Clinical condition: neuroendocrine imaging

	MRI Head without and with Contrast	MRI Head without Contrast	CT Head without and with Contrast	CT Head without Contrast	MRA Head	CTA Head	INV Venous Sampling
Hypopituitarism	8^a	7^a	4^b	4^b	3^c	2^d	1
Obesity/eating disorder	4^a ^e	4^a ^e	3^b ^e	3^b ^e	2	1	1
Hyperthyroidism (high TSH)	8^a	7^a	3^b	3^b	3	2^d	1
Cushing's syndrome (high ACTH)	8^a	7^a	4^b	4^b	3^c	2	4^f
Hyperprolactinemia	8^a	7^a	4^b	4^b	3^c	2^d	1^g
Acromegaly/gigantism	8^a	7^a	4^b	4^b	3^c	2^d	3^g
Dwarfism (proportionate)	5^a	7^a	4^b	4^b	2	2^d	1
Diabetes insipidus	6^a	7^a	4^b	4^b	4	2^d	1
Pituitary apoplexy	8^a	7^a	4^b	6	4^c	4	1
Postoperative sella	8^a	7^a	4^h	4^h	2	4	1
Precocious puberty	8^a	7^a	2	2	2	2	1

Note:—Rating Scale: 1, least appropriate; 9, most appropriate
^a Multiplanar thin sellar imaging
^b Indicated if MRI not available or contraindicated
^c Indicated if better visualization of carotid arteries needed
^d For surgical planning or vascular detail if MRI and MRA contraindicated
^e In carefully selected patients with high clinical likelihood of structural abnormality
^f Indicated if MRI is negative or equivocal
^g Indicated in unusual cases in which lateralization is indeterminate
^h CT may be indicated to assess bony anatomy and if MRI is not available or contraindicated.