This study aimed at evaluating hybrid multispectral optoacoustic tomography/ultrasound for imaging of thyroid disorders, including Graves' disease and thyroid nodules. The functional biomarkers and tissue parameters deoxygenated hemoglobin, oxygenated hemoglobin, total hemoglobin, saturation of hemoglobin, fat content, and water content were analyzed in thyroid lobes affected by Graves' disease ( = 6), thyroid lobes with healthy tissue ( = 8), benign thyroid nodules ( = 13), and malignant thyroid nodules ( = 3). In Graves' disease, significantly higher deoxygenated hemoglobin (3.18 ± 0.52 vs. 2.13 ± 0.62; = 0.0055) and total hemoglobin (8.34 ± 0.88 vs. 6.59 ± 1.16; = 0.0084) and significantly lower fat content (0.64 ± 0.37 vs. 1.69 ± 1.25; = 0.0293) were found than in healthy controls. Malignant thyroid nodules showed significantly lower saturation of hemoglobin (55.4% ± 2.6% vs. 60.8% ± 7.2%; = 0.0393) and lower fat content (0.62 ± 0.19 vs. 1.46 ± 0.87; = 0.1295) than benign nodules. This pilot study showed the applicability and the potential of hybrid multispectral optoacoustic tomography/ultrasound to semiquantitatively provide tissue characterization and functional parameters in thyroid disorders for improved noninvasive diagnostics of thyroid diseases.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6785793PMC
http://dx.doi.org/10.2967/jnumed.118.222174DOI Listing

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