Is myocardial fibrosis appropriately assessed by calibrated and 2D strain derived integrated backscatter?

Table 4 Correlations between IBS measurements and global and regional longitudinal strain, CMR tissue characterization parameters and histopathology CVF

	PLAX ivsIBS (r)	P	PLAX cIBS (r)	P	AP3C cIBS (r)	P	AP3C ivsIBS (r)	P
Overall population, n = 60
GLS	0.146	0.267	0.229	0.078	0.004	0.976	0.009	0.945
ivsLS	-0.158	0.228	0.114	0.385	0.048	0.714	-0.138	0.292
Global T1	0.105	0.423	0.299	0.020	0.131	0.317	-0.003	0.982
ivsT1	-0.021	0.875	0.165	0.208	0.061	0.641	-0.046	0.727
Global ECV	0.034	0.798	–0.184	0.167	–0.141	0.293	0.013	0.925
ivsECV	–0.140	0.286	–0.076	0.571	–0.024	0.859	0.098	0.457
LGE	0.047	0.720	0.183	0.163	0.198	0.130	-0.146	0.265
CVF	-0.249	0.055	-0.067	0.611	0.122	0.354	-0.189	0.149
LGE +, n = 30
GLS	0.494	0.060	0.310	0.096	-0.063	0.739	0.144	0.447
ivsLS	-0.004	0.985	0.303	0.103	-0.065	0.735	-0.001	0.998
Global T1	0.120	0.529	0.093	0.626	-0.144	0.447	0.202	0.283
ivsT1	0.267	0.155	0.096	0.616	0.069	0.716	0.275	0.141
Global ECV	0.160	0.417	–0.315	0.102	0.027	0.890	0.078	0.692
ivsECV	–0.028	0.882	–0.166	0.381	0.188	0.321	0.203	0.282
LGE	0.418	0.021	0.233	0.215	0.045	0.812	–0.012	0.951
CVF	–0.180	0.341	–0.054	0.776	0.101	0.597	–0.116	0.541

Bold P-values are statistically significant; GLS Global longitudinal strain; ivs basal interventricular septum; Other abbreviations as in Tables 2 and 3

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