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DR. Dr. Melek Nur Yavuz said that success rates in the treatment of cancer have gradually increased in the field of radiotherapy (radiotherapy).
Radiation therapy is one of the most important treatments in cancer patients for over 100 years. Yavuz said: "In recent years, there has been a very important development in the field of radiotherapy. The common feature of all these innovations is that the cancer tissue is better targeted and the radiation to the surrounding normal tissues is much lower. Contemporary imaging modalities such as computed tomography and MRI have been incorporated directly into radiotherapy devices to allow frequent confirmation of tumor coordinates and direct patient positioning during treatment. This approach, applicable to a range of radiotherapy techniques, is (GKRT). "
" No unnecessary radiation is given to normal tissue "
Yavuz," 3D conformal radiotherapy is performed by CT or MRI to better focus the radiation on the tumor and avoid unnecessary radiation of tissue We focus daily on the same coordinates for a few minutes of sessions and 5 days a week for 4 weeks, computer software is used to monitor the mobile organs and tumors during their irradiation and irradiate them depending on the locus and to irradiate This technique is particularly suitable for moving areas such as lung, liver, pancreas or breast.The critical healthy structures, such as veins, can be divided into multi-component beam bundles, each of which can be adjusted. individually and individually, if the target is too contiguous or if the tumor has been turned, ART) In 3 dime In other words, the density of the beams passing through the normal tissues of the surrounding space, necessarily inside the ray beam, is reduced when the body is denser, so that the normal tissues are not irradiated. unnecessarily.
"Stereotactic radiosurgery (GammaKnife)" is a technique in which a thin layer of fine fibers is used in the treatment of normal tissues. "One or more sessions of this method are used in intracranial tumors (meningiomas, acoustic neuromas, arterial venom malformations and trigeminal neuralgia)," says Yavuz, who states that a locus is a very good commitment and that Normal tissues should be protected with a sensitivity of less than 1 millimeter. The Gamma Knife system requires that a patient positioning device (ie, a stereotaxic head frame) be closely connected directly to the patient and then to the treatment unit. The sessions of this treatment can take 45-60 minutes. In the Stereotactic Body Radiotherapy CyberKnife method, a small tumor with a robotic arm is a very good engagement and protection of normal tissue with a sensitivity less than 1 millimeter. Cyberknife is a linear accelerator mounted on a robot arm that provides more radiation beam orientation than b. If the target tumor is immobile or movement can be very well monitored and the location is also very reliable, normal tissue will receive minimal radiation, reducing or eliminating the need for fractionation. A single treatment is more appropriate than a six-week daily session. A single dose of high-intensity radiation also provides tumor destruction rates greater than an equal or greater dose of radiation divided into multiple applications because there is less opportunity to repair the damage to the DNA of cancer cells . This method, usually used in 3 to 5 sessions of 30 to 60 minutes, is used to treat tumors of all parts of the body, especially the lungs, liver, spine, kidneys, prostate and pancreas. "
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In the brachytherapy method, Dr. Yavuz points out that the source of radiation is permanently or temporarily placed in the patient, either directly in the tumor or very close to the tumor. " Uterine tumors Arm and leg sarcomas and oral cancers After the radiation source is placed in the patient, the patient is taken to a special treatment room where there is a period of treatment in hospital. Balloon catheters filled with liquid radioisotopes are also used to limit local recurrence after the first treatment of breast cancer and brain tumors;
Dr. Yavuz, from OnkoTalya Cancer Clinic, pointed out that success in the treatment of cancer gradually increased in radiotherapy: "After the first use of three-dimensional conformal radiotherapy in prostate cancer, effect s in the urinary tract and in the market have declined considerably. Later, when YART was used in prostate cancer, we saw that these side effects were much smaller. Tumors from moving areas, such as the lungs and just above or below the diaphragm, can be traced to anatomical images (four-dimensional radiotherapy) obtained quickly and can be fully targeted. With these applications, the protection of normal tissues is one more step. As a result, all these recent developments suggest that residual tumors can be targeted much more accurately, that they receive a much better dose, than normal tissues outside the tumor are much less exposed to radiation and that the side effects of radiotherapy are now significantly reduced. "
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