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Insights into Imaging

Table 2 Mapping tools and estimated relevance to the seven wastes identified in the Toyota production system as proposed by Hines and Rich [13]

From: Process mapping of PTA and stent placement in a university hospital interventional radiology department

Waste (in the Toyota production system)

Mapping tool

Process activity mapping

Supply chain response matrix

Production variety funnel

Quality filter mapping

Demand amplification mapping/Forrester effect mapping

Decision point analysis

Physical structure

a. Volume

b. Value

Overproduction

L

M

 

L

M

M

  

Waiting

H

H

L

 

M

M

  

Transport

H

     

L

 

Inappropriate processing

H

 

M

  

L

  

Unnecessary inventory

M

H

M

 

H

M

L

 

Unnecessary motion

H

L

      

Defects

L

  

H

    

Overall structure

L

L

M

L

H

M

H

 
  1. H = High correlation and usefulness
  2. M = Medium correlation and usefulness
  3. L = Low correlation and usefulness
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