Radiation
dose comparison of different studies.
Radiation dose (DLP)
Contrast load: rate (cc/s); total volume of contrast (cc)
Scanning time
(s)
Unenhanced CT head (64 slice GE) axial mode
946.93
-
~12
CTA (64 slice GE)
(head and neck)
helical
1195.19
4cc/s; 40cc
5.2
CTP ( 4cm cine) (64 slice GE)
2125.71
4cc/s; 45cc
45
CTP (8cm Toggle table) (64 slice GE)
1606.09
4 cc/s; 40 cc
46
320 CT (Toshiba)
Unenhanced CT, dsCTA,
CTPerfusion
1930
4cc/s; 50cc
65
ASNR 2009 (Presentation
number eSE 25)
9
CTA: CT angiogram; CTP: CT perfusion; dsCTA : dynamic subtracted CT angiogram.
