title: Clinical cardiac structural anatomy reconstructed within the cardiac contour using multidetector-row computed tomography: Left ventricular outflow tract.
abstract: The left ventricular outflow tract (LVOT) is a common site of idiopathic ventricular arrhythmia. Many electrocardiographic characteristics for predicting the origin of arrhythmia have been reported, and their prediction rates are clinically acceptable. Because these approaches are inductive, based on QRS-wave morphology during the arrhythmia and endocardial or epicardial pacing, three-dimensional anatomical accuracy in identifying the exact site of the catheter position is essential. However, fluoroscopic recognition and definition of the anatomy around the LVOT can vary among operators, and three-dimensional anatomical recognition within the cardiac contour is difficult because of the morphological complexity of the LVOT. Detailed knowledge about the three-dimensional fluoroscopic cardiac structural anatomy could help to reduce the need for contrast medium injection and radiation exposure, and to perform safe interventions. In this article, we present a series of structural images of the LVOT reconstructed in combination with the cardiac contour using multidetector-row computed tomography. We also discuss the clinical implications of these findings based on the accumulated insights of research pioneers.
authors.affiliation: Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan.
authors.forename: Shumpei
authors.initials: S
authors.lastname: Mori
authors.affiliation: Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan.
authors.forename: Koji
authors.initials: K
authors.lastname: Fukuzawa
authors.affiliation: Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan.
authors.forename: Tomofumi
authors.initials: T
authors.lastname: Takaya
authors.affiliation: Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan.
authors.forename: Sachiko
authors.initials: S
authors.lastname: Takamine
authors.affiliation: Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan.
authors.forename: Tatsuro
authors.initials: T
authors.lastname: Ito
authors.affiliation: Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan.
authors.forename: Sei
authors.initials: S
authors.lastname: Fujiwara
authors.affiliation: Department of Radiology, Kobe University Graduate School of Medicine, Kobe, Japan.
authors.forename: Tatsuya
authors.initials: T
authors.lastname: Nishii
authors.affiliation: Department of Radiology, Kobe University Graduate School of Medicine, Kobe, Japan.
authors.forename: Atsushi K
authors.initials: AK
authors.lastname: Kono
authors.affiliation: Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan.
authors.forename: Akihiro
authors.initials: A
authors.lastname: Yoshida
authors.affiliation: Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan.
authors.forename: Ken-Ichi
authors.initials: K
authors.lastname: Hirata
mesh_terms: D006352:Heart Ventricles / Q000033:anatomy & histology* / Q000000981:diagnostic imaging*; D006801:Humans; D061330:Multidetector Computed Tomography
keywords: aortomitral continuity; clinical cardiac structural anatomy; fluoroscopic anatomy; left ventricular outflow tract; left ventricular summit; membranous septum; multidetector-row computed tomography