Figure 4.

Case of 44-year-old female BMI 42 kg/m². Anterior MIP, axial PET and fused ¹⁸F-NaF PET images with different reconstructions. (a) OSEM b) Q.Clear B400 c) Q.Clear B600 d) Q.Clear B800 and d) Q.Clear B1000. We can see clearly a noise gradient decrease from images (a-e). The scorer considers the image reconstruction (c) with B600 has the best clinical information quality and signal to noise ratio without losing information. ¹⁸F-NaF, ¹⁸F sodium fluoride;BMI, body mass index; OSEM, ordered subset expectation maximization; PET,positron emission tomography