US6493571B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rapid magnetic resonance imaging and magnetic resonance angiography of multiple anatomical territories
Assignee: Corewell Health William Beaumont University Hospital
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Filing: 1998-04-10
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Granted: 2002-12-10
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Expires: 2018-04-10
Abstract
Abstract A procedure and apparatus are provided which allow rapid positional change in the patient centering in order to facilitate the imaging of blood vessels in a series of different views. This procedure and apparatus can also facilitate the imaging of other tissues of the body at different spatial locations as well. The procedure and apparatus reduce the time required for obtaining the necessary images for a medical imaging examination using a single injection of an MRI or iodinated contrast agent.
Inventors
- 👤 Kostaki G. Bis
- 👤 Anil N. Shetty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:01
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/41; A61B5/411; A61B5/05; A61B5/055; A61B5/70; A61B5/704; G; G01; G01R; G01R33/00; G01R33/20; G01R33/44; G01R33/48; G01R33/54; G01R33/56; G01R33/563; G01R33/56375; Y; Y10; Y10S; Y10S5/00; Y10S5/943
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
112 words
A diagnostic procedure using a magnetic resonance imaging device, comprising the steps of: laying a patient on a movable table and positioning said patient in a first position relative to said magnetic resonance imaging machine; injecting said patient with a contrast material; performing a first scan sequence of a first body portion with said magnetic resonance imaging machine; moving said patient to a second position relative to said magnetic resonance imaging machine; and performing a second scan sequence of a second body portion with said magnetic resonance imaging machine within a predetermined amount of time corresponding to travel of said contrast material from said first body portion to said second body portion.
Claim 2
Dependent Claim
112 words
A diagnostic procedure using a magnetic resonance imaging device, comprising the steps of: laying a patient on a movable table and positioning said patient in a first position relative to said magnetic resonance imaging machine; injecting said patient with a contrast material; performing a first scan sequence of a first body portion with said magnetic resonance imaging machine; moving said patient to a second position relative to said magnetic resonance imaging machine; and performing a second scan sequence of a second body portion with said magnetic resonance imaging machine within a predetermined amount of time corresponding to travel of said contrast material from said first body portion to said second body portion.
Claim 3
Dependent Claim
24 words
The diagnostic procedure according to claim 1 , wherein said contrast material is selected from a group consisting of gadopentetate dimeglumine, gadoteridol, and gadodiamide.
Claim 4
Dependent Claim
41 words
The diagnostic procedure according to claim 1 , wherein said magnetic resonance imaging machine includes a surface coil disposed under said movable table and a surface coil disposed over said table, said movable table being movable relative to said surface coils.
Claim 5
Dependent Claim
40 words
The diagnostic procedure according to claim 3 , wherein said surface coil disposed under said movable table does not move relative to magnetic resonance imaging machine from said performing a first scan sequence to said performing said second scan sequence.
Claim 6
Dependent Claim
40 words
The diagnostic procedure according to claim 4 , wherein said surface coil disposed over said movable table does not move relative to magnetic resonance imaging machine from said performing a first scan sequence to said performing said second scan sequence.
Claim 7
Dependent Claim
40 words
The diagnostic procedure according to claim 3 , wherein said surface coil disposed over said movable table does not move relative to magnetic resonance imaging machine from said performing a first scan sequence to said performing said second scan sequence.
Claim 8
Dependent Claim
107 words
A diagnostic procedure using a computed tomography machine, comprising the steps of: laying a patient on a movable table and positioning said patient in a first position relative to said computed tomography machine; injecting said patient with a contrast material; performing a first scan sequence of a first body portion with said computed tomography machine; moving said patient to a second position relative to said computed tomography machine; and performing a second scan sequence of a second body portion with said computed tomography machine within a predetermined amount of time corresponding to travel of said contrast material from said first body portion to said second body portion.
Claim 9
Dependent Claim
107 words
A diagnostic procedure using a computed tomography machine, comprising the steps of: laying a patient on a movable table and positioning said patient in a first position relative to said computed tomography machine; injecting said patient with a contrast material; performing a first scan sequence of a first body portion with said computed tomography machine; moving said patient to a second position relative to said computed tomography machine; and performing a second scan sequence of a second body portion with said computed tomography machine within a predetermined amount of time corresponding to travel of said contrast material from said first body portion to said second body portion.
Claim 10
Dependent Claim
23 words
The diagnostic procedure according to claim 7 , wherein said contrast material is selected from a group consisting of omnipaque, renograffin and hypaque.
Claim 11
Dependent Claim
135 words
A diagnostic procedure using a magnetic resonance imaging device, comprising the steps of: positioning a patient in a magnetic resonance imaging machine; injecting said patient with a contrast material; performing a first scan sequence with said magnetic resonance imaging machine to obtain a first image of a body portion; and performing a second scan sequence with said magnetic resonance imaging machine to obtain a second image of said body portion at a different orientation from said first scan sequence; wherein a delay period is provided between said steps of performing said first scan sequence and performing said second scan sequence, said delay period being long enough to allow a patient to breath between said first and second scan sequences but within an amount of time for said contrast material to pass from said body portion.
Claim 12
Dependent Claim
135 words
A diagnostic procedure using a magnetic resonance imaging device, comprising the steps of: positioning a patient in a magnetic resonance imaging machine; injecting said patient with a contrast material; performing a first scan sequence with said magnetic resonance imaging machine to obtain a first image of a body portion; and performing a second scan sequence with said magnetic resonance imaging machine to obtain a second image of said body portion at a different orientation from said first scan sequence; wherein a delay period is provided between said steps of performing said first scan sequence and performing said second scan sequence, said delay period being long enough to allow a patient to breath between said first and second scan sequences but within an amount of time for said contrast material to pass from said body portion.
Claim 13
Dependent Claim
24 words
The diagnostic procedure according to claim 9 , wherein said contrast material is selected from a group consisting of gadopentetate dimeglumine, gadoteridol, and gadodiamide.
References Cited (Backward Citations)
US4686692A
Cited
US4727328A
Cited
US4875485A
Cited
US5562094A
Cited
US6044289A
Cited
US5398686A
Cited
US5490508A
Cited
US5361763A
Cited
US5363844A
Cited
US5423315A
Cited
US5588430A
Cited
US5657757A
Cited
US5590429A
Cited
US6137291A
Cited
US5808468A
Cited
US5928148A
Cited
US6052476A
Cited
US5924987A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-12-09 | 2006-06-10 | 2006-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-12-09 | 2010-06-10 | 2010-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-12-09 | 2014-06-10 | 2014-12-10 | $7700.00 | Window Closed / Lapsed |