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find Keyword "超声" 783 results
  • 高频探头超声在诊断副乳腺中的应用价值

    目的 总结高频探头超声在副乳腺诊断中的应用价值。 方法 回顾分析2009年1月-2010年12月临床怀疑副乳腺患者38例的高频探头超声声像图表现,同时用超声对副乳腺进行术前定位。 结果 高频探头超声对38例(50处)副乳腺成功定位,并手术切除,其病理组织学检查结果均与超声诊断一致。 结论 高频探头超声在副乳腺诊断中具有操作简便、无创伤、价廉、诊断符合率高等优点,是诊断副乳腺的首选辅助检查方法之一。

    Release date:2016-09-08 09:13 Export PDF Favorites Scan
  • Ultrasonographic Diagnosis for Ovaria Torsion during the Pregnant Period of 11 Cases

    摘要:目的: 探讨二维及彩色多普勒超声对妊娠合并卵巢扭转的诊断价值。 方法 :对11例经手术及病理证实的妊娠合并单纯卵巢扭转,进行二维及彩色多普勒和能量多普勒超声图像分析。 结果 :11例患侧卵巢在二维图像中均有不同程度的肿大,超声压痛征均呈阳性反应;其中7例有明显的位置改变,5例有不同程度的盆腔积液;彩色多普勒和能量多普勒显示患侧卵巢内部均无明显血流信号。 结论 :妊娠期卵巢扭转有典型超声图象特征,可为临床提供较可靠的诊断依据。Abstract: Objective: To evaluate the diagnostic value of two dimension ultrasound (2DUS), color Doppler flow imaging (CDFI) and power Doppler imaging (PDI) for ovarian torsion during the pregnant period.〖WTHZ〗Methods : Using the techniques of 2DUS, CDFI and PDI to analyze sonographic features of 11 ovarian torsion cases which were dominated by operation and pathology.〖WTHZ〗Results : The tumescent sick ovaries were detected in all case with ovaries torsion by 2DUS. The patient felt pain when their sick ovaries were pressed. The position of seven sick ovaries was changed. The pelvic effusion was detected in five cases. The blood flow signal was not demonstrated in all sick ovaries by CDFI and DPI.〖WTHZ〗Conclusion : The ultrasonic imaging characteristics are reliable to diagnose ovarian torsion during the pregnant period.

    Release date:2016-09-08 10:12 Export PDF Favorites Scan
  • Study on Evaluation of Hemodynamic Changes of Portal Veins in Patients with Liver Cirrhosis by Color Doppler

    目的 分析彩色多普勒超声对肝硬化患者门静脉血流改变的评价作用。 方法 选择2010年1月-2011年4月收治的50例肝硬化患者作为观察组,其中代偿期患者27例,失代偿期患者23例;同时设置健康对照组50名,比较两组的门静脉内径(Dpv)、门静脉平均血流速度(Vpv)、门静脉血流量(Qpv)。 结果 观察组患者的Dpv增宽,Vpv减慢,Qpv减少,与对照组比较,差异均有统计学意义(P<0.05);且失代偿期患者的改变更为明显,与代偿期患者间差异有统计学意义(P<0.05)。 结论 彩色多普勒超声检查门静脉血流改变可以对肝硬化患者进行初步确诊。

    Release date:2016-09-08 09:13 Export PDF Favorites Scan
  • 子宫峡部剖宫产切口部位妊娠的彩色多普勒超声诊断分析

    目的探讨子宫峡部剖宫产切口部位妊娠的彩色多普勒超声声像图特点,为临床诊疗提供有价值的参考依据。 方法选取2011年8月-2013年7月诊断的12 例子宫峡部剖宫产切口部位妊娠的患者作为研究对象,回顾性分析其彩色多普勒超声声像图特点及临床资料。 结果12例患者中5例停经时间短、妊娠囊较小,位置完全位于子宫峡部切口处因声像图典型而确诊;3例因停经时间长、妊娠囊大部分位于宫腔内,少部分位于切口处误诊为宫内孕;2例切口妊娠流产,误诊不全流产;另外2例因院外人工流产术后阴道流血增多就诊,诊断为切口妊娠。 结论彩色多普勒超声对子宫峡部剖宫产切口妊娠的诊断具有准确性、可靠性。

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  • 急性阑尾炎的高频超声表现

    目的:探讨高频超声对阑尾炎分型诊断的应用价值及临床指导意义。方法:回顾性分析2008年1~3月在华西医院行手术治疗的60例各型阑尾炎(包括急性单纯性阑尾炎、急性化脓性阑尾炎、坏疽及穿孔性阑尾炎、阑尾周围脓肿)的高频超声声像图特征。结果:高频超声根据60例各型阑尾炎, 在各个发病阶段显示阑尾的声像图特征分型诊断单纯性阑尾炎8例,急性化脓性阑尾炎40例,急性坏疽性阑尾炎8例,阑尾周围脓肿4例。结论:高频超声在急性阑尾炎分型诊断中具有重要的实用价值,并能对临床诊断起到重要的参考作用。

    Release date:2016-09-08 10:04 Export PDF Favorites Scan
  • 彩色多普勒超声在胆囊小隆起性病变中的诊断价值

    目的 评价彩色多普勒超声在胆囊小隆起性病变中的诊断价值。 方法 2003年3月-2008年7月收治56例胆囊小隆起性病变患者,其中胆固醇息肉35例,胆囊炎性息肉8例,腺瘤7例,腺肌增生症4例,胆囊癌2例,观察病灶二维图像及彩血流分布及血流频谱特征,均经手术、病理证实。 结果 胆囊息肉常多发,基底窄或有蒂,CDFI不或很少显示血流信号。腺瘤单发为主,基底较宽或有蒂,CDFI不或很少显示血流信号;腺肌增生症(局限型)单发,基底较宽,CDFI不显示血流信号;胆囊癌基底宽,CDFI显示丰富血流信号,多普勒频谱呈低阻动脉频谱。 结论 彩色多普勒超声结合传统二维声像图对胆囊小隆起性病变有较高的诊断价值。

    Release date:2016-09-08 09:47 Export PDF Favorites Scan
  • 应用超声技术评价单纯肥胖儿童左心功能的方法

    摘要:随着单纯性肥胖儿童数量的迅速增长,肥胖对儿童左心功能的影响逐渐引起了大家的重视,对其进行早期评估已很有必要。本文即从常规超声心动图、组织多普勒超声心动图、应变与应变率、Tei指数等四个方面对现阶段通过超声技术早期检测与评价肥胖儿童左心功能的方法做一综述。

    Release date:2016-09-08 10:12 Export PDF Favorites Scan
  • Value of Ultrasonography in Diagnosis and Differentiation of Tumors of Adrenal Gland

    【摘要】 目的 探讨超声显像对肾上腺肿瘤的定位、定性诊断与鉴别诊断价值。 方法 对 2003年1月-2009年1月125例疑为肾上腺肿瘤患者进行超声及CT检查,并经手术与病理证实。超声显像诊断后经手术与病理证实为嗜铬细胞瘤48例,肾上腺皮质腺瘤41例,皮质腺癌11例,肾上腺转移癌 9例,髓样脂肪瘤8例,结节样增生2例,肾上腺结核4例,胰尾部肿瘤1例,肝脏肿瘤1例,肾上极肿瘤1例。 结果 肾上腺肿瘤的病理类型不同,声像图表现亦各不相同。超声显像定位诊断符合率为96.0%(120/125),定性诊断符合率为91.2% (114/125)。 结论 超声显像对肾上腺肿瘤的定位与定性诊断价值较大,可作为临床诊断的首选检查方法。【Abstract】 Objective To assess the value of ultrasonography in the diagnosis and differential diagnosis of tumors of adrenal gland. Methods From January 2003 to January 2009, 125 patients who were suspected to suffering from adrenal tumors underwent ultrasonography and CT examination. The results were then confirmed by surgery and pathology. There were 48 cases of pheochromocytoma, 41 adenoma, 11 adenocarcinoma, 9 metastatic tumor, 8 adrenal medullary lipoma, 2 nubblar hyperplasia, 4 tuberculosis of adrenal gland, 1 tumor of cauda pancreatic, 1 tumor of liver and 1 tumor of upper pole of kidney. Results The ultrasonographic features varied with different pathological types. The accuracy diagnosis of localizition and qualitation were 96.0% (120/125) and 91.2% (114/125) respectively. Conclusion Ultrasonography is useful in diagnosing tumors of adrenal gland, which may be used as the first choice for the disease.

    Release date:2016-09-08 09:50 Export PDF Favorites Scan
  • 应用彩色超声定位辅助异位阑尾切除术

    【摘要】目的 总结应用彩色超声辅助定位在异位阑尾切除术中的作用。方法 2005年4月-2009年8月行阑尾切除术380例,男223例,女157例;年龄10~71岁。根据术前是否行彩色超声定位分为实验组和对照组(n=190),分别施行彩色超声定位改良小切口阑尾切除术和传统切口阑尾切除术。术中共发现异位阑尾40例,分析异位阑尾切除术的术中及术后情况。结果 实验组手术时间、术中是否延长切口、术后切口感染率、住院时间等均明显优于对照组。结论 彩色超声在异位阑尾切除术中有很重要的临床意义。

    Release date:2016-09-08 09:31 Export PDF Favorites Scan
  • Ultrasonography on eyes with silicon oil tamponade

    Objective To investigate the characteristics of ultrasonogram of eyes with silicon oil tamponade. Methods Forty-seven patients (47 eyes) who had undergone the operation of silicon-oil removing were examined by A-(to determine the length of ocular axis) and B-scan before and after the operation respectively. The length of ocular axis and cubage of vitreous chamber were detected and the characteristics of the ultrasonograms were observed according to the default parameters of ultrasonograph. Results The results of A-scan showed that the preoperative axial length was 1.465 times of the postoperative one in the eyes without lens, and 1.284 times in eyes with lens; after modified the parameter according to the acoustic velocity, the preoperative axial length was (0.78±0.34) mm longer than the postoperative one in the eyes without lens, and (0.56±0.32) mm in eyes with lens. The results of A-scan showed that the cubage of vitreous chamber enlarged obviously in eyes with silicon oil tamponade, and the acoustic features included complete filling and partial filling according to the amount of silicon oil. Several arc echoes at the posterior segment of eye were detected in the silicon-oil-filling eyes with retinal detachment. Conclusion In the silicon-oil-filling eyes with lengthened ocular axis, the characteristics of B-scan images are affected by acoustic velocity through silicon oil, the amount of silicon oil capacity and the emulsification of silicon oil. (Chin J Ocul Fundus Dis,2004,20:349-351)

    Release date:2016-09-02 05:58 Export PDF Favorites Scan
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