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Table 4 Correlations between EF and EF Shape Vector and traditionally measured parameters

From: A statistical shape modelling framework to extract 3D shape biomarkers from medical imaging data: assessing arch morphology of repaired coarctation of the aorta

Parameter

Ejection Fraction EF [%]

EF Shape Vector

N = 19

N = 19

Ejection Fraction EF [%]

-

r = 0.521* (p = .022)

Body Surface Area BSA [m2]

r = −0.147 (p = .548)

r = 0.000 (p = .999)

Age [years]

r = −0.243 (p = .316)

r = −0.142 (p = .561)

Height H [mm]

r = −0.391 (p = .098)

r = −0.246 (p = .310)

Volume iV [mm3/m2]

τ = −0.322 (p = .058)

τ = −0.228 (p = .172)

Surface Area iAsurf [mm2/m2]

r = −0.571*(p = .011)

r = −0.320 (p = .181)

Centreline length iLCL[mm/m2]

r = −0.255 (p = .293)

r = −0.338 (p = .157)

Centreline Tortuosity iToCL

r = −0.039 (p = .874)

r = 0.267 (p = .269)

Ratio Asurf/V

r = −0.386 (p = .103)

r = 0.072 (p = .770)

Median Curvature iCmed [1/mm m2]

r = 0.269 (p = .265)

τ = 0.158 (p = .345)

Maximum Diameter iDmax [mm/m2]

τ = −0.096 (p = .574)

τ = 0.064 (p = .064)

Minimum Diameter iDmin [mm/m2]

r = −0.409 (p = .082)

r = −0.239 (p = .324)

Median Diameter iDmed [mm/m2]

r = −0.363 (p = .127)

τ = −0.228 (p = .172)

Ascending Diameter iDasc [mm/m2]

τ = 0.000 (p = 0.999)

τ = 0.170 (p = .310)

Transverse Diameter iDtrans [mm/m2]

r = 0.020 (p = .937)

r = −0.018 (p = .942)

Isthmus Diameter iDisth [mm/m2]

r = −0.407 (p = .083)

r = −0.441 (p = .059)

Descending Diameter iDdesc [mm/m2]

r = −0.442 (p = .058)

r = −0.527* (p = .020)

Ratio Dasc/Ddesc

r = 0.312 (p = .193)

r = 0.735** (p < .001)

Ratio Disth/Dtrans

r = −0.362 (p = .128)

r = −0.453 (p = .052)

Ratio Disth/Ddesc

r = −0.152 (p = .535)

r = 0.083 (p = .736)

Ratio Dtrans/Ddesc

r = 0.456* (p = .050)

r = 0.457* (p = .049)

Arch height iA [mm/m2]

r = −0.154 (p = .529)

τ = −0.146 (p = .382)

Arch width iT [mm/m2]

r = 0.000 (p = .999)

r = 0.018 (p = .943)

Ratio A/T

r = −0.224 (p = .357)

r = −0.269 (p = .265)

  1. r denotes Pearson’s correlation coefficient for parametric correlations; τ denotes Kendall’s τ for non-parametric correlations; **marks significant level p ≤ .001; *marks significant level p ≤ .05