Volume 13, Issue 9 e202000040
FULL ARTICLE

Hyperspectral imaging and characterization of allergic contact dermatitis in the short-wave infrared

Tommy Du

Tommy Du

Department of Radiology, Washington University School of Medicine, St. Louis, Missouri, USA

Tommy Du, Deependra K. Mishra and Leonid Shmuylovich authors contributed equally.Search for more papers by this author
Deependra K. Mishra

Deependra K. Mishra

Department of Radiology, Washington University School of Medicine, St. Louis, Missouri, USA

Tommy Du, Deependra K. Mishra and Leonid Shmuylovich authors contributed equally.Search for more papers by this author
Leonid Shmuylovich

Leonid Shmuylovich

Department of Radiology, Washington University School of Medicine, St. Louis, Missouri, USA

Division of Dermatology, Washington University School of Medicine, St. Louis, Missouri, USA

Tommy Du, Deependra K. Mishra and Leonid Shmuylovich authors contributed equally.Search for more papers by this author
Andy Yu

Andy Yu

Department of Radiology, Washington University School of Medicine, St. Louis, Missouri, USA

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Helena Hurbon

Helena Hurbon

Department of Radiology, Washington University School of Medicine, St. Louis, Missouri, USA

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Steven T. Wang

Steven T. Wang

Department of Radiology, Washington University School of Medicine, St. Louis, Missouri, USA

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Mikhail Y. Berezin

Corresponding Author

Mikhail Y. Berezin

Department of Radiology, Washington University School of Medicine, St. Louis, Missouri, USA

Correspondence

Mikhail Y. Berezin, Department of Radiology, Washington University School of Medicine, 4515 McKinley Ave, St. Louis, MO 63110.

Email: [email protected]

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First published: 16 May 2020
Citations: 13

Funding information: National Institutes of Health, Grant/Award Numbers: 1S10RR03162, R01 CA208623; National Science Foundation, Grant/Award Numbers: IIA-1355406, PFI-TT 1827656

Abstract

Short-wave infrared hyperspectral imaging is applied to diagnose and monitor a case of allergic contact dermatitis (ACD) due to poison ivy exposure in one subject. This approach directly demonstrates increased tissue fluid content in ACD lesional skin with a spectral signature that matches the spectral signature of intradermally injected normal saline. The best contrast between the affected and unaffected skin is achieved through a selection of specific wavelengths at 1070, 1340 and 1605 nm and combining them in a pseudo-red-green-blue color space. An image derived from these wavelengths normalized to unaffected skin defines a “tissue fluid index” that may aid in the quantitative diagnosis and monitoring of ACD. Further clinical testing of this promising approach towards disease detection and monitoring with tissue fluid content quantification is warranted.image

CONFLICT OF INTEREST

M.B. is the founder of HSpeQ LLC, a hyperspectral imaging software company.

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