A back CT is usually done because of back pain, and there are many reasons for back pain, such as pain in the scapular region, a plain film, CT or MRI can be taken to see if there is any bony destruction of the scapula, such as trauma or fracture. If you find that the vertebrae are uncomfortable, you can take radiographs, CT or MRI to see if there is any osteophyte or degeneration in the vertebrae, if there is any bulging or herniation of the discs, if there is any narrowing of the spinal canal, or if there is any space occupation. Back pain can also be caused by heart disease, so it is necessary to identify whether there is heart disease, or whether there is cholecystitis or acute pancreatitis, clinicians need to identify the specific cause of back pain. Chest CT examination of the back can be seen, generally can see the chest wall soft tissue, ribs, sternum, thoracic vertebrae, scapula with or without inflammation or tumor; can also see the bronchial tubes, lungs with or without inflammation and tumors or tuberculosis, and further observation of the mediastinum, mediastinum in the heart or blood vessels with or without lesions, such as entrapment aneurysm; can also observe the pleural situation, there is no pleural thickening, calcification or pleural effusion.