title: 67Ga scanning in the evaluation of esophageal carcinoma.
abstract: Eighty-nine patients with histologically proved esophageal carcinoma were scanned with 67Ga to screen for extramural tumor extension and lymph-node involvement. Radiation dose and reduction of uptake were correlated. 67Ga accumulation indicated extramural extension with a sensitivity of 67% and a specificity of 93%. Marked uptake in an extraprimary site in the mediastinum or upper abdomen indicated lymph-node involvement with a sensitivity of 27% and a specificity of 100%. Irradiation with more than 20 Gy (2,000 rad) reduced uptake (P less than 0.05). 67Ga scanning appears to be useful in the evaluation of esophageal carcinoma.
mesh_terms: D002294:Carcinoma, Squamous Cell / Q000000981:diagnostic imaging* / Q000378:metabolism / Q000473:pathology; D004358:Drug Therapy; D004938:Esophageal Neoplasms / Q000000981:diagnostic imaging* / Q000378:metabolism / Q000473:pathology; D005069:Evaluation Studies as Topic; D005710:Gallium Radioisotopes; D006801:Humans; D009362:Neoplasm Metastasis; D009367:Neoplasm Staging; D011379:Prognosis; D011829:Radiation Dosage; D011877:Radionuclide Imaging; D011878:Radiotherapy
chemical_list: D005710:Gallium Radioisotopes