Magnetic resonance imaging of the heart

main advantages of magnetic resonance imaging, indications and contraindications for MRI conduct.

cardiac MRI - highly informative method of research, which yields not only thin slices of the heart in different planes, but also a visual 3D-model with the help of three-dimensional reconstruction, as well as to carry out very precise measurements of the volume of the heart chambers, to track the dynamics of change in the thicknesswalls and various hemodynamic blood flow.Furthermore, it is possible, without subjecting the patient to ionizing radiation, and to carry out angiography to assess the contractility of the cardiac muscle.

Typically, MRI resort in cases where other methods (ultrasound, CT) can not make an accurate diagnosis or the patient can not be exposed to ionizing radiation (eg pregnant women).And unlike other methods of investigation MRI can evaluate the work of the heart in real time and without imposing projection of bony structures of the chest.Due to its high resolution MRI allows to

capture the smallest details (not exceeding a few millimeters) and clearly capture the difference between the different soft tissue structures.

If necessary, a more detailed study of the state of blood flow carried

additional contrasting

using special water-soluble contrast agents based on mineral gadolinium.These substances are not toxic and do not cause side effects (unlike iodinated radiopaque agents), but because such a study is easily tolerated and poses no threat to their lives.

most frequent indications for MRI of the heart are:

  • non-valvular congenital heart defects (such as defects in the atrial or ventricular septal anomalies of origin of (transposition) of the main arteries, etc.),
  • diagnosis of thrombosis, andand primary and secondary heart tumor and surrounding tissue (myxoma, fibroma, lipoma and lipomatosis atrial septum, angiosarcoma, metastatic tumors),
  • cysts pericardium, pericardial effusion,
  • need to assess the changes and the contractility of the heart after myocardial infarction (aneurysmal expansionthe left ventricle, the thinning of its walls, the size of scars and sclerotic changes, etc.), as well as after surgery,
  • identify cardiomyopathy with an estimate of the degree of its severity,
  • main diagnosis of vascular disease (uncomplicated and dissecting aortic aneurysm, the aorta,atherosclerosis, etc.),
  • assessment of pulmonary vascular bed,
  • assessment of coronary blood flow after coronary bypass surgery and other operations, evaluation of patency of coronary bypass grafts.

Contraindications to MRI of the heart:

  • presence in the patient's body electrically, magnetically and mechanically active implants (ferromagnetic or electronically controlled active devices, insulin pumps, artificial pacemakers, etc.),
  • availabilitymetal fragments in the eye and hemostatic clips in the brain and spinal cord, steel or a similar wire / wire / needles, pins, artificial joints, non-removable dental prosthesis, gunshot wounds,
  • pregnancy (first 3 months of pregnancy),
  • claustrophobia,
  • convulsions,
  • severe chronic diseases in the stage of severe decompensation,
  • intolerance contrast agents

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