title: FAST: framework for heterogeneous medical image computing and visualization.
abstract: OBJECTIVE
  Computer systems are becoming increasingly heterogeneous in the sense that they consist of different processors, such as multi-core CPUs and graphic processing units. As the amount of medical image data increases, it is crucial to exploit the computational power of these processors. However, this is currently difficult due to several factors, such as driver errors, processor differences, and the need for low-level memory handling. This paper presents a novel FrAmework for heterogeneouS medical image compuTing and visualization (FAST). The framework aims to make it easier to simultaneously process and visualize medical images efficiently on heterogeneous systems.
  
  
  METHODS
  FAST uses common image processing programming paradigms and hides the details of memory handling from the user, while enabling the use of all processors and cores on a system. The framework is open-source, cross-platform and available online.
  
  
  RESULTS
  Code examples and performance measurements are presented to show the simplicity and efficiency of FAST. The results are compared to the insight toolkit (ITK) and the visualization toolkit (VTK) and show that the presented framework is faster with up to 20 times speedup on several common medical imaging algorithms.
  
  
  CONCLUSIONS
  FAST enables efficient medical image computing and visualization on heterogeneous systems. Code examples and performance evaluations have demonstrated that the toolkit is both easy to use and performs better than existing frameworks, such as ITK and VTK.
authors: Department of Computer and Information Science, Norwegian University of Science and Technology, Sem Saelandsvei 7-9, 7491, Trondheim, Norway. smistad@idi.ntnu.no.|SINTEF Medical Technology, Trondheim, Norway. smistad@idi.ntnu.no.
authors: Erik
authors: E
authors: Smistad
authors: Department of Computer and Information Science, Norwegian University of Science and Technology, Sem Saelandsvei 7-9, 7491, Trondheim, Norway.
authors: Mohammadmehdi
authors: M
authors: Bozorgi
authors: Department of Computer and Information Science, Norwegian University of Science and Technology, Sem Saelandsvei 7-9, 7491, Trondheim, Norway.|SINTEF Medical Technology, Trondheim, Norway.
authors: Frank
authors: F
authors: Lindseth
mesh_terms: D000465:Algorithms; D003199:Computer Systems; D003952:Diagnostic Imaging; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000295:instrumentation / Q000379:methods*
keywords: Computing; GPU; Heterogeneous; Image; Medical; OpenCL; Parallel; Visualization