Abstract: A percutaneous drainage device for draining a fluid collection located under the skin of a patient is disclosed. The percutaneous drainage device includes a penetration component slidably engaged with a cannula. The penetration component has a piercing end adapted to penetrate tissue of a patient and introduce an open end of the cannula to a subcutaneous fluid collection site. The cannula may be held in place in the patient by an anchoring means. The cannula provides a passage through which a fluid collection may be drained from a patient. The cannula may be in fluid communication with a collection vessel, which collects fluid collection transported away from the subcutaneous fluid collection site.

Abstract: A method and system for generating an output image from a plurality, N, of corresponding input image channels is described. A Jacobian matrix of the plurality of corresponding input image channels is determined. The principal characteristic vector of the outer product of the Jacobian matrix is calculated. The sign associated with the principal characteristic vector is set whereby an input image channel pixel projected by the principal characteristic vector results in a positive scalar value. The output image as a per-pixel projection of the input channels in the direction of the principal characteristic vector is generated.