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  Indian J Med Microbiol
 

Figure 5: A standard PET-CT patient positioning and acquisition protocol is depicted (1) Following FDG inj and uptake, the patient is positioned for the CT scan a scout image is acquired (10 s). (2) CT imaging is acquired and reconstruction begins (60 s). (3) While CT reconstruction completes, the patient is automatically positioned for the PET imaging. PET attenuation correction factors are computed. Usually 7-8 bed positions are acquired for each patient during wholebody PET acquisition starting from thigh end of the table. For RT planning, an additional regional PET-CT (region of interest) acquisition with flat table is performed. Reconstruction is done for each bed position. 4) Whole body CT, PET and fused PET-CT images are reviewed (cross hair marker denotes the nodal mass in left cervical station) for nodal / metastases evaluation

Figure 5: A standard PET-CT patient positioning and acquisition protocol is depicted (1) Following FDG inj and uptake, the patient is positioned for the CT scan a scout image is acquired (10 s). (2) CT imaging is acquired and reconstruction begins (60 s). (3) While CT reconstruction completes, the patient is automatically positioned for the PET imaging. PET attenuation correction factors are computed. Usually 7-8 bed positions are acquired for each patient during wholebody PET acquisition starting from thigh end of the table. For RT planning, an additional regional PET-CT (region of interest) acquisition with flat table is performed. Reconstruction is done for each bed position. 4) Whole body CT, PET and fused PET-CT images are reviewed (cross hair marker denotes the nodal mass in left cervical station) for nodal / metastases evaluation