Lung Cancer Radiation Therapy: Intensity Modulated Radiation Therapy

Radiation therapy is usually given by external beam, using machines located outside the body that deliver x-rays or electrons to the location of the tumor.
By: Pankaj Nagpal
 
June 21, 2010 - PRLog -- WHAT IS LUNG CANCER?

Lung cancer starts in the cells of the lung .The lungs are in the chest on either side of the heart. The right lung has 3components or lobes and the left lung 2 lobes. Air is inhaled through the nose and throat and flows past the voice box (larynx) into the windpipe (Trachea).The windpipe divides into 2tubes the left and right bronchi which supply air to each lung within the lung the tubes get smaller and smaller (bronchioles)until they reach air sacs(alveoli) The alveoli's job is too add oxygen to the blood and to take waste gases out. The waste gas is removed from the body as exhale

Symptoms of Lung Cancer


Lung cancer often does not produce symptoms in the early stages. When symptoms do occur, they are a result of tumor growth, pressure and invasion on nearby structures and nerves, regional growths or metastasis.

If the cancer originated and grew in the bronchi and spread to nearby lymph nodes, the symptoms may include : -

  1. coughing (when a tumor grew and blocked a passage).
  2. coughing up blood.
  3. chest pain.
  4. shortness of breath.
  5. pneumonia.
  6. hoarseness (caused by pressure on a nerve).
  7. difficulty in swallowing (caused by an obstruction of the esophagus).

Diagnosis of Lung Cancer
The tests may include the following : -

  1. chest x-ray to look for growths
  2. a sputum test (phlegm coughed up from the lung) to detect cancerous cells
  3. Biopsy (the surgical removal of a small piece of tissue for microscopic examination). There are various methods to obtain a biopsy. One way is with a procedure called a bronchoscopy. A bronchoscopy involves inserting a flexible lighted tube (a bronchoscope) into the person's mouth or nose and guiding it into the bronchi........

Treatment of Lung Cancer in India
Surgical procedures that may be employed include wedge or segmental resection (removal of a portion of the affected lungs), lobetomy (removal of the entire lobe of the lung) or pneumonectomy (removal of the entire right or left lung).

Radiation therapy is usually given by external beam, using machines located outside the body that deliver x-rays or electrons to the location of the tumor. The radiation dose is based on the size and location of the tumor.
Intensity modulated radiation therapy

Intensity modulated radiation therapy (IMRT) is a powerful cancer-fighting technology. Annually, Mayo Clinic radiation oncologists treat more than 200 patients using IMRT.


Conditions Treated with IMRT

Oncologists consider IMRT to be ideal for prostate cancer as well as benign and malignant tumors of the head and neck, and other organs that lie near important body parts such as the eyes, optic nerves, brain, brain stem, salivary glands, bladder, rectum, small bowel, kidneys, liver, lung and spinal cord.......

How It Works

A more standard radiation therapy called three-dimensional conformal radiation therapy (3-D CRT) uses digital diagnostic imaging, computers and special software to conform the radiation beam to the shape of the tumor. IMRT is the latest advance in 3-D CRT technology. IMRT involves the use of varying intensities of hundreds of small radiation beams to produce dosage distributions that are more precise (conformal) than those possible with 3-D CRT.......

Advantages of IMRT

The advantages of IMRT, compared to traditional radiation therapies, include : -

   * Decreased radiation to normal sensitive surrounding tissue
   * Decreased chance of harming normal cells
   * Higher radiation dosage to cancer cells
   * Precise radiation distribution
   * Increased chance of destroying cancer cells

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End
Source:Pankaj Nagpal
Email:***@indiahospitaltour.com Email Verified
Zip:400103
Tags:Lung Cancer Treatment, Lung Cancer Symptom, Lung Cancerradiation Therapy, Imrt
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Location:Mumbai - Maharashtra - India
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