Gooding G A, Hardiman T, Sumers M, Stess R, Graf P, Grunfeld C
J Ultrasound Med. 1987 Aug;6(8):441-7. doi: 10.7863/jum.1987.6.8.441.
To evaluate the possibility that sonography might be effective in the clinical detection of foreign bodies in the soft tissues, we used high-resolution sonography to study 10 patients with suspected foreign bodies in the hand and foot. Using ultrasound, we detected foreign bodies (glass, metal wire) in the sole of the foot of two patients and glass in the hand of another. Seven patients were proved to be free of foreign bodies. In an experimental model to ascertain which types of foreign bodies could be detected by ultrasound, wood, glass, and metallic foreign bodies 2.5 cm in length that had been inserted into the flesh of a chicken breast were immediately identified by high-resolution sonography. Ultrasound also pinpointed the surface beneath which the foreign bodies lay and localized all precisely as to depth from the surface. While detection of a foreign body is important, precise localization is crucial to avoid miscalculation of surgery leading to increased tissue damage, blood loss, and an increased risk of complications. This initial study suggests that high-resolution sonography has applicability in both the detection and the precise localization of foreign bodies in the soft tissues, but the sensitivity and specificity of the procedure remains to be determined.
为评估超声检查在临床检测软组织异物方面可能有效的可能性，我们使用高分辨率超声对10例疑似手足部存在异物的患者进行了研究。通过超声检查，我们在两名患者的足底检测到了异物（玻璃、金属丝），在另一名患者的手部检测到了玻璃。7名患者被证实没有异物。在一个实验模型中，为确定哪些类型的异物可以通过超声检测到，我们将长度为2.5厘米的木质、玻璃和金属异物插入鸡胸肉中，高分辨率超声能够立即识别出这些异物。超声还能精确确定异物所在的表面下方位置，并准确地定位异物距表面的深度。虽然检测到异物很重要，但精确的定位对于避免手术误判导致组织损伤增加、失血增多以及并发症风险增加至关重要。这项初步研究表明，高分辨率超声在软组织异物的检测和精确定位方面都具有适用性，但该检查方法的敏感性和特异性仍有待确定。
