The Use of Radiolabeled Somatostatin Analog Scintigraphy in the Staging of Small Cell Lung Cancer Patients
| Autor: | Christina Alamara, Eleni M. Karapanagiotou, Konstantinos N. Syrigos, Kalliopi D. Dilana, Adrianni Charpidou, Ifigeneia A. Tzannou, Ioanna Christakopoulou, Evangelos Georgiou |
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| Rok vydání: | 2007 |
| Předmět: |
Adult
Male Thorax Cancer Research medicine.medical_specialty Lung Neoplasms Octreotide Scintigraphy Sensitivity and Specificity medicine Humans Carcinoma Small Cell Radionuclide Imaging Lung cancer Aged Neoplasm Staging medicine.diagnostic_test business.industry Indium Radioisotopes Middle Aged medicine.disease Survival Analysis Primary tumor Oncology Lymphatic Metastasis Mediastinal lymph node Female Radiology Non small cell Somatostatin business Somatostatin analog Nuclear medicine medicine.drug |
| Zdroj: | American Journal of Clinical Oncology. 30:503-506 |
| ISSN: | 0277-3732 |
| DOI: | 10.1097/coc.0b013e3180546747 |
| Popis: | Objectives: The prognosis of patients with small cell lung cancer (SCLC) is dismal with a median survival not exceeding 18 months. For the fact that the tumor stage remains the most significant prognostic factor, efforts have been made to improve its accuracy. We evaluated the role of somatostatin receptor scintigraphy (SRS) in the diagnosis and initial staging of SCLC in comparison with the conventional staging procedure. Methods: We administered radiolabeled somatostatin analog Indium 111(111 In)-diethylenetriamine pentaacetic acid (also known as Indium In-111 pentetreotide or OctreoScan) in 32 newly diagnosed patients with SCLC, 19 of which of had limited disease and 13 of which had extensive disease. All patients had been previously examined with other imaging modalities, specifically CT and/or MRI. Results: Staging with 111 In- OctreoScan successfully located the primary tumor site with a sensitivity of 92%. Although detection of mediastinal lymph node dissemination was also relatively high (83%), the SRS failed to detect most of the metastatic lesions outside the thorax (9 of 36, 25%), while its sensitivity for the detection of malignant lesions in the liver, adrenals, and bones, was 56%, 33% and 17%, respectively. Conclusions: Although 11 Hn-OctreoScan may be used in addition to current SCLC staging methods, there are insufficient data for maintaining that SRS may replace conventional staging. |
| Databáze: | OpenAIRE |
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