Cancer patients across the lower South Island are now being treated on a new radiation machine at Dunedin Hospital, ending months of work to replace an ageing unit without cutting anyone off from care.
The new machine is a linear accelerator, usually shortened to LINAC, and it cost $4.3 million. It arrived on site in May, went through six weeks of testing and commissioning to make sure it met safety and performance standards, and began treating its first patients in early July. It is one of three such machines in the radiation oncology department at Dunedin Hospital, and it takes the place of an older unit that had reached the end of its working life.
A linear accelerator uses beams of high-energy radiation to destroy cancer cells. The newer machines can shape and aim those beams far more tightly than the equipment they replace, which matters when a tumour sits close to healthy tissue or a sensitive organ. Health New Zealand says the Dunedin machine can target lesions to within one millimetre and deliver radiation from many different angles, so clinicians can give a higher dose straight to the tumour while sparing the tissue around it. That precision lowers the risk of side effects for patients.
The updated software on the machine also lets the team treat more than one tumour at the same time in some cases. That shortens overall treatment times and opens up approaches that were not possible on the old equipment, which is useful for patients whose cancer has spread to several sites.
Health Minister Simeon Brown announced the machine and framed it as a lift in cancer care for the south. In a statement he said the upgrade was “a significant step forward for cancer care in the South, giving patients access to more advanced, highly targeted treatment closer to home”. He said the new machine “can target very small lesions to within one millimetre and can deliver radiation to tumour sites from many different angles”, and that the updated software “also allows clinicians to treat multiple tumours at the same time, reducing overall treatment times for patients and allowing for some treatments that are not possible with older models”.
Brown said the latest generation machine replaced a unit that had reached the end of its working life and represented a significant investment in the region. The department serves patients from across the lower South Island, an area where the distances to treatment are long and where keeping services running locally saves people from having to travel much further north.
Keeping treatment going while one of the three machines was swapped out was its own piece of work. Health New Zealand says the radiation oncology team leaned on the department’s other two machines and worked extended hours so that patients did not face delays during the changeover. For people partway through a course of radiation, where treatment is often given daily over several weeks, that continuity is not a small thing.
The Otago Daily Times reported that the machine is now fully operational and treating patients. The wider rollout is part of a national programme to lift cancer treatment capacity, with older machines being replaced around the country as they wear out.
Radiation is one of the three main treatments for cancer, alongside surgery and drug therapies such as chemotherapy. Roughly half of all cancer patients will have radiation at some stage, either to try to cure the cancer or to ease symptoms, so the quality and reliability of the machines in a hospital’s bunker feeds directly into how well a region can look after its patients.
The machines themselves are large, expensive and heavily engineered. They sit in shielded rooms built to contain the radiation, and swapping one out involves removing the old unit, installing the new one and then running a long list of safety and calibration checks before a single patient is treated. That is why the process ran from the machine arriving in May through to treatment starting in July rather than happening overnight.
For the Southern district, the practical payoff is a modern machine that can do more, do it faster and do it with less collateral damage to healthy tissue, all without patients having to leave the region. According to a report published by Scoop, the new unit is now treating patients in Dunedin after completing its commissioning.
The upgrade is a reminder that a lot of the work behind good cancer care is quiet and technical, carried out in bunkers and testing schedules rather than headlines. For patients in the lower South Island waiting on radiation, though, a newer machine treating people closer to home is the kind of change that lands where it matters.
What do you think about how cancer services are resourced in your part of the country? Have your say in the comments below.
This article was written by AI, briefed to report the facts, hopefully without some of the bias people bring to the job 🙂
Leave a Reply