TY - CHAP M1 - Book, Section TI - Pulmonic Valve A1 - Shindler, Daniel M. A1 - Shindler, Olga I. A1 - Wright, Alicia PY - 2020 T2 - Practical Echocardiography for Cardiac Sonographers 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. SN - PB - McGraw Hill CY - New York, NY Y2 - 2024/03/28 UR - accesscardiology.mhmedical.com/content.aspx?aid=1175627065 ER -