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Table 1 Description of studies included in the systematic review

From: MRI T2 and T1ρ relaxation in patients at risk for knee osteoarthritis: a systematic review and meta-analysis

Authors

Participants

n (nmale)

Age

Scanner

Coil

T1ρ Sequence (resolution)

TSL (ms)/SL Frequency (Hz)

T2 Sequence (resolution)

TR/TE

Amano et al. (2016)c

Control

19 (13)

31±5

3T GE

Invivo 8-Ch Tx/Rx

Sag 3D MAPSS (0.3×0.3×1.5)

0, 10, 40, 80/500

Sag 3D MAPSS (0.3×0.3×1.5)

4000/0, 13, 26, 51

ACL injured

51 (29)

29±9

van der Heijden et al. (2016)c

Control

70 (29)

23±6

3T GE

Invivo 8-Ch Tx/Rx

3D FSE (0.5×0.8×3.0) [3 slices/SR]

1, 16, 32, 64, 125/500

3D FSE (0.5×0.8×3.0) [3 slices/SR]

1263/3, 13, 27, 40, 68

PFP

64 (35)

23±7

Apprich et al. (2010)bc

ICRS Grade 0

14 (N/A)

37±8

3T Siemens

8-Ch Knee Array

--

--

Ax 2D MESE (0.4×0.4×3.0)

1200/14, 28, 41, 55, 69, 83

ICRS Grade 1

5 (N/A)

37±8

Apprich et al. (2012)bc

ICRS Grade 0

11 (N/A)

30±9

3T Siemens

8-Ch Knee Array

--

--

Ax 2D MESE (0.2×0.2×2.0)

1200/14, 28, 41, 55, 69, 83

ICRS Grade 1

10 (N/A)

30±9

Bae et al. (2015)bc

Uninjured Knee

10 (7)

34±8

3T Siemens

Siemens 8-Ch Tx/Rx

--

--

2D ME-FSE (0.5×0.5×3.0) [3 slices/SR]

1700/11, 21, 32, 42, 53, 64, 74, 85, 95, 106

ACLR Knee

10 (7)

34±8

Baum et al. (2012)ac

OAI Healthy

42 (21)

50±3

3T Siemens

Siemens 15-Ch Tx/Rx

--

--

Sag 2D MESE (0.3×0.4×3.0)

2700/10, 20, 30, 40, 50, 60, 70

OAI Incidence

42 (21)

50±3

Baum et al. (2013)ac

OAI Healthy

36 (11)

50±3

3T Siemens

Siemens 15-Ch Tx/Rx

--

--

Sag 2D MESE (0.3×0.4×3.0)

2700/10, 20, 30, 40, 50, 60, 70

OAI Incidence

78 (33)

51±3

Baum et al. (2012)ac

OAI Healthy

41 (15)

51±3

3T Siemens

Siemens 15-Ch Tx/Rx

--

--

Sag 2D MESE (0.3×0.4×3.0)

2700/10, 20, 30, 40, 50, 60, 70

OAI Incidence

101 (50)

51±3

Möstrom et al. (2015)c

Healthy Control

16 (9)

22±2

1.5T Philips

N/R

--

--

Sag 2D MESE (0.5×0.5×3.0)

2000/9, 18, 27, 36, 45, 54, 63, 72

Patellar Dislocation

16 (9)

22±2

Bining et al. (2009)c

Healthy Control

60 (N/A)

38±14

1.5T GE

Signa HD Tx/Rx

--

--

Sag 2D MESE (0.6×0.6×4.0)

1000/8, 16, 24, 32, 40, 48, 56, 64

Cartilage Lesions

24 (N/A)

45±17

Bolbos et al. (2008)c

Healthy Control

15 (11)

30±9

3T GE

Tx/Rx Quadrature Knee

Sag 3D SPGR (0.5×0.7×3.0)

0, 10, 40, 80/500

--

--

ACL Rupture

16 (11)

33±6

Farrokhi et al. (2011)bc

Healthy Control

10 (0)

27±4

3T GE

GE 8-Ch Knee

--

--

Sag 2D MESE (0.4×0.8×4.0) [3 slices/SR]

1800/20, 40, 60, 80

PFP

10 (0)

28±4

Gheno et al. (2016)c

Healthy Control

27 (22)

28±4

3T Philips

Invivo 8-Ch Tx/Rx

--

--

Sag 2D MESE (0.3×0.3×3.0)

3100/15, 30, 45, 60, 75, 90

ACLR

27 (22)

29±5

Van Ginckel et al. (2013)

Healthy Control

15 (8)

27±3

3T Siemens

8-Ch Knee

--

--

Sag 2D MESE (0.4×0.4×3.0)

1000/14 28, 41, 55, 69

ACLR

15 (8)

27±1

Gupta et al. (2014)c

Healthy Control

10 (8)

35±6

3T GE

Tx/Rx Quadrature Knee

Sag 3D SPGR (0.5×1.1×4.0) [3 slices/SR]

0, 10, 40, 80/500

--

--

ACL Injury

10 (5)

39±6

Haughom et al. (2012)c

Healthy Control

11 (4)

33±9

3T GE

8-Ch Tx/Rx

Sag 3D SPGR (0.3×0.6×1.5)

0, 10, 40, 80/500

--

--

ACLR

11 (4)

33±9

Hovis et al. (2011)ac

OAI Healthy

33 (8)

50±3

3T Siemens

N/R

--

--

Sag 2D MESE (0.3×0.4×3.0)

2700/10, 20, 30, 40, 50, 60, 70

OAI Incidence

128 (57)

51±3

Joseph et al. (2011)ac

OAI Healthy

53 (17)

50±3

3T Siemens

N/R

--

--

Sag 2D MESE (0.3×0.4×3.0)

2700/10, 20, 30, 40, 50, 60, 70

OAI Incidence

93 (42)

51±3

Kai et al. (2011) c

Healthy Control

143 (72)

40±13

1.5T Siemens

Signa HD 8-Ch Tx/Rx

--

--

Sag 2D MESE (0.6×0.6×4.0)

1000/8, 16, 24, 32, 40, 48, 56, 64

Meniscal Lesions

57 (27)

41±13

Kang et al. (2016)c

Healthy Control

53 (15)

16±2

1.5T GE

N/R

--

--

Sag 2D MESE (0.5×0.9×4.0)

1500/9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99

PF Instability

53 (15)

16±2

Lansdown et al. (2015)bc

Healthy Control

10 (4)

31±5

3T GE

Invivo 8-Ch Tx/Rx

Sag 3D MAPSS (0.6×0.6×3.0)

0, 10, 40, 80/500

--

--

ACLR

20 (8)

32±8

Lau et al. (2016)c

Healthy Control

6 (3)

29

3T GE

Invivo 8-Ch Tx/Rx

2D FSE (0.3×0.6×1.5)

0, 10, 40, 80/500

--

--

PFP

10 (2)

32

Liebl et al. (2015)a

OAI Healthy

80 (30)

58±8

3T Siemens

USA Instruments Tx/Rx

--

--

Sag 2D MESE (0.3×0.4×3.0)

2700/10, 20, 30, 40, 50, 60, 70

OAI Incidence

50 (22)

60±8

H. Li et al. (2013)c

Healthy Control

15 (15)

27±5

3T Siemens

N/R

--

--

Sag 2D MESE (0.4×0.4×3.0) [5 slices/SR]

1523/14, 28, 41, 55, 69

ACLR

30 (30)

29±5

X. Li et al. (2011)ac

Healthy Control

10 (7)

34

3T GE

Quadrature Tx/Rx

Sag 3D SPGR (0.5×1.1×2.5)

20, 40. 60, 80/500

Sag 2D MESE (0.5×1.1×2.5)

2000/7, 12, 28, 60

ACL Injured

12 (7)

34

Matsubara et al. (2015)c

Healthy Control

19 (19)

39±7

3T Philips

8-Ch Tx/Rx

Sag 2D FFE (0.4×0.4×3.0) [3 slices/SR]

1, 20, 40, 60, 80/500

--

--

Meniscal Tear

22 (15)

57±14

Mosher et al. (2004)

18-30 y.o. Healthy

8 (0)

25±1

3T Bruker

Doty Scientific Litz

--

--

Sag 2D MESE (0.5×0.5×3.0)

1500/9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99, 108

66-86 y.o. Healthy

7 (0)

75±7

Okazaki et al. (2015)c

Healthy Control

6 (N/A)

32±2

3T Philips

8-Ch Tx/Rx

Sag 2D SPGR (0.4×0.4×3.0) [4 slices/SR]

1, 20, 40, 60, 80/500

--

--

PCL Deficient

6 (N/A)

17±6

Osaki et al. (2015)c

Healthy Control

14 (14)

37±6

3T Philips

8-Ch Tx/Rx

Sag 2D SPGR (0.4×0.4×3.0) [3 slices/SR]

1, 20, 40, 60, 80/500

--

--

ACL Injured

49 (30)

25±9

Palmieri-Smith et al. (2016)

Healthy Control

11 (5)

20±5

3T Philips

N/R

--

--

Sag 2D MESE (0.5×0.5×2.0)

1000/8, 16, 24, 32, 40, 48, 56, 64

ACL Injured

11 (5)

19±6

Pedoia et al. (2015)c

Healthy Control

15 (N/A)

32±5

3T GE

Invivo 8-Ch Tx/Rx

Sag 3D MAPSS (0.5×1.1×4.0)

0, 10, 40, 80/500

--

--

ACL Injured

40 (N/A)

30±8

Pedoia et al. (2016)c

Healthy Control

10 (5)

32±4

3T GE

Invivo 8-Ch Tx/Rx

Sag 3D MAPSS (0.5×1.1×4.0)

0, 10, 40, 80/500

--

--

ACL Injured

52 (21)

28±12

Pedoia et al. (2017)c

Healthy Control

15 (10)

31±5

3T GE

Invivo 8-Ch Tx/Rx

Sag 3D MAPSS (0.5×1.1×4.0)

0, 10, 40, 80/500

Sag 3D MAPSS (0.5×1.1×4.0)

4000/0, 14, 27, 55

ACL Injured

40 (25)

30±8

Rehnitz et al. (2014)c

Healthy Control

10 (N/A)

25

3T Siemens

Siemens 15-Ch Tx/Rx

--

--

Sag 2D MESE (0.4×0.4×3.0) [3 slices/SR]

1940/12, 24, 35, 47, 59, 71, 83, 94, 106, 118, 130, 142, 153

Cartilage Lesions

40 (N/A)

47

Russell et al. (2017)c

Healthy Control

15 (6)

57±9

3T GE

Invivo 8-Ch Tx/Rx

Sag 2D SPGR (0.5×1.1×4.0)

0, 2, 4, 6, 8, 12, 20, 40, 80/500

Sag 2D MESE (0.5×1.1×4.0)

4000/0, 2, 4, 7, 15, 29, 44, 58

Cartilage Lesions

15 (6)

56±8

Sauerschnig et al. (2014)c

Neutral

12 (4)

25±2

1.5T Siemens

Medical Advances 8-Ch

--

--

Sag 2D MESE (0.4×0.5×1.0)

1690/10, 20, 30, 40, 50, 60

Varus Alignment

12 (10)

26±1

ACLR

40 (26)

35±8

Snoj et al. (2016)bc

Healthy Controls

20 (11)

33±7

3T Siemens

Invivo 8-Ch Tx/Rx

--

--

Sag 2D MESE (0.4×0.4×3.0) [2 slices/SR]

1000/14, 28, 41, 55, 69, 83

ACLR

40 (26)

35±8

Subhawong et al. (2014)c

Healthy Control

28 (17)

31±10

3T Siemens

N/R

--

--

Sag 2D MESE (N/A) [1 slice/SR]

1650/13, 26, 39, 52, 65, 77

PFP

22 (8)

34±13

Su et al. (2013)c

Healthy Control

16 (8)

33

3T GE

Clinical MR Solutions Tx/Rx Quadrature

Cor 3D SPGR (0.5×0.7×4.0)

0, 10, 40, 80/500

Sag 3D SPGR (0.5×0.7×4.0)

2000/4, 15, 25, 46

ACL Injured

15 (7)

35

Su et al. (2016)c

Healthy Control

54 (31)

30±8

3T GE

Clinical MR Solutions Tx/Rx Quadrature

Cor 3D SPGR (0.5×0.7×4.0)

0, 10, 40, 80/500

Sag 3D SPGR (0.5×0.7×4.0)

2000/4, 15, 25, 46

ACL Injured

54 31(31)

30±8

Theologis et al. (2014)bc

Healthy Control

18 (8)

38±8

3T GE

Clinical MR Solutions Tx/Rx Quadrature

Sag 3D SPGR (0.5×0.7×4.0)

0, 10, 40, 80/500

--

--

ACLR

18 (8)

38±8

Thuiller et al. (2013)c

Healthy Control

10 (4)

31±3

3T GE

Invivo 8-Ch Tx/Rx

2D FSE (0.3×0.6×1.5)

0, 10, 40, 80/500

--

--

PFP

20 (10)

31±5

Wirth et al. (2016)ac

Healthy Control

89 (36)

55±8

3T Siemens

Siemens 15-Ch Tx/Rx

--

--

Sag 2D MESE (0.3×0.3×3.0)

2700/10, 20, 30, 40, 50, 60, 70

Risk for OA

28 (14)

61±9

Witschey et al. (2010)

Healthy Controls

9 (2)

N/R

1.5T Siemens

Invivo 8-Ch Tx/Rx

3D GRE (0.5×0.6×0.5)

--

--

--

Cartilage Lesions

6 (3)

N/R

Xu et al. (2011)

Healthy Controls

30 (18)

25

3T Philips

SENSE 8-Ch

--

--

Sag 2D MESE (0.5×0.3×3.0)

2400/15, 30, 45, 60, 75, 90

Cartilage Injury

42 (25)

37

Zaid et al. (2015)bc

Healthy Controls

25 (12)

28±7

3T GE

Invivo 8-Ch Tx/Rx

Sag 3D SPGR (0.5×1.1×4.0)

--

--

--

ACLR

25 (12)

28±7

Kim et al. (2018)bc

Healthy Control

10 (7)

34±8

3T Siemens

Siemens 8-Ch

--

--

Sag 2D MESE (0.5×0.5×3.0) [2 slices/SR]

1700/11, 21, 32, 42, 53, 64, 72, 85, 95, 106

ACLR

10 (7)

34±8

Kogan et al. (2018)c

Healthy Control

15 (10)

33±11

3T GE

NeoCoil 16-Ch Tx/Rx Flex

--

--

3D DESS (0.5×0.5×1.5)

24.6/5.8, 43.4

ACL Injured

15 (10)

33±11

Mostrom et al. (2017)c

Healthy Control

17 (5)

25±3

1.5T Philips

N/R

--

--

Sag 2D MESE (0.5×0.5×3.0)

2000/9, 18, 27, 36, 45, 54, 63, 72

PF Instability

17 (5)

25±3

Pfeiffer et al. (2017)abc

Healthy Control

21 (11)

24±3

3T Siemens

Siemens XR 80/200 Gradient Coil

3D FLASH (1.8×0.9×3.0)

0, 10, 20, 30, 40/500

--

--

ACLR

21 (11)

24±3

Pietrosimone et al. (2017)bc

Healthy Control

18 (8)

22±4

3T Siemens

Siemens 4-Ch Flex Coil

3D FLASH (0.6×1.3×3.0)

0, 10, 20, 30, 40/500

--

--

ACLR

18 (8)

22±4

Tao et al. (2018)c

Healthy Control

23 (7)

29±8

3T Siemens

Siemens 8-Ch Tx/Rx

--

--

Sag 2D MESE (0.4×0.4×3.0)

1523/13.8, 27.6, 41.4, 55.2, 69.0

ACL Rupture

23 (5)

32±10

Teng et al. (2017)c

Healthy Control

12 (8)

32±6

3T GE

Invivo 8-Ch Tx/Rx

Sag 3D MAPSS (0.5×1.1×4.0)

0, 10, 40, 80/500

Sag 3D MAPSS (0.5×1.1×4.0)

0, 14, 27, 55

ACL Rupture

33 (20)

31±9

Wang et al. (2018)c

Healthy Control

9 (4)

26±5

3T Siemens

Siemens 8-Ch

--

--

Sag 2D MESE (0.4×0.4×3.0) [3/5/10 slices/SR]

1200/14, 28, 41, 55, 69

ACLR

28 (17)

30±6

Collins et al. (2018)b

Normal BMI

8 (5)

30

3T Siemens

Invivo 8-Ch Tx/Rx

Sag 3D FISP (1.1×0.5×3.0)

3500/5, 10, 40, 80/500

--

--

Obese BMI

7 (3)

32

  1. ms milliseconds, SL spin lock, Hz Hertz, TR Repetition time, TE echo time, ACL anterior cruciate ligament, ACLR ACL reconstruction, GE General Electric, MAPSS magnetization-prepared spoiled gradient echo, SR subregion, PF patellofemoral, PFP patellofemoral pain, FFE fast field echo, FSE fast spin echo, ICRS International Cartilage Rating Scale, Ch channel, Sag sagittal, Cor coronal, Ax axial, MESE multi-echo spin echo, OAI Osteoarthritis Initiative, Tx transmit, Rx receive, N/R not reported, SPGR spoiled gradient recalled echo, FISP fast imaging with steady state precession
  2. amulticenter study
  3. buse of pre-scan unloading protocol
  4. cindicates post-processing methods that could be used in any dataset