RT Book, Section A1 Shindler, Daniel M. A1 Shindler, Olga I. A1 Wright, Alicia SR Print(0) ID 1175627065 T1 Pulmonic Valve T2 Practical Echocardiography for Cardiac Sonographers YR 2020 FD 2020 PB McGraw Hill PP New York, NY SN 9781260457797 LK accesscardiology.mhmedical.com/content.aspx?aid=1175627065 RD 2024/03/29 AB Mild degrees of pulmonic valve regurgitation are common in normal individuals. This should be considered a normal variant.The regurgitant color flow jets may be eccentric.Scanning tip: Timing the jet with pulsed-wave Doppler, or with color M-mode Doppler, will help distinguish it from coronary artery flow and from a continuous communication between the aorta and the pulmonary artery.Note: Severe pulmonic valve regurgitation with normal pulmonary pressures may be of short duration and may have a low velocity.The guidelines integrate magnetic resonance imaging with echocardiography for quantitation of PR. This is particularly important in patients with congenital heart disease.Significant pulmonic valve regurgitation may be:- An indicator of pulmonary diastolic hypertension.- A consequence of pulmonary valve endocarditis.- A sign of a bicuspid, quadricuspid, absent, or dysplastic pulmonic valve.- Associated with a dilated pulmonary artery.- Important in prior tetralogy repair.- An indicator of a failing pulmonic homograft in a Ross procedure.- Present in carcinoid pulmonic valve disease.Findings in severe pulmonary valve regurgitation:- Jet width to RVOT ratio ≥70%.- Pressure half time <100 ms.- Early jet termination.- Premature pulmonic valve opening.- Pulmonary artery diastolic flow reversal.