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1 Polish Journal of Medical Physics and Engineering

1 2018

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Influence of gold marker for magnetic resonance imaging during prostate radiotherapy

Tanaka O., Komeda H., Hirose S., Taniguchi T., Ono K., Yama E., Matsuo M.

Polish Journal of Medical Physics and Engineering

2018

Vol. 24, Iss. 3

99--101

Gold markers (GM) are increasingly used for CT and MRI registration during in intensity-modulated radiation therapy for prostate cancer. Additionally, diffusion-weighted imaging has been adopted to measure the effects of radiotherapy for prostate cancer, similar to tests of blood prostate-specific antigen levels. As diffusion-weighted imaging (DWI) is often affected by a magnetic component, we evaluated the influence of GM on the Diffusion weighted images in three cases. We found that the size range of signal void of GM in MRI was 2–5 mm. We conclude that a GM would not affect the quality of DWI in daily practice.