探讨品管圈在颈动脉超声检查图像和报告质量控制中的应用效果。

宁波市中西医结合医院超声科于2024年10月至2025年3月开展了以“提高颈动脉超声检查图像和报告合格率”为主题的品管圈活动。活动开始前（2024年3月至8月）分层随机抽取90例完成颈动脉超声检查的阳性病例。品管圈小组成员根据颈动脉超声相关规范化指标对图像及报告质量分别进行评分，并统计合格率。对抽查发现的现状问题通过头脑风暴绘制柏拉图、查找真因、设定目标、拟定对策，最后制定标准化检查操作流程。品管圈活动实施后（2025年1月至3月）分层随机抽取90例完成颈动脉超声检查的阳性病例进行效果确认，统计超声图像合格率和报告合格率，并采用χ²检验比较品管圈活动实施前后的差异。最后抽取品管圈活动结束后半年内（2025年8月至9月）146例颈动脉超声检查阳性病例，分析活动效果是否存在持续性改进。

品管圈活动实施后，颈动脉超声检查图像质量明显提高，合格率由实施前的46.7%（42/90）提高到实施后的82.2%（74/90）；颈动脉超声检查报告的合格率也由实施前的63.3%（57/90）提高到实施后的87.8%（79/90），差异均具有统计学意义（χ²=24.82，P＜0.001；χ²=14.59，P＜0.001）。活动结束后半年内，颈动脉超声图像和报告质量呈持续性改进，合格率分别为86.3%（126/146）、84.2%（123/146）。

品管圈活动有效提高了颈动脉超声检查图像及报告合格率，并能维持良好效果。

To evaluate the effectiveness of quality control circle (QCC) activities in improving the quality of carotid ultrasound images and reports.

From October 2024 to March 2025, the Ultrasound Department of Ningbo Integrated Traditional Chinese and Western Medicine Hospital conducted a QCC activity themed "Improving the Qualified Rate of Carotid Ultrasound Images and Reports". Before the intervention (March to August 2024), 90 carotid ultrasound examinations were randomly selected. QCC members scored image and report quality using relevant standardized indicators and calculated the qualified rate. Problems identified during the sampling were addressed through brainstorming, Pareto analysis, root cause analysis, goal setting, and targeted countermeasures, ultimately leading to the development of a standardized protocol. After the QCC activity (January to March 2025), another 90 examinations were randomly selected for effect confirmation. Qualified rates for images and reports were recalculated, and pre- and post-intervention differences were compared using the chi-square test. To assess sustainability, an additional 146 carotid ultrasound examinations were sampled within six months after the end of the QCC activity (August to September 2025).

After the QCC intervention, the qualified rate for carotid ultrasound images increased significantly from 46.7% (42/90) to 82.2% (74/90), and the qualified rate for reports rose from 63.3% (57/90) to 87.8% (79/90). Both differences were statistically significant (χ²=24.82, P＜0.001; χ²=14.59, P＜0.001). Six months after the end of the activity, the improvement was sustained, with qualified rates of 86.3% (126/146) for images and 84.2% (123/146) for reports, respectively.

QCC activities effectively improved the qualified rates of carotid ultrasound images and reports, with sustained benefits observed at six-month follow-up.