#United States #Menlo Park #AI Imaging #Subtle Medical #SubtleHD™

SubtleHD™(PET) Gains FDA Approval for Transformative Imaging

In a significant advancement for medical imaging, Subtle Medical has announced that its cutting-edge technology, SubtleHD™(PET), has attained clearance from the FDA. This next-generation software is designed to enhance the quality of PET images and significantly accelerate imaging workflows for healthcare providers using PET/CT and PET/MR systems. This innovation supports the use of all FDA-approved radiotracers, which is crucial as the demand for PET scans continues to rise globally.

The Growing Demand for PET Imaging

With approximately 4.5 million PET scans conducted annually around the globe, the sector is experiencing rapid growth. An increase in the utilization of new tracers and enhanced theranostic workflows is driving this trend. Recent industry insights reveal that 67% of PET imaging facilities anticipate higher patient volumes over the next year. Consequently, the challenge for health systems lies in improving operational processes, expanding patient access, and maximizing the performance of existing scanners.

Expanding Market Opportunities

The recent FDA clearance notably broadens Subtle Medical's footprint within the PET imaging market. The SubtleHD™(PET) software is engineered to broaden its appeal among imaging providers by facilitating the use of advanced radiotracers and supporting theranostic programs. The software aims to optimize the scanner capabilities of health systems that manage their own cyclotrons.

Building on the existing success of SubtlePET™, which has been successfully integrated into numerous scanners worldwide, SubtleHD™(PET) introduces a more advanced architecture based on state-of-the-art AI modeling. This innovative design delivers superior performance in image enhancement, enhances the accuracy of SUVmax quantitation, and ensures compatibility with all FDA-approved radiotracers. This includes newer molecular imaging agents that go beyond the traditional 18F-FDG imaging techniques.

Advanced Features for Enhanced Imaging

One of the groundbreaking facets of SubtleHD™(PET) is its validation across a broad range of low-count PET acquisitions. Radiologists can adjust the level of denoising according to their preferences, allowing greater control over the image quality. Moreover, the software utilizes anatomical CT data to further enhance the reconstruction quality of PET images, providing consistent quantitative results. This multifaceted approach significantly improves the imaging process.

Ajit Shankaranarayanan from Subtle Medical highlights the ongoing challenges faced by healthcare providers, “PET imaging demand continues to grow globally, but providers remain constrained by scanner capacity, long scan times, and operational inefficiencies.” The introduction of SubtleHD™(PET) aims to alleviate these burdens, paving the way for enhanced throughput, increased revenue generation, better patient access, and improved value from existing PET infrastructure. Notably, patients can benefit from shorter PET exams, which may reduce discomfort, enhancing the overall imaging experience.

A Vision for the Future

SubtleHD™(PET) is not just a solitary innovation; it is a part of Subtle Medical's expanding multi-modality AI imaging portfolio, which encompasses MRI, PET, and CT technologies. As healthcare systems increasingly seek scalable AI solutions that easily integrate with existing infrastructures, Subtle Medical is on a path to develop a comprehensive AI Imaging Hub. The vision encompasses accelerating, enhancing, and streamlining imaging workflows across various modalities, scanners, and health systems globally. The ultimate goal is to establish a unified AI infrastructure for medical imaging, empowering providers to boost operational efficiency, standardize imaging quality, and expand patient access, whilst seamlessly scaling AI adoption across medical institutions.

About Subtle Medical

As a frontrunner in AI-driven imaging solutions, Subtle Medical is dedicated to optimizing scan efficiency and enhancing image quality across radiology. It has garnered numerous accolades including recognition by TIME as one of the World's Top Healthcare Companies in 2025 and multiple mentions in CB Insights' GenAI 50 and Digital Health 150 lists. With deployments on over 1,300 scanners worldwide, Subtle Medical continues to lead innovations that enable imaging centers and hospitals to provide faster scans, elevate image quality, and improve patient care without the need for new hardware. To learn more, visit www.subtlemedical.com.