A dancer with cancer inspired and stars in “Blank Canvas,” debuting this weekend ADI

Maggie Kudirka, 24, had been rehearsing a new dance for nearly four months before she found out what it was about: her. “Blank Canvas,” which premieres at the American Dance Institute on Friday as part of “Air Mail Dances,” portrays the “emotional roller coaster” of Kudirka’s life since she was diagnosed with incurable breast cancer last summer, choreographer Runqiao Du says.