| Autor: |
Krauss, X., Wall, Ernst, Doornbos, Joost, Blokland, Jacobus, Postema, Sandra, Roos, Albert, Laarse, Arnoud, Cats, Volkert, Voorthuisen, Ad, Bruschke, Albert, Krauss, X H, Van der Wall, E E, Doornbos, J, Blokland, J A, Postema, S, de Roos, A, Van der Laarse, A, Cats, V M, Van Voorthuisen, A E, Bruschke, A V |
| Zdroj: |
CardioVascular & Interventional Radiology; May1989, Vol. 12 Issue 3, p119-124, 6p |
| Abstrakt: |
The diagnostic accuracy of spin-echo Magnetic Resonance (MR) imaging in the detection and localization of a recent myocardial infarction (mean 4 days old) was compared to planar thallium-201 scintigraphy in 20 patients with a documented myocardial infarction. A control group of 10 subjects underwent a similar MR imaging procedure without thallium-201 scintigraphy. T1-weighted MR images (TE 30 msec) showed abnormal thinning of the infarcted left ventricular wall during systole (less than 50% of the opposite wall) in 11 patients (55%). On T2-weighted multi-echo MR images, (TE 30-60-90-120 msec) abnormally increased signal intensity was found in 17 patients and coincided with the location of the infarction. Thallium-201 scintigraphy detected the infarction in 18 patients. Comparison of T2-MR imaging and thallium-201 scintigraphy showed concordant findings in 82% of the left ventricular segments. In 9% of segments, thallium uptake was reduced with normal T2-MR and in 9% we found a normal thallium uptake with abnormal T2-MR findings. In all subjects of the control group, T1-MR images were normal, and only one subject showed increased signal intensity on T2-MR images. We conclude that the diagnostic accuracy of MR imaging in detecting a myocardial infarction is similar to that of T1-201 scintigraphy. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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