Effectiveness of Myocardial Contrast Echocardiography Quantitative Analysis during Adenosine Stress versus Visual Analysis before Percutaneous Therapy in Acute Coronary Pain: A Coronary Artery TIMI Grading Comparing Study

Table 2

MCE visual interpretation at rest among TIMI flow grades before PCI n (%).

MCE visual interpretation	TIMI flow grades
	Grade 0	Grade 1	Grade 2	Grade 3
0	31 (64.6)	9 (11.7)	8 (6.7)	9 (2.8)
0.5	10 (20.8)	46 (59.7)	38 (31.9)	42 (13.0)
1	7 (14.6)	22 (28.6)	73 (61.3)	272 (84.2)
Total	48	77	119	323

TIMI: thrombolysis in myocardial infarction trial; PCI: percutaneous coronary intervention.
MCE visual interpretation at rest and TIMI flow grade correlated positively, rs  =  0.691, 𝑃<.001.
PCI: percutaneous coronary intervention; TIMI: thrombolysis in myocardial infarction trial.
Grades 0, 1, and 2 were abnormal, grade 3 was normal for TIMI grade. MCE Visual Interpretation 0 and 0.5 were abnormal, and 1 was normal for MCE Visual Interpretation.
On diagnosing myocardial perfusion abnormality TIMI flow grade and MCE Visual Interpretation at rest had a high degree of agreement, Kappa = .687, 𝑃<.001.