510(k) · Cleared
ClearedGsi Viewer with Vue Option
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
GE Medical Systems SCS · JAK System, X-Ray, Tomography, Computed
Cleared on Sep 13, 2012 as substantially equivalent to K120833 (Ge Medical Systems, LLC, 2012) after an 84-day review. Its family tree reaches back 6 generations to 2001. 2 later devices descend from it.
- Decided
- Sep 13, 2012
- Review
- 84 days
- Class
- Class II
- Product code
- JAK
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 6 generations to K013561 (2001). 2 later devices descend from it, 2 citing it directly.
- Root · 6 generations backK013561 Lightspeed 4.0 CT Scanner SystemGE Medical Systems · 2001 · Recalled
- 5 generations backK030420 Lightspeed 5.0 Computed Tomography SystemGE Medical Systems · 2003 · Recalled
- 4 generations backK040372 Lightspeed 7.0 CT Scanner SystemGe Medical Systems, LLC · 2004 · Recalled
- 3 generations backK061817 Lightspeed 7.1 CT Scanner SystemGe Medical Systems, LLC · 2006 · Recalled
- 2 generations backK081105 GE Lightspeed CT750 HD (Lightspeed 8.0)GE Healthcare · 2008 · Recalled
- 1 generation backK120833 Discovery CT750 HDGe Medical Systems, LLC · 2012 · Recalled
- This deviceK121827 Gsi Viewer with Vue OptionGE Medical Systems SCS · 2012
- Descendant · cites it directly · 0 of its ownK223514 Spectral Bone MarrowGe Medical Systems, LLC · 2023
- Descendant · cites it directly · 0 of its ownK180225 GSI Viewer with GSI Fat OptionGE Medical Systems SCS · 2018
Most influential descendants
Showing 2 of 2 · See allView FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −6 | K013561 | Lightspeed 4.0 CT Scanner System | GE Medical Systems | 2001 | 5 |
| −5 | K030420 | Lightspeed 5.0 Computed Tomography System | GE Medical Systems | 2003 | 4 |
| −4 | K040372 | Lightspeed 7.0 CT Scanner System | Ge Medical Systems, LLC | 2004 | 5 |
| −3 | K061817 | Lightspeed 7.1 CT Scanner System | Ge Medical Systems, LLC | 2006 | 1 |
| −2 | K081105 | GE Lightspeed CT750 HD (Lightspeed 8.0) | GE Healthcare | 2008 | 5 |
| −1 | K120833 | Discovery CT750 HD | Ge Medical Systems, LLC | 2012 | 1 |
| 0 (this device) | K121827 | Gsi Viewer with Vue Option | GE Medical Systems SCS | 2012 | — |
| +1 | K223514 | Spectral Bone Marrow | Ge Medical Systems, LLC | 2023 | — |
| +1 | K180225 | GSI Viewer with GSI Fat Option | GE Medical Systems SCS | 2018 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2018 | 1 | 0 |
| 2023 | 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? (1)
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 |
|---|---|---|---|
| * | K120833 | Discovery CT750 HDSummary page 1…: GSI Viewer with MSI Option Classification Name: 21CFR 892.1750 Computed Tomography X-Ray system Product Code: JAK Predicate Devices: K120833 Discovery CT750 HO Device Description: The unmodified device Discovery CT750 H-D (K120833) offers the… | 2012 |
What descends from it? (2)
2 later devices cite it directly; ranked here by how many devices descend from each in turn.
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 11 years and passes through 4 companies; a new generation was cleared every 1.8 years on median.
- 6 of the 6 ancestors have a recall of any class.
- Of its descendants, K223514 (Ge Medical Systems, LLC, 2023) has gone furthest, with 0 descendants of its own.
- 2 other devices also cite its predicate K120833.
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. 2012, 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?
The GSI Viewer accepts images from a CT System that can acquire CT images using different kV levels of the same anatomical region of a patient in a single rotation from a single source. The differences in the energy dependence of the attenuation coefficient of the different materials provide information about the chemical composition of body materials. This approach enables images to be generated at energies selected from the available spectrum to…
Read the full statement (144 words)
The GSI Viewer accepts images from a CT System that can acquire CT images using different kV levels of the same anatomical region of a patient in a single rotation from a single source. The differences in the energy dependence of the attenuation coefficient of the different materials provide information about the chemical composition of body materials. This approach enables images to be generated at energies selected from the available spectrum to visualize and analyze information about anatomical and pathological structures.
GSI provides information of the chemical composition of renal calculi by calculation and graphical display of the spectrum of effective atomic number. GSI Kidney stone characterization provides additional information to aid in the characterization of uric acid versus non-uric acid stones. it is intended to be used on non-contrast studies as an adjunct to current standard methods for evaluating stone etiology and composition.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K121827 · printed Nov 5, 2026
Cite this page
510(k) Report. “K121827: Gsi Viewer with Vue Option.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K121827
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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