超声对腹膜病变的诊断价值

应用超声实时显像仪，检查４９例腹膜病变，均经病理证实。结果检出结核性腹膜炎３１例，腹膜转移癌８例，腹膜原发性肿瘤１０例，超声诊断符合率分别为７０．９７％，７５．００％，９０．００％。结核性腹膜炎与腹膜肿瘤两组间。腹水的阳性率无明显差异。通过超声对腹膜改变，腹块及周围脏器间关系的观察，有助于辨别病变性质；同时对诊断尚不明确者行超声引导下穿刺腹膜病理学检查，亦使诊断更加善。     

超声心动图诊断原发性心脏肿瘤

目的：探讨原发性心脏肿瘤超声心动图(ECG)特征。方法：利用ECG检查42例心脏肿瘤。其中粘液瘤38例，恶性肉瘤2例，均经手术病理证实。横纹肌瘤2例，经随访证实。结果：ECG对38例粘液瘤，2例横纹肌瘤全部做出正确诊断。2例恶性肿瘤提示相应部位占位病变。粘液瘤多发生在左房，有明确的瘤蒂，肿瘤回声稀疏，活动度大。恶性肿瘤回声较强、无蒂，活动度小。横纹肌瘤多发生在室壁心肌内，呈结节状，与正常心肌间有明确的界限。结论：ECG对原发心脏肿瘤的诊断具有重要意义，可初步区分良、恶性肿瘤。     

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。     

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.