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【春节特刊进修生系列课件】介入超声在临床中的应用(十五)

  • 2026-03-27 14:06:46
【春节特刊进修生系列课件】介入超声在临床中的应用(十五)

介入超声在临床中

的应用

— 溆浦城南医院超声科 —

01

什么是介入超声

● 在超声显像基础上为进一步满足临床诊断和治疗的需要而发展起来的一门新技术。

● 主要特点是在实时超声的监视或引导下,完成各种穿刺活检、造影以及抽吸、插管、注药治疗等操作,可以避免某些外科手术,达到与外科手术相媲美的效果。此外,术中超声和内镜超声将探头置入体内,用以完成各种特殊的诊断和治疗。据统计,细针穿刺活检的成功率可达89-98%,诊断率达86-94%。

02

主要应用场景

目前,介入性超声已经广泛应用于临床各科室。根据操作目的,我们可以将其分为诊断性和治疗性两大类。

精准诊断:让病理不再“盲穿”

穿刺活检:这是最常见的应用之一。针对甲状腺结节、乳腺肿块、增大的淋巴结或实质脏器的占位(如肝、肾肿瘤),我们可以在超声引导下精准地获取微量组织,送病理检查。这比传统的手术活检创伤更小,且能避开大血管和坏死区域,取材准确率极高。

抽吸与造影:对于胸腹水、心包积液或怀疑感染的脓肿,我们可以进行诊断性穿刺抽液,并将抽出的液体送化验;同时,也可以向体腔或瘘管内注入造影剂,观察其引流路径。

微创治疗:以“针”代“刀”

置管引流:对于肝脓肿、肾积水(经皮肾造瘘)、梗阻性黄疸(PTCD,即经皮肝穿刺胆道引流术),超声引导下的置管引流已成为首选方案。它能在最短时间内解除梗阻,引流积液,且避免了传统手术的高风险。

囊肿硬化治疗:针对肝囊肿、肾囊肿、卵巢单纯性囊肿,我们可以在抽尽囊液后,注入硬化剂(如无水乙醇或聚桂醇),使囊壁上皮细胞失去分泌功能,囊肿逐渐萎缩消失。患者术后仅在皮肤上留有一个针眼 。

肿瘤消融:这是目前发展最为迅猛的领域。通过消融针(射频、微波或冷冻探针)在肿瘤局部产生高温或低温,使肿瘤细胞发生不可逆的坏死。特别是对于肝癌、甲状腺良性结节及部分微小癌,消融治疗已展现出不亚于外科手术的效果,且极大地保留了器官功能 。

心脏介入的革命:近年来,以中国原创的PAN Procedure(无辐射经皮介入技术) 为代表,超声引导技术正逐步打破心脏介入依赖放射线的传统。仅凭超声引导,医生可以完成房间隔缺损封堵、瓣膜修复等复杂心脏手术,实现了“不开刀、无辐射、无造影剂”的绿色介入,甚至可以在移动手术车上进行,将优质医疗资源送到基层 。

03

介入超声优势

相比于CT引导、MRI引导或传统外科手术,超声引导具有不可替代的独特优势 :

● 实时动态监测:超声能实时显示穿刺针的整个行进轨迹,真正实现“指哪打哪”,甚至在术中能看到针尖与病灶、血管的关系。

● 无辐射损伤:超声引导利用声波成像,对操作者和患者均无电离辐射伤害,特别适合孕妇、儿童及需长期治疗的肿瘤患者 。

● 操作便捷高效:超声设备相对便携,不仅可以在超声科操作,还可以移至床旁、手术室甚至救护车上。许多操作耗时短,患者术后恢复快。

● 可重复性强:对于需要分次治疗的病灶(如大肿瘤的分次消融),超声可以反复使用,费用相对低廉。

04

注意事项

● 穿刺患者需由家属陪同,必要时需临床医生陪同。

● 为避免低血糖及晕针等不良反应,请进食后穿刺。

● 患者应向医生提交预约单及已经签字的知情同意书,病理检查申请单。近期本院超声检查单。

● 穿刺过程中患者如有不适,应及时告知医生。

● 穿刺结束后休息并按压穿刺部位30分钟,确保无出血及其它不适后方可离开;保持创面纱布干燥,2日内禁止洗澡及剧烈运动,避免伤口感染。

总结

介入性超声,是上天赐予超声医生的一双“慧眼”和一把“利剑”。它要求我们不仅要有扎实的影像功底,更要有严谨的外科无菌观念和沉着的心理素质。希望这篇概论能为你打开介入超声的大门,在未来的学习中,多看、多想、多练,早日成为一名既能“诊”又能“治”的超声医学专家。

溆浦城南医院超声科

曾林波  副院长/功能科主任  主任医师

13789280298(微信同号)

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  1. CONNECT:[ UseTime:0.001102s ] mysql:host=127.0.0.1;port=3306;dbname=a_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001522s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000733s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000687s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001397s ]
  6. SELECT * FROM `set` [ RunTime:0.000608s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001684s ]
  8. SELECT * FROM `article` WHERE `id` = 476799 LIMIT 1 [ RunTime:0.001096s ]
  9. UPDATE `article` SET `lasttime` = 1775546133 WHERE `id` = 476799 [ RunTime:0.025437s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 66 LIMIT 1 [ RunTime:0.000654s ]
  11. SELECT * FROM `article` WHERE `id` < 476799 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001180s ]
  12. SELECT * FROM `article` WHERE `id` > 476799 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.003241s ]
  13. SELECT * FROM `article` WHERE `id` < 476799 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001760s ]
  14. SELECT * FROM `article` WHERE `id` < 476799 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001961s ]
  15. SELECT * FROM `article` WHERE `id` < 476799 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.007319s ]
0.216229s