The Cornell product or voltage product is calculated by multiplying the Cornell voltage sum by the duration of the QRS complex.
Parameters:
(1) Cornell voltage sum in mV
(2) duration of the QRS complex in milliseconds
Cornell voltage sum =
= (S in V3 in mV) + (R in aVL in mV)
The Cornell voltage score can be expressed in mV or mm. Norman et al express it in mm.
Cornell product in mm×ms =
= (Cornell voltage sum in mm) * (duration of QRS complex)
According to Havranek et al, left ventricular hypertrophy is indicated by a product greater than 2,436 in males and 2,444 (2436 + 8) in females.
According to Norman et al
Performance
Men
Women
sensitivity 50%
1,976 mm×ms
1,453 mm×ms
specificity 85%
2,091 mm×ms
1,519 mm×ms
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Purpose: To evaluate a patient for left ventricular hypertrophy by calculating the Cornell product.
Specialty: Cardiology
Objective: imaging studies, criteria for diagnosis
ICD-10: I51.7,
