SPECT scan for cancer bone metastasis is accurate. SPECT examination is to inject the radioactive nuclide marker drug into the body through the intravenous channel, and then examine the patient’s body through the instrument, according to its emitted rays to understand the situation of various organs and tissues of the body, which can be used for the examination of metastatic tumors, bone tumors and other diseases, and the accuracy is still relatively high, and it can find all kinds of hidden and small volume tumors. SPECT examination can not only understand the location, size and shape of bone metastatic tumor, but also understand the blood flow and density of the tumor in the lesion area, so as to find the metastatic tumor at an early stage and provide an effective basis for later diagnosis and treatment.