Figure 4From: High cardiac background activity limits 99mTc-MIBI radioguided surgery in aortopulmonary window parathyroid adenomas Relative radioactivity (RAA) 60, 90, and 120 minutes after radioactive tracer injection over different tissues in both patients with aortopulmonary window parathyroid adenoma (Parathyroid adenoma ex vivo RAA = 1.0). Back to article page