title: Aneurysm coil embolization: cost per volumetric filling analysis and strategy for cost reduction.
abstract: BACKGROUND
  One of the primary device expenditures associated with the endovascular treatment of aneurysms is that of detachable coils. Analyzing the cost efficiency of detachable coils is difficult, given the differences in design, implantable volume, and the presence of additives. However, applying a volume per cost metric may provide an index analogous to unit price found in grocery stores.
  
  
  METHODS
  The price information for 509 different coils belonging to 31 different coil lines, available as of September 2013, was obtained through the inventory management system at the study site, and normalized to the price of the least expensive coil. Values were used to calculate the logarithmic ratio of volume over cost.
  
  
  RESULTS
  Operator choice among coil sizes can vary the material costs by five-fold in a hypothetical aneurysm.
  
  
  CONCLUSIONS
  The difference in coil costs as a function of cost per volume of coil can vary tremendously. Using the present pricing algorithms, using the longest available length at a particular helical dimension and system yields improved efficiency.
authors: Case Western Reserve University Medical School, Medical Science Training Program, Cleveland, Ohio, USA.
authors: Charlie
authors: C
authors: Wang
authors: The Clinical Neuroscience Institute, Miami Valley Hospital, Dayton, Ohio, USA.
authors: Esteban Cheng
authors: EC
authors: Ching
authors: Cerebrovascular Center, Neurological Institute, Cleveland Clinic, Dayton, Ohio, USA.
authors: Ferdinand K
authors: FK
authors: Hui
mesh_terms: D001807:Blood Vessel Prosthesis / Q000191:economics*; D017046:Cost Savings / Q000379:methods*; D004621:Embolization, Therapeutic / Q000191:economics* / Q000295:instrumentation; D006801:Humans; D002532:Intracranial Aneurysm / Q000191:economics / Q000628:therapy
keywords: Coil; Economics