title: Imaging technique and clinical utility for electrophysiologic procedures of lower frequency (9 MHz) intracardiac echocardiography.
abstract: Intracardiac echocardiography using a new 9-MHz ultrasound catheter was performed in 30 patients undergoing percutaneous catheter mapping and radiofrequency ablation of a tachyarrhythmia, because the imaging capabilities with this intracardiac echocardiographic catheter permit detailed identification of normal and abnormal cardiac anatomy with improved imaging depth. Intracardiac echocardiography is of significant clinical utility during ablation for guiding interatrial septal puncture, assessing placement and contact of mapping/ablation catheters, monitoring ablation lesion morphologic changes, and diagnosing procedure-related complications.
authors.affiliation: Department of Medicine, Allegheny University Hospitals, Philadelphia, Pennsylvania 19102-1192, USA.
authors.forename: J F
authors.initials: JF
authors.lastname: Ren
authors.forename: D
authors.initials: D
authors.lastname: Schwartzman
authors.forename: D
authors.initials: D
authors.lastname: Callans
authors.forename: F E
authors.initials: FE
authors.lastname: Marchlinski
authors.forename: C D
authors.initials: CD
authors.lastname: Gottlieb
authors.forename: F A
authors.initials: FA
authors.lastname: Chaudhry
mesh_terms: D000328:Adult; D017115:Catheter Ablation / Q000379:methods; D004452:Echocardiography / Q000295:instrumentation / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015641:Radiography, Interventional / Q000379:methods; D013610:Tachycardia / Q000000981:diagnostic imaging* / Q000503:physiopathology* / Q000601:surgery; D016896:Treatment Outcome