The clinical impact of camera-based positron emission tomography imaging in patients with recurrent colorectal cancer.

Rationale And Objectives: F18-fluorodeoxyglucose (FDG)-positron emission tomography (PET) studies have clinical value in suspected recurrent or metastatic colorectal cancer cases. Because this modality is not accessible for many patients, a camera-based FDG (CB-FDG) coincidence imaging was suggested as an alternative. Although inferior in resolution to a dedicated PET system, it can make FDG studies available to more patients.

Kidney allografts and remaining contralateral donor kidneys before and after transplantation: assessment by quantitative (99m)Tc-DMSA SPECT.

Unlabelled: We used (99m)Tc-dimercaptosuccinic acid (DMSA) quantitative SPECT (QDMSA) to assess the function of kidneys before harvesting and after transplantation as well as the function of remaining donor kidneys.

Methods: Nineteen kidney donors underwent a baseline QDMSA study before nephrectomy. The allografts of these kidneys were studied in recipients at 1 wk, 1-2 mo, and 6-15 mo after transplantation.