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Novel algorithm for m~ving target imaging and trajectory computation using a two-receiver radar are presented. The range-bin alignment is implemented with an adaptive method using the envelope correlation feature of different returns and the angular trajectory equation is solved using a linear least squares method combined with a unique phase-unwrapping technique. The angular positiom of the synthetic array elements are determined from the trajectory computation. Three target umdels moving along a perturbed straight line are used to verify the proposed algorithns.

Two cases of life-threatening recurrent hemoptysis occurring 10 years after a Fontan operation are presented. Bleeding from aortopulmonary collateral vessels was responsible for this complication in both cases, and the importance of systematic selective angiography of all potential origins of such abnormal vessels, including those arising from the abdominal aorta, is highlighted. Although coil embolization of aortopulmonary collateral vessels is usually definitive, pulmonary lobectomy may be necessary. The present report demonstrates, for the first time, that rescue extracorporeal membrane oxygenation support can be used as a bridge to surgery in case of severe uncontrollable hemoptysis in such cases.