Description
Calculate supplied monitor time excluding recorded artifact time.
Cardiology records distinguish event times, signal intervals, recording duration, paper calibration and Doppler angle conventions. A waveform distance requires a stated recording speed, and a signed projected velocity is not a diagnosis. Timing fractions and source labels do not establish cardiac function or appropriate care.
Calculate supplied monitor time excluding recorded artifact time.
When to use this tool
Use Cardiac Monitor Analyzable Time Share when you already have recordedSeconds, artifactSeconds and need to calculate supplied monitor time excluding recorded artifact time.
How to use the tool and how it works
- Enter recordedSeconds, artifactSeconds. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read analyzableSeconds, analyzableFraction, defined. Inspect defined before interpreting the associated values.
Require recordedSeconds>=0 and artifact within recorded; analyzable=recorded-artifact, fraction=analyzable/recorded or zero with defined=false if total=0.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| recordedSeconds | Recorded Seconds | Required. Finite number; minimum 0. |
| artifactSeconds | Artifact Seconds | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| analyzableSeconds | Analyzable Seconds | Required. Finite number. |
| analyzableFraction | (recorded-artifact)/recorded, or zero placeholder for zero recording. | Required. Finite number. |
| defined | True only when recordedSeconds>0. | Required. Boolean. |
{
"input": {
"recordedSeconds": 3600,
"artifactSeconds": 600
},
"output": {
"analyzableSeconds": 3000,
"analyzableFraction": 0.8333333333333334,
"defined": true
}
}Limitations and assumptions
- The zero placeholder is not a measured zero analyzable fraction. No signal is inspected, artifact detected, study adequacy established or clinical result inferred.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Review the original trace, acquisition settings, measurements and complete clinical context. Use the appropriate professional assessment for interpretation; local conversions and flags do not identify rhythms, assess disease or guide treatment.
References
Similar or alternative tools
- Cardiac Cycle Phase Fraction
Normalize a supplied event offset by a positive cardiac-cycle duration.
- ECG Paper Speed Distance Crosswalk
Calculate time from a supplied ECG paper distance and speed.