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Table 1 Mean bias and standard deviation of the difference between the manually and automatically derived contours

From: Ultrafast computation of left ventricular ejection fraction using temporal intensity variation in cine steady-state free precession cardiac MR images with or without contrast

  Apical EDV (mL, %) Mid EDV (mL, %) Basal EDV (mL, %) Total EDV (mL, %) Apical SV (mL, %) Mid ESV (mL, %) Basal ESV (mL, %) Total ESV (mL, %) EF (%) EF# (%)
Bias 0.2, 0.0 -0.3, 0.0 -1.5, -0.4 -0.8, -0.4 1.5, 1.3 4.5, 6.0 -0.3, -0.2 5.6, 7.0 -3.6 -5.4
SDD 3.9, 1.6 8.0, 4.0 5.1, 2.8 14.2, 7.1 3.9, 3.8 7.8, 8.3 3.6, 4.1 11, 11.8 3.9 5.6
  1. Bias = mean difference; EDV = end-diastolic volume; EF = ejection fraction; ESV = end-systolic volume; Mid = mid-cavity; SDD = standard deviation of the difference. Values computed by performing a Bland-Altman analysis. Results presented in mL and % error (ie, percentage of the total left ventricular volume calculated by manual delineation).
  2. # EF computed by rejecting the clinically unacceptable contours (ie, the area was set to zero for these contours).