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Table 1 Stroke scan protocol. Scout images and test bolus details are not reported

From: 3D convolutional neural networks applied to CT angiography in the detection of acute ischemic stroke

  Non-contrast CT CT perfusion CT angiography
Tube voltage (kVp) 120 80 120
Reference current time (Qref mAs) 273 120 150
Reconstruction kernel J45 s H20f I30f
Pitch 0.55 0.5 1.3
Contrast agent administration 45 mL (6 mL/s) 50 mL (5 mL/s)
Contrast agent timing 6 s delay Test bolus time to peak + 12 s
Dose length product (mGy · cm) 540 1430 370
  1. CT computed tomography, Qref quality reference effective tube current-time product (used by Siemens Healthineers)
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