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Abstract #1189

Bi-exponential T1ρ relaxation calculation of parotid glands in vivo at 3T

Huimin Zhang1, Qiyong Ai1, Queenie Chan2, Ann D. King1, and Weitian Chen1
1Department of Imaging and Interventional Radiology, The Chinese University of Hong Kong, Hong Kong, Hong Kong, 2Philips Healthcare, Hong Kong, Hong Kong

T relaxation, known as the spin‐lattice relaxation time in the rotating frame, is sensitive to molecular interactions including dipolar interactions, chemical exchange, and diffusion. T is often measured by mono-exponential relaxation models. Bi-exponential T relaxation have been previously observed in muscle, cartilage, menisci and brain. We report our observation of bi-exponential T relaxation in parotid glands.

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