Contrast enhanced MR angiography in pulmonary sequestration

Objective To evaluate the feasibility of contrast enhanced three-dimensional (3D) magneti c resonance angiography (MRA) in identifying the systemic blood supply in pulmon ary sequestration. Methods Three patients who were suspected of pulmonary sequestration were examined by co ntrast enhanced 3D MRA.MR images were compared with surgical findings. Results Contrast enhanced 3D MRA clearly demonstrated systemic arteries from the descend ing thoracic aorta supplying the basilar segments of the lower lobe in each case .Pulmonary veins from these segments, which drained into the left atrium in tw o cases, were also detected.MRA images were consistent with those observed in surgery. Conclusion Contrast enhanced 3D MRA allows accurate diagnosis of pulmonary sequestration an d may obviate the need for more invasive investigations.