title: Freeze-thaw hysteresis effects in terahertz imaging of biomedical tissues.
abstract: There have recently been several studies published involving terahertz (THz) imaging of frozen biomedical samples. In this paper, we investigate the effects of the freeze-thaw cycle on THz properties of porcine muscle and fat samples. For ordinary freezing, there was a significant change in the THz properties after thawing for muscle tissue but not for fat tissue. However, if snap-freezing was combined with fast-thawing instead of ordinary freezing and ordinary thawing, then the freeze-thaw hysteresis was removed.
authors.affiliation: Department of Electronic Engineering, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China.
authors.forename: Yuezhi
authors.initials: Y
authors.lastname: He
authors.affiliation: Department of Electronic Engineering, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China.
authors.forename: Benjamin S-Y
authors.initials: BS
authors.lastname: Ung
authors.affiliation: Department of Electronic Engineering, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China.
authors.forename: Edward P J
authors.initials: EP
authors.lastname: Parrott
authors.affiliation: Department of Imaging and Interventional Radiology, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China.
authors.forename: Anil T
authors.initials: AT
authors.lastname: Ahuja
authors.affiliation: Department of Electronic Engineering, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China.
authors.forename: Emma
authors.initials: E
authors.lastname: Pickwell-MacPherson
keywords: (170.3880) Medical and biological imaging; (170.6795) Terahertz imaging; (300.6495) Spectroscopy, terahertz