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Infrared thermography in the detection of brown adipose tissue in humans.

Jang C, Jalapu S, Thuzar M, Law PW, Jeavons S, Barclay JL, Ho KK - Physiol Rep (2014)

Bottom Line: A Δtemp of 0.9°C conferred a positive predictive value of 85% for SCV BAT, superior to that of SCV temperature.In conclusion, the Δtemp is significantly and consistently greater in BAT-positive subjects.The Δtemp quantified by IRT after 2-h cooling shows promise as a noninvasive convenient technique for studying SCV BAT function.

View Article: PubMed Central - PubMed

Affiliation: School of Medicine, University of Queensland, Brisbane, Qld, Australia Department of Endocrinology and Diabetes, Princess Alexandra Hospital, Brisbane, Qld, Australia.

No MeSH data available.


Upper panel shows Individual paired plots in PET‐positive (left panels) and PET‐negative (right panels) subjects studied before and after 2 h of cooling. The temperature difference (∆temp) between supraclavicular (left and right) and chest areas was measured. Each subject is denoted by a different symbol. The same symbols are used for subjects studied on a second occasion.
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fig02: Upper panel shows Individual paired plots in PET‐positive (left panels) and PET‐negative (right panels) subjects studied before and after 2 h of cooling. The temperature difference (∆temp) between supraclavicular (left and right) and chest areas was measured. Each subject is denoted by a different symbol. The same symbols are used for subjects studied on a second occasion.

Mentions: At baseline before cooling, in the BAT‐positive group, the mean SCV temperatures on both sides were significantly higher than the control chest temperature (Fig. 1). Similarly, in the BAT‐negative group, the mean SCV temperatures on both sides were also significantly higher than mean chest temperature. ∆temp was greater in the BAT positive than in the negative group on the left (1.2 ± 0.2 vs. 0.6 ± 0.1°C, P =0.04) and right sides (1.0 ± 0.2 vs. 0.5 ± 0.01°C, P =0.04) (Fig. 2). The ∆temp was significantly greater on the left than on the right side (P =0.004) in the BAT‐positive group.


Infrared thermography in the detection of brown adipose tissue in humans.

Jang C, Jalapu S, Thuzar M, Law PW, Jeavons S, Barclay JL, Ho KK - Physiol Rep (2014)

Upper panel shows Individual paired plots in PET‐positive (left panels) and PET‐negative (right panels) subjects studied before and after 2 h of cooling. The temperature difference (∆temp) between supraclavicular (left and right) and chest areas was measured. Each subject is denoted by a different symbol. The same symbols are used for subjects studied on a second occasion.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4255799&req=5

fig02: Upper panel shows Individual paired plots in PET‐positive (left panels) and PET‐negative (right panels) subjects studied before and after 2 h of cooling. The temperature difference (∆temp) between supraclavicular (left and right) and chest areas was measured. Each subject is denoted by a different symbol. The same symbols are used for subjects studied on a second occasion.
Mentions: At baseline before cooling, in the BAT‐positive group, the mean SCV temperatures on both sides were significantly higher than the control chest temperature (Fig. 1). Similarly, in the BAT‐negative group, the mean SCV temperatures on both sides were also significantly higher than mean chest temperature. ∆temp was greater in the BAT positive than in the negative group on the left (1.2 ± 0.2 vs. 0.6 ± 0.1°C, P =0.04) and right sides (1.0 ± 0.2 vs. 0.5 ± 0.01°C, P =0.04) (Fig. 2). The ∆temp was significantly greater on the left than on the right side (P =0.004) in the BAT‐positive group.

Bottom Line: A Δtemp of 0.9°C conferred a positive predictive value of 85% for SCV BAT, superior to that of SCV temperature.In conclusion, the Δtemp is significantly and consistently greater in BAT-positive subjects.The Δtemp quantified by IRT after 2-h cooling shows promise as a noninvasive convenient technique for studying SCV BAT function.

View Article: PubMed Central - PubMed

Affiliation: School of Medicine, University of Queensland, Brisbane, Qld, Australia Department of Endocrinology and Diabetes, Princess Alexandra Hospital, Brisbane, Qld, Australia.

No MeSH data available.