Introduction
Aim
Material and method
Data collection
Question | Used scale and scores |
---|---|
If you have had previous MR-examinations, how do you remember the last examination? | Five-step bipolar Likert scale (have not had any previous MR-examination, not uncomfortable at all, very little uncomfortable, little uncomfortable, moderate uncomfortable, very uncomfortable, very much uncomfortabel) |
Did you experience inconsistent movement when going INTO the scanner? Question repeated for: dizziness, nausea, headache, and metallic taste, respectively; and questions were further repeated for: INSIDE the scanner, OUT of the scanner, and OUTSIDE the scanner, respectively. | Six-grade adjectival scale scale (none experienced, very little, little, moderate, much, very much) |
Did you experience any twitches in any body part during the examination? If you felt twitches in any body part during the examination, how intensely did the twitches feel when most severe? | Six-grade adjectival scale (none experienced, very little, little, moderate, much, very much) |
If you experienced any twitches, how would you rate this experience? | Six-grade adjectival scale scale (did not experience any twitches, not uncomfortable at all, very little uncomfortable, little uncomfortable, moderate uncomfortable, very uncomfortable, very much uncomfortable) |
Would you rate the total experience of this MR-examination as comfortable? | Five-step bipolar Likert scale scale (strongly agree, agree, neither agree nor disagree, disagree, strongly disagree) |
If you have had any previous MR-examinations, how would you rate todays’ MR-examination compared to your last one? | Three-step bipolar Likert scale scale (have not had any previous MR, better than previous, same as previous, worse than previous) |
How would you describe your attitude towards today’s examination when you arrived at the department? How would you describe your attitude towards today’s examination now that the examination is completed? | Five-point adjectival scale scale (very much positive, much positive, moderate positive, little positive, very little positive, not positive at all) |
MR system
Statistics
Results
Number of participants who underwent n (1–7) MR examinations | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
1 | 2 | 3 | 4 | 5 | 6 | 7 | Participants (n) | Completed questionnaires (n) | ||
Number of participants who completed n (1-7) questionnaires | 1 | 1 | 0 | 0 | 0 | 0 | 3 | 1 | 5 | 5 |
2 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | 2 | 4 | |
3 | 0 | 0 | 1 | 0 | 0 | 1 | 2 | 4 | 12 | |
4 | 0 | 0 | 0 | 0 | 0 | 3 | 3 | 6 | 24 | |
5 | 0 | 0 | 0 | 0 | 1 | 3 | 4 | 8 | 40 | |
6 | 0 | 0 | 0 | 0 | 0 | 5 | 14 | 19 | 114 | |
7 | 0 | 0 | 0 | 0 | 0 | 0 | 23 | 23 | 161 | |
Total | 1 | 1 | 1 | 0 | 1 | 14 | 48 | 67 | 360 |
IN | INSIDE | OUT | OUTSIDE | |||||
---|---|---|---|---|---|---|---|---|
Order | OR (95 % CI) | p-value | OR (95 % CI) | p-value | OR (95 % CI) | p-value | OR (95 % CI) | p-value |
Dizziness | ||||||||
1 | Reference | Reference | Reference | Reference | ||||
2 | 0.948 (0.280 - 3.203) | 0.696 (0.286 - 1.696) | 0.731 (0.304 - 1.759) | 0.395 (0.152 - 1.027) | ||||
3 | 0.634 (0.192 - 2.091) | 0.362 (0.145 - 0.905) | 0.332 (0.134 - 0.822) | 0.291 (0.109 - 0.776) | ||||
4 | 0.169 (0.051 - 0.555) | 0.169 (0.063 - 0.452) | 0.437 (0.176 - 1.085) | 0.087 (0.030 - 0.256) | ||||
5 | 0.119 (0.035 - 0.403) | 0.181 (0.066 - 0.496) | 0.146 (0.052 - 0.405) | 0.108 (0.036 - 0.324) | ||||
6 | 0.113 (0.030 - 0.417) | 0.070 (0.022 - 0.223) | 0.229 (0.081 - 0.654) | 0.118 (0.037 - 0.380) | ||||
7 | 0.281 (0.061 - 1.305) | 0.709 (0.197 - 2.554) | 0.439 (0.124 - 1.553) | 0.212 (0.054 - 0.833) | ||||
0.001 | <0.001 | 0.006 | <0.001 | |||||
Inconsistent movement | ||||||||
1 | Reference | Reference | Reference | Reference | ||||
2 | 0.249 (0.075 - 0.825) | 0.613 (0.212 - 1.774) | 0.845 (0.262 - 2.721) | 0.168 (0.039 - 0.720) | ||||
3 | 0.195 (0.058 - 0.662) | 0.299 (0.098 - 0.915) | 0.420 (0.212 - 2.441) | 0.139 (0.031 - 0.632) | ||||
4 | 0.102 (0.028 - 0.368) | 0.150 (0.045 - 0.493) | 0.720 (0.212 - 2.441) | 0.076 (0.014 - 0.412) | ||||
5 | 0.083 (0.022 - 0.324) | 0.260 (0.079 - 0.858) | 0.192 (0.049 - 0.749) | 0.060 (0.010 - 0.374) | ||||
6 | 0.078 (0.018 - 0.332) | 0.078 (0.020 - 0.303) | 0.296 (0.074 - 1.188) | 0.066 (0.010 - 0.431) | ||||
7 | 0.053 (0.008 - 0.364) | 0.260 (0.053 - 1.276) | 0.297 (0.047 - 1.878) | 0.025 (0.002 - 0.402) | ||||
0.003 | 0.006 | 0.2 | 0.02 | |||||
Nausea | ||||||||
1 | Reference | Reference | Reference | Reference | ||||
2 | 0.375 (0.120 - 1.172) | 0.584 (0.212 - 1.603) | 0.584 (0.147 - 2.325) | 0.287 (0.068 - 1.209) | ||||
3 | 0.218 (0.063 - 0.753) | 0.189 (0.057 - 0.627) | 0.552 (0.134 - 2.266) | 0.106 (0.020 - 0.566) | ||||
4 | 0.160 (0.043 - 0.597) | 0.268 (0.084 - 0.855) | 0.569 (0.133 - 2.425) | 0.103 (0.018 - 0.574) | ||||
5 | 0.153 (0.038 - 0.616) | 0.222 (0.063 - 0.787) | 0.211 (0.037 - 1.210) | 0.068 (0.010 - 0.470) | ||||
6 | 0.097 (0.019 - 0.497) | 0.135 (0.031 - 0.589) | 0.061 (0.006 - 0.612) | 0.017 (0.001 - 0.239) | ||||
7 | 0.139 (0.019 - 1.001) | 0.093 (0.012 - 0.713) | 0.140 (0.012 - 1.643) | 0.043 (0.003 - 0.636) | ||||
0.03 | 0.02 | 0.3 | 0.02 | |||||
Headache | ||||||||
1 | Reference | Reference | Reference | Reference | ||||
2 | 2.950 (1.067 - 8.159) | 1.598 (0.683 - 3.739) | 2.449 (0.933 - 6.428) | 0.802 (0.334 - 1.929) | ||||
3 | 0.567 (0.177 - 1.820) | 0.808 (0.341 - 1.915) | 0.999 (0.366 - 2.725) | 0.663 (0.269 - 1.631) | ||||
4 | 0.434 (0.125 - 1.507) | 0.345 (0.137 - 0.871) | 0.675 (0.235 - 1.938) | 0.285 (0.106 - 0.767) | ||||
5 | 0.185 (0.041 - 0.831) | 0.204 (0.074 - 0.560) | 0.190 (0.052 - 0.689) | 0.206 (0.071 - 0.601) | ||||
6 | 0.462 (0.123 - 1.736) | 0.300 (0.108 - 0.830) | 0.883 (0.287 - 2.718) | 0.289 (0.099 - 0.844) | ||||
7 | 0.419 (0.079 - 2.212) | 0.449 (0.126 - 1.601) | 0.347 (0.074 - 1.622) | 0.355 (0.092 - 1.362) | ||||
0.003 | 0.001 | 0.009 | 0.03 | |||||
Metallic taste | ||||||||
1 | Reference | Reference | Reference | Reference | ||||
2 | 0.012 (0.000 - 1.719) | 1.342 (0.225 - 7.985) | 2.167 (0.193 - 24.548) | 1.618 (0.255 - 10.252) | ||||
3 | 0.108 (0.004 - 2.890) | 0.640 (0.086 - 4.750) | 0.398 (0.025 - 6.241) | 0.136 (0.010 - 1.841) | ||||
4 | 0.395 (0.024 - 6.533) | 0.255 (0.024 - 2.710) | 0.322 (0.017 - 6.078) | 0.308 (0.029 - 3.301) | ||||
5 | 0.135 (0.004 - 4.227) | 1.250 (0.171 - 9.154) | 1.272 (0.086 - 18.723) | 1.536 (0.202 - 11.710) | ||||
6 | 0.006 (0.000 - 2.988) | 0.708 (0.081 - 6.195) | 0.396 (0.019 - 8.280) | 0.400 (0.034 - 4.741) | ||||
7 | 1.026 (0.000 - 2.988) | 0.821 (0.067 - 10.121) | 1.507 (0.061 - 37.024) | 0.955 (0.061 - 14.936) | ||||
0.6 | 0.9 | 0.9 | 0.5 |
PNS Quantity | PNS intensity | Experience of PNS | ||||
---|---|---|---|---|---|---|
Order | OR (95 % CI) | p-value | β (95 % CI) | p-value | β (95 % CI) | p-value |
1 | Reference | Reference | Reference | |||
2 | 1.173 (0.511 - 2.694) | -0.065 (-0.360 - 0.230) | 0.041 (-0.257 - 0.339) | |||
3 | 1.229 (0.528 - 2.857) | -0.010 (-0.309 - 0.290) | -0.024 (-0.326 - 0.279) | |||
4 | 0.957 (0.406 - 2.259) | -0.084 (-0.390 - 0.222) | 0.075 (-0.234 - 0.384) | |||
5 | 1.070 (0.441 - 2.597) | -0.033 (-0.348 - 0.282) | -0.011 (-0.330 - 0.307) | |||
6 | 0.646 (0.252 - 1.655) | -0.394 (-0.727 - -0.060) | -0.362 (-0.699 - -0.025) | |||
7 | 0.774 (0.244 - 2.454) | -0.203 (-0.618 - 0.211) | -0.112 (-0.530 - 0.307) | |||
0.9 | 0.3 | 0.3 |
Total experience | Anxiety stress | Previous MR | Attitude prior to MR examination | |||||
---|---|---|---|---|---|---|---|---|
Order | β (95 % CI) | p-value | β (95 % CI) | p-value | β (95 % CI) | p-value | β (95 % CI) | p-value |
1 | Reference | Reference | Reference | Reference | ||||
2 | -0.154 (-0.351 - 0.043) | -0.289 (-0.497 - -0.082) | 0.035 (-0.195 - 0.266) | 0.049 (-0.166 - 0.265) | ||||
3 | -0.277 (-0.477 - -0.077) | -0.260 (-0.471 - -0.049) | 0.087 (-0.148 - 0.323) | -0.013 (-0.237 - 0.212) | ||||
4 | -0.479 (-0.684 - -0.275) | -0.422 (-0.638 - -0.207) | 0.058 (-0.181 - 0.298) | -0.026 (-0.255 - 0.204) | ||||
5 | -0.381 (-0.591 - -0.170) | -0.430 (-0.652 - -0.207) | 0.185 (-0.064 - 0.433) | 0.127 (-0.110 - 0.365) | ||||
6 | -0.402 (-0.625 - -0.179) | -0.388 (-0.624 - -0.153) | 0.071 (-0.190 - 0.333) | -0.118 (-0.374 - 0.139) | ||||
7 | -0.338 (-0.616 - -0.060) | -0.457 (-0.750 - -0.164) | -0.195 (-0.537 - 0.147) | 0.037 (-0.300 - 0.373) | ||||
<0.001 | 0.001 | 0.5 | 0.7 |
Mean FD | Mean DVARS | |||
---|---|---|---|---|
Order | β (95 % CI) | p-value | β (95 % CI) | p-value |
1 | Reference | Reference | ||
2 | -0.009 (-0.027 - 0.009) | 0.902 (-0.990 - 2.794) | ||
3 | -0.016 (-0.034 - 0.002) | 0.333 (-1.584 - 2.250) | ||
4 | -0.018 (-0.036 - 0.000) | 0.248 (-1.711 - 2.208) | ||
5 | -0.018 (-0.037 - 0.001) | 0.285 (-1.748 - 2.318) | ||
6 | -0.021 (-0.042 - -0.001) | 0.645 (-1.508 - 2.799) | ||
7 | -0.015 (-0.040 - 0.010) | 1.134 (-1.545 - 3.813) | ||
0.3 | 1.0 |