Figure 1From: Feasibility study of electrocardiographic and respiratory gated, gadolinium enhanced magnetic resonance angiography of pulmonary veins and the impact of heart rate and rhythm on study qualityAnatomical relationship of the pulmonary veins to the esophagus. A- Axial slice from a 3D respiratory- and ECG-gated gadolinium-enhanced MRA demonstrating that the esophagus (labeled *) can be difficult to identify on this sequence. B- Axial T1- weighted, fat-saturated 3D-gradient echo sequence from the same patient at a similar level clearly demonstrating the esophagus and its anatomical relations. [Key: AV = azygos vein, Ao = descending thoracic aorta, * = esophagus].Back to article page