Selective angiocardiography with the exposure of multiple films in rapid sequence in two planes offers many advantages over simple venous angiocardiography. Not only by itself is it a more accurate technique, but, since it depends completely upon the placement of a catheter, the combination of this procedure and cardiac catheterization complement each other and can be performed as one study. In this way, either of the two component parts of the study can be eliminated, if necessary, or augmented and varied in accordance with the particular needs of the particular patient; for example, in a patient suspected of having a valvular pulmonic stenosis, if the withdrawal curve from pulmonary artery to right ventricle is adequate on cardiac catheterization, the angiocardiogram may be eliminated. If, on the other hand, it is impossible to enter the pulmonary artery with the catheter, a selective angiocardiogram will show the thickened valve and make the
DAVIS LA, LEIGHT L, PIRKEY EL. High-Speed Biplane Selective Angiocardiography. AMA Am J Dis Child. 1958;95(3):292–299. doi:10.1001/archpedi.1958.02060050294011
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