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Cardiology Stress cardiac MR imaging useful in post MI testing
Cardiology Stress cardiac MR imaging useful in post MI testing
Stress cardiac MR imaging useful in post MI testing
Monday, 29 November 1999 19:00 | 
| Specialties - Cardiology |
Adenosine-stress cardiac magnetic resonance perfusion imaging is more accurate than standard exercise tolerance testing in some aspects of evaluating patients early after acute ST-elevation MI, according to UK researchers.
Adenosine-stress cardiac magnetic resonance (CMR) perfusion imaging is more accurate than standard exercise tolerance testing (ETT) in some aspects of evaluating patients early after acute ST-elevation MI, according to UK researchers.
"As CMR imaging can assess ventricular function, myocardial perfusion and scar in a single exam," lead investigator Dr. John P. Greenwood told Reuters Health, "it is increasingly used to determine the management of patients with acute coronary syndromes."
In order to confirm the accuracy and safety of the procedure, Dr. Greenwood of the University of Leeds and colleagues used CMR and ETT and X-ray coronary angiography to study 35 patients admitted with a first acute STEMI. CMR was performed two to eight days after presentation during the index admission.
As reported in the November issue of Heart, CMR was more sensitive in detecting significant coronary stenosis than was ETT (86 versus 48 per cent). It was also more specific (100 versus 50 per cent). Furthermore, the technique was more specific in predicting revascularization (94 versus 56 per cent).
The CMR procedure was well tolerated and all of the patients completed the procedure without complications.
"Our data further confirms the safety of stress CMR imaging in the acute setting," Dr. Greenwood concluded, "and highlights how CMR could be used to guide the appropriateness of any planned revascularization strategy.
"As CMR imaging can assess ventricular function, myocardial perfusion and scar in a single exam," lead investigator Dr. John P. Greenwood told Reuters Health, "it is increasingly used to determine the management of patients with acute coronary syndromes."
In order to confirm the accuracy and safety of the procedure, Dr. Greenwood of the University of Leeds and colleagues used CMR and ETT and X-ray coronary angiography to study 35 patients admitted with a first acute STEMI. CMR was performed two to eight days after presentation during the index admission.
As reported in the November issue of Heart, CMR was more sensitive in detecting significant coronary stenosis than was ETT (86 versus 48 per cent). It was also more specific (100 versus 50 per cent). Furthermore, the technique was more specific in predicting revascularization (94 versus 56 per cent).
The CMR procedure was well tolerated and all of the patients completed the procedure without complications.
"Our data further confirms the safety of stress CMR imaging in the acute setting," Dr. Greenwood concluded, "and highlights how CMR could be used to guide the appropriateness of any planned revascularization strategy.
