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EJNMMI Physics

Table 1 Grading scale for lesions, with uptake compared to mediastinum and liver uptake

From: 3D absorbed dose distribution estimated by Monte Carlo simulation in radionuclide therapy with a monoclonal antibody targeting synovial sarcoma

Grade

Lesion uptake ratio

Grade 0

Lesion uptake < 20% mediast. uptake

Grade I

Lesion uptake < 80% mediast. uptake

Grade II

Lesion uptake > 80% and < 120% mediast. uptake

Grade III

Lesion uptake > 120% mediast. and < 80% liver uptakes

Grade IV

Lesion uptake > 120% liver uptake

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