Radiant energy – Invisible radiant energy responsive electric signalling – With or including a luminophor
Patent
1997-07-03
1998-12-08
Porta, David P.
Radiant energy
Invisible radiant energy responsive electric signalling
With or including a luminophor
250366, G01T 120
Patent
active
058473963
ABSTRACT:
A high-energy photon imaging system including an imaging head, a signal processor, a data acquisition system and an image processing computer. The imaging head includes a detector comprising a plurality of closely-packed detection modules. Each detection module comprises a plurality of detection elements mounted to a circuit carrier. The detection elements produce electrical pulses having amplitudes indicative of the magnitude of radiation absorbed by the detection elements. The circuit carrier includes channels for conditioning and processing the signals generated by corresponding detection elements and for preparing the processed signals for further processing by a signal processor. Each conditioning and processing channel stores the amplitudes of the detection element electrical pulses exceeding a predetermined threshold. The detection modules employ a fall-through circuit which automatically finds only those detection elements that have a stored pulse amplitude exceeding the threshold. The fall-through circuit searches for the next detection element and associated channel having a valid event. The signal processor performs diagnostics, gain normalization, and response efficiency normalization functions. The data acquisition system controls the acquisition and processing of data received from the conditioning and processing channels, produces image data based upon the data in a format that is compatible with existing imaging cameras, and transmits the data to the image processing computer. The image processing computer formulates images based upon the processed signals and displays the formulated images on a display device.
REFERENCES:
patent: 2980500 (1961-04-01), Miller et al.
patent: 3188594 (1965-07-01), Koller et al.
patent: 3372997 (1968-03-01), Bither et al.
patent: 3390090 (1968-06-01), Taylor et al.
patent: 3418471 (1968-12-01), Gydesen et al.
patent: 3540859 (1970-11-01), Taylor et al.
patent: 3721938 (1973-03-01), Entine et al.
patent: 3999071 (1976-12-01), Siffert et al.
patent: 4047037 (1977-10-01), Gerber et al.
patent: 4055766 (1977-10-01), Miller et al.
patent: 4243885 (1981-01-01), Agouridis et al.
patent: 4245158 (1981-01-01), Burstein et al.
patent: 4255659 (1981-03-01), Kaufman et al.
patent: 4292645 (1981-11-01), Schlosser et al.
patent: 4571494 (1996-02-01), Nishiki et al.
patent: 4633881 (1987-01-01), Moore et al.
patent: 4651005 (1987-03-01), Baba et al.
patent: 4672207 (1987-06-01), Derenzo
patent: 4682604 (1987-07-01), Fymat et al.
patent: 4755679 (1988-07-01), Wong
patent: 4794257 (1988-12-01), Baba et al.
patent: 4846187 (1989-07-01), Siegel
patent: 4882680 (1989-11-01), Bonnefoy-Claudet et al.
patent: 4911905 (1990-03-01), Weirauch
patent: 4920969 (1990-05-01), Suzuki et al.
patent: 4950897 (1990-08-01), Mandelis et al.
patent: 4980553 (1990-12-01), Henry
patent: 5005193 (1991-04-01), Lanza et al.
patent: 5007427 (1991-04-01), Suzuki et al.
patent: 5027817 (1991-07-01), John
patent: 5036201 (1991-07-01), Carroll et al.
patent: 5057690 (1991-10-01), Morgan et al.
patent: 5072458 (1991-12-01), Suzuki
patent: 5085325 (1992-02-01), Jones et al.
patent: 5111818 (1992-05-01), Suzuki et al.
patent: 5119818 (1992-06-01), Carroll et al.
patent: 5132542 (1992-07-01), Bassalleck et al.
patent: 5138167 (1992-08-01), Barnes
patent: 5742060 (1998-11-01), Ashburn
Butler, et al., Progress in cd1-xZnxTe (CZT) Radiation Detectors, MRS-93 Conference, April 12, San Fransisco, CA, 1993. no month.
Butler, et al., Recent developments in CdZnTe gamma ray detector technology, SPIE International Symposium, Jul. 19, San Diego, CA, 1992. no month.
Butler, et al., Cadmium Zinc Telluride Detectors For Industrial Radiation Measurement, 2nd Topical Meeting on Industrial Radiation and Radioisotope Measurement Applications, Raleigh, Sep. 8, 1992.
Butler, et al., CdZnTe Detector Arrays for Nuclear Medicine Imaging, IEEE Nuclear Science, Nov. 2, San Fransisco, CA, 1993. no month.
Butler, et al., Cd1-xZnxTe Detector Imaging Array, SPIE Medical Imaging, Feb. 14, New Port, CA 1993.
Entine, G., et al., Cadmium Telluride Gamma Camera, IEEE Transactions on Nuclear Sci., NS-26(1), Feb., 1979.
Entine, G., et al., Review of CdTe Medical Applications, Ue De Physique, pp. 354. no date.
Goldstein, R., Clinical Experience With Rubidium-82 Pet Imaging, Cardio, pp.74-87, Mar. 1990.
Kaufman, et al., Semiconductor Gamma-Cameras in Nuclear medicine, IEEE Transactions on Nuclear Science, Ns-27(3):1073, Jun. 1980.
McCready, et al., Clinical tests on a prototype semiconductor gamma-camera, British Journal of Radiology, 44(517):58, Jan. 1971.
Narra, et al., A Neutral Technetium-99m Complex for Myocardial Imaging, The Journal of Nuclear Science, 30:1830, 1989. no month.
Profio, et al., Semiconductor Camera for Detection of Small Tumors, 16(1):53, 1975. no month.
Seldin, et al., Myocardial Perfusion Imaging with Technetium-99m SQ30217: Comparison with Thallium-201 and Coronary Anatomy, The Journal of Nuclear Medicine, 30:312, 1989. no month.
Shapiro, et al., Detailed Concept Review of the Data Push Architecture Test Chip Analog Design, SLAC TN-93-4, pp. 2-15, Mar. 1993.
Positron Emission Tomography, Cardiology, Jun. 1990.
Stewart, et al., Myocardial Clearance Kinetics of Technetium-99m-SQ30217: A Marker of Regional Myocardial Blood Flow, The Journal of Nuclear Medicine, 31(7):1183, Jul. 1980.
Yarema, et al., A High Performance Multi-Channel Preamplifier Asic*, IEEE Transactions On Nuclear Science, 39(4):1992. no month.
Apotovsky Boris
Ashburn William L.
Augustine Frank L.
Butler Jack F.
Doty F. Patrick
Bruce David Vernon
Digirad Corporation
Porta David P.
LandOfFree
Semiconductor gamma-ray camera and medical imaging system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Semiconductor gamma-ray camera and medical imaging system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor gamma-ray camera and medical imaging system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-180486