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Table 2:

Results of the survey—rule out stroke clinical scan indicationa

Doctor IDNo. Series of Insufficient QualityTechnician ID
T1 (n = 12)T2 (n = 28)T3 (n = 7)T4 (n = 13)
Unneeded RescansUnneeded RecallsUnneeded RescansUnneeded RecallsUnneeded RescansUnneeded RecallsUnneeded RescansUnneeded Recalls
D1210026050110
D213231500622
D38612213371
D411431812604
D57502103360
Mean ± SD8.2 ± 4.25.4 ± 31.4 ± 0.720.4 ± 4.20.4 ± 0.22.6 ± 0.83.6 ± 1.16 ± 3.41 ± 0.4
  • Note:—ID indicates identification. The numbers in parenthesis next to the technician identification numbers represent the total numbers of insufficient quality series identified by each rater.

  • a All numbers reported are from the 49 series of the survey. Each series was evaluated twice, assuming that the scan indication was multiple sclerosis and stroke.