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find Keyword "超声诊断" 23 results
  • Diagnostic Value of Color Doppler Ultrasonic for Female Breast Cancer: A Meta-Analysis

    Objective To systematically review the clinical value of color Doppler ultrasonic for diagnosing female breast cancer. Methods We electronicaaly searched the databases including The Cochrane Library (Issue 2, 2013), EMbase, PubMed, CNKI, WanFang Data, MedaLink ,VIP and CBM for diagnostic tests on breast cancer diagnosed with color Doppler ultrasonic vs. with pathological biopsy (golden criteria) from 1982 to the March, 2013. Two reviewers independently screened literature according to the inclusion and exclusion criteria, extracted data, and assessed the methodological quality of the included studies according to QUADAS items. The Meta-DiSc software (version 1.4) was used to conduct pooling on sensitivity, specificity, positive likelihood radio, and negative likelihood radio. Heterogeneity test was performed and the summary receiver operating characteristic curve (SROC) was drawn for area under the curve (AUC). Results A total of 25 studies involving 3 274 patients were included. The results of meta-analysis showed that, SPE, SEN, +LR, −LR and DOR were (0.76, 95%CI 0.74 to 0.78), (0.80, 95%CI 0.78 to 0.82), (3.58, 95%CI 2.63 to 4.87), (0.28, 95%CI 0.22 to 0.35) and (13.76, 95%CI 8.47 to 22.36), respectively. The AUC of SROC curve was 0.865 7. Conclusion Current evidence shows that color Doppler ultrasonic has high sensitivity (80%) and high specificity (76%) in the diagnosis of high-frequency Ultrasound. The positive rate in the breast cancer group is 13.76 times as high as that in non-breast cancer, which indicates color Doppler ultrasonic has good diagnostic value for breast cancer.

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  • LOCALIZATION OF SMALL BENIGN TUMOR OF PANCREAS (REPORT OF 12 CASES)

    目的 探讨胰腺良性微小肿瘤的术前及术中定位方法。方法 对1995年1月至2000年8月收治的12例直径lt;2 cm的胰腺良性肿瘤定位方法进行分析。结果 术前B超、CT或MRI和动脉造影的诊断敏感性分别是16.7%、40.0%和87.5%。通过术中探查发现病灶7例(58.3%),其余5例借助于术中B超定位成功4例。结论 术中B超是目前最有价值的定位手段,而且还能提供病灶更详细的资料,对顺利完成手术、减少并发症有重要作用。在定位过程中注意操作细节可提高定位诊断的成功率。

    Release date:2016-08-28 05:30 Export PDF Favorites Scan
  • 糖尿病视网膜病变患者视网膜学流动力学研究

    Release date:2016-09-02 05:58 Export PDF Favorites Scan
  • 眼球内病理膜的超声表现与分型

    本文描述了178例(188眼)各类球内膜的声像图特征。根据声像图表现作出鉴别诊断和提供手术方式,术后检查确定手术效果及长期随访病人预后。手术所见证实,超声诊断准确率为185/188眼,占98.4%. (中华眼底病杂志,1992,8:156-157)

    Release date:2016-09-02 06:36 Export PDF Favorites Scan
  • 高频超声对睾丸卵黄囊瘤的诊断价值

    目的 探讨高频超声对睾丸卵黄囊瘤的诊断价值。 方法 2005年3月-2011年5月11例经手术及病理检查证实为睾丸卵黄囊瘤患者,将其超声影像资料进行回顾性分析。 结果 11例睾丸卵黄囊瘤声像图表现为:边界清楚9例;形态规则8例;混合回声5例,低回声3例,等回声3例;内部血流信号丰富8例;伴钙化2例,液化5例。 结论 睾丸卵黄囊瘤的高频超声表现有一定的声像特征,结合临床症状、血清学检查,对其有重要的诊断价值,是诊断睾丸卵黄囊瘤的首选方法。

    Release date:2016-09-07 02:34 Export PDF Favorites Scan
  • 睾丸畸胎瘤的超声诊断及其鉴别诊断

    目的 总结睾丸畸胎瘤的超声表现。 方法 回顾性分析2006年4月-2011年12月经病理证实的25例睾丸畸胎瘤的声像图特征,彩色血流显像以及超声与病理诊断对比资料。 结果 在25例睾丸畸胎瘤中,未成熟畸胎瘤4例(16%),成熟性畸胎瘤19例(76%),未分类2例(8%)。本组睾丸畸胎瘤超声表现共同特征是:患侧睾丸内部可见囊、实混合性团块,成熟性畸胎瘤的囊性成分多,未成熟畸胎瘤的实性成分多,瘤内检出血流的可能性也增大。 结论 高频超声是诊断睾丸畸胎瘤的重要方法。

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  • 胎儿心脏房室传导的研究进展

    房室传导是胎儿心脏电生理活动的基础;房室传导阻滞的发生将严重影响心脏泵血功能,并危害胎儿健康。现着重对胎儿房室传导的生理、病理及临床等方面的研究进展进行介绍,旨在为胎儿房室传导阻滞等心脏疾病的筛查提供参考。

    Release date:2016-09-07 02:38 Export PDF Favorites Scan
  • Research on the Diagnostic Value of Ultrasonography in Examining Oblique Vaginal Septum Syndrome

    【摘要】 目的 探讨超声检查对阴道斜隔综合征的诊断价值,分析超声图像特点,提高诊断率,为临床选用最佳的手术方式提供依据。 方法 回顾性分析2008年1月-2010年6月经手术确诊为阴道斜隔综合征的15例患者的临床资料及超声检查结果,总结阴道斜隔综合征的声像图特点。 结果 15例经临床确诊为阴道斜隔综合征的患者,超声诊断14例,均表现为双子宫、双宫颈、阴道或宫颈积液/血,9例左肾缺如,5例右肾缺如。误诊1例,为单子宫伴一侧附件巨大囊肿。 结论 超声具有诊断准确、简便、无创、重复性好、价格实惠等优点,对于临床诊断生殖系统畸形具有十分重要的意义,应列为首选检查方式。【Abstract】 Objective To investigate the diagnostic value of ultrasonography in examining oblique vaginal septum syndrome, analyze the characteristics of ultrasound image to improve the ultrasound diagnosis rate, in order to provide guidance for clinical surgeries. Methods We retrospectively analyzed the clinical data and ultrasound examination results of 15 patients diagnosed to have oblique vaginal septum syndrome in our hospital, and summarized their ultrasonographic characteristics. Results Among the 15 patients, 14 were diagnosed to have the disease by ultrasound examination. The ultrasound image showed a double uterus, double cervix, and vaginal or cervical fluid or blood for all the patients among whom 9 had absent left kidney, and 5 had absent right kidney. One patient was misdiagnosed to have single uterus with giant cysts on one side. Conclusions Ultrasound diagnosis is simple, noninvasive, reproducible, affordable and accurate in diagnosing. It is very useful in clinical diagnosis of reproductive system abnormalities and should be listed as the preferred way of examinations.

    Release date:2016-09-08 09:27 Export PDF Favorites Scan
  • Clinical Value of Yolk Sac in Diagnosis of Early Pregnancy

    【摘要】 目的 通过对早期妊娠卵黄囊的观察,探讨其在早孕超声诊断中的临床价值。 方法 2008年5月-2009年1月应用阴道超声诊断仪观察536例早孕患者卵黄囊的形态、大小及卵黄囊的数目,根据结果分为卵黄囊正常及异常组,比较卵黄囊的增长情况与妊娠预后的关系。 结果 504例正常组中,501例正常妊娠结局的卵黄囊大小从孕5~11周持续增长,此后逐渐缩小,孕12周后消失;另3例为宫外孕而中止妊娠。卵黄囊异常组32例。正常组和异常组的卵黄囊大小及形态有统计学意义(Plt;0.05)。 结论 卵黄囊超声影像学改变可作为诊断早孕及预测妊娠发展和转归的可靠手段。【Abstract】 Objective To evaluate the clinical value of yolk sac in the diagnosis of early pregnancy by observing the change of yolk sac. Methods The yolk sacs in 536 pregnant women were measured by ultrasonogaphy from May 2008 to January 2009, and the correlation of the growth condition of the normal or abnormal yolk sac with pregnancy outcome were observed. Results In the normal group (504 patients), the yolk sac size of 501 patients continued to grow from five to 11 weeks of pregnancy, then gradually reduced and disappeared after 12 weeks of pregnancy. The other three patients terminated pregnancy because of ectopic pregnancy. Thirty-two cases of abnormal yolk sac were found. The results showed the size and shape of yolk sacs were significantly different between normal and abnormal groups (Plt;0.05). Conclusion The change of yolk sacs by ultrasonography during early pregnancy can be used as a good measure to diagnosis early pregnancy and predict the development and prognosis of pregnancy.

    Release date:2016-09-08 09:50 Export PDF Favorites Scan
  • Comparison Study of Oral Ultrasound Contrast Agents with Different Echogenic for Gastrointestinal Diseases

    【摘要】 目的 探讨不同回声类型超声造影剂在胃肠疾病诊断中的价值。 方法 采用“胃窗声学造影剂”充盈检查法,用凸阵3.5 MHz探头,对2009年3-8月366名受检者行经腹壁超声检查。受检者随机分为两组:饮水者为A组,饮有回声造影剂者为B组。 结果 选择性地应用合适的造影剂,能有效地提高对胃肠疾病的超声诊断水平。【Abstract】 Objective To evaluate the application of contrast agents with different echogenic in the diseases of stomach and intestine. Methods Totally, 366 patients were included in the study from March to August 2009. Patients were randomly divided into two groups: group A (oral acoustic contrast agent) and group B (water). Contrast-enhanced Doppler sonography was performed with 3.5 MHz abdomen probe. Results Contrast agent with anechoic was good for showing iso-echoic and hyperechoic tissue.Hyperechoic contrast agent was better for showing hypoechoic changes according to its long sitting-time in stomach. Conclusion Contrast enhanced ultrasound has practical value in diagnosis of the diseases of stomach and intestine.

    Release date:2016-09-08 09:50 Export PDF Favorites Scan
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