510(k) Report

510(k) · Cleared

Cleared

Perfusion CT (Computed Tomography) Software Package

K982536510(k) TraditionalCleared Nov 24, 1998126-day reviewClass II21 CFR 892.1750

Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly, last Nov 3, 2026

Siemens Corp. · JAK System, X-Ray, Tomography, Computed

Cleared on Nov 24, 1998 as substantially equivalent to K875088 (Siemens Medical Solutions USA, Inc., 1988) and 2 other predicates after a 126-day review. Its family tree reaches back 1 generation to 1988. 1 of the 200 devices in its family, counting itself, has a Class I recall. 196 later devices descend from it.

Decided
Nov 24, 1998
Review
126 days
Class
Class II
Product code
JAK
Recalls
None
Predicates
3

Its longest line of descent runs back 1 generation to K880965 (1988). 3 ancestors in all. 196 later devices descend from it, 2 citing it directly. 1 of the 200 devices in this family, counting this one, has a Class I recall.

Other ancestors, by year clearedDescendants, by year cleared 1991: 1 other ancestor1988: 1 other ancestor2001: 1 descendant cleared2003: 1 descendant cleared2005: 1 descendant cleared2008: 3 descendants cleared2006: 2 descendants cleared2007: 1 descendant cleared2012: 7 descendants cleared2013: 4 descendants cleared2009: 3 descendants cleared2014: 8 descendants cleared2015: 10 descendants cleared2017: 9 descendants cleared2016: 9 descendants cleared2018: 12 descendants cleared2010: 1 descendant cleared2025: 19 descendants cleared, 1 with a Class I recall12020: 19 descendants cleared2011: 2 descendants cleared2019: 12 descendants cleared2021: 8 descendants cleared2022: 16 descendants cleared2026: 16 descendants cleared2024: 16 descendants cleared2023: 16 descendants clearedK880965 · Somatom Plus · Siemens Medical Solutions USA, Inc. · 19881990200020102020
Other ancestors, by generationDescendants, by generation 1 generation back: 2 other ancestors 1 generation forward: 2 descendants2 generations forward: 3 descendants3 generations forward: 6 descendants4 generations forward: 12 descendants5 generations forward: 7 descendants6 generations forward: 15 descendants7 generations forward: 26 descendants8 generations forward: 21 descendants9 generations forward: 21 descendants10 generations forward: 24 descendants, 1 with a Class I recall111 generations forward: 18 descendants12 generations forward: 15 descendants13 generations forward: 7 descendants14 generations forward: 11 descendants15 generations forward: 4 descendants16 generations forward: 2 descendants17 generations forward: 1 descendant18 generations forward: 1 descendant K880965 · Somatom Plus · Siemens Medical Solutions USA, Inc. · 19880+5+10+15
  1. Root · 1 generation backK880965 Somatom PlusSiemens Medical Solutions USA, Inc. · 1988
  2. This deviceK982536 Perfusion CT (Computed Tomography) Software PackageSiemens Corp. · 1998
  3. Descendant · cites it directly · 194 of its ownK033832 Syngo Perfusion-CTSiemens AG Medical Solutions · 2003
  4. Descendant · 2 generations on · 192 of its ownK050867 Syngo Body Perfusion-CTSiemens AG · 2005
  5. Descendant · 3 generations on · 169 of its ownK062351 Syngo Dual EnergySiemens Medical Solutions USA, Inc. · 2006
  6. Descendant · 4 generations on · 168 of its ownK073003 Syngo Dual Energy with Extended FunctionallySiemens Medi Cal Solutions, Inc. · 2008
  7. Descendant · 5 generations on · 117 of its ownK083524 Syngo Dual Energy with Extended FunationallySiemens Medical Solutions USA, Inc. · 2009

Showing 5 of 196 descendants. See all descendants

Descendants cleared per year

2001: 12003: 12005: 12006: 22007: 12008: 32009: 32010: 12011: 22012: 72013: 42014: 82015: 102016: 92017: 92018: 122019: 122020: 192021: 82022: 162023: 162024: 162025: 192026: 16
2001high 19 (2020) · low 0 (2002)2026

Class I recalls in this family

Most influential descendants

Showing 5 of 196 · See all
  • K033832Syngo Perfusion-CTSiemens AG Medical Solutions · 2003 · cites it directly194descendants
  • K050867Syngo Body Perfusion-CTSiemens AG · 2005 · 2 generations on192descendants
  • K062351Syngo Dual EnergySiemens Medical Solutions USA, Inc. · 2006 · 3 generations on169descendants
  • K073003Syngo Dual Energy with Extended FunctionallySiemens Medi Cal Solutions, Inc. · 2008 · 4 generations on168descendants
  • K083524Syngo Dual Energy with Extended FunationallySiemens Medical Solutions USA, Inc. · 2009 · 5 generations on117descendants
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−1K880965Somatom PlusSiemens Medical Solutions USA, Inc.1988—
0 (this device)K982536Perfusion CT (Computed Tomography) Software PackageSiemens Corp.1998—
+1K033832Syngo Perfusion-CTSiemens AG Medical Solutions2003—
+2K050867Syngo Body Perfusion-CTSiemens AG2005—
+3K062351Syngo Dual EnergySiemens Medical Solutions USA, Inc.2006—
+4K073003Syngo Dual Energy with Extended FunctionallySiemens Medi Cal Solutions, Inc.2008—
+5K083524Syngo Dual Energy with Extended FunationallySiemens Medical Solutions USA, Inc.2009—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
198810
199110

Descendants by year cleared

Year clearedDevicesWith a Class I recall
200110
200310
200510
200620
200710
200830
200930
201010
201120
201270
201340
201480
2015100
201690
201790
2018120
2019120
2020190
202180
2022160
2023160
2024160
2025191
2026160
FIG. 1 — Lineage of K982536, 1988–2026Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

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Notable FDA decisions, review times and new Class I recalls. See an issue.

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 JAK device

  1. #1 K230223 iCAC Devicescore 23.5 · 12 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
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What was it cleared against? (3)

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.

TypeNumberDeviceApplicantDecidedRecalls
*K875088Xenon CT
Summary page 1
…OM Plus 4, SOMATOM AR.STAR, SOMATOM Classic), is substantially equivalent to the following devices: SIEMENS Device Name FDA Clearance Number FDA Clearance Date Xenon CT K875088 6/26/88 Dynamic CT option (Somatom AR) K910839 5/15/91 (Somatom Plus) K 880963 3/28/88 Perfusion CT images, as compared with Xen…
Siemens Medical Solutions USA, Inc.1988—
*K910839Ultimate 3000
Summary page 1
…s substantially equivalent to the following devices: SIEMENS Device Name FDA Clearance Number FDA Clearance Date Xenon CT K875088 6/26/88 Dynamic CT option (Somatom AR) K910839 5/15/91 (Somatom Plus) K 880963 3/28/88 Perfusion CT images, as compared with Xenon CT images and Dynamic CT images, are acquire…
Fonar Corp.1991—
*K880965Somatom Plus
Our OCR of the scanned summary read K880963, FDA’s number for Hac Autology Centers Dispensing Kit for Fib.Con. (Buckman Co., Inc.). Corrected to the number one digit away whose FDA name carries the summary’s words for the device, “Dynamic CT option (Somatom Plus)”.
Siemens Medical Solutions USA, Inc.1988—

What descends from it? (196)

See all 196

2 later devices cite it directly; ranked here by how many devices descend from each in turn.

NumberDeviceApplicantDecidedDescendants
K033832Syngo Perfusion-CTSiemens AG Medical Solutions2003194
K013214Cerebral Blood Flow Analysis System (CBP), Model Number CSCP-001AToshiba America Medical Systems, In.C20010

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 · 10 generations on · ◆ in the 2025 descendants bar of FIG. 12 Class I recalls

What does this lineage say?

  • None of the 3 ancestors has a recall.
  • Of its descendants, K033832 (Siemens AG Medical Solutions, 2003) has gone furthest, with 194 descendants of its own.

How does its category compare?

All JAK devices

JAK System, X-Ray, Tomography, Computed: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · JAK

27in 2025

2007: 142008: 262009: 152010: 72011: 162012: 282013: 172014: 302015: 302016: 252017: 292018: 242019: 282020: 302021: 202022: 302023: 272024: 262025: 272026 (partial year): 21
2007high 30 (2014) · low 7 (2010)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · JAK

141in 2025

2007: 27 days median2008: 42 days median2009: 31 days median2010: 92 days median2011: 155 days median2012: 121 days median2013: 132 days median2014: 200 days median2015: 140 days median2016: 129 days median2017: 96 days median2018: 114 days median2019: 94 days median2020: 112 days median2021: 145 days median2022: 131 days median2023: 139 days median2024: 141 days median2025: 141 days median2026 (partial year): 167 days median
2007high 200 (2014) · low 27 (2007)2026

Receipt to decision; years with fewer than 3 clearances left blank.

Recalls per year · JAK

17in 2025

2007: 112008: 162009: 292010: 512011: 342012: 232013: 112014: 102015: 282016: 442017: 332018: 102019: 52020: 82021: 152022: 92023: 92024: 202025: 172026 (partial year): 23
2007high 51 (2010) · low 5 (2019)2026

Class I (0 since 2007) Class II/III not classified

Adverse event reports per year · JAK

219in 2025

2007: 762008: 1202009: 1052010: 1192011: 2052012: 1922013: 4142014: 3082015: 4542016: 3652017: 3382018: 5432019: 2332020: 1772021: 2612022: 1992023: 3102024: 2122025: 219
2007high 543 (2018) · low 76 (2007)2025

MAUDE reports naming product code JAK, not matched to any one device; reports are not rates.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
200714271176
2008264216120
2009153129105
201079251119
20111615534205
20122812123192
20131713211414
20143020010308
20153014028454
20162512944365
2017299633338
20182411410543
201928945233
2020301128177
20212014515261
2022301319199
2023271399310
20242614120212
20252714117219
20262116723—

What is it indicated for?

Perfusion CT is an application software package that permits cerebral perfusion imaging based on dynamic CT images continuously acquired after the injection of contrast. The package allows visualization of apparent blood flow in brain tissue and pictorially illustrates perfusion related parameters (i.e. relative cercbral blood flow, rclative cerebral blood volume, time to peak). By generating images of cerebral blood flow (CBF), cerebral blood volume…

Read the full statement (117 words)

Perfusion CT is an application software package that permits cerebral perfusion imaging based on dynamic CT images continuously acquired after the injection of contrast. The package allows visualization of apparent blood flow in brain tissue and pictorially illustrates perfusion related parameters (i.e. relative cercbral blood flow, rclative cerebral blood volume, time to peak). By generating images of cerebral blood flow (CBF), cerebral blood volume (CBV), and local bolus timing (i.e. time to peak) from one set of dynamic CT images, Perfusion CT aids the physician in the assessment of the type and extent of cerebral perfusion disturbances. The software package also allows the calculation of mirrored regions of interest and the visual inspection of time density curves.

Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.

Cite this page

510(k) Report. “K982536: Perfusion CT (Computed Tomography) Software Package.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K982536

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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