[Noninvasive assessment of the degree of cardiovascular stenosis by velocimetry: accuracy for pressure gradient prediction].
D000293:Adolescent; D000328:Adult; D001783:Blood Flow Velocity; D001794:Blood Pressure; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D011651:Pulmonary Artery / Q000503:physiopathology; D011666:Pulmonary Valve Stenosis / Q000503:physiopathology*; D013771:Tetralogy of Fallot / Q000503:physiopathology*