G01R 33/56333
Involving spatial modulation of the magnetization within an imaged region
Official title: {Involving spatial modulation of the magnetization within an imaged region, e.g. spatial modulation of magnetization [SPAMM] tagging (perfusion imaging based on arterial spin tagging G01R33/56366)}
G01R33/56333 (Involving spatial modulation of the magnetization within an imaged region) appears on 83 US grants and 65 published applications in this corpus.
Search patents in G01R- Granted patents
- 83
- Published applications
- 65
- Assignees
- 46
- Inventors
- 141
- Latest grant
- 16 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 5 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 2 |
| 2002 | 1 | 1 |
| 2003 | 3 | 1 |
| 2004 | 2 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 1 |
| 2007 | 1 | 2 |
| 2008 | 1 | 3 |
| 2009 | 1 | 2 |
| 2010 | 4 | 7 |
| 2011 | 4 | 8 |
| 2012 | 3 | 4 |
| 2013 | 8 | 7 |
| 2014 | 4 | 2 |
| 2015 | 3 | 2 |
| 2016 | 4 | 5 |
| 2017 | 6 | 3 |
| 2018 | 2 | 4 |
| 2019 | 6 | 0 |
| 2020 | 4 | 4 |
| 2021 | 3 | 0 |
| 2022 | 0 | 2 |
| 2023 | 1 | 0 |
| 2024 | 0 | 1 |
| 2025 | 2 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Perfusion measurement with low field NMR16 Dec 2025US 12,495,983 B2Wellumio Limited
- Method for marking an entry position for an injection apparatus in interventional mr imaging15 Jul 2025US 12,357,415 B2Siemens Healthineers AG
- Method for measuring water exchange across the blood-brain barrier using MRI28 Nov 2023US 11,826,134 B2University of Southern California
- Magnetic resonance method and apparatus for determining a characteristic of an organ27 Jul 2021US 11,071,469 B2Siemens Healthcare GmbH
- Magnetic resonance imaging method and magnetic resonance imaging apparatus27 Jul 2021US 11,073,586 B2Canon Medical Systems Corporation
- Systems and methods for myocardial strain analysis using magnetic resonance imaging4 Dec 2025US 2025/0370078 A1The Curators of the University of Missouri
- Artificial intelligence physics-based modeling of cardiac parameters8 May 2025US 2025/0148707 A1Delbeat, Inc.
- Perfusion measurement with low field nmr6 Jun 2024US 2024/0180439 A1Wellumio Limited
- Method for Marking an Entry Position for an Injection Apparatus in Interventional MR Imaging15 Dec 2022US 2022/0395349 A1Siemens Healthcare GmbH
- System and method for magnetization-prepared three-dimensional unbalanced steady-state free precession magnetic resonance imaging15 Sep 2022US 2022/0291319 A1
Most cited
By later US patents
- Method for producing high resolution real-time images, of structure and function during medical procedures335US 6,556,695 B1Mayo Foundation for Medical Education and Research · 2003
- Quantitative blood flow measurement using steady-state transport-induced adiabatic fast passage79US 5,417,214 AThe Trustees of the University of Pennsylvania · 1995
- Method for measuring myocardial motion and the like66US 6,171,241 B2The Johns Hopkins University School of Medicine · 2001
- Magnetic resonance angiography by sequential multiple thin slab three dimensional acquisition63US 5,167,232 AIHC Hospitals, Inc. · 1992
- Cardiac motion tracking using cine harmonic phase (HARP) magnetic resonance imaging63US 6,892,089 B1The Johns Hopkins University · 2005