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Figure 1 Catheterization laboratory with an Alderson-Rando phantom (A) simulating the patient: position of the tube (B) in undercouch and the image intensifier (C) in overcouch 60°/0° left anterior oblique position. The Diamentor M4 display (D) and the Szintomat 6134 A system (E) were used to measure fluoroscopic dose-area product, applied to the phantom, and the operator's personal dose.