What is FH plane?
What is FH plane?
: a plane used in craniometry that is determined the highest point on the upper margin of the opening of each external auditory canal and the low point on the lower margin of the left orbit and that is used to orient a human skull or head usually so that the plane is horizontal.
What is the Frankfurt line?
Frankfort horizontal line, Reid’s base line Reconstructive surgery An imaginary line that projects from the median line of the occipital bone and upper rim of the external auditory canal–the auricular point, to the lower rim of the orbit–the infraorbital point; the FHL divides the head into upper and lower halves from …
What is Orbital meatal baseline?
A line approximating the base of the skull, passing from the infraorbital ridge to the midline of the occiput, intersecting the superior margin of the external auditory meatus; the skull is in the anatomic position when the baseline lies in the horizontal plane.
Where is the orbital meatal line?
Orbitomeatal line is a positioning line used in radiography of the skull. It passes through the outer canthus of the eye and the center of the external auditory meatus. It is used for positioning the patient for different radiographic views including Water’s view, Perorbital view, Lateral view, and others.
What is the Porion?
The porion is the point on the human skull located at the upper margin of each ear canal (external auditory meatus, external acoustic meatus). It lies on the superior margin of the tragus.
Where is the Frankfurt plane?
Typically, the Frankfort plane (superior border of the external auditory meatus to the infraorbital rim) or plane of occlusion (vertical/up-down plane) is positioned parallel to the floor in panoramic imaging.
What is the radiographic baseline?
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.
What is anthropological baseline?
(an″thrŏ-pŏ-loj′ĭ-kăl) An imaginary line that passes from the lower border of the orbit to the superior margin of the external auditory meatus.
What is a Canthomeatal line?
The orbitomeatal line, also known as the canthomeatal line, was the traditional axial plane used for CT of the brain. The orbitomeatal line was defined as running from the outer canthus of the eye to the midpoint of the external auditory meatus 1,2.
Which is the radiographic base line?
An anatomic line which maintains a fixed relation to the facial bones throughout the period of growth was found in the acantho-meatal line, hereafter referred to as the “pediatric base line” (P.B.L.). The P.B.L. extends from the external auditory meatus to the anterior nasal spine.