Document Detail


Nuclear medicine in the detection and management of pancreatic islet-cell tumours.
MedLine Citation:
PMID:  15763696     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Over the last decade somatostatin receptor scintigraphy using various derivatives of long-acting somatostatin analogues has gained its place in the management of pancreatic islet-cell tumours. Scintigraphy is based on the high-affinity binding of such somatostatin analogues to receptors over-expressed by these tumour types. Following the introduction of (111)In-DTPA-D-Phe(1)-octreotide, clinical studies with radiolabelled DOTA-Tyr(3)-octreotide and DOTA-Tyr(3)-octreotate derivatives have shown considerable improvement of imaging results with increased tumour uptake. One of the newer developments, (68)Ga-labelled DOTA-Tyr(3)-octreotide, has shown promising results in patients with pancreatic islet-cell tumours, based on the high-affinity binding to the somatostatin receptor subtype 2 in combination with positron emission tomography (PET) technology. Other peptides--such as ligands for the gastrin/CCK2 receptors or vasoactive intestinal peptide (VIP)--have also been studied for imaging pancreatic cell tumours. Whereas small-sized gastrinoma, somatostatinoma, glucagonoma, carcinoid and VIPoma are frequently detected by somatostatin receptor scintigraphy, insulinoma may escape detection due to reduced receptor expression. Following peptide receptor scintigraphy, a change in patient management is reported in up to 30% of patients. When labelled with (90)Y or (177)Lu, some somatostatin analogues have been applied to patients in advanced stages of the disease. Despite positive response data in 50% of patients, long-term results and survival rates are lacking.
Authors:
Irene Virgolini; Tatjana Traub-Weidinger; Clemens Decristoforo
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Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Best practice & research. Clinical endocrinology & metabolism     Volume:  19     ISSN:  1521-690X     ISO Abbreviation:  Best Pract. Res. Clin. Endocrinol. Metab.     Publication Date:  2005 Jun 
Date Detail:
Created Date:  2005-03-14     Completed Date:  2005-07-05     Revised Date:  2006-10-30    
Medline Journal Info:
Nlm Unique ID:  101120682     Medline TA:  Best Pract Res Clin Endocrinol Metab     Country:  England    
Other Details:
Languages:  eng     Pagination:  213-27     Citation Subset:  IM    
Affiliation:
Clinical Department of Nuclear Medicine, Medical University of Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria. irene.virgolini@uibk.ac.at
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MeSH Terms
Descriptor/Qualifier:
Adenoma, Islet Cell / radionuclide imaging*,  radiotherapy*
Female
Humans
Islets of Langerhans / radionuclide imaging*
Male
Nuclear Medicine / methods
Pancreatic Neoplasms / radionuclide imaging*,  radiotherapy*
Radiopharmaceuticals / diagnostic use,  therapeutic use
Somatostatin / analogs & derivatives
Chemical
Reg. No./Substance:
0/Radiopharmaceuticals; 51110-01-1/Somatostatin

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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