European Champions Cup bosses are weighing up whether to adopt Hawk-Eye after the technology's use at the World Cup.
TMO referrals received widespread early criticism at the World Cup, with the first-half of England's opening match against Fiji lasting almost an hour.
European Professional Club Rugby are now in discussions over whether to use the Hawk-Eye system, which allows the TMO to pool all available camera angles.
Donal Courtney, head of match officials at EPCR, praised Hawk-Eye's accuracy, but admitted further discussion is required.
"It's important to understand that the Hawk-Eye system that was used was a trial in the World Cup," Courtney said. "The technology's quite expensive.
"It's something we'll look at on whether we can bring it into European Rugby, but we're not using it as things stand.
"That's something we need to look at, and it is an expensive piece of kit. There may also be alternative products, so that's all up for discussion now."
Courtney defended Hawk-Eye's impact on the World Cup, despite supporters and television viewers expressing their displeasure at delays in matches.
"If you look at the World Cup the first couple of matches I think there was a little bit of difficult lining up all the angles, so there were some logistical issues there," Courtney said. "There were a few issues around delays, but the average number of TMO calls in our competition was 1.9 per game last season.
"And at the World Cup it was 2.9, so you got on average an extra call per game as a result of Hawk-Eye.
"Some games you may have none, some you have six or seven, but I think it's a very good product and it allows us to get decisions right.
"There will be a review of the whole TMO process coming out of the World Cup, so what happens over the next few months, we don't know."