Labels:text | screenshot | black | font | black and white | document OCR: erior petrosal Fig. 23.15 Cushing's syndrom to confirm sinus venography (PA and la ampling. catheter position prior to ven e inferior Percutaneous catheterisation multaneously, is I-dependent petrosal sinus, or if possible b of a 2:1 gradient useful in the investigation of from the Cushing's syndrome. The fin in ACTH levels in venous sa d with inferior petrosal sinus(es) co yndrome is peripheral blood suggests tha only seen in 50 likely to be of pituitary origin corticotrophin n intravenously, per cent of cases. However, if releasing hormone, CRH41, al sinuses of over a rise in ACTH levels in the liagnosis of twice the basal value establis ase in 80 per cent pituitary dependent Cushing denoma to one of cases and may lateralise a 1 from other sites side of the fossa. Venous sam e of ACTH ma ...
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