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In the normal circulation, deoxygenated blood comes into the right heart and passes through the pulmonary circulation to become oxygenated. Then oxygenated blood goes through the left heart to the systemic circulation. An abnormal communication between two heart chambers resulting in an intracardiac (IC) shunt may take place from systemic to pulmonary circulation (left to right) or from pulmonary to systemic circulation (right to left) or may be bidirectional.
KeywordsCatheter Syringe Radionuclide
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