supraorbitomeatal plane

su·pra·or·bi·to·me·a·tal plane

a plane passing the superior orbital margins and the superior margin of the external acoustic meatuses; it makes an angle of approximately 25-30 degrees with the Frankfort plane; routine CT scans of the brain are made parallel to this plane to limit exposure of eyeball to ionizing radiation.

su·pra·or·bi·to·me·a·tal plane

(sū'pră-ōr'bi-tō-mē-ā'tăl plān)

A plane passing the superior orbital margins and the superior margin of the external acoustic meatuses; it makes an angle of approximately 25-30 degrees with the Frankfort plane and is the plane in which routine computed tomography scans of the brain are made.