510(k) · Cleared
ClearedSyngo Trued
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Siemens Medical Solutions USA, Inc. · LLZ System, Image Processing, Radiological
Cleared on May 20, 2009 as substantially equivalent to K071950 (Siemens Medical Solutions USA, Inc., 2007) and 4 other predicates after a 9-day review. Its family tree reaches back 8 generations to 1991. 1 of the 292 devices in its family, counting itself, has a Class I recall. 200 later devices descend from it.
- Decided
- May 20, 2009
- Review
- 9 days
- Class
- Class II
- Product code
- LLZ
- Recalls
- None
- Predicates
- 5
Its longest line of descent runs back 8 generations to K913770 (1991). 91 ancestors in all, the oldest K871859 (1987). 200 later devices descend from it, 5 citing it directly. 1 of the 292 devices in this family, counting this one, has a Class I recall.
- Root · 8 generations backK913770 Advantage V.S. CT/MR Rad Diagnostic WorkstationGeneral Electric Co. · 1991
- 7 generations backK963345 Advantage Windows Tissue Volume OptionGE Medical Systems · 1996
- 6 generations backK013381 Advanced Lung Analysis-1General Electric Co. · 2001
- 5 generations backK022013 Lungcare CT Software PackageSiemens Medical Solutions USA, Inc. · 2002
- 4 generations backK033374 Lungcare CT Software Package with Extended FunctionalitySiemens AG Medical Solutions · 2003
- 3 generations backK041484 UndecidedSiemens Medical Solutions USA, Inc. · 2004
- 2 generations backK053301 Cedara I-Response Cedara Pet/CTCedara Software Corp. · 2006
- 1 generation backK071950 Syngo TruedSiemens Medical Solutions USA, Inc. · 2007
- This deviceK091373 Syngo TruedSiemens Medical Solutions USA, Inc. · 2009
- Descendant · cites it directly · 76 of its ownK101749 Syngo Trued SoftwareSiemens Medical Solutions · 2010
- Descendant · cites it directly · 70 of its ownK101228 Mirada XDMirada Medical, Ltd. · 2010
- Descendant · 2 generations on · 63 of its ownK123920 Syngo.ViaSiemens AG Medical Solutions · 2013
- Descendant · cites it directly · 54 of its ownK093621 Syngo.Pet&CT OncologySiemens Medical Solutions USA, Inc. · 2010
- Descendant · 3 generations on · 46 of its ownK150843 syngo®.via (version VB10A)Siemens AG · 2015
Showing 5 of 200 descendants. See all descendants
Descendants cleared per year
Class I recalls in this family
- K250443 MAGNETOM Avanto Fit; MAGNETOM Skyra Fit…5 generations on · 2025
Most influential descendants
Showing 5 of 200 · See all- K101749Syngo Trued SoftwareSiemens Medical Solutions · 2010 · cites it directly76descendants
- K101228Mirada XDMirada Medical, Ltd. · 2010 · cites it directly70descendants
- K123920Syngo.ViaSiemens AG Medical Solutions · 2013 · 2 generations on63descendants
- K093621Syngo.Pet&CT OncologySiemens Medical Solutions USA, Inc. · 2010 · cites it directly54descendants
- K150843syngo®.via (version VB10A)Siemens AG · 2015 · 3 generations on46descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −8 | K913770 | Advantage V.S. CT/MR Rad Diagnostic Workstation | General Electric Co. | 1991 | — |
| −7 | K963345 | Advantage Windows Tissue Volume Option | GE Medical Systems | 1996 | — |
| −6 | K013381 | Advanced Lung Analysis-1 | General Electric Co. | 2001 | — |
| −5 | K022013 | Lungcare CT Software Package | Siemens Medical Solutions USA, Inc. | 2002 | — |
| −4 | K033374 | Lungcare CT Software Package with Extended Functionality | Siemens AG Medical Solutions | 2003 | — |
| −3 | K041484 | Undecided | Siemens Medical Solutions USA, Inc. | 2004 | — |
| −2 | K053301 | Cedara I-Response Cedara Pet/CT | Cedara Software Corp. | 2006 | — |
| −1 | K071950 | Syngo Trued | Siemens Medical Solutions USA, Inc. | 2007 | — |
| 0 (this device) | K091373 | Syngo Trued | Siemens Medical Solutions USA, Inc. | 2009 | — |
| +1 | K101749 | Syngo Trued Software | Siemens Medical Solutions | 2010 | — |
| +1 | K101228 | Mirada XD | Mirada Medical, Ltd. | 2010 | — |
| +2 | K123920 | Syngo.Via | Siemens AG Medical Solutions | 2013 | — |
| +1 | K093621 | Syngo.Pet&CT Oncology | Siemens Medical Solutions USA, Inc. | 2010 | — |
| +3 | K150843 | syngo®.via (version VB10A) | Siemens AG | 2015 | — |
Other ancestors by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 1987 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 7 | 0 |
| 1999 | 3 | 0 |
| 2000 | 6 | 0 |
| 2001 | 10 | 0 |
| 2002 | 10 | 0 |
| 2003 | 3 | 0 |
| 2004 | 9 | 0 |
| 2005 | 3 | 0 |
| 2006 | 2 | 0 |
| 2007 | 3 | 0 |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2010 | 4 | 0 |
| 2011 | 2 | 0 |
| 2012 | 3 | 0 |
| 2013 | 4 | 0 |
| 2014 | 4 | 0 |
| 2015 | 6 | 0 |
| 2016 | 8 | 0 |
| 2017 | 9 | 0 |
| 2018 | 15 | 0 |
| 2019 | 13 | 0 |
| 2020 | 20 | 0 |
| 2021 | 13 | 0 |
| 2022 | 21 | 0 |
| 2023 | 17 | 0 |
| 2024 | 18 | 0 |
| 2025 | 21 | 1 |
| 2026 | 22 | 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.
1 device in this family has a Class I recall. 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 LLZ device
- #1 K230955 syngo Application Softwarescore 21.5 · 11 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
What was it cleared against? (5)
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 |
|---|---|---|---|
| * | K071950 | Syngo TruedSummary page 2…evices: PredicateDevice Name 'DA Clearance Number TrueD K071950 GE PET VCAR K063324 MiMVista (Mim Contouring)… | 2007 |
| * | K063324 | Pet VcarSummary page 2…learance Number TrueD K071950 GE PET VCAR K063324 MiMVista (Mim Contouring) K071964 GE Advantage 4D Option… | 2007 |
| * | K071964 | Mim 4.1 (Seastar)Summary page 2…K071950 GE PET VCAR K063324 MiMVista (Mim Contouring) K071964 GE Advantage 4D Option K032915 Siemens syngo Circulation… | 2007 |
| * | K032915 | Advantage 4D OptionSummary page 2…K063324 MiMVista (Mim Contouring) K071964 GE Advantage 4D Option K032915 Siemens syngo Circulation K063762 In summary, Siemens is of the opinion that the… | 2003 |
| * | K063762 | Syngo Circulation Software Package with Extended FunctionalitySummary page 2…K071964 GE Advantage 4D Option K032915 Siemens syngo Circulation K063762 In summary, Siemens is of the opinion that the indicated change to the syngo TrueD software, as described within this submission… | 2007 |
What descends from it? (200)
See all 2005 later devices cite it directly; ranked here by how many devices descend from each in turn.
Has anything in its family been recalled? (1 Class I)
No FDA recall names this device.
Relatives with a Class I recall
Class I is FDA’s most serious recall class. A recall in the family tree is context for this device, not evidence about it.
- K250443MAGNETOM Avanto Fit; MAGNETOM Skyra Fit; MAGNETOM Sola Fit; MAGNETOM Viato.MobileSiemens Healthcare GmbH · 2025 · 5 generations on · ◆ in the 2025 descendants bar of FIG. 12 Class I recalls
What does this lineage say?
- The line of descent spans 18 years and passes through 5 companies; a new generation was cleared every 1.5 years on median.
- 20 of the 91 ancestors have a recall of any class.
- Of its descendants, K101749 (Siemens Medical Solutions, 2010) has gone furthest, with 76 descendants of its own.
How does its category compare?
All LLZ devicesLLZ System, Image Processing, Radiological: FDA decisions, review times, recalls and adverse event reports over 20 years. 2009, this device’s year, is highlighted.
FDA decisions per year · LLZ
58in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · LLZ
173in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · LLZ
11in 2025
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · LLZ
116in 2025
MAUDE reports naming product code LLZ, 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 | 76 | 36 | 20 | 152 |
| 2008 | 94 | 52 | 32 | 154 |
| 2009 | 70 | 62 | 21 | 145 |
| 2010 | 51 | 98 | 17 | 145 |
| 2011 | 106 | 79 | 30 | 454 |
| 2012 | 82 | 87 | 12 | 266 |
| 2013 | 95 | 84 | 64 | 1,130 |
| 2014 | 78 | 89 | 6 | 15,631 |
| 2015 | 64 | 90 | 16 | 211 |
| 2016 | 82 | 90 | 12 | 290 |
| 2017 | 78 | 107 | 5 | 104 |
| 2018 | 104 | 105 | 7 | 72 |
| 2019 | 74 | 107 | 2 | 88 |
| 2020 | 81 | 115 | 6 | 82 |
| 2021 | 83 | 116 | 3 | 70 |
| 2022 | 65 | 137 | 4 | 28 |
| 2023 | 87 | 157 | 8 | 26 |
| 2024 | 62 | 131 | 6 | 42 |
| 2025 | 58 | 173 | 11 | 116 |
| 2026 | 45 | 110 | 14 | — |
What is it indicated for?
syngo TrueD is a medical diagnostic application for viewing, manipulation, 3D- visualization and comparison of medical images from multiple imaging modalities and/or multiple time-points. The application supports functional data, such as PET or SPECT as well as anatomical datasets, such as CT or MR. The images can be viewed in a number of output formats including MIP and volume rendering. syngo TrueD enables visualization of information that would…
Read the full statement (220 words)
syngo TrueD is a medical diagnostic application for viewing, manipulation, 3D- visualization and comparison of medical images from multiple imaging modalities and/or multiple time-points. The application supports functional data, such as PET or SPECT as well as anatomical datasets, such as CT or MR. The images can be viewed in a number of output formats including MIP and volume rendering.
syngo TrueD enables visualization of information that would otherwise have to be visually compared disjointedly. syngo TrueD provides analytical tools to help the user assess, and document changes in morphological or functional activity at diagnostic and therapy follow-up examinations.
syngo TrueD is designed to support the oncological.workflow by helping the user to confirm the absence or presence of lesions, including evaluation, quantification, follow-up and documentation of any such lesions. The application allows to store and export volume of interest (VOl) structures in DICOM RT format for use in radiation therapy planning systems.
syngo TrueD a/lows visualization and analysis of respiratory gated studies to support accurate delineation of the target or treatmentvolume over a defined phase of the respiratory cycle and thus provide information for radiationtherapy planning.
Note: The clinician retains the ultimate responsibility for making the pertinent diagnosis based on their standard practices and visual comparison of the separate unregistered images. syngo TrueD is a complement to these standard procedures.
Indications for use as stated in the FDA summary.
https://510kreport.com/device/K091373 · printed Nov 6, 2026
Cite this page
510(k) Report. “K091373: Syngo Trued.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K091373
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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