Surgery – Diagnostic testing – Detecting nuclear – electromagnetic – or ultrasonic radiation
Reexamination Certificate
2003-07-18
2009-10-13
Smith, Ruth S (Department: 3737)
Surgery
Diagnostic testing
Detecting nuclear, electromagnetic, or ultrasonic radiation
C600S436000, C378S004000, C250S363030, C250S363040
Reexamination Certificate
active
07603165
ABSTRACT:
A combined PET and X-Ray CT tomograph for acquiring CT and PET images sequentially in a single device, overcoming alignment problems due to internal organ movement, variations in scanner bed profile, and positioning of the patient for the scan. In order to achieve good signal-to-noise (SNR) for imaging any region of the body, an improvement to both the CT-based attenuation correction procedure and the uniformity of the noise structure in the PET emission scan is provided. The PET/CT scanner includes an X-ray CT and two arrays of PET detectors mounted on a single support within the same gantry, and rotate the support to acquire a full projection data set for both imaging modalities. The tomograph acquires functional and anatomical images which are accurately co-registered, without the use of external markers or internal landmarks.
REFERENCES:
patent: 5376795 (1994-12-01), Hasegawa et al.
patent: 5969358 (1999-10-01), DiFilippo et al.
patent: 6205347 (2001-03-01), Morgan et al.
patent: 6339223 (2002-01-01), Motomura et al.
Beyer et al., “The use of X-ray CT for Attenuation Correction of PET Data,” IEEE, Mar. 1995, pp. 1573-1577.
A.C. Evans, et al., “MRI-PET Correlation in Three Dimensions Using a Volume-of-Interest (VOI) Atlas,” Journal of Cerebral Blood Flow & Metabolism, A69-A78, 1991.
D.G. Thomas et al., “Use of relocatable stereotactic frame to integrate positron emission tomography and computed tomography images: application to human malignant brain tumors,” Stereotactic and Functional Neurosurgery, 388-392, 1990.
C.A. Pelizzari et al., “Accurate three-dimensional registration of CT, PET and MR images of the brain,” J Comp Assist Tomogr, 2026, 1989.
R.P. Woods et al., “Rapid automated algorithm for aligning and reslicing PET images,” J Comp Assist Tomogr, 620-633, 1992.
R.P. Woods et al., “MRI-PET registration with an automated algorithm,” J Comp Assist Tomogr, 536-546, 1993.
U. Peitrzyk et al., “Three-dimensional alignment of functional and morphological tomograms,” J Comp Assist Tomogr, 51-59, 1990.
R. L. Wahl et al., “Anatometabolic' tumor imaging: fusion of FDG PET with CT or MRI to localize foci of increased activity,” J. NUcl. Med., 1190-1197, 1993.
T.F. Lang et al., “A prototype emission-transmission imaging system,” IEEE Nucl. Sci., Symposium Conf. Record, 1902-1906, 1991.
T.F. Lang et al., “Description of a prototype emission-transmission computed tomography imaging system,” J. Nucl. Med., 1881-1887, 1992.
J.S. Fleming, “A technique for using CT images in attenuation correction and quantification in SPECT,” Nucl. Med. Commun, 83-97, 1989.
S.C. Moore, “Attenuation compensation” in Ell, P.J. et al., Computed Emission Tomography, London, Oxford University Press, 339-360, 1982.
B.H. Hasegawa et al., “Object specific attenuation correction of SPECT with correlated dual-energy X-ray CT,” IEEE Trans. Nucl. Sci., 1242-1252, 1993.
K.J. LaCroix et al., “Investigation of the use of X-ray CT images for attenuation compensation in SPECT,” IEEE 1993 Medical Imaging Conference Record, 1994.
S.C. Huang et al., “Quantitation in positron emission tomography: 2. Effects of inaccurate attenuation correction,” J. Comput Assist Tomogr, 804-814, 1979.
W.F. Jones et al., “Optimizing rod window width in positron emission tomography,” IEEE 1992 Medical Imaging Conference Record, 982-984, 1993.
R.A. de Kamp et al., “Attenuation correction in Pet using single photon transmission measurement,” Med. Phys., 771-778, 1994.
Qu He et al., “Attenuation correction in PET using a singles transmission source,” J. Nucl Med., 41P, 1994.
R.E. Alvarez et al., “Energy-selective reconstructions in X-ray computerized tomography,” Phys Med Biol., 733-744, 1976.
D.E. Avrin et al., “Clinical applications of Compton and photo-electric reconstruction in computed tomography: preliminary results,” Invest Radiol, 217-222, 1978.
M. Bergstrom et al., “Correction for scattered radiation in a ring detector positron camera by integral transform of the projections,” J. Comput. Assist. Tomogr., 42-50, 1983.
M. Endo et al., “Sofware correction of scatter coincidence in positron CT,” Eur. J. Nucl. Med., 391-396, 1984.
S.R. Cherry et al., “Correction and characterization of scattered events in three dimensional PET using scanner with retractable septa,” J Nucl Med, 671-678, 1993.
D.L. Bailey et al., “A convolution-subtraction scatter correction method for 3D PET,” Phys Med Biol., 412-424, 1994.
D. Gagnon et al., “Introduction to holospectral imaging in nuclear medicine for scatter subtraction,” IEEE Trans Med Imaging, 245-250, 1989.
S. Grootoonk et al., “Correction for scatter using a dual energy window technique with a tomograph operating without septa,” IEEE 1991 Medical Imaging Conference Record, 1569-1573, 1992.
B. Bendriem, et al., “A PET scatter correction using simultaneous acquisitions with low and high lower energy thresholds,” IDDD 1993 Medical Imaging Conference Record, 1779-1783, 1994.
J.M. Ollinger, “Model-based scatter correction for fully 3D PET,” Phys Med Biol., 153-176, 1996.
C.C. Watson, D. Newport, and M.E. Casey, “A single scatter simulation technique for scatter correction in 3D PET” in: Grangeat P and J-L Amans, Three Dimensional Image Reconstruction in Radiology and Nuclear Medicine, Dordrecht: Kluwer Academic, 255-268, 1996.
R. Leahy et al., “Incorporation of anatomical MR data for improved functional imaging with PET,” Information Processing in Medical Imaging, XIIth IPMI International Cnference Record, 1201-1203, 1993.
Z. Zhou et al., “A comparative study of the effects of using anatomical priors in PET reconstruction,” IEEE 1993 Medical Imaging Conference Record, 1749-1753, 1994.
Blankespoor et al., “Attenuation Correction of SPECT Using X-Ray CT on an Emission-Transmission CT System: Myocardial Perfusion Assessment,” IEEE Transactions on Nuclear Science, Aug. 1996, pp. 2263-2274, vol. 43, No. 4.
Blankespoor et al., “Development of an Emission-Transmission CT System Combining X-Ray CT and SPECT,” IEEE, Mar. 1995, pp. 1758-1761.
Nutt Ronald
Townsend David W.
Siemens Medical Solutions USA , Inc.
Smith Ruth S
LandOfFree
Method for acquiring PET and CT images does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for acquiring PET and CT images, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for acquiring PET and CT images will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4081583