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USER MANUAL DO-LBL-06035(L)
| MyoVista® Wavelet ECG (
wav
ECG™) 12-Lead Cardiac Testing Device
MyoVista Wavelet Analysis, Algorithms and Statements
The MyoVista Wavelet Analysis, Algorithms and Statements provide the results of the Wavelet Analysis (with
inputs from the MyoVista Energy Classification and MyoVista Ventricular Indices, as well as other conventional
measures such as T-Axis, sex, and age) and provides statements that can be used to assist in determining the
relative-risk of a patient having a relaxation abnormalities associated with LV diastolic dysfunction that may
require further clinical testing, evaluation and/or treatment . These statements were developed using clinical
study data .
The MyoVista Wavelet Analysis Statements section of the reports includes the following types of informational
statements (see Figure E-6):
• Repolarization Measures Algorithm Statement (if applicable – see “
A
” on Figure E-6)
• Ischemic or Structural risk assessment statement (if applicable – see “
B
” on Figure E-6)
• Ventricular Indices Statements (if applicable – see “
C
” on Figure E-6)
Figure E-6
Repolarization Measures Algorithm Statement
The Repolarization Measures Algorithm Statement is optimized to correlate to relaxation abnormalities
associated with LV diastolic dysfunction and provide the results of applying a series of criteria using
clinical study data . This criteria includes
wav
ECG Measures such as the MyoVista Energy Classification and
the MyoVista Ventricular Indices, and also incorporates conventional ECG measures such as T-Axis and
demographic information such as age and sex .
The Repolarization Measures Algorithm Statement has three categorizations: “Normal”, “Borderline” and
“Abnormal” .
Based on patients being categorized as borderline or abnormal for having left ventricle relaxation
abnormalities associated with diastolic dysfunction .
The MyoVista Summary Statement and Indicators have a sensitivity of 74 .3% and a specificity of 72 .9% for the
detection of myocardial relaxation abnormalities associated with Left Ventricular Diastolic Dysfunction (LVDD)
based on the overall statistical performance of the Repolarization Measures Algorithm .
NOTE: Patients marked as “Borderline: Inconclusive” were omitted from these calculations.
Appendix E: MyoVista
wav
ECG Information, Measures Development and Statistical Performance
C
B
A