Henry John Tancredi,Edward Marandola,Frank Speranza,Omid Ebrahimi Kia
申请号：
US12918558
公开号：
US08503603B2
申请日:
2009.02.20
申请国别(地区):
US
年份:
2013
代理人:
摘要：
For dental and facial imaging, a source of x-rays (14) or other penetrating radiation and a detector (20) are mounted opposite one another on a rotatable gantry (28), so that the head of the patient can be positioned between the source (14) and the detector (20), with the axis of rotation (36) of the gantry passing through the patients head. The detector or the source are mounted so they can translate and/or pivot horizontally or vertically. The gantry is angulated so that the source or the detector may not be at the same height relative to the patients head. The gantry can telescope, moving the source and the detector closer together or further apart. The collimator changes dynamically with the motion of the gantry and/or the source and detector to scan a smaller portion of the scan field.
