Digital subtraction fluoroscopic image during cannulation of the right IJV. Digital subtraction fluoroscopic image during cannulation of the right IJV showing the guidewire (Arrow) passing to the left thoracic cavity instead of the normal route directly towards the right atrium. After contrast venography and 3d-reconstruction, it was evident that the guidewire traveled through the right brachiocephalic vein, which is directly connected with the isolated PLSVC.