A Long Road for Tomosynthesis


I was fortunate to participate in a team led by Dr. Richard Webber at Wake Forest University in the 1990’s. We had high hopes for the technology we developed, known as Tuned Aperture Computed Tomography (TACT).

TACT extended prior work in tomosynthesis to establish new referencing schemes, reconstruction algorithms, and hardware designs. The goal of the work was to generate three dimensional information using customized apertures and lower radiation dosages, leading to systems that could be customized to the task at hand for greatest efficiency and effectiveness.

Most of the medical imaging technology from that time to the present focused on CT and MRI. The tomosynthetic approach was a bit of a hard sell during those years. But more recently we’re elated to see Digital Breast Tomosynthesis (DBT) taking its place in the standard tool set of radiologists. This confirms that there is a place for the tomosynthetic approach.

For additional reading, search on “tuned aperture computed tomography”. You’ll find that applications in dentistry are far-reaching. Also search on “digital breast tomosynthesis” to see how far the technology has evolved.

(Original post on August 2, 2016)


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