Cardiovascular Medicine Book

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Cardiac MRI

Aka: Cardiac MRI, Coronary Angiography with MRI, MR Angiogram in Coronary Artery Disease, Coronary MRA, MR Coronary Angiogram
  1. Indications
    1. Heart functional studies
      1. Noninvasive Coronary Artery stenosis evaluation
      2. Right and left ventricular function evaluation
      3. Great Vessel evaluation (aorta and vena cava)
      4. Anomalous Coronary Artery evaluation
    2. Heart structural studies
      1. Cardiac mass evaluation
      2. Congenital Heart Disease evaluation
  2. Efficacy: Coronary MRA
    1. Test Specificity: 58% (42% False Positive Rate)
    2. Test Sensitivity
      1. Overall sensitivity for >50% coronary stenosis: 88%
      2. Clinically Significant disease: 93%
        1. Left main Coronary Artery Disease
        2. Three vessel Coronary Artery Disease
  3. Advantages
    1. Noninvasive
    2. Relatively sensitive for significant disease
      1. But misses 7% of these cases
  4. Disadvantages
    1. Long study (average of 70 minutes, may be >2 hours)
    2. High False Positive Rate (42%)
  5. Interpretation: Findings suggestive of coronary disease
    1. Coronary stenosis and myocardial perfusion
    2. Myocardial metabolism
    3. Wall motion abnormalities on stress testing
    4. Differentiate infarcted from viable Myocardium
      1. Uses delayed hyperenhancement imaging
  6. References
    1. Kim (2001) N Engl J Med 345:1863-9 [PubMed]
    2. Nagel (2003) Circulation 108:432-7 [PubMed]

Magnetic Resonance Imaging (MRI) of Heart (C0412692)

Concepts Diagnostic Procedure (T060)
SnomedCT 241620005
CPT 75565, 75557, 75561
English Cardiac MRI (procedure), Magnetic resonance imaging of heart (procedure), MRI scan cardiac, cardiac MRI, magnetic resonance imaging of heart (procedure), magnetic resonance imaging of heart, MRI cardiac, MRI heart, heart MRI, Magnetic Resonance Imaging (MRI) of Heart, Cardiac MRI, MRI of heart, Magnetic resonance imaging of heart
Spanish resonancia magnética cardíaca (procedimiento), resonancia magnética cardíaca, resonancia magnética de corazón
Sources
Derived from the NIH UMLS (Unified Medical Language System)


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