Assessment of normal clivus related to age with magnetic resonance imaging.
The signal intensity pattern cf normal clivus bone marrow related to age was studied on T1-weighted sagittal plain magnetic resonance images. Bone marrow in the clivus had a uniformly low signal intensity (grade 1) in 100% of the patients at 0-5 years and 96% of patients in the first decade (0-9 years). In the second decade there was a sharp decrease in the number of patients (43%) showing grade 1 clivus. Patients having mixed clivus signal intensity (grade 2) were mostly seen in the second decade (28.5%). Uniform high signal intensity (grade 3) was not observed under the age of 10. Grade 3 clivus pattern increased with age from the second decade, while grades 1 and 2 clivus bone marrow showed a marked decrease.
Oyar
O
O
Department of Radiology, Ege University School of Medicine, Bornova, Izmir, Turkey.
Gövsa
F
F
Sener
R N
RN
Kayalioglu
G
G
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001853:Bone Marrow / Q000033:anatomy & histology*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D012680:Sensitivity and Specificity; D012737:Sex Factors; D012886:Skull / Q000033:anatomy & histology*