title: Combined 18F-FDG PET/CT and 99mTc 3PRGD2 SPECT/CT imaging in a case of pituitary metastases.
abstract: We compare F-FDG PET/CT and 99mTc 3PRGD2 SPECT/CT scans in a case of histologically proved pituitary metastases. The ratio of tumor to cerebellum (T/C) of 99mTc 3PRGD2 SPECT is much higher than that for 18F-FDG PET. We then conduct the same scans for a pituitary adenoma patient for better comparison. The T/C of 18F-FDG is not able to differentiate pituitary metastases from pituitary adenoma. However, The T/C of 99mTc 3PRGD2 observed in pituitary metastases was higher than that in pituitary adenoma.
authors: Key Laboratory of Endocrinology, Neurosurgery, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
authors: Yuantao
authors: Y
authors: Hou
authors: Zhaohui
authors: Z
authors: Zhu
authors: Xiaona
authors: X
authors: Jin
authors: Renzhi
authors: R
authors: Wang
authors: Bing
authors: B
authors: Xing
mesh_terms: D000368:Aged; D019788:Fluorodeoxyglucose F18; D006801:Humans; D008297:Male; D064847:Multimodal Imaging; D015609:Organotechnetium Compounds; D010456:Peptides, Cyclic; D010911:Pituitary Neoplasms / Q000000981:diagnostic imaging* / Q000556:secondary*; D049268:Positron-Emission Tomography; D015899:Tomography, Emission-Computed, Single-Photon; D014057:Tomography, X-Ray Computed
chemical_list: D015609:Organotechnetium Compounds; D010456:Peptides, Cyclic; C561921:technetium 99m (HYNIC-3PRGD(2))(tricine)(TPPTS); D019788:Fluorodeoxyglucose F18