[Opacification of the aortic arch using a long needle-catheter. Modification of the catheter and precautions to be taken (author's transl)].

The authors modified the long needle-catheter used by Amplatz and Stocks, by adding lateral openings. The modified needle-catheter was used to study the aorta and its branches using the left translumbar approach. The high rate of blood flow (30 to 34 ml/s) gave excellent opacification of the thoracic and abdominal aortas, and the lower limbs.