title: Echocardiography.
abstract: Echocardiography occupies a unique place as an investigative tool in cardiology. This introduction to the technique reviews the basic principles and outlines the diagnosis of common cardiac lesions. Being entirely noninvasive, echocardiography can be repeated to ascertain the severity and observe the progression of cardiac lesions.
authors.affiliation: a Pennsylvania Hospital Philadelphia.
authors.forename: Ramanuja Das
authors.initials: RD
authors.lastname: Gupta
authors.affiliation: a Pennsylvania Hospital Philadelphia.
authors.forename: Sanat K
authors.initials: SK
authors.lastname: Mandal
authors.affiliation: a Pennsylvania Hospital Philadelphia.
authors.forename: Kenneth L
authors.initials: KL
authors.lastname: Kershbaum
authors.affiliation: a Pennsylvania Hospital Philadelphia.
authors.forename: Peter F
authors.initials: PF
authors.lastname: Binnion