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to get an PR Severity PHT.
1: Obtain a PWD or a CWD of the pulmonary valve.
The flow profile of the aortic valve, in pulmonic
regurgitation will show a diastolic flow profile that
decays over the diastolic time period. Utilizing
the caliper function, mark the Vmax and Vmin to calculate
the slope and pressure half time of the diastolic
flow profile. A steep slope and a short PHT
will be indicative of severe pulmonic regurgitation.
Note that mild or moderate pulmonic regurgitation
are NOT holodiastolic, whereas severe pulmonic regurgitation
IS holodiastolic. In aortic regurgitation, mild
and moderate regurgitation IS holodiastolic, whereas,
severe aortic regurgitation IS NOT holodiastolic.
The differences in the two valve disorders occurs
because of the pressure differential between the respective
ventricular cavities and the great vessels.
This activity has been planned and implemented in accordance with the accreditation requirements and policies of the Accreditation Council for Continuing Medical Education through the joint providership of University of Nebraska Medical Center, Center for Continuing Education and JLS Interactive, LLC.
The University of Nebraska Medical Center, Center for Continuing Education is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians.
This activity is approved by the American Society of Radiologic Technologists (ASRT) as sonography-related continuing education (CE). Credit(s) issued for successful completion of ASRT-approved CE activities are accepted by the American Registry of Diagnostic Medical Sonography, American Registry of Radiological Technologists, Cardiovascular Credentialing International and Canadian Association of Registered Diagnostic Ultrasound Professionals. Contact the applicable registry for additional information / restrictions on their acceptance of ASRT CE credit.