No abstract available

No abstract available

[en] Head and neck cancer is the commonest form of the cancer seen in Northern India. The present study analyzes the role of Cisplatin in head and neck cancer as anterior and posterior adjuvant to radiotherapy

[en] A breast applicator has been designed and constructed to fit with Eldorado 'A' cobalt-60 beam unit. The applicator is described. The applicator has been found to be useful for alignment of the radiation beam for the management of the chest wall through tangential fields. The overlapping at the junction of supraclavicular and tangential fields is also found to be controlled. The radiation reactions in axilla and skin are within normal limits. The set up for the treatment of chest wall with the applicator is described. (M.G.B.)

[en] This paper discusses experience with arc therapy on ⁶⁰Co unit. This study includes 20 patients presented to OPD during the period of January, 1999 to December, 2001

[en] In radiotherapy departments, there is a need to accurately measure the absorbed doses within and around the irradiated body tissues. It necessitates the use of carefully selected materials from which phantoms can be constructed. The fundamental advantage of such materials is that their employment can permit determination of absorbed doses in more realistic conditions. In general, the phantom used for dosimetry purposes is cubical and filled with homogenous material but the patient is neither cubic nor homogenous in composition. Doses data obtained from measurements in a 'phantom', therefore, can only be approximation to the doses being received at corresponding points in a patient. Though this approximation works well but for most accurate dosimetry work we need to develop an anatomical phantom, because bone attenuates more radiation than soft tissue or lung which is air filled their attenuation is less compared to soft tissue

[en] Evaluation of thyroid function can be carried out by measuring the uptake of orally administered radioactive iodine. The results of the thyroid uptake measurements for the period 1982-1987 in Christian Medical College, Ludhiana are presented here. About 3000 patients were screened during the analysis period. (author)

[en] With the advancement in technology in modern radiotherapy, small field dosimetry of photon beam has become the topic of interest. Specialized radiation treatments such as beamlet-based intensity-modulated radiation therapy (IMRT), image-guided radiation therapy (IGRT), tomo-therapy, stereotactic radiosurgery (SRS) with high-resolution multileaf collimator, Gamma-Knife, and CyberKnife rely on small field sizes of order of a few millimeters to treat tumors and simultaneously spare normal structures

[en] The present study provides the details of QA procedures of Hi speed spiral CT scanner using water filled performance phantom carried out in our institute

[en] The removal of the flattening filter (FF) results in significant increase in dose rate and dose per pulse, softening of X-ray spectrum, reduction in the energy variation across the beam, decrease in head scattering, and hence reduces the leakage and out-of-field dose respectively. The purpose of this research work is to statistically analyse the dosimetric properties of a Linear accelerator with FF and without FF photon beams