A method of using a self-adjusting stent assembly includes estimating body lumen diameter(s) associated with a portion of a body lumen in which a stent assembly will be placed； determining, based on the estimated diameter(s), target expanded stent diameter(s) of the stent assembly which is to be placed in the portion of the body lumen； selecting the stent assembly for stenting the portion of the body lumen, wherein the stent assembly is configured to: expand from an initial to expanded diameters within a range of expanded diameters； wherein the range of expanded diameters is from about 9 mm to about 5.5 mm； and wherein the target expanded stent diameter(s) is/are within the range of expanded diameters； and apply a chronic radial force to a wall that forms the portion of the lumen, wherein the radial force is less than about 0.33 N/mm； and implanting the stent assembly in the portion of the body lumen.
