Tateishi, Ukihide Non-enhanced CT versus contrast-enhanced CT in integrated PET/CT studies for nodal staging of rectal cancer. [electronic resource] - European journal of nuclear medicine and molecular imaging Oct 2007 - 1627-34 p. digital Publication Type: Comparative Study; Evaluation Study; Journal Article; Research Support, Non-U.S. Gov't ISSN: 1619-7070 Standard No.: 10.1007/s00259-007-0455-9 doi Subjects--Topical Terms: AdultAgedContrast MediaFemaleHumansLymphatic MetastasisMaleMiddle AgedNeoplasm StagingPositron-Emission Tomography--methodsRadiographic Image Enhancement--methodsRectal Neoplasms--diagnosisReproducibility of ResultsSensitivity and SpecificitySubtraction TechniqueTomography, X-Ray Computed--methods