Surgery – Diagnostic testing – Detecting nuclear – electromagnetic – or ultrasonic radiation
Reexamination Certificate
2008-07-22
2008-07-22
Smith, Ruth S. (Department: 3737)
Surgery
Diagnostic testing
Detecting nuclear, electromagnetic, or ultrasonic radiation
C600S420000
Reexamination Certificate
active
10848950
ABSTRACT:
In a method and apparatus for contrast-enhanced magnetic resonance (MR) angiography of the right coronary artery of a patient, a bolus of MR contrast agent is selected to have a size that will cause the bolus, after injection into the patient, to wash out of right coronary chambers of the heart while still enhancing MR signals from the right coronary artery. The bolus of MR contrast agent is injected into the patient, and MR signals are generated in, and MR signals are obtained from, the patient in a time window after the bolus has washed out of the right coronary chambers and still enhances MR signals in the right coronary artery. An MR image of the right coronary artery is generated using only the MR signals obtained in the time window.
REFERENCES:
patent: 4893627 (1990-01-01), Kehayias et al.
patent: 5256967 (1993-10-01), Foo et al.
patent: 5588431 (1996-12-01), Mani et al.
patent: 6198959 (2001-03-01), Wang
patent: 7082326 (2006-07-01), Johansson
patent: 2004/0114787 (2004-06-01), Papgeorgiou et al.
“Coronary Arteries: Magnetization-prepared Contrast-enhanced Three-dimensional Volume-targeted Breath-hold MR Angiography,” Li et al., Radiology, 219 (2001), pp. 270-277.
“Coronary Magnetic Resonance Angiography For the Detection of Coronary Stenoses,” Kim et al, N. Engl. J. Med. vol. 345, No. 26 (Dec. 27, 2001), pp. 1863-1869.
“Whole-Heart Steady-State Free Precession Coronary Artery Magnetic Resonance Angiography,” Weber et al, Nag. Res. Ind., vol. 50 (2003) pp. 1223-1228.
“‘Soap-Bubble’ Visualization and Quantitative Analysis of 3D Coronary Magnetic Resonance Angiograms,” Etienne et al, Nag. Res. In Med., vol. 48, (2002) pp. 556-666.
“Coronary Artery Imaging Using Contrast-Enhanced 3D Segmented EPI,” Dashpande et al, J. of Mag. Res. Imaging, vol. 13 (2001) pp. 676-681.
“Analysis of Cardiopulmonary Transit Times at Contrast Material-enhanced MR Imaging in Patients with Heart Disease,” Francois et al, Radiology, vol. 227 (2003) pp. 447-452.
“Background Suppression with Multiple Inversion Recovery Nulling: Applications to Projective Angiography,” Pauly et al, Mag. Res. In Med., vol. 37, No. 6 (1997), pp. 898-905.
“Measurement of Signal Intensities in the Presence of Noise in MR Images,” Henkelman, Med. Phys., vol. 12, No. 2 (1985), pp. 232-233.
“Selective Three-Dimensional Visualization of the Coronary Arterial Lumen Using Arterial Spin Tagging,” Stuber et al, Mag. Res. In Med., vol. 47 (2002), pp. 322-329.
“Echo-Planar MR Imaging of Normal and Ischemic Myocardium with Gadodiamide Injection,” Wendland et al, Radiology, vol. 86, (1993), pp. 532-542.
“The Use of Contrast-Enhanced Magnetic Resonance Imaging To Identify Reversible Myocardial Dysfunction,” Kim et al, N. Engl. J. Med., vol. 343, No. 20 (2000), pp. 1445-1453.
“Contrast-Enhanced Coronary Artery Imaging Using 3D TrueFISP,” Deshpande et al, Mag. Res. In Med. (2003).
Coronary Arteries: Breath-hold Gadolinium-Enhanced, Three-Dimensional MR Angiography, Goldfarb et al, Radiology, vol. 206 (1998), pp. 830-834.
Green Jordin D.
Li Debiao
Cwern Jonathan G
Northwestern University
Schiff & Hardin LLP
Smith Ruth S.
LandOfFree
Time resolved contrast-enhanced MR projection imaging of the... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Time resolved contrast-enhanced MR projection imaging of the..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Time resolved contrast-enhanced MR projection imaging of the... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3913499