Heyder N, Lutz H, Lux G, Demling L
Scand J Gastroenterol Suppl. 1984;94:85-90.
Endoscopic ultrasonography was developed in an attempt to utilize the improved resolution of small-parts ultrasonography also in the investigation of organs located deep within the body as opposed to at the surface. A further expected advantage vis-à-vis external ultrasonography was the avoidance of the frequently obstructing air. In an initial study of 40 patients with a variety of different diseases of the upper abdomen, we were indeed able to utilize the advantages described, with the result that diagnostic information was obtained that neither external ultrasound nor endoscopy was able to provide. A limitation of endoscopic ultrasonography is the fact that the "path" of the transducer is predetermined by the course of the gastrointestinal tract. A further difficulty is the anatomic orientation. To combat this latter problem, our working group has under X-ray control, established standard position for the ultrasound endoscope.
内镜超声检查的发展旨在将小部件超声检查所提高的分辨率用于检查位于身体深部而非体表的器官。相对于体外超声检查，另一个预期优势是避免经常造成干扰的空气。在对40例患有各种不同上腹部疾病的患者进行的初步研究中，我们确实能够利用上述优势，从而获得了体外超声和内镜检查均无法提供的诊断信息。内镜超声检查的一个局限性在于，换能器的“路径”由胃肠道的走向预先确定。另一个困难是解剖定位。为解决后一个问题，我们的工作组在X射线控制下确定了超声内镜的标准位置。
