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Table 3 Regional analysis of longitudinal strains in the endocardial layer

From: Myocardial deformation after radiotherapy: a layer-specific and territorial longitudinal strain analysis in a cohort of left-sided breast cancer patients (BACCARAT study)

  Low dose to the LV n = 42 High dose to the LV n = 22
V0 V6 V0 V6
Basal level, % Mean ± SD −16.7 ± 5.6 −17.1 ± 5.0 −19.0 ± 3.5 −17.8 ± 3.2
p-value 0.52 0.10
Mid-level, % Mean ± SD − 18.6 ± 3.0 −17.0 ± 5.2 −17.6 ± 3.4 −17.5 ± 4.7
p-value 0.06 0.90
Apical level, % Mean ± SD −26.7 ± 5.8 −25.0 ± 7.2 −25.5 ± 6.3 −22.7 ± 6.9
p-value 0.18 0.04a
  1. LV Left Ventricle. Low dose to the LV corresponds to patients receiving < 8.6 Gy to the LV (66th percentile of dose distribution among the 64 patients). High dose to the LV corresponds to patients receiving > 8.6 Gy. aNot significant after Holm-Bonferroni method for multiple testing