The Radioactive String Sign: A Contamination Artifact In Tc-MDP Bone Imaging For Prostate Carcinoma

摘要

The nuclear medicine bone scan is a diagnostic test that is primarily concerned with detecting skeletal abnormalities. An important skill which is necessary for accurately interpreting the nuclear medicine bone scan is the ability to differentiate between contamination artifacts and true pathology. Urinary contamination is one source of contamination seen on bone scans that can confound image analysis. Knowledge of such scan artifacts may provide insight for improving future scan acquisition technique and image interpretation. We present the whole body bone scan images of a 72 year-old male with prostate cancer to demonstrate urinary contamination of a jogging pants drawstring. Introduction The nuclear medicine bone scan is a diagnostic test that is primarily concerned with detecting skeletal abnormalities. An important skill which is necessary for accurately interpreting the nuclear medicine bone scan is the ability to differentiate between contamination artifacts and true pathology. Urinary contamination is one source of contamination seen on bone scans that can confound image analysis. Knowledge of such scan artifacts may provide insight for improving future scan acquisition technique and image interpretation. Case Report We present the whole body bone scan images of a 72 year-old male with prostate cancer to demonstrate urinary contamination of a jogging pants drawstring.