MRI Intervention_Evaluation and optimization of fluoroscopic MRT sequences for performing MR-assisted biopsy / microwave ablation / PTCD while avoiding ionizing radiation

Interventions: Group 1: After clinical decision making, which takes place independently of the study, an MRI-guided instead of a CT-guided intervention will be performed. The patients are admitted to the hospital for this purpose. Follow-up care for the early detection of complications is carried out shortly after the intervention. After the inpatient treatment, the study ends for the patient.
Group 2: historical data from patients with CT-guided intervention
Primary outcome(s): Feasibility of MR interventions
Morbidity and mortality of MR interventions compared to CT intervention
Cost-effectiveness of the MR intervention compared to the CT intervention
Study Design: Allocation: Non-randomized controlled study; Masking: Open (masking not used); Control: historical; Assignment: other; Study design purpose: treatment