Background suppression method for time-resolved magnetic...

Surgery – Diagnostic testing – Detecting nuclear – electromagnetic – or ultrasonic radiation

Reexamination Certificate

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C600S420000, C600S419000, C324S306000, C324S307000

Reexamination Certificate

active

07343193

ABSTRACT:
A 3D projection reconstruction pulse sequence is employed during a CEMRA dynamic study to acquire a time course series of k-space data sets. Signals from non-vascular voxels are suppressed by reconstructing a corresponding series of low resolution images using the centers of the acquired k-space data sets, and measuring the degree to which the signal behavior of voxels therein differ from a model of unwanted signal. Signals from voxels which do not differ from the model are suppressed and the resulting filtered low resolution images are transformed back to k-space and combined with the originally acquired peripheral k-space data to form complete, filtered k-space data sets from which images may be reconstructed.

REFERENCES:
patent: 5417213 (1995-05-01), Prince
patent: 5603322 (1997-02-01), Jesmanowicz et al.
patent: 5792056 (1998-08-01), Prince
patent: 5827187 (1998-10-01), Wang et al.
patent: 5830143 (1998-11-01), Mistretta et al.
patent: 5933540 (1999-08-01), Lakshminarayanan et al.
patent: 6073042 (2000-06-01), Simonetti
patent: 6381486 (2002-04-01), Mistretta et al.
patent: 6477399 (2002-11-01), Biswal et al.
patent: 6487435 (2002-11-01), Mistretta et al.
patent: 6490472 (2002-12-01), Li et al.
patent: 6556856 (2003-04-01), Mistretta et al.
patent: 6980875 (2005-12-01), Stromberg
patent: 2002/0082496 (2002-06-01), Kuth
patent: 2004/0027127 (2004-02-01), Mills
patent: 2004/0204643 (2004-10-01), Jesmanowicz
Yousef Mazaheri, et al, Combined Time-Resolved and High-Spatial-Resolution 3D MRA Using an Extended Adaptive Acquisition, Journ. of Mag. Reson. Imaging, 15:291-301 (2002).
A Arunachalama et al, Post-Processing Background Suppression in Time-Resolved MRA Without Mask Acquisitions or Operator Intervention, Proc. Intl. Soc. Mag. Reson. Med. 11 (2003) p. 781.
Michael Bock et al, Separation of Arteries and Veins and 3D MR Angiogrpahy Using Correlation Analysis, Mag. Reson. in Med. 43:481-487 (2000).
Anne L. Martel, et al, Separating Arterial and Venous Components From 3D Dynamic Contrast-Enhanced MRI Studies Using Factor Analysis, Mag. Reson. in Med. 49:928-933 (2003).
Barger, et al; Time-Resonved Contrast-Enhanced Imaging With Isotropic Resolution and Broad Coverage Using an Undersampled 3D Projection Trajectory; Magnetic Resonance in Medicine, 48:297-305 (2002).

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