超声诊断良性肿块58例,符合率为853%(58/68)。乳腺良恶性肿块在形态、 边界、 包膜、 内部回声、 后方回声、 沙粒样钙化、血流形态分布,血流动力学等方面具有明显差异。结论:二维及彩色多普勒超声对良恶性乳腺肿块有较高鉴别诊断价值。

    Release date:2016-08-26 02:21 Export PDF Favorites Scan
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