+ Site Statistics
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Translate
+ Recently Requested

Multi-layer x-ray detector for diagnostic imaging

Multi-layer x-ray detector for diagnostic imaging

Official Gazette of the United States Patent & Trademark Office Patents 1269(4), Apr 22

X-rays from an x-ray tube (16) pass through an examination region (14) and are detected by a single or two-dimensional x-ray detector (20). The x-ray detector (20) includes an array (22) of photodiodes, CCD devices, or other opto-electrical transducer elements. A matching array (24) of transparent scintillator crystals, e.g., CdWO4, is supported on and optically coupled to the photoelectric transducer array. A layer (26) of a high efficiency scintillator with a good spectral match with the opto-electrical transducer array but with limited light transmissiveness is optically coupled to the transparent scintillator array. The layer (26) is preferably zinc selenide ZnSe (Te). Electrical signals from the transducer array are reconstructed (32) into an image representation and converted into a human-readable display (38). To reduce cross-talk, the zinc selenide layer is etched with pits (40), sliced into strips (26'), cut into rectangles (26"), or has channels (44) cut into it. Scatter grids (46) are advantageously received in the channels. Alternately, the zinc selenide can be powdered, encased in a transparent binder, and applied as a coating layer (26"') to the individual transparent scintillator elements.

(PDF emailed within 1 workday: $29.90)

Accession: 035349281

Download citation: RISBibTeXText

Related references

Diagnostic imaging of cerebrovascular disease on multi-detector row computed tomography (MDCT). Brain and Nerve 63(9): 923-932, 2011

Abdominal wall hernias: imaging features, complications, and diagnostic pitfalls at multi-detector row CT. Radiographics 25(6): 1501-1520, 2005

Multiplanar and 3D imaging of the central airways: comparison of image quality and radiation dose of single-detector row CT and multi-detector row CT at differing tube currents in dogs. Radiology 228(1): 107-111, 2003

Multi-detector CT and 3D imaging in a multi-vendor PACS environment. Lemke, Heinz U , Reprint Author, Vannier, Michael W, Inamura, Kiyonari, Farman, Allan G, Doi, Kunio, Reiber, John H C Computer assisted radiology and surgery: 860-865, 2003

Multi-detector computed tomography and 3-dimensional imaging in a multi-vendor picture archiving and communications systems (PACS) environment. Academic Radiology 11(6): 649-660, 2004

Imaging of acute pulmonary embolism using multi-detector CT angiography: an update on imaging technique and interpretation. European Journal of Radiology 74(1): 40-49, 2010

Combined imaging with multi-detector row computed tomography and diffusion-weighted imaging in the detection of pancreatic cancer. Tohoku Journal of Experimental Medicine 224(3): 195-199, 2011

Adrenal lesions: spectrum of imaging findings with emphasis on multi-detector computed tomography and magnetic resonance imaging. Journal of Clinical Imaging Science 3: 61-61, 2013

Coronal reformations of the chest on 64-row multi-detector row CT: evaluation of image quality in comparison with 16-, 8- and 4-row multi-detector row CT. European Journal of Radiology 59(2): 231-237, 2006

Imaging primary and secondary tumor thrombus of the inferior vena cava: multi-detector computed tomography and magnetic resonance imaging. Current Problems in Diagnostic Radiology 35(3): 90-101, 2006

Diagnostic imaging of patients in a memory clinic: comparison of MR imaging and 64-detector row CT. Radiology 253(1): 174-183, 2009

Cardiac imaging using multi-detector-row CT (MDCT). Nihon Igaku Hoshasen Gakkai Zasshi. Nippon Acta Radiologica 63(1): 26-30, 2003

Multi-detector CT: head and neck imaging. European Radiology 13 Suppl 5: M121-M126, 2004

Diagnostic value of 64-slice multi-detector row cardiac CTA in symptomatic patients. European Radiology 17(3): 603-609, 2006

Imaging of trauma with multi-detector computed tomography. Der Radiologe 49(6): 510-515, 2009