Instructions for Use
Resting & Stress ECG with seca ct330/331 and seca diagnostic 5.9
Duke Treadmill Score
In order to display this value in seca diagnostic, some settings are
required, see 3.2.5 Extended ECG settings, p. 39.
Duke score = Test duration
- 5 * ST segment deviation - 4 * TAI
Explanations of the values in the equation:
→ Test duration: the duration of the stress test in minutes
→ ST segment deviation: maximum net ST segment deviation in
millimetres. ST deviation refers to the maximum ST change
(elevation or depression) in each lead except the aVR lead
→ TAI is the Treadmill Angina Index:
→ 0: no angina pectoris/pain
→ 1: Typical angina pectoris (pain that is limited to the period of
exertion)
→ 2: Training canceled due to angina pectoris
10 to +4
-10
Mark, D. B., Shaw, L., Harrell, F. E., Hlatky, M. A., Lee, K. L., Bengtson, J. R., McCants, C.
B., Califf, R. M., & Pryor, D. B. (1991). Prognostic value of a treadmill exercise score in
outpatients with suspected coronary artery disease. The New England Journal of
Medicine, 325(12), 849–853. https://doi.org/10.1056/NEJM199109193251204
Gibbons, R. J., Balady, G. J., Beasley, J. W., Bricker, J. T., Duvernoy, W. F., Froelicher, V.
F., Mark, D. B., Marwick, T. H., McCallister, B. D., Thompson, P. D., Winters, W. L.,
Yanowitz, F. G., Ritchie, J. L., Gibbons, R. J., Cheitlin, M. D., Eagle, K. A., Gardner, T. J.,
Garson, A., Lewis, R. P., … Ryan, T. J. (1997). ACC/AHA Guidelines for Exercise Testing.
A report of the American College of Cardiology/American Heart Association Task Force on
Practice Guidelines (Committee on Exercise Testing). Journal of the American College of
Cardiology, 30(1), 260–311. https://doi.org/10.1016/s0735-1097(97)00150-2
Beat identification
Beat detection in seca diagnostic is performed using the VPB detection
algorithm by Kraft et al (2023): Kraft, D., Bieber, G., Jokisch, P., &
Rumm, P. (2023). End-to-End Premature Ventricular Contraction
Detection Using Deep Neural Networks. Sensors, 23(20), Article 20.
https://doi.org/10.3390/s23208573.
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