RADIOACTIVE DIAGNOSTIC AGENT FOR BONE SCANNING AND NON-RADIOACTIVE CARRIER THEREFOR

摘要

: The invention provides a radioactive diagnostic agent for bone scanning which comprises 99mTc and a non-radioactive carrier comprising (A) methanehydroxydiphosphonic acid or a salt thereof, and (B) at least one reducing agent for pertechnetates, in a weight ratio of about 1 : 1 to 7 : 1. This agent prevents the accumulation of radioactivity in the liver so that a definite diagnosis can be assured.