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Figure 1. Continuous measurement of craniocaudal (CC) displacement of the thorax from deep inspiration to deep expiration using a trueFISP (3 images s–1, images above the time line) and a FLASH-sequence (10 images s–1, images below the time line) in a patient with a solitary stage I non-small cell lung cancer (NSCLC) within the left hemithorax. A significant decrease of the motion of the left hemithorax in comparison with the right side is demonstrated. Using the trueFISP sequence the tumourous areas exhibit a higher signal to noise ratio (SNR).
