A select group of breast cancer patients have been able to receive radiation directed to their tumor. What is the process that has been in use since 2002?

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Multiple Choice

A select group of breast cancer patients have been able to receive radiation directed to their tumor. What is the process that has been in use since 2002?

Explanation:
Targeted radiation to the tumor bed using a brachytherapy device was developed to treat only the area at risk after lumpectomy. MammoSite uses a balloon catheter placed in the lumpectomy cavity, with a remote afterloader delivering a high-dose-rate Ir-192 source directly to the surrounding tissue. This approach, introduced and widely used starting around 2002, enables accelerated partial breast irradiation, shortening the overall treatment course compared with whole-breast radiation. While IMRT and IGRT are external-beam techniques that shape and verify dose across the breast, MammoSite embodies a localized, catheter-based method focused on the tumor bed.

Targeted radiation to the tumor bed using a brachytherapy device was developed to treat only the area at risk after lumpectomy. MammoSite uses a balloon catheter placed in the lumpectomy cavity, with a remote afterloader delivering a high-dose-rate Ir-192 source directly to the surrounding tissue. This approach, introduced and widely used starting around 2002, enables accelerated partial breast irradiation, shortening the overall treatment course compared with whole-breast radiation. While IMRT and IGRT are external-beam techniques that shape and verify dose across the breast, MammoSite embodies a localized, catheter-based method focused on the tumor bed.

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