NeuroLogica’s Photon Counting CT

Samsung’s NeuroLogica subsidiary announced the FDA 510(k) clearance of its photon counting-based OmniTom Elite PCD, significantly expanding the mobile head/neck CT system’s diagnostic potential and adding to photon counting technology’s recent momentum.

About the OEPCD – The OmniTom Elite with PCD is now available as an optional upgrade (including field upgrades), swapping the standard OmniTom Elite’s energy integrating detector (EID) for a single-source cadmium telluride-based photon counting detector. Beyond the OmniTom Elite with PCD’s imaging advantages (2x higher spatial resolution, spectral CT images at multiple energy levels), all other key features are shared between the two configurations (16 row, 40cm bore, 30cm FoV).

The Photon Counting Race – NeuroLogica’s photon counting CT launch comes about six months after Siemens Healthineers’ NAEOTOM Alpha became the first FDA-cleared PCCT. The OmniTom Elite with PCD’s launch also comes amid major R&D and M&A efforts from essentially all major OEMs, as they compete for photon counting CT leadership. 

The Photon Counting Advantage – Those efforts seem warranted, as PCCTs produce far higher quality images and provide far more imaging data, while potentially allowing lower radiation exposure and contrast dosage. For the OmniTom Elite’s head and neck applications, that could mean improved visualization and segmentation of bones, blood clots, plaques, hemorrhages, and intracranial tumors.

NeuroLogica’s Next Steps – Even if photon counting’s advantages are widely agreed upon, its potential clinical applications are still being explored. Because of that, NeuroLogica’s announcement emphasized ongoing research efforts to evaluate the OmniTom Elite with PCD’s performance with certain patients (e.g. post-trauma and post-surgical patients) and its plans to develop the mobile PCCT’s “full potential.”

The Takeaway

The OmniTom Elite PCD’s head/neck imaging design (vs. whole body) and use of a single-source detector (vs. dual) make it quite different from the other PCCTs being developed, but it’s launch is still a notable milestone for photon counting CT technology. It’s also a testament to Samsung/NeuroLogica’s R&D efforts, coming 4.5 years after showing the detector at RSNA 2017, and reaching the market before most of the biggest CT players released their own PCCTs.

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