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Table 2 Distribution of anatomical landmark covered by CTA

From: Variability of computed tomography angiography coverage of lung parenchyma in acute stroke

  Overall CSC PSC p-value
n (%) 940 (100) 471 (50.1) 469 (49.9)  
Anatomical landmark on the most caudal axial CTA source image
 No lung parenchyma 19 (2) 4 (0.8) 15 (3.2) < 0.001* .01†
 Supra-aortic vessels 43 (4.6) 18 (3.8) 25 (5.3) .268†
 Aortic arc 223 (23.7) 140 (29.7) 83 (17.7) < 0.001†
 Ascending aorta 307 (32.7) 180 (38.2) 127 (27.1) < 0.001†
 Carina 60 (6.4) 30 (6.4) 30 (6.4) .986†
 Pulmonary artery 156 (16.6) 64 (13.6) 92 (19.6) .013†
 Aortic valve or left atrium 27 (2.9) 10 (2.1) 17 (3.6) .168†
 Right or left ventricle 97 (10.3) 23 (4.9) 74 (15.8) < 0.001†
 Diaphragm or abdominal organs 8 (0.9) 2 (0.4) 6 (1.3) .153†
  1. * χ2 test, two sided, p-values with a level of significance < 0.05; † χ2 test, two sided; p-values following Bonferroni-Correction with a level of significance < 0.003; CTA Computed tomography angiography, CSC Comprehensive stroke center, PSC Primary stroke center; Significant p-values are printed in bold