象形文字
发表于 2025-4-1 05:02:11
Radiopharmaceuticalsave been used to diagnose cancer. Although CT and MRI provide considerable anatomic information about the location and the extent of tumors, they do not adequately differentiate residual or recurrent tumors from edema, radiation necrosis, or gliosis. Ultrasound images provide information about local
poliosis
发表于 2025-4-1 09:53:55
Automated Synthesis of Radiopharmaceuticalsrack biochemical processes in humans and animals. Positron-emitting isotopes are produced by a cyclotron facility. The four major positron emitters used to label compounds are .C (t 1/2 = 20.4 minutes); .F (t 1/2 = 110 minutes); .N (t 1/2 = 10 minutes) and .O (t 1/2 = 2.0 minutes). The commonly used
珠宝
发表于 2025-4-1 12:40:22
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lethargy
发表于 2025-4-1 15:59:01
Technical Considerationsment by adding functional information to that obtained from conventinal morphologic modalities. Focal areas of abnormally increased fluorodeoxyglucose (FDG) uptake are considered suspicious for malignant disease, as metabolic changes often precede the anatomic changes associated with disease. Diseas