A method for manufacturing a vascular device that includes disposing a vascular device over an expanding member. The device includes a body having a substantially uniform porosity that is adapted to change by adjusting an axial length of the body. The method also includes adhering a portion of the body to the expanding member such that upon radial expansion of the expanding member, adherence between the body portion and the expanding member reduces a porosity of the body within the body portion more than the body porosity is reduced outside the portion.