PET-CT is a positron emission computed tomography phenomenon that needs to be visualized according to the lung nodule, and PET-CT can be considered when the solid component of the lung nodule is ≥8 mm.
For lung nodules ≥6mm with a solid component of 6-7mm partially solid nodules, or solid component ≥8mm nodules, because the degree of malignancy of the nodule is relatively high, PET-CT examination can improve the detection rate of malignant tumors, and provide a basis for the subsequent treatment plan, it is necessary to do.
In other cases, if the lung nodule is not highly malignant, has inert growth, has a low metabolic rate, and the PET-CT diagnostic rate is not high, the test can generally not be considered.
Whether or not to do PET-CT for lung nodules is recommended based on your own situation and following your doctor’s instructions.