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Table 3 Correlations of TTDE PDV with QCA and IVUS parameters

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

Angiography (QCA) IVUS
Diameter stenosis R = 0.19 Plaque burden R = 0.507
  p = n.s.   p < 0.05
Area stenosis R = 0.16 Minimum lumen area R = -0.46
  p = n.s.   p < 0.05
Minimum lumen diameter R = 0.01 Minimum lumen diameter R = -0.18
  p = n.s.   p = n.s.
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