radiofrequency ablation
![](https://pacs.de/sites/default/files/pictures/thumbs/upload.wikimedia.org/4/8/5/2/3/RFA_CT_Leber_001_thumb.jpg)
Radiofrequenzablation
eines Leberherdes. Kontrolle der Position mit ausgefahrenem Schirm. Das Bild ist als 15mm-Schicht gerechnet, um die einzelnen Schirmarme zu zeigen. Die Nadel liegt nicht genau in der Ebene des CT-Bildes, so dass die Eintrittsstelle durch die Haut nicht mit abgebildet ist.
![](https://pacs.de/sites/default/files/pictures/thumbs/data.pacs.de/1/1/9/0/2/5/849b7c87d04e47681db39825faff5b_big_gallery_thumb.jpg)
Radiofrequency
ablation • Osteoid osteoma - Ganzer Fall bei Radiopaedia
Radiofrequency ablation (RFA) is a medical procedure that uses a high-frequency alternating current produced by a radiofrequency generator oscillating in a closed-loop circuit. This current heats a needle to over 60°C, which is used to cause intentional protein denaturation and tissue damage .
Applications
- tumor ablation: established for the local destruction of liver, lung, and bone tumors, e.g. HCC and osteoid osteoma
- cardiac arrhythmia: used in the treatment of an abnormally discharging focus within the heart
- ablation neurotomy and pain management for specific nerve plexuses or Morton neuroma
- varicose veins: an alternative to sclerotherapy, as the produced heat causes closure of the affected vein
Complications
- thermal injuries to the adjacent structures: in liver tumor ablation, this means potential injury to the diaphragm, colon, gallbladder, or bile ducts, which may result in perforation, leakage of secretions, or stricture formation
- pneumothorax and pleural effusion: in lung tumor ablation
- hemorrhage: small vessels are more liable to hemorrhage more than large vessels which are rather protected by "heat sink" effect of flowing blood
- infection is a relatively low risk of radiofrequency ablation
- tumor seeding along the needle tract
- post-ablation syndrome: flu-like symptoms, including low-grade fever, chills, nausea, pain, and malaise. It is a self-limited condition that usually begins three days after ablation
- dysfunction of a cardiac pacemaker or defibrillator due to the use of radiofrequency waves
Siehe auch:
- Transarterielle Chemoembolisation
- Selektive interne Radiotherapie (SIRT)
- pancreatic radiofrequency ablation
- radiofrequency ablation treatment for localised prostate cancer
- percutaneous radiofrequency ablation (RFA) of post-menopausal breast cancer
- Laserinduzierte interstitielle Thermotherapie (LITT)
und weiter:
- selective internal radiation therapy
- embolisation of liver tumors
- Irreversible Elektroporation (IRE)
- Bildgebung nach ablativen Verfahren
- percutaneous tumor ablation
- Osteoid Osteoma Radio-frequency Ablation
- radiofrequency ablation treatment for the palliation of a large pancreatic secondary mass
- Radiofrequenzablation mit Balloninterposition zum Magen
- Radiofrequenzablation (RFA) bei pulmonalen Metastasen
- Radiofrequenzablation (RFA) bei Lungentumoren
![Click für weniger anzeigen](/sites/all/modules/pacs/tools/imgs/collapse_up.png)
![](/sites/all/modules/pacs/tools/imgs/Iris_color_40.png)