TY - JOUR
T1 - Optimizing contrast media application in coronary CT angiography at lower tube voltage: Evaluation in a circulation phantom and sixty patients
AU - Kok, Madeleine
AU - Mihl, Casper
AU - Hendriks, Babs M. F.
AU - Altintas, Sibel
AU - Kietselaer, Bas L. J. H.
AU - Wildberger, Joachim E.
AU - Das, Marco
PY - 2016/6
Y1 - 2016/6
N2 - Purpose: The purpose was to investigate optimal contrast media (CM) injection parameters for lower kVp settings, whilst maintaining diagnostic attenuation levels. Methods and materials: First, a circulation phantom with physiological parameters (BP 120/80 mmHg, HR 60 bpm) was used. A fixed CM injection protocol was used for each kVp setting (300 mgI/m1 [Iopromide], volume =45 ml, flow rate = 6.0 ml/s, iodine delivery rate [IDR] = 1.8 gI/s, iodine load = 13.5 gI; at 120, 100, 80 and 70 kVp). Then, IDR was decreased by steps of 0.2 gI/s for each kVp setting, until diagnostically insufficient attenuation values were reached (
AB - Purpose: The purpose was to investigate optimal contrast media (CM) injection parameters for lower kVp settings, whilst maintaining diagnostic attenuation levels. Methods and materials: First, a circulation phantom with physiological parameters (BP 120/80 mmHg, HR 60 bpm) was used. A fixed CM injection protocol was used for each kVp setting (300 mgI/m1 [Iopromide], volume =45 ml, flow rate = 6.0 ml/s, iodine delivery rate [IDR] = 1.8 gI/s, iodine load = 13.5 gI; at 120, 100, 80 and 70 kVp). Then, IDR was decreased by steps of 0.2 gI/s for each kVp setting, until diagnostically insufficient attenuation values were reached (
KW - Multidetector-row computed tomography
KW - Contrast media
KW - Tube voltage
U2 - 10.1016/j.ejrad.2016.03.022
DO - 10.1016/j.ejrad.2016.03.022
M3 - Article
C2 - 27161054
SN - 0720-048X
VL - 85
SP - 1068
EP - 1074
JO - European Journal of Radiology
JF - European Journal of Radiology
IS - 6
ER -