الفهرس 
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Abstract
Uterine fibroids are the most common pelvic tumors in women. Depending on their location, fibroids are divided into submucous which protrudes into uterine cavity, intramural found entirely within the uterine muscle layers, and subserosal, which protrudes outward from the serosal surface of the uterus.
Myomas are usually asymptomatic, but they may be associated with a variety of symptoms, which typically include bleeding abnormalities, pain, urinary frequency, constipation and reproductive problems.
Asymptomatic patients do not require treatment. Traditionally, surgery has been recommended as the primary treatment option for symptomatic fibroids. For women not planning future pregnancy, hysterectomy offers definite treatment. Those desiring future pregnancy have the options of myomectomy.
For the post two decades a Variety of imaging guided tumor ablation techniques for the local control of tumor has been introduced and clinically evaluated. Percutaneous image guided tumor ablation with use of thermal energy sources such as microwave, cryotherapy, laser and magnetic resonance-guided focused ultrasound (MRgFUS) have received much attention as minimally invasive strategies for focal treatment of solid tumors.
Recent trends toward these minimally invasive surgical options have emphasized decreased cost and time as well as reduced morbidity and mortality rates successful minimally invasive ,image-guide local treatment will have to meet these expectations without sacrificing efficacy.
UAE is a minimally invasive procedure during which embolic material is injected into the uterine vessels bilaterally. By reducing the blood supply, the size of the fibroids is reduced and most of the related symptoms improve, but symptomatic recurrent rate is 20 % at approximately five years after therapy.
Radiofrequency thermal ablation is being added to the arsenal of minimally invasive treatments of uterine fibroid.
RF system consist of a generator and needlelike electrodes with an insulated metal shaft and a non –insulated exposed distal active tip of variable length that is inserted into the lesion with imaging guidance . The exposed tip forms a direct electric contact with the surrounding tissue. The patient is made into electrical circuit by placing grounding pad on the thighs or back muscles.
Radiofrequency ablation induces in situ thermal coagulation necrosis through the delivery of high frequency alternating current to the tissue .Imaging help to detect treatable lesions, guide the placement of the probe, and assess the effect of therapy. US is used most frequency to determine whether the ablation is complete and to screen for early recurrences that may benefit from reablation.
Potential advantage of RF tumor ablation include decreased cost, minimal morbidity, minimal complications, and possibility of treatment of patient while under conscious sedation by using medications. The procedure can also be performed with general anesthesia, which can be helpful when lesions are unusually large and or difficult to target and when the patients has low tolerance for pain.