MAGNETOM Amira; MAGNETOM Sempra

K223343

Siemens Medical Solutions USA Inc. · cleared 2023-03-28 · product code LNH · Radiology

Premarket evidence — what FDA accepted

Device typehardware
source quote (p.3)
“The MAGNETOM system is indicated for use as a magnetic resonance diagnostic device (MRDD) that produces transverse, sagittal, coronal and oblique cross sectional images, spectroscopic images and/or spectra, and that displays the internal structure and/or function of the head, body, or extremities.”
Algorithmnetwork
source quote (p.7)
“Below Table 1 shows an executive summary of training and validation dataset of AI features (Deep Resolve Boost and Deep Resolve Sharp) in subject devices: Table 1. Training and validation dataset of AI features The impact of the network has been characterized by several quality metrics such as peak signal-to-noise ratio (PSNR) and structural similarity index (SSIM).”
Adaptive (vs locked)No
source quote (p.7)
“Note: due to reasons of data privacy, we did not record how many individuals the datasets belong to. Gender, age and ethnicity distribution was also not recorded during data collection. Due to the network architecture, attributes like gender, age and ethnicity are not relevant to the training data. The input and output variables of the network have been derived from the same dataset so that no confounders exist for the training methodology.”
PCCPFDA source did not state this
Cybersecurity addressedNo

Validation studies (2)

Bench

sample size not stated

endpoints: SNR and image uniformity measurements for coils; Heating measurements for coils; Sample clinical images; Software verification and validation

standards: Guidance for Submission of Premarket Notifications for Magnetic Resonance Diagnostic Devices, Guidance for the Content of Premarket Submissions for Software Contained in Medical Devices

Retrospective clinical

n=427 patients

endpoints: peak signal-to-noise ratio (PSNR); structural similarity index (SSIM); perceptual loss; visual rating; evaluation of image sharpness by intensity profile comparisons

Reported performance (0 observations)

FDA source did not state a quantitative performance metric — non-reporting is itself the signal.

Each value carries its own analysis unit and task — never compare or pool across devices. Source: 510(k) summary PDF.

Predicate network

Postmarket — what happened after clearance

100
recalls in product code, 24mo
510
MAUDE reports in code, 12mo
+5%
vs code's own 3-yr baseline
2
drift signals on this device
  • recall_reason_pattern

    Software/algorithm-related recall in product code LNH (Philips North America, initiated 2026-04-14): "The potential for stiffness value errors when a specific range of image reconstruction parameters is used in combination with Resoundant's algorithm, leading to the reconstruction " Recalling firm is another firm in the same product code.

    first seen 2026-07-08 · recall res_event_number:98779

  • recall_reason_pattern

    Software/algorithm-related recall in product code LNH (Philips North America, initiated 2025-12-03): "The potential for stiffness value errors when viewing exported MR Elastography (MRE) stiffness maps to viewer Picture Archiving and Communication System (PACS)." Recalling firm is another firm in the same product code.

    first seen 2026-07-08 · recall res_event_number:98111

Recalls attributed to this device

  • Recalling firm matches this device's applicant (Siemens Medical Solutions USA, Inc) — same firm and product code, not necessarily this device · initiated 2025-10-01

    There is a potential for an ice blockage to form or currently exist within the primary and/or the auxiliary venting paths of the magnet helium containment venting system. In the event of a quench when both venting paths are blocked, helium gas may be unable to escape through the designed venting paths, leading to a pressure build-up within the helium containment system. This pressure build-up could ultimately rupture the helium containment system, potentially resulting in a helium leak into the scanning room.

    recall event 97845 (openFDA)

  • Recalling firm matches this device's applicant (Siemens Medical Solutions USA, Inc) — same firm and product code, not necessarily this device · initiated 2025-08-28

    There is a potential for an ice blockage to form or currently exist within the magnet venting system. In the event of a quench, helium gas may be unable to escape through the designed venting paths, leading to a pressure build-up within the helium containment system. This pressure build-up could ultimately rupture the helium containment system, potentially resulting in a helium leak into the scanning room.

    recall event 97530 (openFDA)

  • Recalling firm matches this device's applicant (Siemens Medical Solutions USA, Inc) — same firm and product code, not necessarily this device · initiated 2025-08-28

    There is a potential for an ice blockage to form or currently exist within the magnet venting system. In the event of a quench, helium gas may be unable to escape through the designed venting paths, leading to a pressure build-up within the helium containment system. This pressure build-up could ultimately rupture the helium containment system, potentially resulting in a helium leak into the scanning room.

    recall event 97530 (openFDA)

  • Recalling firm matches this device's applicant (Siemens Medical Solutions USA, Inc) — same firm and product code, not necessarily this device · initiated 2025-08-28

    There is a potential for an ice blockage to form or currently exist within the magnet venting system. In the event of a quench, helium gas may be unable to escape through the designed venting paths, leading to a pressure build-up within the helium containment system. This pressure build-up could ultimately rupture the helium containment system, potentially resulting in a helium leak into the scanning room.

    recall event 97530 (openFDA)

Recall and MAUDE counts are product-code-level (reports aren't reliably attributable to one device); a recall is shown as device-attributed only when the recall record itself lists this clearance number. Signals are descriptive observables with sources — never a judgment that the device is unsafe or drifting. Snapshot 2026-07-08.

Reimbursement — how devices like this got paid

Not yet tracked — no payment pathway indexed for this clearance (the reimbursement corpus is a growing seed set).

Applicable FDA guidance — what the submission is measured against

FDA guidance documents and guiding principles applicable to 510(k) AI/ML devices in the Radiology panel. A curated reference index, not legal or regulatory advice — each item states its own status, and a draft is never binding.

Applicability is derived from the device's FDA advisory panel and pathway — cross-cutting guidances apply to every AI/ML device; panel-specific ones are flagged. Titles, dates, and links verified against fda.gov as of July 2026.

Constat Precedent · public FDA/CMS data · descriptive decision-support, not regulatory or reimbursement advice. Share this page: constat.dev/precedent/device/K223343