MAGNETIC RESONANCE IMAGING 3

MAGNETIC RESONANCE IMAGING – Purpose, Indications and Client Preparation

Magnetic resonance imaging (MRI) is one of the most expensive noninvasive diagnostic options; a verity of data may be obtained in a single image. It provides the best information on chamber, size, wall motion, valvular function and great vessel blood flow without the use of ionizing radiation

PURPOSE

  • MRI is commonly used for examination of the aorta and detection of tumors, aneurysms, masses, cardiomyopathies and pericardial disease
  • MRI can show the heart beating and the blood flowing in any direction
  • All standard quantitative functional indices, except transstenotic gradients can be obtained from an MRI study

INDICATIONS

  • Normal morphology and structural changes
  • Wall thickness, chamber volumes, valve areas, vessel cross-section and extent, location and size of lesions
  • Global and regional biventricular function, including ejection fraction, stroke volume and cardiac output
  • Blood flow quantifications within vessels over the cardiac cycle
  • Tissue characterization of paracardiac and intracardiac masses, pericardiac masses, pericardial diffusion and myocardial infarction

CLIENT PREPARATION

  • Inform the client that the test is noninvasive
  • Provide written information about the test, if available
  • Explain to client that he will lying in  one position for a long period
  • Screen the client for claustrophobia and anxiety; these can be reduced by premeditation with an antianxiety drug
MAGNETIC RESONANCE IMAGING – Purpose, Indications and Client Preparation
MAGNETIC RESONANCE IMAGING – Purpose, Indications and Client Preparation

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