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Figure 2. (a) Craniocaudal (CC) displacement of the non-tumour bearing hemithorax from deep inspiration to deep expiration, comparison between trueFISP and FLASH sequence. (b) Complete breathing cycle from quiet tidal breathing followed by maximum inspiration and expiration using a trueFISP sequence. Non-tumour bearing hemithorax (–tumour) is compared with the tumour bearing hemithorax (+tumour).