title: Ethiodized oil emulsion enhanced computerized tomography in the preoperative assessment of metastases to the liver from the colon and rectum.
abstract: Selective reticuloendothelial (RE) cell uptake of ethiodized oil emulsion 13 (EOE-13), an emulsion of Ethiodol (ethiodized oil) roentgenographic contrast material in a phosphate buffer, permits detection of small metastatic lesions of the liver and spleen through enhancement of roentgenographic density differences on computerized tomography (CT) between tissues containing and not containing RE cells. To determine the efficacy of this contrast material in the assessment of patients with metastatic disease of the liver, routine CT and emulsion enhanced tomography (EOE) were performed in a series of 15 patients prior to surgical exploration for treatment of carcinoma of the colon and rectum. All patients were suspected of harboring hepatic metastasis on the basis of clinical examination, liver function tests or radionuclide scans. EOE consistently demonstrated the nature and location of hepatic defects. Surgical exploration failed to locate one metastasis that was judged to be real because of progressive enlargement on EOE and CT over a period of two years. CT scans detected metastases in three patients subsequently shown to have normal livers and failed to detect disease in one patient subsequently shown to have metastases. EOE contrast material provides a more sensitive and accurate picture of metastatic liver involvement from carcinoma of the colon and rectum than is available on routine CT. The information provided by the results of this test can be useful in preoperative planning when treatment of disease of the liver is considerable feasible.
mesh_terms: D000230:Adenocarcinoma / Q000000981:diagnostic imaging / Q000556:secondary*; D000328:Adult; D000368:Aged; D003110:Colonic Neoplasms; D003287:Contrast Media; D004998:Ethiodized Oil; D005260:Female; D006801:Humans; D008099:Liver / Q000000981:diagnostic imaging*; D008113:Liver Neoplasms / Q000000981:diagnostic imaging / Q000556:secondary*; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D012004:Rectal Neoplasms; D014057:Tomography, X-Ray Computed
chemical_list: D003287:Contrast Media; C039040:ethiodized oil emulsion 13; D004998:Ethiodized Oil