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Octreotide scanning for carcinoid tumours

M Critchley1

  • 1Department of Nuclear Medicine, Royal Liverpool University Hospital, UK.

Postgraduate Medical Journal
|July 1, 1997
PubMed
Summary

Radionuclide scanning with 111Indium-labelled octreotide is a sensitive, non-invasive diagnostic tool for somatostatin-positive tumors. This imaging technique helps locate neuroendocrine tumors and assess patient response to octreotide therapy.

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Area of Science:

  • Nuclear Medicine
  • Oncology
  • Endocrinology

Background:

  • Octreotide, a somatostatin analogue, has diagnostic and therapeutic applications.
  • Carcinoid and other neuroendocrine tumors express somatostatin receptors.

Purpose of the Study:

  • To evaluate the utility of radionuclide scanning using 111Indium-labelled octreotide for tumor localization.
  • To assess the potential of this technique in patient selection and therapy monitoring.

Main Methods:

  • Intravenous injection of 111Indium-labelled octreotide (111In-DTPA-pentetreotide).
  • Radionuclide imaging for tumor detection and localization.

Main Results:

  • The technique demonstrated high sensitivity in localizing somatostatin-positive tumors.
  • It effectively identified patients suitable for octreotide therapy.
  • Therapeutic efficacy could be monitored using this method.

Conclusions:

  • 111Indium-labelled octreotide scintigraphy is a valuable non-invasive tool for diagnosing and managing neuroendocrine tumors.
  • This imaging modality aids in treatment planning and response assessment.

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