2. To understand quantitative analysis of occlusive disease in peripheral arteries in order to plan revascularisation. 3 . To learn about the specific pros and cons of ultrasound, MRA, CTA and DSA in diabetic foot syndrome prior to revascularisation. RF is also currently used within the multidisciplinary approach of patients with liver metastases, either as a complementary treatment during a hepatectomy or as a unique method to increase the local control of a liver nodule. Finally, in recent years several series have demonstrated excellent results with the application of RF in other non-liver tumours such as renal or lung carcinomas. In spite of being a relatively safe procedure the use of RF has some limitations and is not exempt from complications. In general they include the need of the introduction of a needle, the decrease in its efficacy when the tumour is located close to a blood vessel and the impossibility to obtain a complete necrosis, with a safety margin, in tumours bigger than 3.5 cm in its greatest diameter. To overcome some of these limitations, new locally ablative methods have been developed. Some may not need the insertion of a needle and can be applied in many different tumoural locations, among them "high intensity focused ultrasound" (HIFU) or "stereotactic body radiation therapy" (SBRT). Others like "microwave ablation" or "irreversible electroporation" may be applied to tumours bigger than 4 cm or situated close to blood vessels. Radiofrequency ablation (RFA) provides complete ablation of most of the tumours less than 3 cm and away from vessels larger than 3 mm. For tumours larger than 3 cm success rate of RFA decreases due to limited volume of ablation that can be obtained with one RF delivery and impossibility to deliver treatment through several RFA electrodes at the same time. Success rate of RFA also decreases when tumours are close to large vessels. Microwave (MWA) might be a valid answer to these difficulties in size and vascular cooling due to the possibility to use several microwave antennas at the same time and better thermal profile, namely by being able to reach rapidly temperature superior to the ones used for RFA. High MWA energy can be nowadays delivered through microwave antennas inserted percutaneously, especially due to needle shaft cooling. Synergy has been demonstrated when multiple antennas are used at the same time. Consequently, MWA has been applied in lung, liver and kidney ablation where large ablation volumes were obtained with promising success rate of complete ablation when treating large tumour. Great care should be taken to avoid complications that can occur when very large volumes of ablation are performed. Peritoneal carcinomatosis is usually associated with a poor overall survival rate.