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EJNMMI Physics
Fig. 3 | EJNMMI Physics

Fig. 3

From: Insertion of synthetic lesions on patient data: a method for evaluating clinical performance differences between PET systems

Fig. 3

Example of ISL into two consecutive examinations of the same patient. The first examination is displayed at the top (DMI) and the second at the bottom (DIQ). Three synthetic lesions were inserted in three anatomical areas: in an axillary lymph node (a), a lesion 7 mm in diameter and a contrast of 5; in the mediastinum (b), a lesion 9.4 mm in diameter and a contrast of 2.5; in the liver (c), a lesion 9.4 mm in diameter and a contrast of 4. When reviewing the images, the physicians reported three targets on the DMI versus two on the DIQ in their consensus. For each PET/CT scanner we have from left to right: Maximum Intensity Projection (MIP), PET, CT and fused images displayed. Semi-quantitative metrics are reported in box next to axial PET, CT and fused images

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