多普勒超声心动图潘生丁负荷试验诊断冠心病的临床研究

作者应用ＤＥＴ对３１例冠心病的临床诊断表明，以节段性室壁运动失调为标准诊断冠心病的敏感性和特异性分别为６８％和１００％，而结合多普勒二尖瓣血流参数（Ｅ／Ａ＜１）后敏感性则升至８４％，且特异性无任何降低。与ＭＩＢＩ心肌显象结果十分接近。     

B超和彩色多普勒超声对原发性甲状旁腺功能亢进的诊断价值

报道应用Ｂ型超声及彩色多普勒超声对７６例原发性甲状旁腺功能亢进症进行系统研究的结果。总的诊断效率：敏感性７２％，特异性９２％，正确率８７％，阳性预测值６９％，阴性预测值９２％，以正常位置腺瘤的诊断效率最高，Ｂ型超声及彩色多普勒超声的诊断效率进行比较，敏感性有显著差异（Ｐ＜０．０５），正确率有非常显著差异（Ｐ＜０．０１），说明彩色多普勒超声的诊断正确率较高。本文还讨论了Ｂ型超声对甲状旁腺病变的定位价值、各类甲状旁腺病变的鉴别；同时对异位甲状旁腺病变、原发性甲旁亢危象、各种影像诊断的比较等也进行了讨论。     

多普勒超声心动图对主动脉夹层诊断的评价

本文报道了5例主动脉夹层的多普勒超声心动图的阳性所见,其中4例为DeBakey Ⅲ型,1例为Ⅰ型。其阳性所见;(1)4例降主动脉增宽,1例升主动脉增宽;(2)与脉搏同步的摆动性内膜瓣在腹主动脉内最清楚见到,并在收缩期有红色血流填充;(3)2例在主动脉弓远端可见撕裂口;(4)降主动脉双腔形成,真腔内有彩色血流填充,假腔内则无。以上阳性所见对诊断本病起重要作用。     

小剂量生长抑素激动剂SMS201—995对正常成人胆囊收缩...

Recently, a long-acting, somatostatin analogue, SMS201-995(SMS), has been developed and extensively investigated. It has been proved to be remarkably effective in treating many diseases, including active acromegaly. We observed the effect of SMS on gallbladder contractility in normal adults using the fatty meal test. Our results show that gallbladder contractility was inhibited significantly for 6 hours after the subcutaneous injection of SMS in dosages of 50, 25, 12.5, and 5 micrograms. We conclude that it is not practical to avoid gallbladder disfunction during long-term SMS treatment by decreasing the dosages of SMS.     

儿科消化道疾病的超声检查

小儿消化道疾病中的许多病变需借助影像学检查辅助诊断，其中包括X线平片、消化道造影、CT、超声检查(US)等。随着超声设备的不断完善、高频探头的应用、超声工作者经验的积累，无创、快捷和经济的灰阶及彩色多谱勒超声检查对消化系统疾病的检出率不断提高，应用范围愈加广泛。现就近年来超声检查在该领域的应用进行回顾如下。