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Table 4 Correlations between IVUS and QCA parameters

From: Angiographically borderline left main coronary artery lesions: correlation of transthoracic doppler echocardiography and intravascular ultrasound: a pilot study

  IVUS
Plaque burden
IVUS
Minimum lumen area
IVUS
Minimum lumen diameter
Angiography R = 0.61 R = -0.48 R = -0.51
Diameter stenosis p < 0.05 p < 0.05 p < 0.05
Angiography R = 0.57 R = -0.41 R = -0.45
Area stenosis p < 0.05 p < 0.05 p < 0.05
Angiography R = -0.35 R = 0.64 R = 0.40
Minimum lumen diameter p = n.s. p < 0.001 p < 0.05