RSNA 2017 Ultrasound Preview

Photoacoustic US offers option to thyroid biopsy

By Kate Madden Yee, staff writer

November 7, 2017 --

Tuesday, November 28 | 3:50 p.m.-4:00 p.m. | SSJ21-06 | Room S403A
In this talk, researchers from the University of Rochester will discuss how a transducer that combines photoacoustic and ultrasound technology could offer a viable alternative to fine-needle aspiration biopsy of the thyroid.

Among thyroid cancer screening techniques, ultrasound followed by fine-needle aspiration biopsy is the most widely used. But about 5% of these biopsies are inconclusive, according to a team led by Dr. Vikram Dogra. Using thyroid tissue samples, Dogra's group conducted a study to determine whether a hybrid multispectral photoacoustic and ultrasound imaging system could detect and characterize thyroid lesions.

The researchers developed an ultrasound transducer that included a photoacoustic light delivery system and an acoustic lens that allowed for real-time frontal-plane imaging of the tissue. The technology's specificity for detecting and characterizing thyroid lesions was greater than 96%, leading the group to conclude that combining photoacoustic imaging with ultrasound could be an effective way to locate these nodules and determine whether they are cancerous or benign.

Last Updated np 11/6/2017 12:19:45 AM