Objective:To construct an intelligent APP-assisted process assessment mode for standardized residency training and explore its application effect.Methods:Based on the "XUEYIKU" APP platform developed in Peking University Third Hospital, we built a standardized process of process assessment for standardized residency training assisted by intelligent APP and combining both online and offline components. We analyzed the frequency of APP use, satisfaction with the APP, the problems solved by the APP, and the aspects that need to be improved. SPSS 26.0 was used for t-test and Chi-square test. Results:The satisfaction score of teachers with the APP was (7.66±1.86) points. The satisfaction score of professional base teaching directors/process assessment coordinators was higher than that of clinical teachers [(8.28±1.30) vs. (7.42±1.99), P=0.013]. Most residents were satisfied with the APP (67.44%, 29/43), regarded its role in supporting the entire assessment process as important (55.81%, 24/43), and reviewed teacher feedback (65.12%, 28/43). Some teachers indicated that the APP solved problems such as paperless exam scoring (59.00%, 59/100), standardized exam processes (43.00%, 43/100), score statistics (42.00%, 42/100), and score reporting (42.00%, 42/100). The residents believed that the APP resolved issues such as exam notification (44.19%, 19/43), scheduling (41.86%, 18/43), and result feedback (41.86%, 18/43). Both teachers and residents mentioned the need for further strengthening the stability of the APP system and simplifying operational steps. Conclusions:With APP as a link, through the instant transmission and feedback of data, the intelligent APP-assisted process assessment mode drives the reflection and summarization of professional bases, clinical teachers, and residents, and promotes the post competence of residents.

Objective:To construct an intelligent APP-assisted process assessment mode for standardized residency training and explore its application effect.Methods:Based on the "XUEYIKU" APP platform developed in Peking University Third Hospital, we built a standardized process of process assessment for standardized residency training assisted by intelligent APP and combining both online and offline components. We analyzed the frequency of APP use, satisfaction with the APP, the problems solved by the APP, and the aspects that need to be improved. SPSS 26.0 was used for t-test and Chi-square test. Results:The satisfaction score of teachers with the APP was (7.66±1.86) points. The satisfaction score of professional base teaching directors/process assessment coordinators was higher than that of clinical teachers [(8.28±1.30) vs. (7.42±1.99), P=0.013]. Most residents were satisfied with the APP (67.44%, 29/43), regarded its role in supporting the entire assessment process as important (55.81%, 24/43), and reviewed teacher feedback (65.12%, 28/43). Some teachers indicated that the APP solved problems such as paperless exam scoring (59.00%, 59/100), standardized exam processes (43.00%, 43/100), score statistics (42.00%, 42/100), and score reporting (42.00%, 42/100). The residents believed that the APP resolved issues such as exam notification (44.19%, 19/43), scheduling (41.86%, 18/43), and result feedback (41.86%, 18/43). Both teachers and residents mentioned the need for further strengthening the stability of the APP system and simplifying operational steps. Conclusions:With APP as a link, through the instant transmission and feedback of data, the intelligent APP-assisted process assessment mode drives the reflection and summarization of professional bases, clinical teachers, and residents, and promotes the post competence of residents.

OBJECTIVETo access left ventricular global deformation abnormalities during low-dose dobutamine stress test (DSE) by three-dimensional speckle-tracking echocardiography(3D-STE)in patients with non-ST-elevation acute coronary syndrome (NSTE-ACS), and explore the diagnostic value of 3D-STE combined with DES for NSTE-ACS.

METHODSForty-nine patients with suspected NSTE-ACS underwent DSE and coronary angiography with an initial dobutamine dose of 5 µg·kg(-1)·min(-1), which was doubled at 3-min intervals to the peak dose of 20 µg·kg(-1)·min(-1). The global longitudinal strain (GLS), global circumferential strain (GCS), territory longitudinal strain (TLS), and territory circumferential strain (TCS) of the left ventricular subendocardial myocardium were measured with 3D-STE at rest and at the peak-dose stage. Conventional echocardiography and 3D-STE parameters and their changes during DSE were evaluated, and their diagnostic values were analyzed according to the receiver-operating characteristic (ROC) curves.

RESULTSAll the patients completed DSE uneventfully and 3D-STE showed a good reproducibility of the results. Compared with patients with non-NSTE-ACS, NSTE-ACS patients showed obviously reduced resting left ventricular global deformation function especially in terms of circumferential deformation (P<0.05); the ROC curves for the parameters were similar between the two groups (P>0.05). During DSE, the global deformation differences between the two groups further increased (P<0.01), and the diagnostic values of the peak-dose stage parameters were significantly greater than those of the resting parameters. ROC curves analysis showed that TLS and TCS at peak-dose stage had the highest diagnostic value for NSTE-ACS.

CONCLUSION3D-STE combined with low-dose DSE is a safe and effective noninvasive technique for accessing and identifying NSTE-ACS, and DSE can significantly enhance the diagnostic value of 3D-STE.

Acute Coronary Syndrome ; diagnosis ; Coronary Angiography ; Echocardiography, Stress ; Echocardiography, Three-Dimensional ; Heart Ventricles ; pathology ; Humans ; Myocardium ; pathology ; ROC Curve ; Reproducibility of Results

s:Objective To access left ventricular global deformation abnormalities during low-dose dobutamine stress test (DSE) by three-dimensional speckle-tracking echocardiography (3D-STE)in patients with non-ST-elevation acute coronary syndrome (NSTE-ACS), and explore the diagnostic value of 3D-STE combined with DES for NSTE-ACS. Methods Forty-nine patients with suspected NSTE-ACS underwent DSE and coronary angiography with an initial dobutamine dose of 5μg·kg-1·min-1, which was doubled at 3-min intervals to the peak dose of 20 μg ·kg-1 ·min-1. The global longitudinal strain (GLS), global circumferential strain (GCS), territory longitudinal strain (TLS), and territory circumferential strain (TCS) of the left ventricular subendocardial myocardium were measured with 3D-STE at rest and at the peak-dose stage. Conventional echocardiography and 3D-STE parameters and their changes during DSE were evaluated, and their diagnostic values were analyzed according to the receiver-operating characteristic (ROC) curves. Results All the patients completed DSE uneventfully and 3D-STE showed a good reproducibility of the results. Compared with patients with non-NSTE-ACS, NSTE-ACS patients showed obviously reduced resting left ventricular global deformation function especially in terms of circumferential deformation (P<0.05);the ROC curves for the parameters were similar between the two groups (P>0.05). During DSE, the global deformation differences between the two groups further increased (P<0.01), and the diagnostic values of the peak-dose stage parameters were significantly greater than those of the resting parameters. ROC curves analysis showed that TLS and TCS at peak-dose stage had the highest diagnostic value for NSTE-ACS. Conclusion 3D-STE combined with low-dose DSE is a safe and effective noninvasive technique for accessing and identifying NSTE-ACS, and DSE can significantly enhance the diagnostic value of 3D-STE.

s:Objective To access left ventricular global deformation abnormalities during low-dose dobutamine stress test (DSE) by three-dimensional speckle-tracking echocardiography (3D-STE)in patients with non-ST-elevation acute coronary syndrome (NSTE-ACS), and explore the diagnostic value of 3D-STE combined with DES for NSTE-ACS. Methods Forty-nine patients with suspected NSTE-ACS underwent DSE and coronary angiography with an initial dobutamine dose of 5μg·kg-1·min-1, which was doubled at 3-min intervals to the peak dose of 20 μg ·kg-1 ·min-1. The global longitudinal strain (GLS), global circumferential strain (GCS), territory longitudinal strain (TLS), and territory circumferential strain (TCS) of the left ventricular subendocardial myocardium were measured with 3D-STE at rest and at the peak-dose stage. Conventional echocardiography and 3D-STE parameters and their changes during DSE were evaluated, and their diagnostic values were analyzed according to the receiver-operating characteristic (ROC) curves. Results All the patients completed DSE uneventfully and 3D-STE showed a good reproducibility of the results. Compared with patients with non-NSTE-ACS, NSTE-ACS patients showed obviously reduced resting left ventricular global deformation function especially in terms of circumferential deformation (P<0.05);the ROC curves for the parameters were similar between the two groups (P>0.05). During DSE, the global deformation differences between the two groups further increased (P<0.01), and the diagnostic values of the peak-dose stage parameters were significantly greater than those of the resting parameters. ROC curves analysis showed that TLS and TCS at peak-dose stage had the highest diagnostic value for NSTE-ACS. Conclusion 3D-STE combined with low-dose DSE is a safe and effective noninvasive technique for accessing and identifying NSTE-ACS, and DSE can significantly enhance the diagnostic value of 3D-STE.