发明名称 |
METHOD AND APPARATUS FOR COMPUTING TOMOGRAPHIC AND PANORAMIC SCANS |
摘要 |
<p>An apparatus and method for computing both tomographic and panoramic scans of an object (16). The apparatus (10) includes an X-ray source (12) and a linear x-ray detector (20), and is operable in two modes: a panoramic mode and a tomographic mode. In the panoramic mode, the detector (20) is aligned perpendicular to a plane of rotation, and the detector (20) and x-ray source are rotated together about an object (16) to be imaged, and about a center of rotation. In addition, the center of rotation travels along a predetermined path. The digital signals produced by the detector (20) are electronically processed to produce a panoramic x-ray image of the object (16). In the tomographic mode, the linear detector (20) is positioned to lie within the plane of rotation, and the detector (20) and x-ray source (12) are rotated together in the plane of rotation about a center of rotation and about an object (16) to be imaged. Signals produced by the detector (20) during rotation are electronically processed to produce a computed tomographic image of the object (16) being scanned. During the tomographic mode, the center of rotation can also travel along a predetermined path, and this eccentricity is mathematically corrected.</p> |
申请公布号 |
EP0608237(B1) |
申请公布日期 |
1996.10.16 |
申请号 |
EP19920914371 |
申请日期 |
1992.06.19 |
申请人 |
BOARD OF REGENTS THE UNIVERSITY OF TEXAS SYSTEM |
发明人 |
MCDAVID, W. DOSS;DOVE, S. BRENT;WELANDER, ULF;TRONJE, GUNILLA;WAGGENGER, ROGERT, G.;LEE, MICHAEL, D. |
分类号 |
A61B6/03;A61B6/14;G06T11/00;(IPC1-7):A61B6/02 |
主分类号 |
A61B6/03 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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