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Table 4 Territorial analysis of longitudinal strains in the endocardial layer for the coronary arteries

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
TLS - LAD, % Mean ± SD − 22.9 ± 4,3 −21.8 ± 5,0 − 22.7 ± 3.4 −20.7 ± 4.5
p-value 0.20 0.05a
TLS - Cx, % Mean ± SD − 19.0 ± 4.9 − 17.5 ± 5.1 −19.5 ± 3.8 −17.9 ± 5.5
p-value 0.10 0.25
TLS - RCA, % Mean ± SD − 16.2 ± 4.7 −16.2 ± 5.2 −16.9 ± 4.8 −15.6 ± 5.1
p-value 0.97 0.35
  1. Left Ventricle; TLS Territorial Longitudinal Strain, LAD Left Anterior Descending artery, Cx Circumflex artery, RCA Right Coronary Artery. 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