title: Bed tilt as an effort-independent maneuver to improve patent foramen ovale assessment by transthoracic contrast echocardiography.
authors: Cardiac Ultrasound Laboratory, Cardiology Division, Department of Medicine, Massachusetts General Hospital, Boston 02114, USA.
authors: A J
authors: AJ
authors: Kerr
authors: K K
authors: KK
authors: Chia
authors: T
authors: T
authors: Buck
authors: S J
authors: SJ
authors: Fry
authors: P M
authors: PM
authors: Myron
authors: L G
authors: LG
authors: Rudski
authors: C M
authors: CM
authors: Chow
authors: R A
authors: RA
authors: Mucci
authors: M H
authors: MH
authors: Picard
authors: R A
authors: RA
authors: Levine
mesh_terms: D001513:Beds; D003287:Contrast Media; D004452:Echocardiography / Q000379:methods*; D006344:Heart Septal Defects, Atrial / Q000000981:diagnostic imaging*; D006801:Humans; D016683:Supine Position; D014636:Valsalva Maneuver
chemical_list: D003287:Contrast Media