An emotional Christie told BBC Sport: "I have found it hard, but it is not always about medals. I have to keep pushing through."
Wilf O’Reilly Former Olympic short track speed skater
"I have never seen anything like what happened to Elise Christie. It is ridiculous to get a penalty for not crossing the line.
"It has never happened before, a penalty like this. If they want to ensure the skaters stay within the lines, they need a marker at the finishing line.
"It is a very harsh decision that the referee has made. To get the silver medal taken off her in the 500m, and to go out of the 1,500m as she did, will knock her confidence tremendously."
In the final straight at the Iceberg on the Olympic Park, the Scot moved inside and, with a burst of speed, passed Arianna Fontana, the Italian she had collided with in the 500m race.
The judges were reviewing the photo finish and that is when they spotted the infringement.
Christie was slightly wide of the official line and Team GB decided not to appeal against the decision having looked at the race footage.
Her coach, Nicky Gooch, who won Britain's only short track Olympic medal, in the 500m in 1994, said: "To the letter of the law it's probably right but she's clearly qualified through that race but the rules say you can't be inside the line."
Performance director Stuart Horsepool said the sport was unpredictable but the team were hoping their luck would change.
"We are talking about the smallest margin ever. There is nothing we can do. She was trying to win the race, she was lunging for the line," he said.
"She was making sure she was safe and she went what we are talking millimetres. These things happen in sport and there is no accounting for it.
Christie 'gobsmacked' by judges' ruling
"Luck doesn't even come into it. We have to pick ourselves up and come back on Tuesday and hopefully we can have good luck instead of all this horrendous back luck."
Christie's main event is the 1000m and she is considered a strong medal contender after becoming the first British woman to win a medal at the World Championships and she was the overall World Cup winner in 2013.
"I'm looking forward to getting back out there for the 1000m but it's been a hard few days and I'm struggling to bounce back. I'm just going to try my best," she added.
Defending Olympic champion Yang Zhou, of China, won gold with Korean Suk Hee Shim taking silver and Arianna Fontana, of Italy, bronze.
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