In Vivo Measurements of T2 Relaxation Time of Mouse Lungs during Inspiration and Expiration.
Leif E DahlbergPaul D HockingsPublished in: PloS one (2016)
The measured T2 in-vivo is affected by diffusion across internal magnetic susceptibility gradients. In the lungs these gradients are modulated by respiration, as verified by calculations. In conclusion the measured T2 was found to be dependent on the size of the alveoli.