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Fig. 3 | EJNMMI Physics

Fig. 3

From: Comparison of novel multi-level Otsu (MO-PET) and conventional PET segmentation methods for measuring FDG metabolic tumor volume in patients with soft tissue sarcoma

Fig. 3

Images of representative cases (a, c, and e axial 18F-FDG PET image; b, d, and f axial fusion image). a, b A 54-year-old male with synovival sarcoma in the left popliteal fossa (SUVmax 28.71). The ratios of MTV to GTV for MO-PET, SUV 2.0, 30% SUVmax, and PET Edge™ are 1.05, 1.06, 0.25, and 0.97, respectively. c, d A 64-year-old male with extraskeletal osteosarcoma in the right thigh (SUVmax 27.77). The ratios of MTV to GTV for MO-PET, SUV 2.0, 30% SUVmax, and PET Edge™ are 0.90, 1.62, 0.57, and 1.17, respectively. e, f A 42-year-old female with pleomorphic leiomyosarcoma in the left thigh (SUVmax 5.47). The ratios of MTV to GTV for MO-PET, SUV 2.0, 30% SUVmax, and PET Edge™ are 1.13, 0.24, 0.46, and 0.99, respectively. Red line, MO-PET; blue line, SUV 2.0; green line, 30% SUVmax; pink line, PET Edge™

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