Katherine Heigl wants to stay in "Grey's Anatomy"

Katherine Heigl, 30, who plays the part of Dr. Izzie Stevens in "Grey's Anatomy".Last friday Katherine Heigl said that she's ready to stay with "Grey's Anatomy" and the decision rests with the show.

Attending a studio party to mark the ABC medical drama's 100th episode,Katherine Heigl said it's premature to think her days as Dr. Izzie Stevens are numbered.

"I was assuming that at one point and I got a lot of shrugged shoulders and shakes of the head, so I don't know if that's a yes or a no. No one will tell me and I don't know how this is going to go," Katherine Heigl said.

"I don't know if I live or die. I don't know how Izzie fares," said the actress, who's played the character since the show debuted in 2005.

"I'm there" if Izzie remains part of "Grey's Anatomy," Heigl said. She called the set "one of my favorite places to be" and said her colleagues are also friends.

On Thursday's episode, Izzie was seen surviving brain surgery. There's been speculation that Heigl wants to pursue her blossoming film career ("Knocked Up," the upcoming "The Ugly Truth") full-time, and that her character might be killed off.

"I don't know if I want to continue for five years working 12 months a year, but I can take at least another year or two," she added.