Has anyone done the 3D-CRT short cycle radiation?

I am not sure about the "3D-CRT" however I did do the short cycle radiation. I am finishing up next week with 20 treatments total (this includes the last 4 being boost). I have a great RO who explained the test that have been completed on the short cycle and why I was a good candidate for this type of radiation. I pray that you and your doctor come up with the best plan for you and that you are doing well. 

I did. 16 treatments of hypofractionated radiation (basically, all “boosts”) to the tumor cavity and a small surrounding margin. Other than painless skin reddening, tanning over the scar, swelling of the tumor-cavity seroma (making that breast a cup size larger and skewing my cleavage to the left) and fibrosis of the tissue surrounding the seroma, I didn’t suffer any of the moderate-to-severe side effects of the long std. (28 whole-breast regular-strenght + 5 tumor-cavity boosts) protocol such as nausea, fatigue, skin irritation or breaking. My tumor was in a convenient location (upper outside of the R breast), small (1.3 cm), Luminal A, and I was nearly 65, which was why I was a candidate for it. There was no need to make a mold or tattoo me—just Sharpie markers covered by waterproof long-lasting clear tape.

Jiffrig, I don’t see why it wouldn’t work on the lymph nodes. They can target the beam with extreme precision.