Abstract: A medical imaging device includes a display device; and at least one electronic processor programmed to perform an imaging method including controlling an associated medical imaging device to acquire a dynamic lung image including a time sequence of lung images depicting at least one lung of the patient; separating the dynamic lung image into a dynamic respiration image depicting density changes due to respiration and a dynamic perfusion image depicting density changes due to lung perfusion; at least one of: (i) generating a respiration delay image based on the dynamic respiration image; and (ii) generating a perfusion delay image based on the dynamic lung perfusion image; and displaying the respiration delay image and/or lung perfusion delay image on the display device.

Abstract: A method for making a composite membrane includes the steps of coating a first layer of ionomer on an intermediate support, laminating a dry porous support into the wet first layer of ionomer, impregnating the porous support with ionomer from the coated ionomer layer, optionally drying the impregnated porous support and the first layer of ionomer, coating a second layer of ionomer on the impregnated porous support, drying the second layer of ionomer until most of the solvent is evaporated, and delaminating the composite membrane from the intermediate support. The composite membrane thus obtained includes a porous support impregnated with the ionomer and on each side of the impregnated support a dense ionomer layer.

Abstract: A method for making a composite membrane includes the steps of coating a first layer of ionomer on an intermediate support, laminating a dry porous support into the wet first layer of ionomer, impregnating the porous support with ionomer from the coated ionomer layer, optionally drying the impregnated porous support and the first layer of ionomer, coating a second layer of ionomer on the impregnated porous support, drying the second layer of ionomer until most of the solvent is evaporated, and delaminating the composite membrane from the intermediate support. The composite membrane thus obtained includes a porous support impregnated with the ionomer and on each side of the impregnated support a dense ionomer layer.