Question

PPM will typically have a DVI >0.25, whereas in pathological obstruction it will be <0.25

Answer 1

PPM refers to Prosthetic Valve Peak Velocity, and DVI is the Doppler velocity index used in echocardiography to assess prosthetic heart valve function, with values >0.25 indicating normal function and <0.25 suggesting obstruction.

Step-by-step explanation:

The term 'PPM' in the context of the question likely refers to Prosthetic Valve Peak Velocity, a measurement used in echocardiography to assess the function of a prosthetic heart valve. 'DVI' stands for Doppler velocity index, which is a ratio used to evaluate the severity of aortic stenosis or other valve obstructions. In echocardiography, a DVI greater than 0.25 typically suggests a normally functioning prosthetic valve, while a DVI less than 0.25 might indicate a pathological obstruction. These values are important for the diagnosis and management of valve-related heart diseases.