Table 4.

Agreement of LV myocardial ischemia by image quality (poor or fair and good or excellent)

		MGH Echo core lab
	Poor or Fair (N = 36)	No ischemia	Mild	Moderate or severe
Site	No ischemia	0	0	0
	Mild	2	9	1
	Moderate or severe	2	4	18
		K = 0.492
	Good or Excellent (N = 45)
	No ischemia	0	0	0
	Mild	2	19	1
	Moderate or severe	0	3	20
		K = 0.755

Abbreviation: K, weighted kappa coefficients