Radiosensitizers can also be delivered to solid tumors through the use of nano-carriers to make tumors more vulnerable to external radiation.
Therefore, since further evidence is provided that P-colloid is significantly more effective than external radiation or non-radioactive sclerosing agents, this treatment modality should be considered for the management of malignant pericardial effusion.
They were more often associated with external radiation exposure, not always with internal exposure.
The sex ratio was even higher (1.40) in the 345 offspring whose fathers' exposures were estimated from annual dose summaries and who had reportedly received more than 10 mSv of external radiation in the 3 months before conception.
Given the similar and repetitive structure of the liver parenchyma within and between patients, the detected heterogeneities in normal liver parenchyma can partly explain the survival of normal tissue in regions receiving a substantially higher mean absorbed dose than could be tolerated with more homogeneous dose distributions resulting from external radiation techniques.
They too reported that a continuous source of external radiation resulted in more effective target cell cytotoxicity and suggested that this may be related to suboptimal proximity between the luciferin and the hypericin.
Some critics of Astro, though, say the group has its own financial motives in preferring previous forms of external radiation — which, because they involve more trips to the doctor, tend to be more profitable for radiation oncologists.
In September doctors implanted radioactive seeds in his prostate, then began daily external radiation, which is to last for two more weeks.
At least two patients claimed that brachytherapy was more "direct," with a greater certainty of cure, in contrast with external radiation, which one man described as "let's aim at it and hope we get it".
Dr. Denberg said no solid evidence showed that brachytherapy was any more "direct" in its aim or effective in its results compared with external radiation.
