Table 1:

Results of the survey—rule out MS clinical scan indicationa

Doctor IDNo. Series of Insufficient QualityTechnician ID
T1 (n = 26)T2 (n = 31)T3 (n = 12)T4 (n = 13)
Unneeded RescansUnneeded RecallsUnneeded RescansUnneeded RecallsUnneeded RescansUnneeded RecallsUnneeded RescansUnneeded Recalls
D0247570214011
D1131411914522
D23541348023022
D324118135213010
D4287862116014
D5304843119017
Mean ± SD25.7 ± 7.47.8 ± 47.2 ± 48.8 ± 63.2 ± 2.91.7 ± 1.415 ± 6.10.3 ± 0.812.7 ± 6.8
  • 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 MS and stroke.