Valor da ressonância nuclear magnética na detecção da perviabilidade da artéria coronária após trombólise / Role of the Magnetic Resonance Imaging to Detect Artery Patency After Thrombolysis
Arq. bras. cardiol
;
64(3): 221-224, Mar. 1995.
Article
in Portuguese
| LILACS
| ID: lil-319701
ABSTRACT
PURPOSE--To determine the value of magnetic resonance imaging (MRI) in the noninvasive detection of infarct related coronary artery patency after thrombolysis. METHODS--We studied 26 patients with acute myocardial infarction submitted to thrombolysis underwent MRI studies before and after 0.1mmol/kg gadolinium-DTPA injection within the first 48 h of MI. Signal intensity was assessed by circumferential profile analysis techniques. RESULTS--The average ratio of signal intensity of infarcted tissue over normal myocardium (I/N) was significantly higher in patients with patent arteries (1.3 +/- 0.13 vs 1.12 +/- 0.07, p < 0.02). Compared to coronariography MRI, sensitivity of 81 and specificity of 100 for the diagnosis of coronary patency. CONCLUSION--Gadolinium infusion increased infarcted and normal myocardium differentiation. The study of gadolinium kinetics at MRI is a promising technique for noninvasive diagnosis of coronary patency.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Vascular Patency
/
Magnetic Resonance Imaging
/
Thrombolytic Therapy
/
Coronary Vessels
/
Myocardial Infarction
Type of study:
Diagnostic study
Limits:
Humans
Language:
Portuguese
Journal:
Arq. bras. cardiol
Journal subject:
Cardiology
Year:
1995
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade de São Paulo/BR
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