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Clinical Data Dictionary: CardioSense AI

The CardioSense AI model is trained on the UCI Heart Disease Dataset. It uses 13 clinical features to predict cardiovascular risk.

1. Demographic & Primary Vitals

Feature Description Unit Range (Training)
age Patient Age Years 29 - 77
sex Biological Sex 1: Male, 0: Female 0, 1
trestbps Resting Blood Pressure mmHg 94 - 200
chol Serum Cholesterol mg/dl 126 - 564

2. Chest Pain & Cardiac Response

cp (Chest Pain Type)

Categorical mapping:

  1. Typical Angina: Chest pain related to reduced blood flow to the heart.
  2. Atypical Angina: Chest pain not typical of angina.
  3. Non-anginal Pain: Typically esophageal.
  4. Asymptomatic: No chest pain, but heart disease may still be present.

restecg (Resting Electrocardiographic Results)

Categorical mapping: 0. Normal

  1. ST-T Wave Abnormality: T wave inversions and/or ST elevation or depression.
  2. Left Ventricular Hypertrophy: Possible or definite LVH by Estes' criteria.

thalach (Maximum Heart Rate Achieved)

Maximum heart rate achieved during exercise stress testing. (Range: 71 - 202 bpm)

exang (Exercise Induced Angina)

Whether exercise triggers chest pain (1: Yes, 0: No).

3. Electrocardiogram (ECG) Markers

oldpeak (ST Depression)

ST depression induced by exercise relative to rest. (Range: 0.0 - 6.2)

slope (Slope of Peak Exercise ST Segment)

The slope of the ST segment during peak exercise:

  1. Upsloping
  2. Flat
  3. Downsloping

4. Vascular & Hematologic Markers

ca (Major Vessels)

Number of major vessels (0-3) colored by fluoroscopy.

fbs (Fasting Blood Sugar)

Is fasting blood sugar > 120 mg/dl? (1: True, 0: False)

thal (Thalassemia)

A blood disorder characterized by less hemoglobin and fewer red blood cells than normal: 3. Normal 6. Fixed Defect 7. Reversible Defect

5. Clinical Safety Thresholds

Our Safety Engine monitors these vitals for critical values:

  • Hypertensive Crisis: trestbps > 180 mmHg.
  • Tachycardia Risk: thalach > 190 bpm.
  • Critical ST Depression: oldpeak > 4.0.