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Table 2 Feasibility of harmonic mode transthoracic echocardiographic visualization of coronary arteries with regard to arterial segment (results are given as a ratio in which the numerator is a number arterial segments visualized and denominator – number of arterial segments studied) [911]

From: Imaging of all three coronary arteries by transthoracic echocardiography. an illustrated guide

Coronary artery Proximal segment Middle segment Distal segment
LAD    
Ref. [10] 34/50 (68%) # 35/50 (70%) # 34/50 (68%) #
Ref. [11] 20/20 (100%) * 16/16 (100%) * 1/1 *
Cx    
Ref. [10] 17/45 (38%) # 11/45 (24%) # -
Ref. [11] 4/5 * 2/3 * -
RCA    
Ref. [10] 14/45 (31%) # - 15/45 (33%) #
Ref. [11] 3/4 * 5/15 * 1/2 *
Ref. [9] - - 62/81 (76%) #
  1. # Not contrast enhanced TTE; patients scheduled for primary coronary angiography [9, 10] * Contrast enhanced TTE; patients scheduled for control coronary angiography [11] Abbreviations used in the table: LAD – left anterior descending coronary artery Cx – left circumflex coronary artery RCA – right coronary artery