Description
Return baseline-corrected beat samples, rectangular area and mean.
Cardiac measurement formulas depend on geometry, units, calibration and reference origins. A Doppler projection correction, echo disc-volume contribution or waveform integral evaluates supplied quantities without validating image acquisition, signal quality or physiological interpretation.
Return baseline-corrected beat samples, rectangular area and mean.
When to use this tool
Use Cardiology Waveform One Beat Baseline when checking one supplied cardiac measurement, geometry or calibration term.
How to use the tool and how it works
- Enter samples, baseline, sampleSeconds. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read baselineCorrected, signedArea, meanCorrected. Use the output convention below.
Return baseline-corrected beat samples, rectangular area and mean. Require nonempty samples and sampleSeconds >= 0; subtract baseline per entry, signedArea = sum(corrected)*sampleSeconds, meanCorrected divides by sample count.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| samples | Samples | Required. Array of finite number; maximum items 256. |
| baseline | Baseline | Required. Finite number. |
| sampleSeconds | Nonnegative rectangular-sum weight per sample; zero is allowed. | Required. Finite number; minimum 0. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| baselineCorrected | Baseline Corrected | Required. Array of finite number; maximum items 256. |
| signedArea | Signed Area | Required. Finite number. |
| meanCorrected | Mean Corrected | Required. Finite number. |
{
"input": {
"samples": [
2,
4,
6
],
"baseline": 2,
"sampleSeconds": 0.1
},
"output": {
"baselineCorrected": [
0,
2,
4
],
"signedArea": 0.6000000000000001,
"meanCorrected": 2
}
}Limitations and assumptions
- Area uses sample amplitude*time units; this is a supplied rectangular-sum convention, not waveform segmentation or a clinical feature diagnosis.
- 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
Use validated acquisition and calibration, a complete appropriate measurement method and qualified clinical interpretation; assess measurement uncertainty and model assumptions separately.
References
Similar or alternative tools
- Cardiology Phantom Flow Volume Factor
Return phantom flow after subtracting collection residual.
- Cardiac Waveform Pressure Time One Panel
Return a trapezoidal pressure-time panel with baseline adjustment.