SIGNA™ Bolt

K253780

Ge Medical Systems, LLC · cleared 2026-02-06 · product code LNH · Radiology

Premarket evidence — what FDA accepted

Device typehardware with ml
source quote (p.4)
“The SIGNAT™ Bolt system is a whole body magnetic resonance scanner designed to support high resolution, high signal-to-noise ratio, and short scan times. It is indicated for use as a diagnostic imaging device to produce axial, sagittal, coronal, and oblique images, spectroscopic images, parametric maps, and/or spectra, dynamic images of the structures and/or functions of the entire body, including, but not limited to, head, neck, TMJ, spine, breast, heart, abdomen, pelvis, joints, prostate, blood vessels, and musculoskeletal regions of the body. Depending on the region of interest being imaged, contrast agents may be used. The images produced by the SIGNAT™ Bolt system reflect the spatial distribution or molecular environment of nuclei exhibiting magnetic resonance. These images and/or spectra when interpreted by a trained physician yield information that may assist in diagnosis. Software platform featuring various productivity enhancement features, designed to improve workflow and reduce scan time AIRx (previously cleared in K183231) – AI-based automated slice prescription tool now extended with new deep learning models for spine and prostate imaging SIGNA One Camera – Real-time AI-enabled image guidance that assists with automated patient positioning”
AlgorithmAI-based automated slice prescription tool with deep learning models; Real-time AI-enabled image guidance
source quote (p.6)
“AIRx (previously cleared in K183231) – AI-based automated slice prescription tool now extended with new deep learning models for spine and prostate imaging SIGNA One Camera – Real-time AI-enabled image guidance that assists with automated patient positioning”
Adaptive (vs locked)FDA source did not state this
PCCPFDA source did not state this
Cybersecurity addressedYes
source quote (p.8)
“Cybersecurity testing was completed and documented in accordance with the FDA guidance "Cybersecurity in Medical Devices: Quality System Considerations and Content of Premarket Submissions" issued on June 27, 2025.”

Validation studies (6)

Bench

sample size not stated

endpoints: Risk Analysis; Requirements Reviews; Design Reviews; Unit-Level Testing (Verification); System Integration Testing (Verification); Performance Testing (Verification); Simulated Use Testing (Validation)

standards: ANSI/AAMI/IEC 60601-1, IEC 60601-1-2, IEC 60601-2-33, IEC TS 60601-4-2, IEC 62304, ISO 10993-1, IEC 62464-1, NEMA MS 1, NEMA MS 3, NEMA MS 4, NEMA MS 6, NEMA MS 8, NEMA MS 9, NEMA MS 14, NEMA PS 3.1 - 3.20

Bench

sample size not stated

endpoints: performance specifications by accurately detecting and displaying respiratory and peripheral cardiac waveforms

Standalone

n=80 patients

endpoints: deep learning model landmark inference accuracy; successful detection

Reader study (MRMC)

n=11 other

endpoints: efficiency and reliability of landmarking workflow; success rate in landmark acceptance

Standalone

n=376 patients

endpoints: predefined acceptance criteria; scan prescription times; inter-operator variability; Structural Similarity Index (SSIM) analysis; visual comparisons

Standalone

n=785 cases

endpoints: predefined acceptance criteria; robustness to variations in anatomy, pathology, and presence of implants

Reported performance (1 observation)

detection_rateas written: “SIGNA One Camera successful detection”0.99
source quote (p.9)
“achieving successful detection in up to 99% of cases across all evaluated anatomical regions.”

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 (GE Medical Systems, LLC) — same firm and product code, not necessarily this device · initiated 2025-06-20

    GE HealthCare has become aware that for certain MR systems (SIGNA Artist, SIGNA Voyager, Discovery MR450 1.5T, Optima MR450w 1.5T, SIGNA Architect, SIGNA Premier, SIGNA UHP, Discovery MR750 3.0T, Discovery MR750w 3.0T, SIGNA Hero, SIGNA PET/MR, SIGNA Artist Evo, SIGNA Voyager AIR (China Only), SIGNA Architect AIR (China Only), SIGNA Premier XT (China Only), SIGNA Premier Elite (China Only), SIGNA Premier MAX (China Only), SIGNA Hero XT (China Only), SIGNA Hero Elite (China Only), SIGNA Hero MAX (China Only), SIGNA PET/MR AIR (China Only), SIGNA PET/MR AIR Plus (China Only), the planned maintenance steps to check the functionality of the caster locks on the MR patient table may not have been performed.

    recall event 97187 (openFDA)

  • Recalling firm matches this device's applicant (GE Medical Systems, LLC) — same firm and product code, not necessarily this device · initiated 2025-06-20

    GE HealthCare has become aware that for certain MR systems (SIGNA Artist, SIGNA Voyager, Discovery MR450 1.5T, Optima MR450w 1.5T, SIGNA Architect, SIGNA Premier, SIGNA UHP, Discovery MR750 3.0T, Discovery MR750w 3.0T, SIGNA Hero, SIGNA PET/MR, SIGNA Artist Evo, SIGNA Voyager AIR (China Only), SIGNA Architect AIR (China Only), SIGNA Premier XT (China Only), SIGNA Premier Elite (China Only), SIGNA Premier MAX (China Only), SIGNA Hero XT (China Only), SIGNA Hero Elite (China Only), SIGNA Hero MAX (China Only), SIGNA PET/MR AIR (China Only), SIGNA PET/MR AIR Plus (China Only), the planned maintenance steps to check the functionality of the caster locks on the MR patient table may not have been performed.

    recall event 97187 (openFDA)

  • Recalling firm matches this device's applicant (GE Medical Systems, LLC) — same firm and product code, not necessarily this device · initiated 2025-06-20

    GE HealthCare has become aware that for certain MR systems (SIGNA Artist, SIGNA Voyager, Discovery MR450 1.5T, Optima MR450w 1.5T, SIGNA Architect, SIGNA Premier, SIGNA UHP, Discovery MR750 3.0T, Discovery MR750w 3.0T, SIGNA Hero, SIGNA PET/MR, SIGNA Artist Evo, SIGNA Voyager AIR (China Only), SIGNA Architect AIR (China Only), SIGNA Premier XT (China Only), SIGNA Premier Elite (China Only), SIGNA Premier MAX (China Only), SIGNA Hero XT (China Only), SIGNA Hero Elite (China Only), SIGNA Hero MAX (China Only), SIGNA PET/MR AIR (China Only), SIGNA PET/MR AIR Plus (China Only), the planned maintenance steps to check the functionality of the caster locks on the MR patient table may not have been performed.

    recall event 97187 (openFDA)

  • Recalling firm matches this device's applicant (GE Medical Systems, LLC) — same firm and product code, not necessarily this device · initiated 2025-06-20

    GE HealthCare has become aware that for certain MR systems (SIGNA Artist, SIGNA Voyager, Discovery MR450 1.5T, Optima MR450w 1.5T, SIGNA Architect, SIGNA Premier, SIGNA UHP, Discovery MR750 3.0T, Discovery MR750w 3.0T, SIGNA Hero, SIGNA PET/MR, SIGNA Artist Evo, SIGNA Voyager AIR (China Only), SIGNA Architect AIR (China Only), SIGNA Premier XT (China Only), SIGNA Premier Elite (China Only), SIGNA Premier MAX (China Only), SIGNA Hero XT (China Only), SIGNA Hero Elite (China Only), SIGNA Hero MAX (China Only), SIGNA PET/MR AIR (China Only), SIGNA PET/MR AIR Plus (China Only), the planned maintenance steps to check the functionality of the caster locks on the MR patient table may not have been performed.

    recall event 97187 (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/K253780