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Table 1 Comparison of different CT technical parameters

From: Application of spectral CT combined with perfusion scan in diagnosis of pancreatic neuroendocrine tumors

Scan sequence Technology Tube voltage Tube current Pitch Scanning slice thickness Slice spacing
Plain scan Helical scan 120 kVp 100⁓450 mAs 0.992:1 5 mm 5 mm
Perfusion scan Axial scan 100 kVp 100 mAs, 50ASIR-V 0.992:1 5 mm 5 mm
Energy spectrum enhancement Helical scan 80 and 140 kVp Auto-adjustment 0.992:1 5 mm 5 mm