Prolactinoma Clinical Trial
Official title:
The Predictive Value of Positron Emission Tomography-Magnetic Resonance (PET-MR) Mediated Dopamine D2 Receptors Imaging in the Drug Therapy of of Prolactinomas.
To study the in vivo expression of dopamine D2 receptors in prolactinoma and the predictive role of dopamine D2 receptors PET-MR imaging in the therapeutic effect of dopamine agonists.
The dopamine agonist(DA),such as cabergoline(CAB) and bromocriptine(BC), has been used widely in the treatment of prolactinomas, but its clinical use is hampered by intolerance and/or resistant in some patients. It had been showed that DA inhibit prolactin secretion by binding to and activating dopamine D2 receptors.PET-MR combined MR images with PET function images is substantial to evaluate the expression of dopamine D2 receptors.The aim is to study the in vivo expression of dopamine D2 receptors in prolactinoma and the predictive role of dopamine D2 receptors PET-MR imaging in the therapeutic effect of DA. ;
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