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 3

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

MCE visual interpretation	TIMI flow grades
	Grade 0	Grade 1	Grade 2	Grade 3
0	41 (85.4)	26 (33.8)	14 (11.8)	10 (3.1)
0.5	6 (12.5)	44 (57.1)	56 (47.1)	44 (13.6)
1	1 (2.1)	7 (9.1)	49 (41.2)	269 (83.3)
Total	48	77	119	323

TIMI, thrombolysis in myocardial infarction trial; PCI, percutaneous coronary intervention.
MCE Visual Interpretation at stress and TIMI flow grade correlated positively, rs  =  0.738, 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 stress had a completely consistent, Kappa = .827, 𝑃<.001.