qXR-BT

K212690

Qure.ai Technologies · cleared 2021-12-21 · product code QIH · Radiology

Premarket evidence — what FDA accepted

Device typesamd
source quote (p.5)
“qXR-BT is a standalone image analysis software used during the review of digital chest radiographic images”
Algorithmpre-trained convolutional neural networks (CNNs)
source quote (p.5)
“The qXR-BT analysis module consists of a set of pre-trained convolutional neural networks (CNNs), that form the core processing component shown in Figure 1.”
Adaptive (vs locked)No
source quote (p.5)
“The qXR-BT analysis module consists of a set of pre-trained convolutional neural networks (CNNs), that form the core processing component shown in Figure 1.”
PCCPFDA source did not state this
Cybersecurity addressedFDA source did not state this

Validation studies (1)

Standalone

n=162 images

endpoints: localization accuracy for carina; localization accuracy for tip of breathing tube; accuracy of distance measurement between these 2 structures

Reported performance (3 observations)

accuracyas written: “Carina localization accuracy (Mean)”2.15CI 1.96 - 2.35
source quote (p.8)
“Mean (95% CI) 2.15 (1.96- 2.35)”
accuracyas written: “Tip of Breathing Tube localization accuracy (Mean)”1.97CI 1.80 - 2.13
source quote (p.8)
“Mean (95% CI) 1.97 (1.80- 2.13)”
accuracyas written: “Distance between tip of breathing tube and carina accuracy (Mean Absolute Error)”1.98CI 1.76 - 2.20
source quote (p.8)
“Mean (95% CI) 1.98 (1.76- 2.20)”

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

0
recalls in product code, 24mo
3
MAUDE reports in code, 12mo
—
vs code's own 3-yr baseline
4
drift signals on this device
  • re_clearance

    The FDA AI/ML device list shows a newer 510(k) K251934 (decision 2026-01-16) from Qure.Ai Technologies for a matching device line ("qXR-Detect") — a new clearance for the same line is a change event. The newer clearance's parsed summary mentions a PCCP.

    first seen 2026-07-08 · k_number:K251934

  • re_clearance

    The FDA AI/ML device list shows a newer 510(k) K231805 (decision 2023-12-22) from Qure.ai Technologies for a matching device line ("qXR-LN") — a new clearance for the same line is a change event.

    first seen 2026-07-08 · k_number:K231805

  • re_clearance

    The FDA AI/ML device list shows a newer 510(k) K231149 (decision 2023-09-22) from Qure.ai Technologies for a matching device line ("qXR-CTR") — a new clearance for the same line is a change event.

    first seen 2026-07-08 · k_number:K231149

  • re_clearance

    The FDA AI/ML device list shows a newer 510(k) K230899 (decision 2023-08-22) from Qure.ai Technologies for a matching device line ("qXR-PTX-PE") — a new clearance for the same line is a change event.

    first seen 2026-07-08 · k_number:K230899

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/K212690