Fiona Doyle has welcomed the Court of Appeal's decision to impose a more severe prison sentence on her 74-year-old father for raping her when she was a child.

Patrick O'Brien had originally been given a 12-year jail term with nine years suspended.

Today, the President of the Court of Appeal, Mr Justice Ryan, agreed with the 12-year prison sentence but suspended three instead of the nine years that had been ordered in the original judgment.

After the ruling, Ms Doyle said she was delighted, and that she was not a victim any more, but a survivor.

She described her father as "a monster" who got what he "deserves" and is "back where he belongs".

During the trial, Ms Doyle said she believed her mother knew about the abuse and said today that she had written to the Garda Commissioner seeking to have this investigated.

She said she had "taken back control of her life" and also said that her story is now being made into a film.

Fiona Doyle says she 'walked out a survivor'

The revised sentence follows a finding by the Court of Appeal that his original sentence was lenient.

O'Brien was originally jailed for three years after admitting to the rape and indecent assault of Fiona when she was a child at their home in Dún Laoghaire from 1973 to 1982.

Sentencing judge Mr Justice Paul Carney had described O'Brien's abuse of his daughter as one of the worst cases one could possibly find.

Taking account of his health problems, Mr Justice Carney sentenced O'Brien to 12 years in prison, suspended the final nine and granted him bail pending an appeal.

Bail was taken from him a few days later, the court heard.

Following a review of his sentence, the Court of Appeal stated last week that despite serious illness and advanced age O'Brien could not be considered a person for whom prison would be "impossible to tolerate".

The court found that Mr Justice Carney erred in principle in suspending nine years of the 12-year sentence he handed down in the case last year.

It imposed a new sentence on O'Brien today.

O'Brien is elderly, suffers from diabetes and is visually impaired but the court said none of these conditions were life threatening and could be managed with appropriate medical treatment in custody.

Mr Justice Sean Ryan pointed out today that the challenge was to the suspension of nine years, not the original sentence, and ruled that 12 years was the appropriate term.

He said the court would allow O'Brien credit for his guilty plea and suspended three years of the original sentence.

He said a guilty plea was a most important feature in a case where the accused acknowledges responsibility but particularly in a case of historic sexual abuse.

Sometimes, he said, victims were abused as children and disbelieved as adults and a guilty plea removed one of those potential wrongs.

He also said the court wished to observe that should O'Brien's health deteriorate, the executive had the power to take account of that and make arrangements for it including remission or temporary release.