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Evaluation of the pituitary gland in idiopathic hypogonadotropic hypogonadism
R Jayasundar1, A C Ammini, R Gupta
1Department of NMR, All India Institute of Medical Sciences, New Delhi, India.
Purpose:
Evaluation of the pituitary gland has been carried out in idiopathic hypogonadotropic hypogonadism (IHH) to test the potential of MR imaging in differentiating IHH patients from normals.
Material And Methods:
Thirty-seven patients (aged 18-30 years), and 20 volunteers (aged 20-30 years) were studied by T1-weighted MR imaging. Length (LA and LP), height (H), width (W), area (AA and AP), and volume (V1A, V1B V2A, V2P) of the pituitary gland were determined. (Subscripts P and A refer to measurements made with and without the posterior lobe, respectively.) V1 and V2 were estimated using two different methods.
Results:
In the control group, LB W and V2A exhibited significant differences between female and male volunteers. While W was the only parameter that did not show significant difference between normals and patients (in both men and women), all other parameters except LB H and AP showed statistically significant differences between normals and IHH patients in both males and females. While LP was significantly different between normals and patients (men), H and AP were significantly different between normals and patients only in the female group.
Conclusion:
Correlation analysis between various parameters has shown that LA can be used for evaluating the pituitary in both the male and female IHH patients.