Rapid Assessment of 99MTc‐Pertechnetate Uptake in the Knee Joint as a Parameter of Inflammatory Activity

Abstract

Shortly after intravenous injection of ^99mTechnetium-pertechnetate (^99mTcO₄⁻)(200m̈Ci), the activity of the knee joints was studied in patients with clinical arthritis of one or both knees and compared with that in normal subjects. A rest period directly before the study improved reproducibility. The values found shortly after injection were comparable with measurements at the maximum. The significance of the ^99mTcO₄⁻ uptake in comparison with the histologic findings in cases of doubtful arthritis was examined.