Subtle Medical Receives FDA Clearance for SubtleHD PET, Next-Generation AI-Powered Image Acceleration and Enhancement Software
核心洞察
Subtle Medical (搜索)'s SubtleHD(PET) (搜索) received FDA clearance, enabling up to 75% faster PET imaging on existing scanners across all FDA-approved radiotracers.
The AI-powered solution improves image quality, SUVmax quantitation accuracy, and supports emerging molecular imaging agents beyond traditional 18F-FDG.
With 4.5 million PET scans performed globally each year and 67% of sites expecting volume increases, the software addresses growing capacity and throughput challenges.
Subtle Medical (搜索), a leader in AI-powered medical imaging software, announced on May 27, 2026 that it has received FDA clearance for SubtleHD(PET) (搜索), its next-generation AI-powered PET image enhancement solution. The software is designed to improve image quality and accelerate PET imaging workflows across PET/CT and PET/MR systems, supporting all FDA-approved radiotracers and enabling up to 75% faster PET imaging on existing scanners without requiring hardware upgrades.
The clearance significantly expands Subtle Medical (搜索)'s PET market reach, including imaging providers utilizing advanced radiotracers, theranostics programs, and health systems operating their own cyclotrons.
Addressing Growing PET Imaging Demand
There are an estimated 4.5 million PET scans performed each year globally, with PET imaging continuing to expand as new tracers and theranostic workflows emerge. Industry reports indicate that 67% of PET imaging sites expect procedure volumes to increase over the next 12 months. As PET imaging volumes continue to grow, health systems are increasingly challenged to improve throughput, expand patient access, and maximize existing scanner capacity.
"PET imaging demand continues to grow globally, but providers remain constrained by scanner capacity, long scan times, and operational inefficiencies," said Ajit Shankaranarayanan, Chief Product Officer of Subtle Medical (搜索). "SubtleHD(PET) (搜索) brings the latest advances in AI imaging to help address these issues and helps imaging providers improve throughput, drive new revenue, increase patient access, and maximize the value of existing PET infrastructure while delivering faster, more comfortable imaging experiences for patients."
Technical Advancements and Validation
Building on the success of SubtlePET, which is already deployed on numerous scanners worldwide, SubtleHD(PET) (搜索) brings improved capabilities. Built on a state-of-the-art AI model architecture, the solution provides improved image enhancement performance, greater SUVmax quantitation accuracy, and expanded compatibility across all FDA-approved radiotracers, including emerging molecular imaging agents beyond traditional 18F-FDG imaging.
SubtleHD(PET) (搜索) was validated across a broad range of accelerated low-count PET acquisitions and includes the ability to adjust the denoising level to the radiologist's preference. The software also leverages anatomical CT data to further improve PET image reconstruction quality and quantitative consistency.
Clinical and Operational Benefits
For patients, shorter PET exams may help reduce discomfort and improve the imaging experience, particularly for oncology, elderly, pediatric, and critically ill populations who often struggle with lengthy scans. For imaging providers, shorter scan times allow for additional slot times, which can significantly increase revenue for imaging centers.
Multi-Modality AI Imaging Portfolio
SubtleHD(PET) (搜索) is part of Subtle Medical (搜索)'s expanding multi-modality AI imaging portfolio spanning MRI, PET, and CT. The company, recognized by TIME as a World's Top Healthcare Company in 2025 and multiple times as a CB Insights GenAI 50, Digital Health 150, and Top AI 100 company, has its solutions deployed on over 1,300 scanners worldwide.
As healthcare systems increasingly look for scalable AI solutions that work across existing infrastructure, Subtle Medical (搜索) is building toward a broader AI Imaging Hub vision designed to accelerate, enhance, and organize imaging workflows across modalities, scanners, and health systems. The company's long-term goal is to create a unified AI infrastructure layer for medical imaging that helps providers improve operational efficiency, standardize imaging quality, expand patient access, and scale AI adoption enterprise-wide.