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Subtle Medical Alternatives, SwiftMR and Deep Learning MRI Reconstruction for Imaging Centers
The short answer
The main alternative to Subtle Medical is AIRS Medical SwiftMR, the closest like-for-like option: vendor-neutral MRI acceleration software with its own FDA record (5 SwiftMR clearances since 2021, against 11 for Subtle Medical across its products). The other route is the scanner maker's own deep learning reconstruction: GE AIR Recon DL, Siemens Deep Resolve, Philips SmartSpeed or Canon AiCE, for which VA purchase orders show about $145,000 to $149,000 per scanner for the Siemens and Philips versions.
An imaging center that wants more MRI slots per day without buying a new magnet has two kinds of product to choose from. The first is post-processing software that takes a shorter, noisier acquisition from any scanner and cleans it up after the fact. Subtle Medical (SubtleMR, now SubtleHD in the SubtleELITE suite) and AIRS Medical (SwiftMR) are the two names here with years of clearances behind them. The second is the scanner maker's own deep learning reconstruction, built into the console software of a specific scanner model and software level.
The choice usually comes down to the fleet. A center with three magnets from two manufacturers, one of them ten years old, gets one product across all of them from a vendor-neutral tool. A center with new scanners from one maker may already be eligible for the OEM option, and then the question is the upgrade price. This page sets out what the FDA and federal purchasing records show for each option, where each one wins, and what to put in the contract. Prices are not published by any vendor in this category, so where we quote a dollar figure it comes from a named federal purchase order.
Worklist
Structured report
DraftRun the assistant to draft this report for review.
Decision support. The radiologist reviews and signs every study.
Decision support for qualified clinicians. Radiological.ai does not provide a diagnosis and is not a substitute for professional judgment.
Flag · prioritize · draft · you review and sign
Subtle Medical and AIRS Medical sell software that makes the MRI acquisition shorter. Radiological.ai does not touch the acquisition at all. It sits on the reading side, flagging suspected findings, sorting the worklist and drafting the structured report, which matters more once faster protocols put more studies in front of the same radiologists.
Side by side
Subtle Medical against SwiftMR and the scanner makers' reconstruction
What an outpatient imaging center is usually weighing when it wants shorter MRI protocols. Every row is a published fact or a public record, not a benchmark we ran.
| What to compare | Subtle Medical (SubtleMR, SubtleHD) | SwiftMR and OEM deep learning reconstruction |
|---|---|---|
| How it works | Post-processing. Images from a shorter acquisition are sent to the software, denoised and sharpened, and returned to PACS as a new series. | SwiftMR works the same way. The OEM products (AIR Recon DL, Deep Resolve, SmartSpeed, AiCE) run inside the scanner's reconstruction, on raw data, before any image leaves the console. |
| Which scanners | Subtle Medical says the SubtleELITE suite works on MRI scanners of any manufacturer. | SwiftMR is also sold as vendor neutral. Each OEM product runs only on that maker's scanners, and only on models and software levels the maker supports. |
| FDA 510(k) record | 11 clearances under Subtle Medical, Inc., from SubtlePET (K182336, 2018) to SubtleHD (K243250, February 2025), SubtleHD-PET (K254013) and SubtleHD-CT (K254120) in May 2026. | AIRS Medical: 5 SwiftMR clearances, the newest K261349 (July 2026). GE AIR Recon DL: 3, the newest K253808 (August 2026). Canon AiCE appears in 28 device names across MR and CT. |
| Product code | MR products cleared under LLZ and, since SubtleSYNTH and SubtleHD, QIH (automated radiological image processing software, 21 CFR 892.2050). | SwiftMR moved from LLZ to QIH in 2026. OEM reconstruction is cleared under LNH, the MR system itself (21 CFR 892.1000), usually inside a scanner submission. |
| Federal purchasing record | Zero prime awards naming Subtle Medical, SubtleMR or SubtleHD on USAspending. | Zero for SwiftMR. VA bought Deep Resolve for a Sola at Dallas at $144,574 per order (2026), SmartSpeed at Lexington for $149,210 (2025) and Canon AiCE upgrades at $77,403 (2023) and $61,191 (2026), modality not stated. |
| Price | Unpublished. Usually quoted as a subscription per scanner or per study. | Unpublished for SwiftMR. OEM options are quoted as a one-time software upgrade, sometimes bundled with a hardware or software level change. |
| Where it wins | Mixed or older fleets, one vendor across every magnet, and a product line that now reaches PET and CT as well as MRI. | SwiftMR on the same fleet argument, plus a 2026 clearance to run alongside OEM reconstruction. OEM products win on new single-vendor fleets because they work on raw data and need no extra server. |
| Switching cost | Low. Protocols change, but archives, priors and reports do not. | Low for SwiftMR. For OEM, the cost is the upgrade itself and any scanner that is too old to qualify. |
FDA data is from the openFDA 510(k) database, federal data from USAspending.gov, both collected October 15, 2026. Product descriptions come from each vendor's announcements. Speed claims are the vendors' own and were not tested by us.
What the public record shows
The FDA record for MRI acceleration and reconstruction software
None of these vendors publishes a price, so the most useful comparison is how often each one has put a new version through the FDA, and under which code.
| Product | Most recent 510(k) | What it tells a buyer |
|---|---|---|
| Subtle Medical SubtleHD | K243250, February 12, 2025 (QIH) | The successor to SubtleMR (K191688 in 2019, K203182 in 2021, K223623 in 2023) and the core of the SubtleELITE suite. |
| Subtle Medical, other products | K254120 SubtleHD-CT, May 15, 2026 (QIH) | Also SubtleHD-PET (K254013), SubtleSYNTH (K241329), SubtleREFORMAT (K233699), AiMIFY (K240290) and two SubtlePET clearances. |
| AIRS Medical SwiftMR | K261349, July 24, 2026 (QIH) | Five SwiftMR clearances since October 2021 (K210999, K220416, K230854, K253775, K261349). AIRS Medical announced a clearance to work alongside OEM deep learning reconstruction. |
| AIRS Medical SwiftSight | K261612 BodyComposition, October 1, 2026 (LNH) | SwiftSight-Brain (K251483, September 2025) is a separate analysis product, not acceleration. |
| GE HealthCare AIR Recon DL | K253808, August 13, 2026 (LNH) | Three clearances under that device name since June 2022 (K213717, K252379, K253808). Runs on GE scanners only. |
| Canon AiCE | K253625, March 27, 2026 (LNH) | Cleared inside each Vantage scanner submission, version by version. AiCE also exists on Canon CT, so check which modality a quote covers. |
| Siemens Deep Resolve, Philips SmartSpeed | No record under those names | Cleared inside MAGNETOM and Ingenia system submissions, the newest K260852 (Siemens, July 2026) and K253648 (Philips, February 2026). |
Source: openFDA 510(k) database, searched by applicant and device name on October 15, 2026. LLZ and QIH are image processing software (21 CFR 892.2050, class II); LNH is the MR system (21 CFR 892.1000, class II). Siemens and Philips list no device named Deep Resolve or SmartSpeed, so ask which scanner clearance covers your software version.
Side by side
Radiological.ai vs Subtle Medical, honestly
A fair look at what each does well. Both are capable tools. Here is where they differ.
| What matters | Radiological.ai | Subtle Medical |
|---|---|---|
| What you are buying | Software that flags suspected findings on X-ray, CT and MRI, prioritizes the radiology worklist and drafts the structured report. | Software that lets the scanner run a shorter MRI protocol and restores image quality afterward. |
| Which side of the workflow | The read. It starts once the study is in PACS. | The acquisition. It ends once the series is in PACS. |
| Relationship to your systems | Works alongside the PACS you already run over standard DICOM, whatever made the scanner. | Sits between the scanner and PACS, or inside the scanner for OEM products. |
| Unit of cost | Per reading radiologist, published. MRI is on the Group plan, $598 a month or $299 a month billed annually. | Unpublished. Quoted per scanner, per study or as a one-time upgrade. |
| Who signs the report | The radiologist. The assistant never signs anything. | Not applicable. It produces images, not reports. |
| Best suited for | Centers where faster scanning has moved the bottleneck from the magnet to the reading room. | Centers where scanner time is the bottleneck and the backlog is patients waiting for a slot. |
Comparison reflects general, publicly understood positioning. Capabilities change, so check each product for the latest.
This page is about the acquisition side of MRI. What happens after the study lands in PACS is covered in AI MRI analysis, and the costs of the whole category, side by side, are worked through in deep learning MRI reconstruction cost, which reads the federal purchase orders line by line.
Outpatient groups weighing this alongside other software spend can compare imaging center software and the radiology software pricing benchmarks. For brain MRI specifically, where quantification rather than speed is the question, see NeuroQuant alternatives.
If faster scanning is already filling the worklist, radiology worklist prioritization software shows how urgent studies surface first, how the assistant integrates with your PACS explains what connects to what, and the pricing page lists the per-radiologist plans.
Why groups pick Radiological.ai
One assistant across the whole read
Count your magnets by maker and age first
If every scanner is from one maker and on a current software level, price the OEM option before anything else. If the fleet is mixed or a scanner is too old for the upgrade, a vendor-neutral product is usually the only way to get one protocol strategy across all of them.
Ask for the K number that covers your use
Subtle Medical and AIRS Medical have both moved products from LLZ to QIH, and both now sell more than one product. Ask in writing which clearance covers the sequences and body regions you plan to shorten.
Price it per added slot, not per license
The useful number is what each extra MRI slot costs you. VA paid about $145,000 for Deep Resolve on one Sola. Divide any quote by the extra exams a day your technologists actually achieve in a pilot, not the vendor's headline percentage.
Plan for the reads the extra slots create
A center that adds three MRI slots a day per magnet adds those reads to the same radiologists. An assistant that flags suspected findings, puts urgent studies first and drafts the report keeps turnaround from slipping as volume climbs.
Good questions
Subtle Medical vs Radiological.ai, answered
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See how Radiological.ai reads alongside your group
One assistant that flags suspected findings, prioritizes the worklist, and drafts the structured report on X-ray, CT and MRI. You review and sign every study.
Decision support for qualified clinicians. Radiological.ai does not provide a diagnosis and is not a substitute for professional medical judgment.