Technical developments in postprocessing of paediatric airway imaging
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CT postprocessing allows more scan information to be viewed at one time allowing an accurate diagnosis to be made more efficiently, and is particularly important in paediatric practice where invasive clinical diagnostic tools can be replaced or at least assisted by modern postprocessing techniques. Four visualization techniques in clinical use are described in this paper including the advantages and disadvantages of each: multiplanar reformation, maximum and minimum intensity projections, shaded surface display and volume rendering. Volume-rendered internal visualization in the form of virtual endoscopy is also discussed. In addition, the clinical usefulness in paediatric practice of demonstrating airway compression and its causes are discussed. Advanced postprocessing techniques that must still find their way from the biomedical research environment into clinical use are introduced with specific reference to computer-aided diagnosis.
KeywordsMinimum intensity projections Multiplanar reconstruction Volume rendering Computer aided diagnosis Paediatric
- 14.Mori K, Hasegawa J, Toriwaki J et al (1996) Recognition of bronchus in three-dimensional X-ray CT images with application to virtualized bronchoscopy system. In: Proceedings of the 13th International Conference on Pattern Recognition, vol 3. Vienna, Austria. IEEE Computer Society, Washington DC, pp 528–532Google Scholar
- 18.Irving B, Taylor P, Todd-Pokropek A (2009) 3D segmentation of the airway tree using a morphology based method. In: Brown M, de Bruijne M, van Ginneken B et al (eds) Proceedings of the second international workshop on pulmonary image analysis. London, pp 297–307Google Scholar
- 19.Lo P, van Ginneken B, Reinhardt J et al (2009) Extraction of airways from CT. In: Brown M, de Bruijne M, van Ginneken B et al (eds) Proceedings of the second international workshop on pulmonary image analysis. London, pp 175–189Google Scholar
- 20.Irving B, Goussard P, Gie R et al (2011) Segmentation of obstructed airway branches in CT using airway topology and statistical shape analysis. In: Proceedings of the eighth IEEE international symposium on biomedical imaging: from nano to macro. IEEE, Piscataway, NJ, pp 447–451Google Scholar