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Table 2 Imaging findings

From: Predictive value of cardiac magnetic resonance right ventricular longitudinal strain in patients with suspected myocarditis

 

Overall

RV GLS abnormal

RV GLS normal

p value

  

(> − 15.4%)

(≤ − 15.4%)

 

N = 659

N = 144

N = 515

Cardiac function mean ± SD

    

 LV EDV [ml]

192 ± 69.8

235.8 ± 91.6

180.6 ± 57.8

< 0.001

 LV EDV/BSA [ml/m2]

98.7 ± 33.9

119.6 ± 45.1

93.2 ± 27.9

< 0.001

 LV EF [%]

48.4 ± 15.1

35.7 ± 17

51.9 ± 12.5

< 0.001

 LV EF< 51% n (%)

297 (45.6)

108 (77.1)

189 (37.0)

< 0.001

 RV EDV [ml]

161.2 ± 49.8

180.6 ± 59.6

156.1 ± 45.6

< 0.001

 RV EDV/BSA [ml/m2]

82.3 ± 21

90.6 ± 25.1

80.2 ± 19.3

< 0.001

 RV EF [%]

47.9 ± 11.8

37.2 ± 13.3

50.7 ± 9.5

< 0.001

 RV EF abnormal n (%)

162 (25.9)

76 (58.0)

86 (17.4)

< 0.001

Feature tracking mean ± SD

    

 LV GLS [%]

− 12.9 ± 4.5

− 9.0 ± 4.6

− 13.9 ± 3.8

< 0.001

 LV GLS abnormal n (%)

302 (46.1)

109 (76.2)

193 (37.7)

< 0.001

 LV GRS [%]

22.8 ± 10.9

13.34 ± 8.02

26.18 ± 9.86

< 0.001

 LV GCS [%]

− 14.3 ± 5.3

− 9.7 ± 5.4

− 15.5 ± 4.6

< 0.001

 RV time to peak longitudinal strain [ms]

310.4 ± 67.2

287.5 ± 89.8

316.7 ± 57.9

< 0.001

 RV longitudinal strain rate [1/s]

− 1.21 ± 0.58

− 0.93 ± 0.49

− 1.29 ± 0.59

< 0.001

LGE

    

 LV LGE present n (%)

430 (65.3)

92 (63.9)

338 (65.6)

0.698

 LGE involves insertion points n (%)

130 (19.7)

33 (22.9)

97 (18.8)

0.277

 LGE septal n (%)

225 (34.2)

62 (43.1)

163 (31.7)

0.011

 LGE number of AHA-segments mean ± SD

2.9 ± 3.2

3.31 ± 3.36

2.65 ± 3.06

0.741

 LGE extent FWHM [g] mean ± SD

5.3 ± 8.5

4.6 ± 9.3

5.4 ± 8.4

0.090

 LGE RV

    

 Not definable due to image quality

270 (41)

67 (46.5)

203 (39.4)

 

 LGE RV present n (%)

75 (11.4)

27 (18.8)

48 (9.3)

< 0.001

 LGE RV absent n (%)

314 (47.5)

50 (34.7)

264 (51.3)

 

LV edema n (% of availablea)

204 (38.5)

35 (32.1)

169 (40.1)

0.125

RV edema n (% of availablea)

131 (26.2)

40 (32.8)

91 (24.1)

0.042

  1. AHA: American Heart Association; BSA: body surface area; EDV: end diastolic volume; EF: ejection fraction; FWHM: full width half max; GCS/GLS/GRS: global circumferential/longitudinal/radial strain; LGE, late gadolinium enhancement; LV: left ventricle; RV: right ventricle; SD: standard deviation
  2. aPoor image quality or missing sequences (T2-weighted images or LV T2 maps) did not allow the assessment of edema in 129 (19.6%) patients in the LV and in 159 patients (24.1%) in the RV