New CT technology to improve patient care

Kineta Knight
Kineta Knight
Sep 15, 2025 |
The very first new “Photon Counting” CT (PCCT) scanner in New Zealand / Supplied

For the first time in public hospitals across Australasia, patients will benefit from increased access and faster, higher-resolution imaging as part of Health New Zealand’s digital innovation programme aimed at improving patient outcomes.

The very first new “Photon Counting” CT (PCCT) scanner will today begin operating at Christchurch Hospital.

Health New Zealand Radiologist Dr Alistair Rumball-Smith said, “This technology offers a significant step change in image quality, similar to shifting from black-and-white TV to 4K Ultra HD.”

“We can see the potential of photon-counting technology across a range of clinical areas and, as the clinical benefits evolve, will explore broader applications and develop new models of care to maximise the technology’s impact,” Rumball-Smith said.

The PCCT scanner provides significantly sharper imaging than conventional CT machines, providing radiologists and cardiologists with better tools to do their job.

They improve the quality and quantity of cardiac services, helping them to meet national health targets. Semi-urgent and more routine procedures including patients with heart valve disease or chronic coronary syndrome will have diagnostic imaging quicker, freeing up staff and facilities to focus on patients with more acute or complex needs.

Health New Zealand CEO Dr Dale Bramley said the benefits to patients offered by the new PCCT scanner is just one example of how digital innovation can support better health outcomes.

“We will continue to invest in new technologies that support our teams to give patients better access to the treatments they need. The PCCT scanners are an excellent example of how advanced digital tools can assist us to do more and make best use of our clinical resources,” Bramley said.

Christchurch cardiologist and researcher Dr Charlotte Greer was recently awarded a Heart Foundation Senior Fellowship to explore the potential of PCCTs to evaluate heart muscle structure and function to diagnose heart diseases.

“Radiology has worked in partnership with Cardiology for many years. These machines provide an exciting opportunity to continue working together to evolve and improve outcomes for our patients,” Greer said.

Kineta Knight
Kineta Knight

Kineta Knight is a highly experienced journalist. She has worked as a reporter for radio, TV, digital and print, as well as an editor of lifestyle magazines in NZ and the UK. Kineta is the Head of Creative Christchurch, our new arts column, at Chris Lynch Media. Contact: [email protected]

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