[Possibilities and Limitations of CT-guided Intervention].

CT-guided transthoracic lung biopsy (CT-TTNB) is an essential method for the diagnosis of pulmonary nodules and masses. With a sensitivity of 85-97% and a specificity of 85-100%, it offers high diagnostic accuracy. By using core-needle biopsies, high-quality tissue samples can be obtained that enable molecular analyses for personalised therapy.At the same time, lung ablation has established itself as a valuable minimally invasive therapy. Procedures such as radiofrequency ablation (RFA), microwave ablation (MWA) and cryoablation enable targeted tumour destruction, particularly in inoperable patients with NSCLC or lung metastases. Studies have shown a high level of local tumour control with acceptable complication rates. The combination of imaging and interventional technique significantly improves patient safety and treatment outcomes and offers good results with low complication rates.Overall, CT-guided puncture and ablation are integral components of modern lung cancer diagnostics for primary and secondary lung tumours, while offering a new treatment option and therapy. They offer precise, low-risk alternatives to invasive procedures and can therefore make a significant contribution to effective patient care.