K032428 · Siemens Medical Solutions USA, Inc. · LNH · Oct 16, 2003 · Radiology
Device Facts
Record ID
K032428
Device Name
MAGNETOM AVANTO MR SYSTEM
Applicant
Siemens Medical Solutions USA, Inc.
Product Code
LNH · Radiology
Decision Date
Oct 16, 2003
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 892.1000
Device Class
Class 2
Indications for Use
The MAGNETOM Avanto is indicated for use as magnetic resonance diagnostic devices (MRDD) that produces transverse, sagittal, coronal and oblique cross sectional images, spectroscopic images and/or spectra, and that display the internal structure and/or function of the head, body, or extremities. These images and/or spectra when interpreted by a trained physician yield information that may assist in diagnosis. The MAGNETOM Avanto may also be used for imaging during interventional procedures when performed with MR compatible devices such as, in room display and MR safe biopsy needles.
Device Story
MAGNETOM Avanto is 1.5 T closed superconducting magnetic resonance diagnostic device (MRDD). System acquires transverse, sagittal, coronal, and oblique cross-sectional images and spectroscopic data; displays internal structure and function of head, body, or extremities. Operated by trained clinicians in clinical settings; supports interventional procedures using MR-compatible accessories (e.g., biopsy needles, in-room displays). Physician interprets images/spectra to assist in diagnosis. Device utilizes modified gradient coil, RF body resonator, and magnet hardware similar to predicate systems. Safety and performance conform to NEMA and IEC standards for MR imaging.
Clinical Evidence
Bench testing only. No clinical data provided. Performance evaluated against NEMA standards for MR diagnostic devices, including signal-to-noise ratio, image uniformity, geometric distortion, slice profile, and high-contrast spatial resolution.
Technological Characteristics
1.5 T closed superconducting magnet system. Hardware includes modified gradient coil, RF body resonator, and magnet. Conforms to NEMA standards for MR performance and IEC standards for safety. Connectivity and software architecture not specified beyond standard MR diagnostic imaging functionality.
Indications for Use
Indicated for patients requiring diagnostic MR imaging of the head, body, or extremities, including interventional procedures. Applicable to all patient populations where MR imaging is clinically indicated and safe.
Regulatory Classification
Identification
A magnetic resonance diagnostic device is intended for general diagnostic use to present images which reflect the spatial distribution and/or magnetic resonance spectra which reflect frequency and distribution of nuclei exhibiting nuclear magnetic resonance. Other physical parameters derived from the images and/or spectra may also be produced. The device includes hydrogen-1 (proton) imaging, sodium-23 imaging, hydrogen-1 spectroscopy, phosphorus-31 spectroscopy, and chemical shift imaging (preserving simultaneous frequency and spatial information).
Special Controls
*Classification.* Class II (special controls). A magnetic resonance imaging disposable kit intended for use with a magnetic resonance diagnostic device only is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to the limitations in § 892.9.
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K032428
## 12 510(k) Summary
This summary of 510(k) safety and effectiveness information is being submitted in accordance with the requirements of Safe Medical Device Act 1990 and 21 CFR § 807.92.
I. General Information
| Establishment | Siemens Medical Solutions. Inc.<br>51 Valley Stream Parkway<br>Malvern. PA 19355 |
|---------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| Registration Number | 2240869 |
| Manufacturer | Siemens AG. Bereich Med<br>Henkestrasse 127<br>D-91052 Erlangen. Germany |
| Registration Number | 8010024 |
| Contact Person | Ms. Nealie Hartman<br>Technical Specialist. Regulatory Submissions<br>51 Valley Stream Parkway<br>Malvern. PA 19355<br>Phone: (610)448-1769<br>Fax: (610) 448-1787 |
| Device Name | Trade Name: MAGNETOM Avanto System |
| | Classification Name: Magnetic Resonance Diagnostic Device |
| | CFR Code: 21 CFR § 892.1000 |
| | Classification: Class II |
#### Performance Standards
None established under Section 514 the Food. Drug. and Cosmetic Act.
CONFIDENTIAL
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### II. Safety and Effectiveness Information Supporting Substantial Equivalence.
#### Intended Use
The MAGNETOM Avanto is indicated for use as magnetic resonance diagnostic devices (MRDD) that produces transverse, sagittal, coronal and oblique cross sectional images, spectroscopic images and/or spectra, and that display the internal structure and/or function of the head, body, or extremities. These images and/or spectra when interpreted by a trained physician yield information that may assist in diagnosis.
The MAGNETOM Avanto may also be used for imaging during interventional procedures when performed with MR compatible devices such as, in room display and MR safe biopsy needles.
#### Device Description
The MAGNETOM Avanto System is a 1.5 T closed superconducting magnet designed scanner. It consists of the same types of hardware (with a modified gradient coil. RF body resonator and magnet) that are currently available with the MAGNETOM Sonata and Symphony systems.
#### Substantial Equivalence
The system is substantially equivalent to the following cleared medical devices:
| Predicate Device Name | FDA Clearance<br>Number | FDA Clearance Date |
|---------------------------------|-------------------------|--------------------|
| Siemens MAGNETOM 1.5 T Sonata | K993731 | 12/23/99 |
| Siemens MAGNETOM 1.5 T Symphony | K971684 | 08/05/97 |
#### General Safety and Effectiveness Concerns:
Operation of the MAGNETOM Avanto System is substantially equivalent to the commercially available MAGNETOM 1.5 T Sonata System and 1.5 T Symphony System. Specified by the FDA guidance document for MR Diagnostic Devices that will be evaluated. below are the safety parameter with the following levels:
Action Levels
- · Maximum Static Field
- · Rate of Change of Magnetic Field
- · RF Power Deposition
- Acoustic Noise Levels
Performance Levels
- · Specification Volume
- · Signal to Noise
- · Image Uniformity
- · Geometric Distortion
- · Slice Profile. Thickness and Gap
- High Contrast Spatial Resolution
The MAGNETOM Avanto will conform to the FDA recognized NEMA Standards for the measurement of performance and safety parameters and the international IEC standard for safety issues with Magnetic Resonance Imaging Devices. This will assure that the performance of this device can be considered safe and effective with respect to the currently available MAGNETOM Sonata and Symphony systems.
CONFIDENTIAL
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Image /page/2/Picture/1 description: The image shows the logo for the U.S. Department of Health & Human Services (HHS). The logo features a stylized depiction of an eagle with three parallel lines extending from its head, resembling feathers or wings. The text "DEPARTMENT OF HEALTH & HUMAN SERVICES" is arranged in a circular fashion around the eagle symbol.
Food and Drug Administration 9200 Corporate Boulevard Rockville MD 20850
## OCT 1 6 2003
Ms. Nealie Hartman Technical Specialist, Regulatory Submissions Siemens Medical Solutions, Inc. 51 Valley Stream Parkway MALVERN PA 19355
Re: K032428
Trade/Device Name: MAGNETOM Avanto MR System Regulation Number: 21 CFR 892.1000 Regulation Name: Magnetic resonance diagnostic device Regulatory Class: II Product Code: 90 LNH and LNI Dated: August 4, 2003 Received: August 6, 2003
Dear Ms. Hartman:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA), You may, therefore, market the device, subject to the general controls provisions of the Act. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820); and if applicable, the electronic product radiation control provisions (sections 531-542 of the Act); 21 CFR 1000-1050.
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This letter will allow you to begin marketing your device as described in your Section 510(k) premarket notification. The FDA finding of substantial equivalence of your device to a legally marketed predicate device results in a classification for your device and thus, permits your device to proceed to the market.
If you desire specific advice for your device on our labeling regulation (21 CFR Part 801), please contact the Office of Compliance at one of the following numbers, based on the regulation number at the top of the letter:
| 8xx.1xxx | (301) 594-4591 |
|----------------------------------|----------------|
| 876.2xxx, 3xxx, 4xxx, 5xxx | (301) 594-4616 |
| 884.2xxx, 3xxx, 4xxx, 5xxx, 6xxx | (301) 594-4616 |
| 892.2xxx, 3xxx, 4xxx, 5xxx | (301) 594-4654 |
| Other | (301) 594-4692 |
Additionally, for questions on the promotion and advertising of your device, please contact the Office of Compliance at (301) 594-4639. Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21CFR Part 807.97) you may obtain. Other general information on your responsibilities under the Act may be obtained from the Division of Small Manufacturers, International and Consumer Assistance at its toll-free number (800) 638-2041 or (301) 443-6597 or at its Internet address http://www.fda.gov/cdrh/dsma/dsmamain.html.
Sincerely yours,
Nancy C. Brogdon
Nancy C. Brogdon Director, Division of Reproductive, Abdominal and Radiological Devices Office of Device Evaluation Center for Devices and Radiological Health
Enclosure
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# 3 Indications for Use Statement
510(k) Number (if known)
Device Name: MAGNETOM Avanto
Indications for Use:
The MAGNETOM Avanto is indicated for use as magnetic resonance diagnostic devices (MRDD) that produce transverse, sagittal, coronal and oblique cross sectional images, spectroscopic images and/or spectra, and that display the internal structure and/or function of the head, body, or extremities. These images and/or spectra when interpreted by a trained physician yield information that may assist in diagnosis.
The MAGNETOM Avanto may also be used for imaging during interventional procedures when performed with MR compatible devices such as, in room display and MR safe biopsy needles.
(please do not write below this line- continue on another page if needed)
Concurrence of CDRH, Office of Device Evaluation
Prescription Use 7
OR
Over-The-Counter Use
Nancy C. Brogdon
Division Sign Off
Division of Reproductive, and Radiological Device 510(k) Number
Siemens 510(k) Premarket Notification MAGNETOM Avanto
August 1, 2003
Page 13
CONFIDENTIAL
Two short videos show you everything — or skip straight to the written tutorial if you'd rather read. You can reopen this any time from the Tutorial button in the top bar.
Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
Where do you find a device's intended use without opening the PDF?
Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
What does the AI Performance sub-table show, and why is it useful?
Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
How do you verify an AI chat answer on the device detail page?
Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
How do you save a set of selected devices for later use?
Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
8. Chart view
Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.
