Initial results of a positron tomograph for prostate imaging

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We present the status and initial images of a positrontomograph for prostate imaging that centers a patient between a pair ofexternal curved detector banks (ellipse: 45 cm minor, 70 cm major axis).The distance between detector banks adjusts to allow patient access andto position the detectors as closely as possible for maximum sensitivitywith patients of various sizes. Each bank is composed of two axial rowsof 20 CTI PET Systems HR+ block detectors for a total of 80 modules inthe camera. Compared to an ECAT HR PET system operating in 3D mode, ourcamera uses about one-quarter the number of detectors and hasapproximately ... continued below

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Huber, J.S.; Choong, W.S.; Moses, W.W.; Qi, J.; Hu, J.; Wang,G.C. et al. November 29, 2004.

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We present the status and initial images of a positrontomograph for prostate imaging that centers a patient between a pair ofexternal curved detector banks (ellipse: 45 cm minor, 70 cm major axis).The distance between detector banks adjusts to allow patient access andto position the detectors as closely as possible for maximum sensitivitywith patients of various sizes. Each bank is composed of two axial rowsof 20 CTI PET Systems HR+ block detectors for a total of 80 modules inthe camera. Compared to an ECAT HR PET system operating in 3D mode, ourcamera uses about one-quarter the number of detectors and hasapproximately the same sensitivity for a central point source, becauseour detectors are close to the patient. The individual detectors areangled in the plane to point towards the prostate to minimize resolutiondegradation in that region. The detectors are read out by modified CTIdata acquisition electronics. We have completed construction of thegantry and electronics, have developed detector calibration and dataacquisition software, and are taking coincidence data. We demonstratethat we can clearly visualize a "prostate" in a simple phantom.Reconstructed images of two phantoms are shown.

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  • Journal Name: IEEE Transactions on Nuclear Science; Journal Volume: NS-53; Related Information: Journal Publication Date: 2006

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  • Report No.: LBNL--56611
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 909507
  • Archival Resource Key: ark:/67531/metadc888400

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  • November 29, 2004

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  • Sept. 22, 2016, 2:13 a.m.

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  • Sept. 29, 2016, 3:02 p.m.

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Huber, J.S.; Choong, W.S.; Moses, W.W.; Qi, J.; Hu, J.; Wang,G.C. et al. Initial results of a positron tomograph for prostate imaging, article, November 29, 2004; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc888400/: accessed August 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.