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Table 3 Study demographics

From: Accuracy of magnetic resonance studies in the detection of chondral and labral lesions in femoroacetabular impingement: systematic review and meta-analysis

Study Country Number of cases Mean age
(years)
MR procedure Lesion analyzed Sensitivity
(percent)
Specificity
(percent)
TP
(n)
FP
(n)
FN
(n)
TN
(n)
Anderson, L. A. 2009 [17] USA 27 N/S dMRA Acetabular chondral delamination 22 100 2 2 7 18
Bittersohl, B. 2011 [40] Switzerland 16 31 iMRA 1.5 T (morphologic) Combined chondral lesions 57 88 4 1 3 8
iMRA 1.5 T (dGEMRIC) Combined chondral lesions 75 33 5 6 2 3
Lattanzi, R. 2014 [27] USA 20 N/S iMRA 3 T(dGEMRIC) Combined chondral lesions 52 67 N/S N/S N/S N/S
Lattanzi, R. 2012 [28] USA 10 19.9 iMRA 1.5 T (morphologic) Combined chondral lesions 47 79 N/S N/S N/S N/S
iMRA 1.5 T (dGEMRIC) Combined chondral lesions 71 36 N/S N/S N/S N/S
Pfirrmann, C. W. 2008 [32] Switzerland 44 30.7 (16–49) dMRA 1.5 T Acetabular chondral delamination 74 90 17 2 6 19
Schmid, M. R. 2003 [15] Switzerland 42 37 dMRA 1.0 T Combined chondral lesions 79 77 15 5 4 18
Femoral head chondral lesions 60 88 N/S N/S N/S N/S
Zaragoza, E. 2009 [16] Canada, USA 48 38.8 dMRA 1.5 T Acetabular chondral delamination 79 84 28 3 1 16
Aprato, A. 2013 [33] Italy 41 23-25 dMRA 1.5 T Acetabular chondral lesions 69 88 11 5 3 22
Femoral head chondral lesions 46 81 6 8 5 22
Labral lesions 91 86 31 3 1 6
Banks, D. B. 2012 [36] United Kingdom 69 N/S dMRA 1.5 T Combined chondral lesions 17 100 6 0 29 34
Labral lesions 81 51 13 26 3 27
Crespo Rodriguez, A. M. 2014 [37] Spain 51 43 ± 9 dMRA 1.5 T Combined chondral lesions 92 54 37 5 3 6
Labral lesions 95 100 35 0 2 14
Gonzalez Gil, A. B. 2015 [31] Spain 36 39 dMRA – 3 T Acetabular chondral lesions 78.78 81.81 11 4 3 18
Femoral head chondral lesions 71.43 72.72 10 6 4 16
Labral lesions 86.95 76.92 20 3 3 10
James, S. L. 2006 [29] United Kingdom, Australia 46 32.3 cMRI – 1.5 T Acetabular chondral lesions 94 100 N/S N/S N/S N/S
Femoral head chondral lesions 100 94 N/S N/S N/S N/S
Labral lesions 100 100 N/S N/S N/S N/S
McGuire, C. M. 2012 [13] Ireland 61 32 dMRA – 1.5 T
(31 cases)
Acetabular chondral lesions 86 50 25 1 4 1
Femoral head chondral lesions 85 44 12 8 3 8
Labral lesions 96 33 25 4 1 1
cMRI – 1.5 T
(30 cases)
Acetabular chondral lesions 78 33 21 2 6 1
Femoral head chondral lesions 69 43 10 9 5 6
Labral lesions 86 100 25 0 4 1
Perdikakis, E. 2011 [30] Greece 14 43 dMRA 1.5 T Combined chondral lesions 63 33 N/S N/S N/S N/S
Labral lesions 100 50 N/S N/S N/S N/S
Petchprapa, C. N. 2015 [21] USA 41 33-35 iMRA 3 T Acetabular chondral lesions 69 89 N/S N/S N/S N/S
Femoral head chondral lesions 69 95 N/S N/S N/S N/S
Labral lesions 89 99 N/S N/S N/S N/S
Sahin, M. 2014 [38] Turkey 14 35 dMRA – 1.5 T Acetabular chondral lesions 89 40 8 3 1 2
Femoral head chondral lesions 100 90 4 1 0 9
Labral lesions 100 50 10 2 0 2
Sutter, R. 2014 [12] Switzerland 28 31.8 dMRA – 1.5 T Acetabular chondral lesions 91 25 22 3 2 1
Femoral head chondral lesions 50 90 3 2 3 20
Labral lesions 89 50 23 1 3 1
cMRI – 1.5 T Acetabular chondral lesions 83 50 20 2 4 2
Femoral head chondral lesions 50 100 3 0 3 22
Labral lesions 89 50 23 1 3 1
Zlatkin, M. B. 2010 [35] USA 14 39.0 iMRA 1.5 T Combined chondral lesions 81 100 9 0 2 3
Labral lesions 100 100 13 1 0 0
cMRI 1.5 T Combined chondral lesions 81 100 9 0 2 3
Labral lesions 84 100 11 0 2 1
Reurink, G. 2012 [34] Netherlands 95 41.3 dMRA 1.5 T Labral lesions 86 75 78 1 13 3
Studler, U. 2008 [39] Switzerland 57 35.0 dMRA 1.5 T Labral lesions 97 53 43 6 1 7
Tian, C. Y. 2014 [14] China 90 35.1 dMRA 3 T Labral lesions 95 84 N/S N/S N/S N/S
cMRI 3 T Labral lesions 66 77 39 7 20 24
  1. cMRI conventional magnetic resonance imaging, dMRA direct magnetic resonance arthrography, iMRA indirect magnetic resonance arthrography, N/S not stated, TP T tesla, true-positives, TN true-negatives, FP false-positives, FN false-negatives, dGEMRIC Delayed Gadolinium Enhanced Magnetic Resonance Imaging of Cartilage