Height of Normal Pituitary Gland on MRI: Differences between Age Groups and Sexes

Abstract

In this study, the coronal and sagittal heights of the pituitary glands were measured by magnetic resonance imaging (MRI) technique in 201 individuals. There was no sellar or parasellar region pathology in the study group. The data were evaluated according to age and sex groups. In all cases the coronal and sagittal heights of the pituitary glands were equal. The mean values of the coronal and sagittal heights in females (6.1 +/- 0.1 mm, 6.1 +/- 0.1 mm respectively) were higher than in males (5.7 +/- 0.2 mm, 5.6 +/- 0.2 mm respectively). The highest values for the coronal and sagittal heights were in the 11-20 years age group in both sexes. A gradual increase in the coronal and sagittal heights of the pituitary glands in the 0-10, 11-20 age groups was present in both sexes. Decrease in the heights of the pituitary glands was noted after 20 years of age onwards. Nevertheless there was a conspicuous increase in the mean value of the pituitary glands' heights in the 51-60 years age group in males. In females, a minimal increase in the mean value of the pituitary glands' heights was observed in the 61 years and over age group.

The normal dimensions of the sella turcica in Jordanians: a study on lateral cephalograms

“…Computed tomography and magnetic resonance imaging have been shown to provide much greater sensitivity than cephalograms for detection of pituitary pathology [31]. Nevertheless, the relevance of radiological studies remains valid [15,57].…”

“…On the other hand, greater values were often reported e.g. [1,5,15,21,46,48,58,59]. It can be expected that in cases where the sella is normally tilted, any measurement of the height and length without referring to the FH line will result in different readings.…”

Measures of pituitary gland and stalk: from neonate to adolescence

“…Again, in our study, the PG size was significantly larger in girls than in boys, which was similar to the study of Takano et al (14). Although volumetric studies from indirect volume calculation had some different results (15,16), we suggest that this simple formula can be used to predict the pituitary volume. PS also shows similar changes depending on age or physiologic status, such as PG dimensions (5,6,(10)(11)(12).…”

Pseudotumor cerebri: Quantitative Normalwerte anatomischer Kennstrukturen im kraniellen MRT

“…0,5 mm) in Abhängigkeit vom Menstruationszyklus beschrieben worden, der in unserer Studie nicht berücksichtigt wurde. In drei Studien wurde die normale Hypophyse bei einer grçßeren Anzahl von japanischen [25,26] und türkischen [27] Kindern und Erwachsenen vermessen, wenngleich mit anderen Sequenzen, Feldstär-ken und Messlinien. Wir wollten sowohl Veränderungen bei Frauen im geschlechtsreifen Alter und deren Abhängigkeit von Alter und BMI als auch Veränderungen in hçherem Alter getrennt nach Geschlecht anhand der von uns benutzten koronar gewinkelten STIR-Sequenz untersuchen, die auch eine sehr gute Beurteilbarkeit der Orbitastrukturen im Routinebetrieb gewähr-leistet.…”

“…Auf eine komplexere Volumetrie der Hypophyse durch Nachbearbeitung dreidimensionaler MRT-Sequenzen (vgl. [ [25,26], die eine durchschnittliche Hçhe der Hypophyse von 4,7 und 4,8 mm bei japanischen Männern und im Vergleich zu Denk et al [27], die eine Hçhe von 5,7 mm bei Türken beschrieben, sind unsere Werte etwas niedriger. Suzuki beschrieb einen Trend zu geringerer Hçhe bei älteren Männern [25].…”