Apparatus and method for cone beam volume computed tomography mammography

A tomography, computerized technique used in mammography, instruments for radiological diagnosis, computed tomography scanners, etc.

Inactive Publication Date: 2008-01-23
UNIVERSITY OF ROCHESTER
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  • Apparatus and method for cone beam volume computed tomography mammography
  • Apparatus and method for cone beam volume computed tomography mammography
  • Apparatus and method for cone beam volume computed tomography mammography

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[0074] The preferred embodiments and alternative embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the accompanying drawings, the same reference numerals denote the same components.

[0075] The limitations of ordinary mammography will be resolved by the use of a flat-panel detector with cone-beam volume CT reconstruction technology. Through the tapered beam geometry and the flat panel detector, the flat-panel-based tapered beam volume computed tomography mammography (CBVCTM) imaging system can be constructed as shown in Figure 2A-2F, and the breast can be obtained through a fast volume scan Three-dimensional (3D) rendering of the image. Compared with ordinary mammography, the flat-panel-based CBVCTM system can separate objects of interest (such as lesions) from other objects (such as other lesions or calcifications) in adjacent planes through X-ray tomography. The 3D X-ray tomography reconstruction method elimin...

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Abstract

A device (200) for producing a three-dimensional tomographic mammography image of a breast (B) of a patient (P), the device (200) presenting: a gantry frame (206); at least one motor (212, 214), for moving the gantry frame (206) to form a data acquisition geometry; a source (210) of radiation (C) attached to the gantry frame (206) to move with the gantry frame (206); a flat panel detector (208) attached to the gantry frame (206) to move with the gantry frame (206), the flat panel detector (208) being disposed in a path of the radiation (C); and a support (202) comprising a table (202) on which the patient (P) rests while projection images of the breast (B) are taken; the table (202) presents a through hole (204) so that the breast (B) to be scanned descends through the hole (204) in the table (202) into a breast holder (205) and the through hole (204) is disposed relative to the source (210) of radiation (C) and the flat panel detector (208) so that the breast (B) to be scanned only is disposed between the source (210) of radiation (C) and the flat panel detector (208).

Description

[0001] References to related applications [0002] This application claims priority to US Provisional Application No. 60 / 166223, filed November 18,1999. technical field [0003] The present invention relates to an apparatus and method for forming cone beam volume computed tomography breast images of a patient's breast. Background technique [0004] Breast cancer is a big health problem. In the United States, more than 180,000 new cases are diagnosed each year and nearly 45,000 women die from the disease. [0005] The clinical goal of breast imaging is to detect tumor material when it is as small as possible, preferably less than 10 mm in diameter. Women with 1-10 mm invasive breast cancer detected by mammography have been reported to have a 93% survival rate after 16 years. [0006] Ordinary masked film mammography (mammography) is currently the most effective early detection tool for breast cancer. However, mammography is relatively insensitive for detecting small breas...

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Application Information

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IPC IPC(8): A61B6/00A61B6/03A61B6/06
CPCA61B6/502A61B6/481A61B6/032A61B6/027A61B6/06A61B6/0435A61B6/504
Inventor 劳拉·宁
Owner UNIVERSITY OF ROCHESTER
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