Englisch 12 Englisch 13 GB The application technique of Radio Frequency Ablation (RFA) that can be used depends on various factors: Distance of the tumor to tender tissue structure Size and geometry of the tumor-necrosis zone to be treated. Active and passive components of the HF-cycle The HEBU HFiT®-T enables the operator to use both, the monopolar and the bipolar technique. Bipolar Thermo Ablation offers significant advantages for safe surgery in areas near heat sensitive tissues or at insufficient imaging.The neutral electrode becomes unnecessary. This system is also suited for surgeons who prefer to combine the monopolar and bipolar technique in one single session. The short distance, which does not exceed 30mm, between the tips of the needles, transfers the entire bundled HF-Energy on the tissue. Bipolar RFA-Application Is applied on the targeted tissue through two parallel inserted active needle electrodes. This application supersedes the need of the neutral electrode. HEBU HFiT®-T for monopolar and bipolar Radio Frequency Thermo Ablation 0 2 4 6 8 10 12 14 0 2 3 4 5 6 Time/min RF-Energy-Input in 10³ Ws Monopolar RFA-Application A large surface neutral electrode with low heat capacity is attached to the patient as an electrical pole. After the local or general anesthesia the thermal active electrode is inserted. 0 20 0 5 10 15 20 40 60 80 Time/min RF-Energy/Ws/.10³ common salt power HEBU HFiT®-T-needle common salt power HEBU HFiT®-T-needle Imaging became a benchmark for progress of modern medicine. HEBU HFiT®-T is compatible to most of the imaging systems (Sonography, CT). Percutaneous or intraoperative placement of the needle as well as its thermal effect can be monitored over a standard imaging equipment. Variation of image quality may occur, depending on the imaging system. The choice of the imaging system is related on respective Indications: Type of therapy Type of anesthesia Experience of the operator in surgeries under image control The HEBU HFiT®-T was enhanced in cooperation with the ultrasound department (Director: Prof. Dr. D.Strobel) of Medical Clinic 1 of the University Hospital Erlangen. The assortment of diverse Needles with different active electrode lengths in conjunction with variable adjustable performance parameters ensure a treatment result that is optimized individually for the patient. The ultrasound images are showing a direct comparison before and after a sonographic controlled RFA on a patient with hepatocellular carcinoma (HCC) in the right hepatic lobe. HEBU HFiT®-T – the patient is the center of attention Advance through cooperation HEBU HFiT®-T in use Incision of HFiT®-T-Needle Source images: Universitätsklinikum Erlangen HCC before RFA HCC during RFA HCC before RFA (CEUS) Tumor necrosis after RFA (CEUS)
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