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EJNMMI Physics
Fig. 3 | EJNMMI Physics

Fig. 3

From: Experimental phantom evaluation to identify robust positron emission tomography (PET) radiomic features

Fig. 3

Experimental heterogeneous simulated lesions with cylindrical areas of different activity concentrations developed for the evaluation of the segmentation accuracy and the radiomic feature reliability given by automatic PET segmentation approaches. a Eighteen simulated lesions with a diameter longer than 3× FWHM. b Eight cylindrical lesions (V1 to V8) with 2 concentration layers (external cylinder with CL and inner cylinder with CH, CH/CL = 6)

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