探讨超声医师继续教育中不同层级医院医师在不同任务中对手机APP端和PC端的需求。

开发手机APP端+PC端相结合的可验证自学学分管理系统。收集2022年6月至2023年6月北京协和医院（三级医院）医师40名（学员组）和8名主任医师（评估师）、北京市第六医院（二级医院）医师9名（学员组）和2名主治及以上医师（评估师），通过可验证自学学分管理系统完成规定学分的学习任务提交、评估审核及问卷填报。两院间通过APP端和PC端提交差异比较采用χ²检验或Fisher确切概率检验；同一医院学习任务提交APP端和PC端选择组间比较采用K-S检验。

基于可验证自学学分管理系统，所有人员完成学分任务提交及评审工作。手机APP端操作总量602次（86%）>PC端操作的101次（14%）；全部不同类型工作（学习任务提交+评估师审核+问卷填报）完成操作方面，两院医师对手机APP端和PC端的操作选择不同，差异具有统计学意义（χ²=36.173，P<0.001）；关于学习任务提交，手机APP端使用率北京市第六医院（100%）高于北京协和医院（53.02%），差异有统计学意义（χ²=65.005，P<0.001）；两院评估师审核认证学分和全部参与研究人员问卷填报，均通过手机APP端完成。完成不同种类学习任务时，北京协和医院医师选择手机APP端+PC端提交，组间差异无统计学意义（P>0.05）；其中发表文章、出版医学著作、病例回顾学习、科研项目及课题等学习任务提交，PC端使用率≥61%；发表医学译文、自学线上课程和学习全国继续医学教育委员会指定的资料等任务提交，APP端使用率≥75%；北京市第六医院医师完成的4个学习任务提交均由手机APP端完成，其中完成参加学术交流、自学与本专业有关的知识2个学习任务，北京协和医院使用APP端+PC端（49/35，3/16）完成，北京市第六医院选用APP端（75/0，7/0）完成，差异有统计学意义（χ²=79.457，15.326，P均<0.001）。

手机APP端+PC端相结合的可验证自学学分管理系统能满足不同层级医院医学教育自学学分认证需求，APP端受众更多。

To explore the demand for mobile application (APP) and personal computer (PC) platforms among physicians at different tiers of hospitals in ultrasound physician continuing education.

A verifiable self-study credit management system, integrating both mobile APP and PC terminals, was developed. Between June 2022 and June 2023, a total of 40 physicians (trainee group) and 9 senior chief physicians (assessor group) from the Department of Ultrasound Medicine of Peking Union Medical College Hospital (PUMCH, a tertiary hospital), as well as 9 physicians (trainee group) and 2 senior attending physicians (assessor group) from the Department of Functional Laboratory of Beijing No. 6 Hospital (a secondary hospital), successfully fulfilled the requirement of submitting at least 15 course credits, undergoing assessment reviews and credit certification, and receiving feedback. This process was facilitated through the utilization of the verifiable self-study credit management system. Differences in platform submissions were analyzed between hospitals using χ² or Fisher's exact tests, and within hospitals using the Kolmogorov-Smirnov test.

Based on the verifiable self-study credit management system, all individuals completed task submissions and evaluations. Mobile APP operations totaled 602 (86%) compared to PC operations at 101 (14%); physicians from the two hospitals showed significant differences in their choice between mobile APP and PC platforms for all task types (χ²=36.173，P<0.001). In terms of task submissions, the mobile APP usage rate at Beijing No. 6 Hospital was 100%, significantly surpassing that of PUMCH at 53.02% (χ²=65.005，P<0.001). Mobile APP was used in all assessor group certifying credits and all participants filling out questionnaires. When completing different types of learning tasks, physicians from PUMCH preferred submitting via both mobile APP and PC platforms, with no significant inter-group differences (P>0.05); for tasks such as publishing articles, medical book publications, case reviews, research projects, and topics, PC usage rates were ≥61%; for tasks like medical translations, online self-study courses, and studying materials designated by continuing medical education, mobile APP usage rates were ≥75%. All four learning tasks completed by physicians from Beijing No. 6 Hospital were submitted via the mobile APP. For the same four tasks involving academic exchanges and self-study in their respective fields, physicians from PUMCH used both APP and PC platforms, while physicians from Beijing No. 6 Hospital exclusively utilized the mobile APP, showing statistical significance (χ²=79.457，15.326; P<0.001 for both).

The integration of a mobile phone APP terminal and a PC terminal in a verifiable self-study credit management system effectively caters to the requirements of medical education self-study credit authentication in hospitals of varying levels. Furthermore, the APP terminal has wider use.