Primary study | ||
---|---|---|
Parameter | CORE320 [24] | CARS-320 [22] |
Tube voltage (kV) | 120 | 120 |
Tube current (mA) | ||
Body mass indexa | ||
Women | ||
≤ 20 | 270 | 200 |
20 ≤ 25 | 300 | 250 |
25 ≤ 30 | 300 | 300 |
30 ≤ 33 | 300 | 350 |
33 ≤ 36 | 300 | 400 |
36 ≤ 40 | 300 | 450 |
Men | ||
≤ 20 | 300 | 250 |
20 ≤ 25 | 350 | 300 |
25 ≤ 30 | 350 | 350 |
30 ≤ 33 | 350 | 400 |
33 ≤ 36 | 350 | 450 |
36 ≤ 40 | 350 | 500 |
ECG-gated tube current modulation | off | off |
Target of acquisition window (%) | 85 | 85 |
Acquisition window (%) | 20 | 20 |
Contrast agent | ||
Volume (mL), (flow [mL/s]) | ||
Weight | ||
< 60 kg | 50 (4.0) | 50 (4.0) |
60 ≤ 70 kg | 60 (4.5) | 60 (5.0) |
70 ≤ 80 kg | 60 (5.0) | 60 (5.0) |
80 ≤ 100 kg | 60 (5.0) | 70 (5.0) |
> 100 kg | 70 (5.0) | 70 (5.0) |
Acquisition kick-off (bolus tracking) | 300 HU in the descending aorta | 200 HU in the descending aorta |
Number of scanned segments | ||
Heart rate (beats per minute) | ||
< 65 | 1 | 1 |
65 ≤ 80 | 2 | 2 |
80 ≤ 118 | 2 | 3 |
118 ≤ 155 | 2 | 4 |
Temporal order of CTP imaging | Stress imaging after rest imaging | Stress imaging after rest imaging |
Time interval between rest and stress imaging (min) | 20 | 20 |
Vasodilator in stress imaging (flow [μg/kg/min]) | Adenosine (140) | Adenosine (140) |