This study was designed to perform a comparative analysis between endoscopic ultrasonography (EUS) and double contrast-enhanced ultrasonography (DCEUS) for the preoperative diagnosis of gastric stromal tumors (GSTs). A retrospective study was conducted involving 139 patients with histologically confirmed GSTs. All patients preoperatively underwent DCEUS and EUS. The pathology reports were treated as the baseline and were retrospectively compared with the findings of EUS and DCEUS. Of the 139 lesions, 120 and 113 were correctly identified by DCEUS and EUS, respectively, with an accuracy of 86.3% and 81.3%. The results revealed an insignificant difference between these two methods (p = 0.189). DCEUS can display not only the locations, sizes, shapes, borders, internal echoes, but also show the blood perfusion patterns of GSTs. It is a highly accurate, noninvasive, and convenient method to be used at the pre-treatment stage.

中文翻译：

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超声内镜与双重超声造影在胃间质瘤术前诊断中的比较


本研究旨在对内镜超声检查（EUS）和双重对比增强超声检查（DCEUS）在胃间质瘤（GST）的术前诊断中进行比较分析。一项回顾性研究涉及 139 名经组织学证实有 GST 的患者。所有患者术前均接受DCEUS和EUS检查。以病理报告为基线，与EUS和DCEUS的结果进行回顾性比较。在139个病灶中，DCEUS和EUS分别正确识别了120个和113个病灶，准确率分别为86.3%和81.3%。结果显示这两种方法之间没有显着差异（p = 0.189）。 DCEUS不仅可以显示GST的位置、大小、形状、边界、内部回声，还可以显示GST的血流灌注模式。它是一种高精度、无创且方便的方法，可在治疗前阶段使用。