30+ Dimensionless Index Calculator. Should i use transesophageal echo (tee) or transthoracic echo (tte) during tavr procedures? These recommendations support the use of tee for tavr.

This calculator provides the calculation of dimensionless index. A dimensionless index of <0.25 is consistent with severe as, with a valvular area of 25% of the expected normal valve area for the patient’s body size. Dimensionless severity index = ratio of lvot velocity/aortic valve velocity (v1/v2) — provides a dimensionless measurement of aortic stenosis which is independent of q — < 0.25.








