Lung biopsy needle procedure

Pulmonary percutaneous needle biopsy is an important part of pulmonary non-vascular interventional technology. For some lesions that are difficult to be clearly identified by imaging, qualitative diagnosis and differential diagnosis can be made by obtaining cytological and histological data through biopsy, and the choice of treatment plan. , development and follow-up after treatment, prediction of prognosis and other aspects play an important role.

Inspection method: First, a conventional lung CT scan is performed, and then the distance and angle from the puncture point to the predetermined puncture target are measured on the CT image. Measure the puncture depth, hold the patient's breath, and perform the puncture at a predetermined angle. When puncturing, pay attention to keep the puncture needle in the same scanning level of the puncture point, and try to use the direction parallel or perpendicular to the ground. After the puncture is in place, perform a local CT scan to determine whether the needle tip is in the lesion. If the direction needs to be adjusted, the puncture The needle is withdrawn to the chest wall and then adjusted, or pulled out and re-punctured. When adjusting the puncture needle or withdrawing the needle, ask the patient to hold their breath. When the needle is in the body, let the patient breathe calmly and try to avoid coughing. After the puncture, the puncture needle was withdrawn, and the puncture specimen was fixed and sent for pathological examination.

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