Basal angle
Radiography (Lateral)
X-ray computed tomography
Magnetic resonance imaging
Basal kyphosis <125°
Platybasia >143°
A line drawn between nasion and tuberculum sellae. Basal angle is the angle between this line and clivus line.
Menkes JH, Sarnat HB, Maria BL. Child Neurology, 7e. Lippincott Williams & Wilkins. (2006).
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