TGA greenlights first non-contrast respiratory imaging technology

ASX-listed 4DMedical has secured Therapeutic Goods Administration (TGA) approval for its CT:VQ technology enabling commercial deployment across Australia.

Unlike conventional nuclear medicine ventilation-perfusion imaging, CT:VQ does not require radiotracers, injected contrast agents, specialised cameras, or dedicated nuclear medicine infrastructure. It uses scans produced from existing CT imaging resources to generate functional lung information.

“TGA approval marks an important milestone for respiratory diagnostics in our home market,” said Andreas Fouras, Founder, Managing Director and CEO of 4DMedical. “As the first and only, non-contrast, CT-based ventilation-perfusion imaging solution, CT:VQ gives healthcare providers detailed, functional lung information using infrastructure already available throughout the healthcare system. Plus, Australia’s high CT scanner density makes an attractive market for broad implementation.”

The CT:VQ approval comes as healthcare systems increasingly seek scalable and affordable technologies that expand diagnostic capabilities by leveraging existing imaging resources.

Using standard CT infrastructure already available across Australia, CT:VQ can broaden access to functional lung imaging in metropolitan, regional, and rural settings. The technology can be particularly valuable for both facilities that lack onsite nuclear medicine services, and for hospitals and imaging centres that do, by helping preserve nuclear medicine capacity for their other diagnostic and therapeutic services.

With the addition of advanced AI capabilities from its 2023 acquisition of Imbio and 2026 acquisition of contextflow, 4DMedical continues to push the boundaries of medical imaging to redefine how respiratory disease is understood and treated.

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