Grechenig W, Clement H G, Fellinger M, Seggl W
Department of Traumatology, University of Graz, Austria.
Arch Orthop Trauma Surg. 1998;117(6-7):368-71. doi: 10.1007/s004020050268.
Sonographic studies were performed on cadaveric bones placed in a water bath, using 7.5-MHz linear-array transducers and 3.5-MHz sector transducers. Depending on its size, the defect was revealed as an interruption of the cortical reflection of echo or a dorsal band of echoes confined to the region of the fracture. It was interesting to note that fractures and bony defects are not visualized when the transducer is placed parallel to the fracture line or the zone of bony impaction. A further remarkable aspect was the numerous artefacts adjacent to each other at several fracture margins. It may be concluded that in an experimental setting and under standardized conditions, high-resolution transducers permit the examiner to detect cortical discontinuities of 1 mm or more.
使用7.5兆赫线性阵列换能器和3.5兆赫扇形换能器，对置于水浴中的尸体骨骼进行了超声研究。根据其大小，缺损表现为回声皮质反射中断或局限于骨折区域的背侧回声带。值得注意的是，当换能器与骨折线或骨撞击区域平行放置时，骨折和骨缺损无法显示。另一个显著方面是在几个骨折边缘彼此相邻的大量伪像。可以得出结论，在实验环境和标准化条件下，高分辨率换能器可使检查者检测到1毫米或更大的皮质不连续。
