Interpretations2 class

Provides algorithms and data structures for analyzing fetal heart rate (FHR) test data.

The Interpretations2 class processes FHR data to extract clinical metrics such as accelerations, decelerations, baseline heart rate, short- and long-term variability, and episodes of high/low variation. It supports initialization from raw BPM data, test models, or empty state, and exposes methods for cleaning, smoothing, and segmenting the data for further interpretation.

Example usage:

final interp = Interpretations2.withData(bpmList, gestationalAge);
int accels = interp.getnAccelerations();
int decels = interp.getnDecelerations();
double stv = interp.getShortTermVariationBpm();

Constructors

Interpretations2()
Interpretations2.fromMap(Test test)
Interpretations2.withData(List<int> bpm, int gAge)

Properties

accelerationsList ↔ List<MarkerIndices>?
getter/setter pair
basalHeartRate ↔ int
getter/setter pair
baselineBpmList ↔ List<int>?
getter/setter pair
baselineEpoch ↔ List<int?>
getter/setter pair
baselineEpochBpm ↔ List<int?>
getter/setter pair
beatsInMilliseconds ↔ List<int?>
getter/setter pair
beatsInMillisecondsSmooth ↔ List<int?>
getter/setter pair
bpmCorrectedIndices ↔ List<int>
getter/setter pair
bpmList ↔ List<int>?
getter/setter pair
bpmListSmooth ↔ List<int>?
getter/setter pair
cleanBaselineEpoch ↔ List<int?>
getter/setter pair
cleanBaselineEpochBpm ↔ List<int?>
getter/setter pair
cleanMillisecondsEpoch ↔ List<int?>?
getter/setter pair
cleanMillisecondsEpochBpm ↔ List<int?>
getter/setter pair
correctionCount ↔ int?
getter/setter pair
decelerationsList ↔ List<MarkerIndices>?
getter/setter pair
fisherScore ↔ int
getter/setter pair
fisherScore2 ↔ int
getter/setter pair
gestAge ↔ int
getter/setter pair
hashCode → int
The hash code for this object.
no setterinherited
isDeceleration ↔ bool
getter/setter pair
isSkipped ↔ bool
getter/setter pair
longTermVariation ↔ int
getter/setter pair
millisecondsEpoch ↔ List<int?>
getter/setter pair
millisecondsEpochBpm ↔ List<int?>
getter/setter pair
millisecondsEpochBpmSmooth ↔ List<int>?
getter/setter pair
millisecondsEpochSmooth ↔ List<int?>
getter/setter pair
nAccelerations ↔ int?
getter/setter pair
nDecelerations ↔ int?
getter/setter pair
noiseList ↔ List<MarkerIndices>?
getter/setter pair
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
shortTermVariationBpm ↔ double
getter/setter pair
shortTermVariationMilli ↔ int
getter/setter pair

Methods

calculateAccelerations() → int
An acceleration is defined as an increase in FHR above the baseline that lasts for longer than 15 seconds and has a maximum excursion above the baseline of greater than 10 beats/min
calculateAvgHeartRate(List<int?> list) → int
calculateBasalHeartRate(List<int?> list) → int
calculateBaseLine(List<int?> millisecondsEpoch) → List<int?>
calculateDecelerations() → int
second criteria *
calculateEpisodesOfLowAndHighVariation() → void
calculateEpochBpm() → List<int?>
calculateLowVariationAvg(List<int?> list, int avgHR) → int
calculateShortTermVariability() → void
cleanBpmList() → void
convertBaselineArrayToBpmEpoch(List<int?> baselineArray) → List<int?>
convertBaselineArrayToBpmList(List<int?> _baselineArray) → List<int>
convertBpmToMilli(List<int> list) → List<int?>
convertMilliToEpoch(List<int?> millisecondBeats) → List<int?>
getAccelerationsList() → List<MarkerIndices>?
getBasalHeartRate() → int
getBasalHeartRateStr() → String
getBaselineBpmList() → List<int>?
getBaselineWindowAverage(List<int> list, int index, int window) → int
getBaselineWindowSmoothAverage(List<int?> list, int index, int window) → int?
getDecelerationsList() → List<MarkerIndices>?
getLongTermVariation() → int
getLongTermVariationStr() → String
getnAccelerations() → int?
getnAccelerationsStr() → String
getnDecelerations() → int?
getnDecelerationsStr() → String
getNextNonZeroBpm(int index, List<int>? list) → int
getNextValidBpm(int index, List<int> list) → int
getNoiseAreaList() → List<MarkerIndices>?
getNoiseAreas(List<int> list) → List<int>
getShortTermVariationBpm() → double
getShortTermVariationBpmStr() → String
getShortTermVariationMilli() → int
getShortTermVariationMilliStr() → String
getWindowAvreage(List<int> list, int index, int window) → int
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
removeDecelerationMinutes() → void
removeNoiseMinutes() → void
removeTrailingZeros(List<int> list) → void
smoothBpm() → void
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited

Static Properties

highFHREpisodePercentiles → List
final

Constants

FACTOR → const int
NO_OF_SAMPLES_PER_MINUTE → const int
SIXTY_THOUSAND_MS → const int