Pulmonary acceleration time


Pulmonary acceleration time


Pulmonary acceleration time normal value


[A] > 60 ms
[B] >110 ms
[C] < 60 ms
[D] <110 ms



Pulmonary acceleration time


Right ventricular outflow tract (RVOT) acceleration time

Right ventricular outflow tract (RVOT) acceleration time

  • value > 130 ms is normal
  • while < 100 ms is highly suggestive of pulmonary hypertension

SeverityPVAT
Normal PAP> 130 msec
Borderline PAP100 – 130 msec
Mildly elevated PAP80 – 100 msec
Severely elevated PAP< 80 msec / systolic notch
Pulmonary acceleration time