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BUY NOTES

BUY NOTES

Radiotherapy principal

When Radiation is applied from outside the body in the form of a beam, this situation is called External Beam Radiotherapy . Apart from this, Radiation can also be given by placing Rdioactive source inside the body,   says Intracavitory / Intraluminal Radiotherapy .  

In Interstitial Radiotherapy   , the  radioactive source is directly  implanted in the tissue . 
Radioactive Fluids are injected directly into the body through artery and vein in some diseases .

Aim of Radiotherapy 

Radiotherapy is usually given by the Radical or Palliative method according to the need of treatment of each patient.

Radical Treatment 

Radical treatment , given in a planned manner to a patient to cure his disease , is called radical treatment. Treatment of such a patient includes a tumor in the tratment area and the area around it where microscopic disease is  present. In this type of treatment, the radiation beam is applied to the tumor from more than one direction, and sometimes more than one type of radiotherapy (eg Teletherapy or Brachytherapy ) is used. The radiation dose given in it is very high, which also has side effects, but these side effects are acceptable for treatment. 

Palliative Treatment

The purpose of palliative radiotherapy is to relieve the patient from symptoms caused by advanced cancer, such as in most lung cancer  , this treatment is simpler  than the radical treatment , and it is given for a short time. In palliative treatment, the patient is given a low dose for a short time, so that minimal side effects are produced. 

How is Radiotherapy Administered

The radiotherapy machine that generates radiation has the characteristic that it can align the tumor of the patient in the radiation emitting side properly. External beam radiotherapy consists of a light field, which mimic like a radiation field, and at the same time marks are placed on the surface of the patient, which determines the field to be applied to the radiation beam, so that the surface of the body And the deep tumor can be cured.
Brachytherapy consists of a guide tube through which the radiation source is inserted into the body cavity or tissue, and this radioactive source is removed after treatment. Radiotherapy Treatment , Radiotherapist is determined by |
Each course of treatment is given a different number of fractions or doses , and each is given on a certain day. Generally, a fraction is given each day in radiotherapy. Treatment start  before t
issue is taken to localize and is calculated as a suitable treatment schedule, which Radiotherapy Treatment Planning says | By this, it is ensured that the planned treatment is given accurate to the tumor. That radiotherapy treatment  and therapeutic radiography base  is.

Radiotherapy treatment option

Patient his malignant disease in several types of radiotherapy treatment option are | A patient  can be treated by one or more treatment modality . Second Assistant ( Adjuvant ) therapy such as Chemotherapy and radiotherapy can be inserted (combine) with .
External beam X-rays of varying energy are used in most radiotherapy treatment . For which many types of machines are available, in some departments electron beam is also used for treatment. For certain purposes, such a machine is used for the treatment of gamma-rays.Generates radioactive isotope . Besides external beam particle therapy  is also used for the treatment of |