[Evaluation of the retrospective ECG-gated helical scan using half-second multi-slice CT: motion phantom study for volumetry].
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.
Yamamoto
Shuji
S
Department of Radiology, Osaka University Hospital.
Hamada
Seiki
S
Takahei
Kazunari
K
Naito
Hiroaki
H
Matsumoto
Takashi
T
Ogata
Yuji
Y
Nakanishi
Shohzoh
S
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