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Table 2 The segment visibility score distribution for each dose and CA injected

From: Endocardial border delineation capability of a novel multimodal polymer-shelled contrast agent

CA (injected dose) All segments Apical Mid Base
(n = 144) (n = 48) (n = 48) (n = 48)
  0 1 2 0 1 2 0 1 2 0 1 2
SonoVue (1.5 ml) 1 39 104 1 33 14 0 0 48 0 6 42
Polymer-shelled CA (1.5 ml) 4 49 91 1 26 21 0 3 45 3 20 25
  (P < 0.05) (NS) (NS) (P < 0.001)
Polymer-shelled CA (3 ml) 12 48 84 3 27 18 3 4 41 6 17 25
  (P < 0.001) (NS) (P < 0.05) (P < 0.001)
Polymer-shelled CA (5 ml) 2 47 95 2 22 24 0 4 44 0 21 27
  (NS) (NS) (P < 0.05) (P < 0.05)
  1. A significant difference in segment scores between SonoVue and the polymer-shelled CA is indicated by its P-value and a nonsignificant difference with NS (paired by segment and pig using a Wilcoxon signed-rank test).
  2. CA = contrast agent (0 = not, 1 = weakly, 2 = visible).