From: Utilization of MRI in surgical decision making in the shoulder
Q7—What percentage of … cases do arrive at your consultation office already with a completed MRI scan? | ||||||
Mean | Minimum | Maximum | Std Deviation | Variance | Count | |
a) Rotator cuff pathology (including calcific tendinitis and biceps pathology)? | 50.71 | 10 | 100 | 25.49 | 649.49 | 28 |
b) Shoulder instability? | 33.57 | 0 | 80 | 21.58 | 465.82 | 28 |
c) Frozen shoulder? | 25.56 | 0 | 80 | 22.33 | 498.77 | 27 |
d) Glenohumeral arthritis? | 26.15 | 0 | 70 | 18.41 | 339.05 | 26 |
e) ACJ-Pathology? | 24.8 | 0 | 80 | 23 | 528.96 | 25 |
Q8—What percentage of … cases do you order an MRI scan? | ||||||
Mean | Minimum | Maximum | Std Deviation | Variance | Count | |
a) Rotator cuff pathology (including calcific tendinitis and biceps pathology)? | 55.36 | 10 | 100 | 29.7 | 882.02 | 28 |
b) Shoulder instability? | 48.15 | 0 | 100 | 33 | 1089.16 | 27 |
c) Frozen shoulder? | 11.5 | 0 | 80 | 19.31 | 372.75 | 20 |
d) Glenohumeral arthritis? | 20 | 0 | 80 | 25.3 | 640 | 20 |
e) ACJ-Pathology? | 17 | 0 | 80 | 23.26 | 541 | 20 |
Q9—What percentage of … cases do you get a CT scan instead? | ||||||
Mean | Minimum | Maximum | Std Deviation | Variance | Count | |
a) Rotator cuff pathology (including calcific tendinitis and biceps pathology)? | 2 | 0 | 10 | 4 | 16 | 15 |
b) Shoulder instability? | 41.85 | 0 | 100 | 31.04 | 963.24 | 27 |
c) Frozen shoulder? | 3.13 | 0 | 40 | 9.82 | 96.48 | 16 |
d) Glenohumeral arthritis? | 66.43 | 0 | 100 | 34.87 | 1215.82 | 28 |
e) ACJ-Pathology? | 2.14 | 0 | 20 | 5.58 | 31.12 | 14 |
Q10—What percentage of … cases do you get an Ultrasound instead? | ||||||
Mean | Minimum | Maximum | Std Deviation | Variance | Count | |
a) Rotator cuff pathology (including calcific tendinitis and biceps pathology)? | 33.6 | 0 | 100 | 30.84 | 951.04 | 25 |
b) Shoulder instability? | 1.43 | 0 | 10 | 3.5 | 12.24 | 14 |
c) Frozen shoulder? | 13.33 | 0 | 50 | 19.55 | 382.22 | 15 |
d) Glenohumeral arthritis? | 17.33 | 0 | 90 | 28.63 | 819.56 | 15 |
e) ACJ-Pathology? | 6 | 0 | 50 | 13.06 | 170.67 | 15 |
Q11—Do you personally look at the MRI images in cases of … ? | ||||||
Yes | No | Total | ||||
a) Rotator cuff pathology (including calcific tendinitis and biceps pathology)? | 96.55% | 28 | 3.45% | 1 | 29 | |
b) Shoulder instability? | 96.55% | 28 | 3.45% | 1 | 29 | |
c) Frozen shoulder? | 89.66% | 26 | 10.34% | 3 | 29 | |
d) Glenohumeral arthritis? | 93.10% | 27 | 6.90% | 2 | 29 | |
e) ACJ-Pathology? | 89.66% | 26 | 10.34% | 3 | 29 | |
Q12—Do you read the MRI report in cases of … ? | ||||||
Yes | No | Total | ||||
a) Rotator cuff pathology (including calcific tendinitis and biceps pathology)? | 89.66% | 26 | 10.34% | 3 | 29 | |
b) Shoulder instability? | 89.66% | 26 | 10.34% | 3 | 29 | |
c) Frozen shoulder? | 89.66% | 26 | 10.34% | 3 | 29 | |
d) Glenohumeral arthritis? | 79.31% | 23 | 20.69% | 6 | 29 | |
e) ACJ-Pathology? | 79.31% | 23 | 20.69% | 6 | 29 | |
Q13—If No, why do you not read the report? | ||||||
Answer | % | Count | ||||
often false positive | 42.86% | 3 | ||||
often false negative | 0.00% | 0 | ||||
takes too much time | 0.00% | 0 | ||||
often not at hand | 14.29% | 1 | ||||
other | 42.86% | 3 | ||||
Total | 100% | 7 | ||||
Q14—If Yes, why do you read the report? | ||||||
Answer | % | Count | ||||
do not want to miss something | 15.38% | 4 | ||||
to double-check one’s personal diagnosis | 61.54% | 16 | ||||
because it helps my surgical decision | 3.85% | 1 | ||||
other | 19.23% | 5 | ||||
Total | 100% | 26 |