510(k) · Cleared
ClearedCT:VQ
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
4Dmedical Limited · JAK System, X-Ray, Tomography, Computed
Cleared on Aug 28, 2025 as substantially equivalent to K232392 (4Dmedical Limited, 2023) and 1 other predicate after a 106-day review. Its family tree reaches back 9 generations to 1995.
- Decided
- Aug 28, 2025
- Review
- 106 days
- Class
- Class II
- Product code
- JAK
- Recalls
- None
- Predicates
- 2
Its longest line of descent runs back 9 generations to K954355 (1995). 41 ancestors in all, the oldest K880965 (1988). No later device cites it as a predicate yet.
- Root · 9 generations backK954355 Advantage Windows 3D with Navigator OptionGeneral Electric Co. · 1995
- 5 generations between
- 3 generations backK083227 Vida Pulmonary Workstation 2 (PW2)Vida Diagnostics, Inc. · 2008
- 2 generations backK151919 Vitrea CT Lung Density Analysis SoftwareVital Images, Inc. · 2015
- 1 generation backK232392 CT Lung Ventilation Analysis Software (CT:V)4Dmedical Limited · 2023
- This deviceK251484 CT:VQ4Dmedical Limited · 2025
Show all 9 generations
- Root · 9 generations backK954355 Advantage Windows 3D with Navigator OptionGeneral Electric Co. · 1995
- 8 generations backK974715 Advantage 3D XRGE Medical Systems · 1998
- 7 generations backK984634 3D-AngioSiemens Medical Corp. · 1999
- 6 generations backK011447 IN Space 3DSiemens Medical Solutions USA, Inc. · 2001
- 5 generations backK043469 Syngo Inspace 4DSiemens AG Medical Solutions · 2005
- 4 generations backK071513 Inspace 4D Software Package with Extended FunctionalitySiemens Medical Solutions · 2007
- 3 generations backK083227 Vida Pulmonary Workstation 2 (PW2)Vida Diagnostics, Inc. · 2008
- 2 generations backK151919 Vitrea CT Lung Density Analysis SoftwareVital Images, Inc. · 2015
- 1 generation backK232392 CT Lung Ventilation Analysis Software (CT:V)4Dmedical Limited · 2023
- This deviceK251484 CT:VQ4Dmedical Limited · 2025
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −9 | K954355 | Advantage Windows 3D with Navigator Option | General Electric Co. | 1995 | — |
| −8 | K974715 | Advantage 3D XR | GE Medical Systems | 1998 | — |
| −7 | K984634 | 3D-Angio | Siemens Medical Corp. | 1999 | — |
| −6 | K011447 | IN Space 3D | Siemens Medical Solutions USA, Inc. | 2001 | — |
| −5 | K043469 | Syngo Inspace 4D | Siemens AG Medical Solutions | 2005 | — |
| −4 | K071513 | Inspace 4D Software Package with Extended Functionality | Siemens Medical Solutions | 2007 | — |
| −3 | K083227 | Vida Pulmonary Workstation 2 (PW2) | Vida Diagnostics, Inc. | 2008 | — |
| −2 | K151919 | Vitrea CT Lung Density Analysis Software | Vital Images, Inc. | 2015 | — |
| −1 | K232392 | CT Lung Ventilation Analysis Software (CT:V) | 4Dmedical Limited | 2023 | — |
| 0 (this device) | K251484 | CT:VQ | 4Dmedical Limited | 2025 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1988 | 2 | 0 |
| 1991 | 2 | 0 |
| 1994 | 2 | 0 |
| 1996 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 0 |
| 2003 | 3 | 0 |
| 2004 | 2 | 0 |
| 2005 | 3 | 0 |
| 2006 | 1 | 0 |
| 2007 | 1 | 0 |
| 2009 | 1 | 0 |
Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.
Planning a device in JAK? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.
Top candidate predicates for a new JAK device
- #1 K230223 iCAC Devicescore 23.5 · 12 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against? (2)
Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K232392 | CT Lung Ventilation Analysis Software (CT:V)Summary page 5…ion Class: Class II Product Code: JAK 3. Legally Marketed Predicate Devices Primary Predicate Device 510(k) number: K232392 Name of Device: CT Lung Ventilation Analysis Software Manufacturer 4DMedical Limited… | 2023 |
| * | K090504 | CSBP-001A Body Perfusion SystemSummary page 6…Page 1 of 8 510(k) Summary: CT:VQ Secondary Predicate Device 510(k) number: K090504 Name of Device: CSBP-001A; Body Organ Perfusion System Manufacturer Toshiba America Medical Sy… | 2009 |
What descends from it?
No later submission names this one as a predicate yet.
Has anything in its family been recalled? (0 Class I)
No FDA recall names this device.
No ancestor or descendant has a Class I recall.
What does this lineage say?
- The line of descent spans 30 years and passes through 9 companies; a new generation was cleared every 2.4 years on median.
- 7 of the 41 ancestors have a recall of any class.
How does its category compare?
All JAK devicesJAK System, X-Ray, Tomography, Computed: FDA decisions, review times, recalls and adverse event reports over 20 years. 2025, this device’s year, is highlighted.
FDA decisions per year · JAK
27in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · JAK
141in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · JAK
17in 2025
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · JAK
219in 2025
MAUDE reports naming product code JAK, not matched to any one device; reports are not rates.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 14 | 27 | 11 | 76 |
| 2008 | 26 | 42 | 16 | 120 |
| 2009 | 15 | 31 | 29 | 105 |
| 2010 | 7 | 92 | 51 | 119 |
| 2011 | 16 | 155 | 34 | 205 |
| 2012 | 28 | 121 | 23 | 192 |
| 2013 | 17 | 132 | 11 | 414 |
| 2014 | 30 | 200 | 10 | 308 |
| 2015 | 30 | 140 | 28 | 454 |
| 2016 | 25 | 129 | 44 | 365 |
| 2017 | 29 | 96 | 33 | 338 |
| 2018 | 24 | 114 | 10 | 543 |
| 2019 | 28 | 94 | 5 | 233 |
| 2020 | 30 | 112 | 8 | 177 |
| 2021 | 20 | 145 | 15 | 261 |
| 2022 | 30 | 131 | 9 | 199 |
| 2023 | 27 | 139 | 9 | 310 |
| 2024 | 26 | 141 | 20 | 212 |
| 2025 | 27 | 141 | 17 | 219 |
| 2026 | 21 | 167 | 23 | — |
What is it indicated for?
CT:VQ software is a non-invasive image post-processing technology, using CT lung images to provide clinical decision support for thoracic disease diagnosis and management in adult patients. It utilizes two non-contrast chest CT studies to quantify and visualize ventilation and perfusion.
Quantification and visualizations are provided as DICOM images. CT:VQ may be used when Radiologists, Pulmonologists, and/or Nuclear Medicine Physicians need a better understanding of a patient's lung function and/or respiratory condition.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K251484 · printed Nov 5, 2026
Cite this page
510(k) Report. “K251484: CT:VQ.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K251484
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Record history
- FDA decision record loaded May 2, 2026
- Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
- Lineage and recalls computed Nov 3, 2026
- Page last updated Nov 3, 2026