title: Single photon emission computed tomography/computed tomography in the evaluation of neuroendocrine tumours:  a review of the literature.
abstract: The scintigraphic investigation of neuroendocrine tumours such as carcinoids has depended on standard techniques such as I-metaiodobenzylguanidine and In-pentetreotide imaging. More recently, the use of PET techniques such as Ga-DOTATATE has been advocated. An alternative improved modality is high-quality single photon emission computed tomography/computed tomography (SPECT/CT), which has the advantages of better sensitivity and specificity and has shown improved localization in up to 60% of cases. These advantages are especially true for pancreatic and lymph node lesions. Overall, SPECT/CT can result in a change in clinical management in 25% of patients. Although it is possible to combine SPECT and CT performed at different time points, there is better anatomical localization and improved reporter confidence when SPECT and CT are performed simultaneously.
authors.affiliation: Department of Nuclear Medicine, Guy’s and St Thomas’ Hospital NHS Foundation Trust, Lambeth Palace Road, London SE1 7 EH, UK. suat_jin_lu@yahoo.com
authors.forename: Suat-Jin
authors.initials: SJ
authors.lastname: Lu
authors.forename: Gopinath
authors.initials: G
authors.lastname: Gnanasegaran
authors.forename: John
authors.initials: J
authors.lastname: Buscombe
authors.forename: Shaunak
authors.initials: S
authors.lastname: Navalkissoor
mesh_terms: D019797:3-Iodobenzylguanidine; D006801:Humans; D007457:Iodine Radioisotopes; D064847:Multimodal Imaging / Q000379:methods*; D018358:Neuroendocrine Tumors / Q000000981:diagnostic imaging* / Q000473:pathology / Q000532:radiotherapy; D049268:Positron-Emission Tomography; D013004:Somatostatin / Q000031:analogs & derivatives; D014057:Tomography, X-Ray Computed
chemical_list: D007457:Iodine Radioisotopes; D019797:3-Iodobenzylguanidine; D013004:Somatostatin