July 29, 2008 - Not all parts of a tumor respond to radiation therapy in the same way.

Treatments in the future may target the most resistant tumor regions, but measuring this resistance is far from straightforward, a new analysis shows.

Common radiation therapy prescribes a uniform radiation dose to the entire tumor, even though it is commonly known that some regions resist radiation more than others. Researchers are therefore experimenting with ways to tailor the treatment, with so-called "dose painting," so that more radiation falls on the radio-resistant parts.

July 29, 2008 - For several years, doctors have known that certain stem cells migrate to the heart after a heart attack, but exactly how they get there and what purpose they serve remained uncertain.

July 29, 2008 – Taking a new leap in QA systems, Unfors Instruments Inc. showcased the Unfors Xi Survey detector at AAPM 2008.

A new feature of the Unfors Xi Platinum edition, the detector is the addition of the Unfors Xi Survey detector for measurements of leakage and scatter radiation.

July 29, 2008 – Eight new abstracts were presented at AAPM 2008 on prostate motion management in radiation therapy using the Calypso 4D Localization System by Calypso Medical Technologies Inc.

These scientific abstracts summarize clinical experiences with the first commercial installations of the Calypso System in radiation therapy.

July 29, 2008 - Accuray showcased its Sequential Optimization, a treatment planning optimization method designed specifically for the CyberKnife Robotic Radiosurgery System.