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Reid's base line
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Reid's base line : ウィキペディア英語版
Reid's base line

Reid's base line is used for an unambiguous definition of the orientation of the human skull in conventional radiography, computer tomography (CT), and magnetic resonance imaging (MRI) studies. It is defined as a line drawn from the inferior margin of the orbit (''Orbitale'' point) to the auricular point (center of the orifice of the external acoustic meatus, ''Auriculare'' point) and extending backward to the center of the occipital bone. Used as the zero plane in computed tomography.
In 1962, the World Federation of Radiology defined it as the line between the infraorbital margin and the upper margin of the external auditory meatus.
With the head upright, it is typically tilted about 7 degrees nose up with respect to the horizontal plane.
==See also==

* Frankfurt plane

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Reid's base line」の詳細全文を読む



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