title: [Evaluation of the retrospective ECG-gated helical scan using half-second multi-slice CT: motion phantom study for volumetry].
abstract: ECG synchronized technique on multi-slice CT provide the thinner (less 2 mm slice thickness) and faster (0.5sec/rotation) scan than that of the single detector CT and can acquire the coverage of the entire heart volume within one breath-hold. However, temporal resolution of multi-slice CT is insufficient on practical range of heart rate. The purpose of this study was to evaluate the accuracy of volumetry on cardiac function measurement in retrospective ECG-gated helical scan. We discussed the influence of the degradation of image quality and limitation of the heart rate in cardiac function measurement (volumetry) using motion phantom.
authors.affiliation: Department of Radiology, Osaka University Hospital.
authors.forename: Shuji
authors.initials: S
authors.lastname: Yamamoto
authors.forename: Seiki
authors.initials: S
authors.lastname: Hamada
authors.forename: Kazunari
authors.initials: K
authors.lastname: Takahei
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Naito
authors.forename: Takashi
authors.initials: T
authors.lastname: Matsumoto
authors.forename: Yuji
authors.initials: Y
authors.lastname: Ogata
authors.forename: Shohzoh
authors.initials: S
authors.lastname: Nakanishi
mesh_terms: D004562:Electrocardiography; D006321:Heart / Q000000981:diagnostic imaging* / Q000502:physiology; D006339:Heart Rate; D019047:Phantoms, Imaging; D011856:Radiographic Image Enhancement; D012680:Sensitivity and Specificity; D036542:Tomography, Spiral Computed / Q000295:instrumentation* / Q000379:methods