熟悉环状软骨侧边声像，可助超声诊断医师避免误诊。
Familiarity with the appearance of this artefact will help sonographers to avoid diagnostic errors.
方法分析15年来随着超声医师对盲肠和阑尾解剖结构及声像图特征认识的深化、扫查技术的改进，使急性阑尾炎的诊断水平不断提高。
Methods Since the improvement of imaging quality, anatomical knowledge of appendix and method of examination in recent 15 years the diagnostic accuracy was improved markedly.
方法分析15年来随着超声医师对盲肠和阑尾解剖结构及声像图特征认识的深化、扫查技术的改进，使急性阑尾炎的诊断水平不断提高。
Methods Since the improvement of imaging quality, anatomical knowledge of appendix and method of examination in recent 15 years the diagnostic accuracy was improved markedly.
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