12. Imaging cystic fibrosis lung disease with MRI 188 Mark O. Wielpütz and Hans-Ulrich Kauczor 13. The cardiopulmonary unit 207 Andrew J. Swift 14. Measurement of pulmonary structure and function 216 Miranda Kirby, Pierre Lane and Harvey O. Coxson 15. Regulatory perspective on the use of lung imaging in drug development 233 Laura Fregonese 16. Risks of thoracic CT 253 Jonathan G. Goldin and Katrina Beckett 17. Safety issues in MRI 263 Alex Frydrychowicz and Oliver Wieben