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Table 1: Overview over the acquisition of datasets
C-Arm 3 Seconds C-Arm 5 Seconds CTP Prototype^{^a} CTP VPCT^{^b}
Sheep 1 
    Pre v v v v
    0 Hours v v v v
    3 Hours v v v v
Sheep 2 
    Pre v v v v
    0 Hours v v v v
    3 Hours v v v v
Sheep 3 
    Pre v v v x
    0 Hours x x v v
    3 Hours v v v v
Sheep 4 
    Pre x v v v
    0 Hours x x x x
    3 Hours x x x x
Sheep 5 x x x x
x x x x
x x x x
Sheep 6 
    Pre v v v v
    0 Hours v v v v
    3 Hours v v v v
Sheep 7 
    Pre v v v v
    0 Hours v v v v
    3 Hours v v v v
Total 14 15 16 15
Note:—Pre indicates data acquired before surgery; v, sets that were acquired as the protocol demanded and that were included in the evaluation; x, excluded datasets (The reasons are explained in the text) .
↵a Datasets acquired with CTP and calculated with the prototype software.
↵b Datasets acquired with CTP and calculated with the commercial software VPCT (Siemens).