SubtleHD-CT
by Subtle Medical, Inc.
· Based in United States →
— Deep Learning boosts healthcare. Faster, Safer, Smarter.
Overview
SubtleHD-CT by Subtle Medical, Inc. is an artificial intelligence (AI) powered software designed to enhance the quality of computed tomography (CT) images. It is intended for use in various clinical settings where CT imaging is performed.
- What it does: SubtleHD-CT applies AI algorithms to CT images to improve image sharpness and reduce noise, potentially leading to higher diagnostic quality.
- Who it is for: This tool is relevant for radiologists, emergency physicians, and other specialists who interpret CT scans. It can be utilized in hospitals, imaging centers, and other care settings that perform CT examinations.
- How it fits a clinical or practice workflow: SubtleHD-CT integrates into the existing imaging workflow. It processes CT images after acquisition, applying its enhancement algorithms before the images are sent to the Picture Archiving and Communication System (PACS) for review. This post-processing approach aims to provide improved image quality without altering the acquisition protocol.
- Notable capabilities: The primary capability of SubtleHD-CT is its ability to enhance image resolution and reduce noise in CT scans, which may aid in the visualization of anatomical structures.
Reviewed by Pouyan Golshani, MD — Interventional Radiologist
Key Features
- AI-powered image enhancement
- Reduces noise in CT images
- Improves image clarity and low-contrast detectability
- Seamless integration into existing workflows
- Vendor-neutral software
- No need for new hardware or expensive OEM upgrades
- Fast processing speeds with no manual operations needed
- Enhances diagnostic confidence
Use Cases
- Enhancing image quality in CT scans
- Improving efficiency in radiology workflows
- Addressing increasing volumes of medical imaging with existing technology
- Reducing noise and improving clarity in diverse scanner fleets, including older systems
What Physicians Need to Know
FDA Clearance Pathway
510(k) clearance.
Supported Modalities
CT, PET/CT. Subtle Medical also has AI solutions for MRI and PET imaging (SubtleHDu2122(MR), SubtleHDu2122(PET), SubtleSYNTHu2122, SubtleALIGNu2122).
Reading Room Workflow Impact
Integrates seamlessly into existing clinical workflows without requiring hardware changes. It aims to create a more consistent imaging experience and improve image quality across a broad range of CT systems.
AI Model Architecture (deep learning approach)
AI-powered image processing that reduces noise and improves image clarity. SubtleHDu2122(PET), another product from Subtle Medical, is built on a state-of-the-art AI model architecture and uses deep learning to denoise low count PET acquisitions.
DICOM Support & Standards
Compatible with any PACS.
PACS Integration Method
Vendor-neutral solution that integrates seamlessly into current workflows and is compatible with any PACS.
Sensitivity & Specificity Data
Improves visibility of low-contrast structures and supports greater diagnostic confidence in challenging images. Clinically validated across major hospitals and imaging centers, with radiologists often finding images as clear or clearer than traditional scans.
RSNA/ACR Validation
Clinically validated across major hospitals and imaging centers.
Physician Tip
SubtleHD-CT can help standardize image quality across diverse CT scanner fleets, including older systems, without requiring new hardware. This can lead to improved diagnostic confidence, especially for low-contrast structures and thin-slice CT images. The seamless integration into existing workflows minimizes disruption.
SubtleHD-CT is designed as a vendor-neutral solution, ensuring compatibility with any existing CT, PET/CT, and PACS systems. This allows for straightforward integration into current imaging infrastructure without the need for expensive OEM upgrades or new hardware.
Details
| Category | Radiology & Imaging AI |
| Pricing | Unknown — unknown |
| Deployment | Software as a Medical Device (SaMD) |
| Compliance | |
| BAA Available | Unknown AI-estimated |
| HIPAA Compliant | Unknown AI-estimated |
| FDA Status |
Unknown AI-estimated SubtleHD-CT received FDA clearance on June 10, 2026, expanding Subtle Medical's AI-powered image enhancement into CT imaging. [5, 7] Subtle Medical has secured 11 FDA clearances in total for its AI solutions. [2, 3] |
| Integrations | |
| EHR | Not specified |
| Specialties | Interventional Radiology, Oncology, Radiology |
What the Web Says
SubtleHD-CT is an AI-powered, deep learning-based post-processing tool designed to enhance the quality of standard CT images by reducing noise and improving low-contrast detectability. It integrates into existing radiology workflows without requiring changes to scanner hardware or acquisition protocols, aiming to provide cleaner images and potentially improve the detection of subtle findings. The software is FDA-cleared and is particularly relevant for dose-sensitive populations like pediatric or oncology patients who undergo repeat scans.
Overall: PositiveStrengths
- Enhances image quality by reducing noise and improving low-contrast detectability in CT scans.
- Integrates seamlessly into existing clinical workflows without requiring hardware changes or new acquisition protocols.
- Allows radiologists to work with cleaner images from existing acquisitions, potentially improving the detection of subtle findings.
- Reduces radiation dose burden to patients, especially beneficial for dose-sensitive populations such as pediatric or repeat-scan oncology patients.
- Can update older imaging equipment to produce sharper CT images, saving money and reducing waste by extending the lifespan of existing infrastructure.
- FDA-cleared, indicating it meets regulatory standards for medical devices.
Limitations
- The software doesn't change the physics of heat, meaning existing gantry, detector, and power electronics may be running more scans, more often, for longer, potentially stressing the electronics inside the scanner.
- Limited information available from independent tech reviewers, Reddit, G2, or Capterra, making it difficult to gauge broader user experience outside of medical publications and company statements.
- While it enhances images, it's a post-processing tool and doesn't fundamentally alter the initial image acquisition process.
- Specific details on pricing and implementation costs are not readily available in the search results.
- As with any AI tool, ongoing validation and monitoring of its performance in diverse clinical settings would be important.
Based on reviews from: ReachMD, DLinRT, Innolitics, AuntMinnie, Facebook (University of Rochester Medicine), PR Newswire, FDA
Last updated: 2026-09-25
Ratings & Reviews
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Press & Coverage
HealthTech Cube
Subtle Medical Lands 11th FDA Clearance for AI That Upgrades CT Images on Aging Scanners
Subtle Medical received its 11th FDA clearance for SubtleHD(CT), an AI solution that enhances CT images by reducing noise and improving low-contrast detectability, even on older scanners. This technology aims to provide consistent imaging quality across various CT systems.
2026-08
Applied Radiology
Subtle Medical Expands AI Imaging Solutions with FDA Approval for CT Enhancement Software
Subtle Medical has gained FDA clearance for SubtleHDu2122(CT), a new software that improves CT image quality by reducing noise and increasing low-contrast detectability. This expands the company's AI imaging platform to include CT, alongside its existing MRI and PET solutions.
2026-06
AuntMinnie
Subtle Medical wins FDA clearance for CT image enhancement software
Subtle Medical secured 510(k) clearance from the FDA for SubtleHD(CT), an AI-powered software designed to enhance CT images by reducing noise and improving low-contrast detectability across different CT scanner generations. This is the company's first CT product and its eleventh FDA-cleared product overall.
2026-06
PR Newswire
Subtle Medical Receives FDA Clearance for SubtleHDu2122(CT), Expanding AI-Powered Image Enhancement into CT Imaging
Subtle Medical announced FDA clearance for SubtleHDu2122(CT), an AI-powered solution that enhances CT image quality by reducing noise and improving low contrast detectability. This marks the company's entry into CT imaging, expanding its portfolio across MRI, PET, and CT.
2026-06
ReachMD
FDA-Cleared AI Medical Device Tracker
SubtleHD-CT is listed as an FDA-cleared deep learning-based post-processing tool that enhances standard CT images by producing higher-quality, lower-noise versions without requiring changes to scanner hardware or acquisition protocols. It aims to improve the detection of subtle findings without additional radiation dose.
2026-05
Imaging Technology News
Subtle Medical Gets FDA Clearance for CT Image Enhancement Software
Subtle Medical has received FDA clearance for SubtleHD(CT), an AI-powered image enhancement solution for CT imaging. This software reduces noise and improves low contrast detectability, integrating seamlessly into existing workflows.
2026-06
Med Industry Insight
Subtle Medical z FDA clearance dla SubtleHD(CT)
Subtle Medical has obtained FDA clearance for SubtleHD(CT), expanding its AI image enhancement capabilities to computed tomography. This development is significant for technology providers, validation firms, PACS integrators, and regulatory affairs specialists.
2026-06
FDA
Artificial Intelligence-Enabled Medical Devices
The FDA lists SubtleHD-CT (1.x) from Subtle Medical, Inc. as an AI-enabled medical device for radiology, with a classification product code of QIH. This list serves as a resource for innovators, healthcare providers, and patients to identify authorized AI medical devices.
2026-09
Videos
Product demos, reviews, and walkthroughs for SubtleHD-CT.
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Frequently Asked Questions
SubtleHD-CT is an AI-powered image enhancement software designed to reduce noise and improve low-contrast detectability in CT scans. It aims to provide sharper, more diagnostic-quality images, enhance the visibility of low-contrast structures, and support greater diagnostic confidence for radiologists.
Yes, SubtleHD-CT has received 510(k) clearance from the U.S. Food and Drug Administration (FDA). It is Subtle Medical's first CT product and its eleventh FDA-cleared product overall, indicating its compliance as a medical device.
SubtleHD-CT is designed as a vendor-neutral solution that integrates seamlessly into existing workflows without requiring hardware changes. It is compatible with various CT scanner types and generations, allowing imaging providers to optimize performance across their entire fleet.
Several other AI-powered solutions exist for CT image enhancement. These include GE HealthCare TrueFidelity CT, Canon Medical's Advanced intelligent Clear-IQ Engine (AiCE), and ClariCT.AI, all of which aim to improve image quality through deep learning reconstruction or noise reduction.
While AI image enhancement tools like SubtleHD-CT improve image quality, it's important to consider that they are still in early stages of development and deployment. The complexity of radiology means that AI algorithms, while good at classification tasks, still have gaps in rendering final diagnoses, which require both image and non-image information.
Specific pricing details for SubtleHD-CT are not publicly available in the provided information. However, Subtle Medical emphasizes that its solutions aim to maximize the value of existing infrastructure without requiring new hardware investments, and they have agreements that include exclusive pricing for member practices of organizations like Strategic Radiology.
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| Last Verified: 2026-09-23 | First Added: 2026-09-23
Investors who backed SubtleHD-CT
Funded through the company that built this tool.
