title: [Development of estimated time of arrival method and usefulness in pulmonary artery/vein separation 3D-CT].
abstract: We have developed an estimated time of arrival (ETA) method as a new single-phase scan for pulmonary artery/vein separation. This method enables differentiation of CT values between arteries and veins by means of two-step consecutive injection of contrast medium based on the pulmonary circulation time. This paper presents an overview of the ETA method and scan technique. Since the ETA method is a single-phase scan, it uses a low radiation dose compared with the conventional multi-phase scan. Moreover, this method eliminates gaps due to breath holding. The ETA method can detect irregularities and obtain high-quality pulmonary artery/vein separation 3D-CT images.
authors.affiliation: Department of Radiology, Mie University Hospital.
authors.forename: Katsutoshi
authors.initials: K
authors.lastname: Nakamori
authors.forename: Naoki
authors.initials: N
authors.lastname: Nagasawa
authors.forename: Akio
authors.initials: A
authors.lastname: Yamazaki
authors.forename: Naoya
authors.initials: N
authors.lastname: Kubooka
authors.forename: Yoshikazu
authors.initials: Y
authors.lastname: Yamao
authors.forename: Syuichi
authors.initials: S
authors.lastname: Murashima
authors.forename: Makiko
authors.initials: M
authors.lastname: Fujita
authors.forename: Motoshi
authors.initials: M
authors.lastname: Takao
authors.forename: Hironori
authors.initials: H
authors.lastname: Tenpaku
authors.forename: Akira
authors.initials: A
authors.lastname: Shimamoto
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Maki
authors.forename: Hajime
authors.initials: H
authors.lastname: Sakuma
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D021621:Imaging, Three-Dimensional / Q000295:instrumentation / Q000379:methods*; D008297:Male; D011651:Pulmonary Artery / Q000000981:diagnostic imaging*; D011667:Pulmonary Veins / Q000000981:diagnostic imaging*; D013997:Time Factors; D014057:Tomography, X-Ray Computed / Q000295:instrumentation / Q000379:methods*