title: Update on technology diffusion.
abstract: Magnetic resonance imaging (MRI) continues to expand in influence as a diagnostic tool, with the number of units installed in the United States growing rapidly, according to an AHA technology assessment report. Technology assessment is being used more and more in decision making regarding the use of MRI and other diagnostic technologies. Two perspectives on the phenomenon are explored.
authors.affiliation: American Hospital Association.
authors.forename: H C
authors.initials: HC
authors.lastname: Alder
authors.forename: S
authors.initials: S
authors.lastname: Hoppszallern
authors.forename: C
authors.initials: C
authors.lastname: Hughes
authors.forename: R A
authors.initials: RA
authors.lastname: Zimmerman
mesh_terms: D000573:American Hospital Association; D004059:Diffusion of Innovation; D008279:Magnetic Resonance Imaging / Q000295:instrumentation; D011682:Purchasing, Hospital; D013673:Technology Assessment, Biomedical; D014481:United States