MRA Chest Without and With IV Contrast MR angiography (MRA) has potential uses in the nonischemic setting if acute thoracic aorta conditions, including dissection or intramural hematoma, or aneurysm or pulmonary embolism are being considered [40]. There is no relevant literature to support the use of MRA chest without and with IV contrast for the evaluation of the coronaries or the heart structures in the setting of acute nonspecific chest pain with low probability of CAD. MRA Chest Without IV Contrast MRA has potential uses in the nonischemic setting if acute thoracic aorta conditions, including dissection or intramural hematoma, or aneurysm or pulmonary embolism are being considered [40]. There is no relevant literature to support the use of MRA chest without IV contrast for the evaluation of the coronaries or the heart structures in the setting of acute nonspecific chest pain with low probability of CAD. MRI Heart Function and Morphology Without IV Contrast Pericarditis, as a cause of chest pain, can be potentially excluded by direct assessment of pericardial thickness on noncontrast MRI heart function and morphology images [41]. Characterization of other myocardial and pericardial conditions would optimally require administration of a gadolinium contrast agent. There is no relevant literature to support the use of MRI as an initial imaging test in the patient with acute nonspecific chest pain with a low probability of CAD. MRI Heart Function and Morphology Without and With IV Contrast Although there has been increasing use of MRI with a contrast agent to document clinically suspected myocarditis in patients who have been ruled out for acute myocardial infarction, these are typically patients who have had elevated troponins and thus would not fall in the low probability category [42,43].
Acute Nonspecific Chest Pain Low Probability of Coronary Artery Disease PCAs. MRA Chest Without and With IV Contrast MR angiography (MRA) has potential uses in the nonischemic setting if acute thoracic aorta conditions, including dissection or intramural hematoma, or aneurysm or pulmonary embolism are being considered [40]. There is no relevant literature to support the use of MRA chest without and with IV contrast for the evaluation of the coronaries or the heart structures in the setting of acute nonspecific chest pain with low probability of CAD. MRA Chest Without IV Contrast MRA has potential uses in the nonischemic setting if acute thoracic aorta conditions, including dissection or intramural hematoma, or aneurysm or pulmonary embolism are being considered [40]. There is no relevant literature to support the use of MRA chest without IV contrast for the evaluation of the coronaries or the heart structures in the setting of acute nonspecific chest pain with low probability of CAD. MRI Heart Function and Morphology Without IV Contrast Pericarditis, as a cause of chest pain, can be potentially excluded by direct assessment of pericardial thickness on noncontrast MRI heart function and morphology images [41]. Characterization of other myocardial and pericardial conditions would optimally require administration of a gadolinium contrast agent. There is no relevant literature to support the use of MRI as an initial imaging test in the patient with acute nonspecific chest pain with a low probability of CAD. MRI Heart Function and Morphology Without and With IV Contrast Although there has been increasing use of MRI with a contrast agent to document clinically suspected myocarditis in patients who have been ruled out for acute myocardial infarction, these are typically patients who have had elevated troponins and thus would not fall in the low probability category [42,43].