Journal of Medical Physics
 Home | Search | Ahead of print | Current Issue | Archives | Instructions | Subscription | Login  The official journal of Association of Medical Physicists of India      
 Users online: 72  Home  EMail this page Print this page Decrease font size Default font size Increase font size 
Year : 2005  |  Volume : 30  |  Issue : 1  |  Page : 36-38

Day-To-Day Variation Patient Dose In Treatment Execution Of Carcinoma Breast



Correspondence Address:
P Sushama


Login to access the Email id

Source of Support: None, Conflict of Interest: None


Rights and PermissionsRights and Permissions

Radiotherapy plays an important role in the treatment of patients with breast cancer. The rationale for post mastectomy radiotherapy is to prevent recurrence of cancer in the chest wall, skin, mastectomy scar and the regional nodes (supra clavicular nodes and internal mammary nodes). Complexity of the shape and position of the irradiated volume of carcinoma breast, make it necessary to give a careful attention to the positioning of the patient and the technique involved. Patient has to be positioned carefully everyday in order to reduce doses to organ such as lung, contra lateral breast and thyroid. Radiation dose measurement is done for 20 cases with carcinoma breast using semiconductor detectors. The diode is kept in the central point of the entry field and the dose is measured in the case of tangential field treatment. Tangential field treatment is carried out using half beam block to reduce dose to the underlying lung tissue. The exit dose is also measured on the same day. The dose through supra clavicular field (SCF) is given in 20 equal intervals of dose and the dose is measured using the semiconductor detectors. Every day dose is compared and the variation, if any, is estimated. It is found that in about 50% of the treated cases more than 5% variation exists in the case of tangential treatment technique and less than 5% for SCF tratment.


[PDF]*
Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)
 

 Article Access Statistics
    Viewed455    
    Printed40    
    Emailed0    
    PDF Downloaded97    
    Comments [Add]    

Recommend this journal