JTcLC - Linear Correction Formula

**Semantic type:** Quantitative Concept

**Definition:** A formula which takes into account the physiologic shortening of the JT interval which occurs as the heart rate increases, permitting comparison of the JT interval across a range of rates. The linear correction formula uses population-based data obtained and validated using a large cohort of subjects. Using this method, the corrected JT interval is independent of the ventricular rate.