How To Do Lung Biopsy

The main steps of puncture under CT positioning are as follows. First, a chest CT scan is performed to measure the size, density and the shortest linear distance to the skin of the mass, mark the number of beds, and mark the puncture point on the skin. Then disinfect the skin at the puncture site, spread a small hole towel, and anesthetize the puncture site. Use an 18G disposable biopsy needle or a semi-automatic biopsy gun to puncture the lung mass through the skin, subcutaneous tissue, intercostal muscles and pleura, during which multiple scans are required. Adjust the direction and depth of the puncture needle until the tip of the puncture needle enters the edge of the mass, ask the patient to hold their breath, activate the puncture needle, quickly withdraw the puncture needle, and send the tissue out for medical examination.

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