Dynamic and interventional CT

Dynamic CT is a scan of the target tube of the target area of ​​interest or a continuous scan of the target tube after the rapid vascular injection of contrast agent. It can provide detailed information on hemodynamics and blood supply; it can also effectively increase the contrast between the lesion and normal tissue. In recent years, the application of dynamic CT in liver examination is more common. Interventional CT is a new technology developed after interventional X-ray diagnosis and treatment. It is also part of interventional radiology. Although interventional ultrasound is also performed at the same time, ultrasound has a lot of restrictions on sites with more air and sites with more bones, such as lungs and brains. Interventional CT has two main purposes. One is CT-guided diagnosis. The second is CT-guided treatment. Common sites and organs used for diagnostic purposes are brain, lung, mediastinum, liver, pancreas, kidney, adrenal gland, retroperitoneum, pelvic mass or lymph node, deep muscle and bone network tissue biopsy. . Common sites and diseases for treatment purposes include puncture and drainage of intracranial, thoracic, abdominal, pelvic organ hematomas or abscesses, and intracavitary drug injections. Percutaneous puncture and cutting under the guidance of CT can also be used to treat disc herniation. effect.