What is the CT-guided lung biopsy?

Ms. Xu is 72 years old, and recently checked her lungs and found a tumor. No obvious symptoms, conscious stomach bulge, poor diet, and the patient had tuberculosis in his 30s. If lung cancer is suspected after CT examination, it is recommended to perform a biopsy under CT guidance and then chemotherapy. Some people say that puncture is dangerous, but now they hesitate.　　 CT-guided lung biopsy is a safe diagnostic method, which makes up for the insufficiency of bronchoscopy biopsy and B-guided lung biopsy, and improves the diagnosis rate of lung occupying.　　 In the past, due to the lack of necessary means for peripheral lung lesions, the method of re-examination after symptomatic treatment was easy to delay the disease and consume the cost. For tumors that are close to the chest wall and have large tumors, B-ultrasound can be used to guide puncture, but tumors with a diameter of less than 3 cm2 are not easy to locate. Due to the characteristics and operating methods of B-ultrasound technology, this technology has greater limitations, and the emergence of CT-guided lung biopsy provides the possibility to solve this problem. In order to improve the accuracy of CT-guided percutaneous lung biopsy, the following points should be paid attention to during the operation: 　　Before the operation, the clinical and imaging data of the patient should be understood, and the indications should be carefully selected; 　　If there is an enhanced scan, the area with obvious enhancement should be selected When performing puncture, try to choose the large area of the lesion as the puncture target site, and avoid liquefied necrotic tissue; 　　The preoperative anesthesia effect should be good, otherwise the patient will not cooperate well; 　　If possible, let the patient take the most comfortable position as much as possible. It conducts breathing training, obtains better cooperation from patients, reduces the difficulty of operation, strives to obtain satisfactory tissue every time the needle is inserted, reduces lung tissue damage, and tries to avoid repeated penetration of the pleura at different points, so that satisfactory results can be obtained　　The operator should be skilled and accurate during the operation, and shorten the time of each puncture as much as possible to reduce the influence of target hemorrhage on obtaining accurate specimens; 　Patients with blood in the sputum after the operation, clinical suspected malignant tumors and those who are not satisfied with the specimens, after the operation Sputum cytology should be examined, and the cancer cells in the cancer foci have fallen off and discharged along the trachea due to the puncture.

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