I. Purpose of CT-guided lung aspiration biopsy.
To accurately obtain intrapulmonary (except hilar region) lesions or pleural lesions with minimal trauma for pathological diagnosis and to provide a basis for further clinical treatment.
The indications for CT-guided lung aspiration biopsy are
1, isolated occupying lesions in the chest
2, multiple occupying lesions in the lung
3, benign lung lesions need to obtain local infection bacteriological or immunological diagnosis to determine the treatment plan
4, radiotherapy, chemotherapy before obtaining a cytohistological diagnosis of malignant occupying lesions in the lung
5, qualitative diagnosis of pleural effusion, pleural thickening with pulmonary masses
Contraindications to CT-guided lung aspiration biopsy.
1, suspicious intrapulmonary lesions of vascular origin (hemangioma, pulmonary isolation, arteriovenous malformation, aneurysm, etc.)
2, patients with coagulation disorders or severe bleeding tendencies.
3, intrapulmonary lesions suspicious for inclusion disease.
4, patients with severe emphysema, pulmonary fibrosis, pulmonary hypertension
5, those with intrapulmonary or intrathoracic pyogenic lesions
6, those with pulmonary macules, or pulmonary cysts in the puncture line
7, those with severe cachexia who cannot cooperate
8, the lesion is located in the hilar region, paravalvular, mediastinal or the lesion diameter is less than 0.5 cm.
Pre-examination preparation for lung puncture biopsy.
1, carefully evaluate the patient’s chest-enhanced CT images before the appointment or examination, determine whether the lesion is suitable for CT-guided puncture, whether it is an indication for CT-guided lung aspiration biopsy, clarify the diagnostic significance of performing the procedure for the patient, and initially determine the puncture path and the site of sampling.
2. Carefully ask the patient’s medical history to determine whether his physical condition can withstand CT-guided lung aspiration biopsy.
(30 mg) immediately before the examination.
3. Exclude patients with contraindications to lung aspiration biopsy.
4. Inform the patient in detail about the general procedure of CT-guided lung aspiration biopsy to reduce the patient’s fear and to cooperate with the physician.
5, Pre-operative conversation with the patient and family, explaining possible complications and puncture failure, and signing the informed consent form.
6.Check blood routine and coagulation function, except for possible coagulation dysfunction or bleeding lesions
7. Train the patient to hold his breath under calm breathing in order to cooperate well during the operation.
V. Possible adverse reactions or side effects
1.Pleural reaction.
2, hemothorax.
3, pneumothorax, compressive pulmonary atelectasis.
4, intoxicating drug allergy.
5, local bleeding, oozing.
6, wound infection.
7.Gas embolism of pulmonary circulation and body circulation vessels
8, unsuccessful puncture.
9.Injury to local nerve.