Read the image. Which view, which catheter, where is it?

Each image is taken at the angle in its range where the catheters overlap least, then centred and magnified on them. “Show both views” puts a right and a left anterior oblique view side by side. Positions are built from one atlas anatomy (BodyParts3D), so real patients will look different. A real study confirms position in two orthogonal views and with electrograms.