The use of 3 novel tools available for the diagnosis and treatment in cystic fibrosis are described here. 1) The lung clearance index is a sensitive method which can detect functional impairment in the first months after birth. 2) Detailed morphological analyses of the lung can be performed with the new MRI sequences, without any contrast medium or risk of radiation. The analysis of functional MRI data (perfusion, diffusion, ventilation, inflammation) will be possible, and these data will be correlated to morphological data. The exploration of other organs such as the sinuses, liver and abdomen during the same examination represents another definite advantage. 3) Organoïds are a good example of personalized medicine. This tool explores CFTR function and treatment response in each of the 2000 or so known CFTR mutations. These tests are limited to specialized centers, mostly within a research context. However, their generalization after standardization is expected in the near future.
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