What are the advantages of helical CT in emphysema imaging?

Updated: Mar 13, 2019
  • Author: Ali Nawaz Khan, MBBS, FRCS, FRCP, FRCR; Chief Editor: Eugene C Lin, MD  more...
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Answer

Answer

Because of the great variability of the machines, with single helical scanners and several models of multisection CT scanners, no technique has been standardized, and the detection rate of emphysema varies with the technique. Even with thick sections, the detection and quantification of emphysema is better than it is with conventional radiography and pulmonary function tests. The great advantage of helical CT is that the whole chest can be scanned in a single acquisition of less than 20 seconds.


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