Marshburn Thomas H, Legome Eric, Sargsyan Ashot, Li Shannon Melton James, Noble Vicki A, Dulchavsky Scott A, Sims Carrie, Robinson David
Medical Operations, Office of Space Medicine, NASA/Johnson Space Center, Houston, Texas 77058, USA.
J Trauma. 2004 Aug;57(2):329-32. doi: 10.1097/01.ta.0000088005.35520.cb.
New portable ultrasound (US) systems are capable of detecting fractures in the remote setting. However, the accuracy of ultrasound by physicians with minimal ultrasound training is unknown.
After one hour of standardized training, physicians with minimal US experience clinically evaluated patients presenting with pain and trauma to the upper arm or leg. The investigators then performed a long-bone US evaluation, recording their impression of fracture presence or absence. Results of the examination were compared with routine plain or computer aided radiography (CT).
58 patients were examined. The sensitivity and specificity of US were 92.9% and 83.3%, and of the physical examination were 78.6% and 90.0%, respectively. US provided improved sensitivity with less specificity compared with physical examination in the detection of fractures in long bones.
Ultrasound scans by minimally trained clinicians may be used to rule out a long-bone fracture in patients with a medium to low probability of fracture.
新型便携式超声（US）系统能够在偏远地区检测骨折。然而，接受过极少超声培训的医生使用超声检查的准确性尚不清楚。
经过一小时的标准化培训后，经验极少的超声医生对出现上臂或腿部疼痛及创伤的患者进行临床评估。然后，研究人员进行长骨超声评估，记录他们对骨折是否存在的判断。将检查结果与常规X线平片或计算机辅助X线摄影（CT）进行比较。
共检查了58例患者。超声检查的敏感性和特异性分别为92.9%和83.3%，体格检查的敏感性和特异性分别为78.6%和90.0%。在检测长骨骨折方面，与体格检查相比，超声检查具有更高的敏感性和较低的特异性。
接受过极少培训的临床医生进行的超声扫描可用于排除骨折可能性为中低水平患者的长骨骨折。
