How Are Medical Imaging Advances Helping Ageing Australians?

An X-ray taken because of a sore wrist might reveal something you or a loved one never came in about: signs of thinning bones. That's one example of how medical imaging is changing. Advances in X-ray and CT technology, artificial intelligence and medical research are giving Australian doctors more information from medical scans and, in some cases, helping them identify health problems earlier.

For Australians getting older, and adult children helping ageing parents, these advances could mean earlier warnings about osteoporosis, better assessment of painful joints and improved detection of some serious diseases.

Helen Frazer is Clinical Director at St Vincent's Hospital BreastScreen and Associate Professor at the University of Melbourne. Dr. Frazer says the goal is to improve outcomes for women by enhancing current screening approaches.

Screening saves lives, but we can do it better. By combining expert radiologists with AI, we can detect cancers earlier, reduce unnecessary recalls and personalise screening based on risk.” — Dr. Helen Frazer.

The benefits can reach beyond the diagnosis itself. A fracture, worsening joint disease, cancer or dementia can affect mobility and the ability to live independently. Finding and treating a problem earlier may help you or a loved one remain active and at home longer.

Here's what's available now and what researchers are working on next.

AI Can Look for Bone Loss on an X-Ray Ordered for Something Else

Osteoporosis can develop quietly. Many people don't know their bones have weakened until a fall results in a fracture. Artificial intelligence is giving radiologists another way to identify people who may be at risk.

Lumus Imaging introduced an AI bone-health screening tool in Australia that automatically analyses eligible routine X-rays of the chest, spine, pelvis, knee, hand and wrist for signs suggesting low bone mineral density. If the technology detects a possible problem, a screening prompt can be included with the radiologist's findings.

There is no second X-ray and no additional radiation exposure from analyzing the existing image. The software does not diagnose osteoporosis. A GP or other doctor may recommend further assessment, which could include a bone mineral density test using dual-energy X-ray absorptiometry, commonly called DXA or DEXA.

A 2026 study published in Skeletal Radiology offers evidence of how this type of technology can work in clinical practice. The Canadian study analyzed 34,162 routine X-rays from patients aged 50 and older. AI flagged 19,004 images for possible low bone mineral density. Among 299 follow-up DXA examinations prompted by the AI findings, 193 patients had low bone mass, and 65 had osteoporosis.

The study also found that incorporating the AI tool into the radiology workflow nearly doubled initial bone-health assessments. The researchers disclosed financial ties to the company that developed the technology, an important limitation when interpreting the findings.

For Australians, the technology is no longer simply experimental. AI-assisted bone-health screening is being used in Australian diagnostic imaging, although availability depends on the provider. The distinction between screening and diagnosis is important. Australia's Healthdirect says DXA bone density scanning helps diagnose osteoporosis and assess fracture risk.

Finding low bone density before the first major fracture can be especially important later in life. A hip or spinal fracture can affect walking, balance and the ability to manage everyday activities independently.

Weight-Bearing Imaging Can Show How the Body Lines Up

Doctors don't always need to know only what a hip, knee, or spine looks like. Sometimes they need to see how different parts of the skeleton line up while a person is standing. EOS imaging is a low-dose X-ray system that can image large portions of the skeleton while a patient is in a natural, weight-bearing position. Ordinary X-rays can also be taken while someone is standing. EOS differs in its ability to capture simultaneous front and side images and assess relationships among the spine, pelvis, hips, knees, and lower limbs.

It can be useful for evaluating:

• Hip and knee alignment
• Spinal curvature and deformity
• Leg-length differences
• Overall skeletal balance
• Joint replacement planning
• Alignment before and after orthopaedic surgery

Some EOS systems can also use the images to create 3D models that help specialists take measurements and plan treatment. EOS is designed to produce these images at a relatively low radiation dose, an advantage when repeat imaging is needed.

For an older person with arthritis, spinal problems or difficulty walking, the information may help an orthopaedic specialist determine what's contributing to pain or mobility problems and what treatment may be appropriate.

Standing Xray machines are available at only a limited number of sites, including some in Brisbane. Sharper, highresolution scanners are found in parts of New South Wales and Melbourne’s eastern suburbs. The bonedensity software is different from both because it doesn’t rely on specialized equipment. It analyzes standard Xrays.

That makes the technology easier to access. Routine Xrays are offered at suburban clinics, not just major city centers. A patient in Brisbane’s western suburbs, for example, can get radiology imaging done in Ipswich rather than traveling into the city, and the software can read the same type of Xray produced there.

Photon-Counting CT Can Provide More Detail

Another advance reaching Australian imaging centres is photon-counting CT, or PCCT. A conventional CT scanner uses X-rays to create detailed cross-sectional images of the body. Photon-counting CT uses a newer type of detector that can count individual X-ray photons and measure their energy.

You may not notice much difference during the examination. The important difference is in the information captured by the scanner. Photon-counting CT can produce high-resolution images and provide radiologists with additional information about tissues and materials inside the body.

Potential uses include assessing cardiovascular disease, small fractures, lung disease and areas around metal implants, where conventional imaging can sometimes be more difficult to interpret.

The technology remains limited to selected locations.

Australia Is Screening Some People for Lung Cancer Before Symptoms Start

One of Australia's biggest recent changes in medical imaging isn't a new scanner. It's a national screening program. The National Lung Cancer Screening Program began on July 1, 2025. It uses low-dose CT to look for lung cancer in people at high risk who don't have signs or symptoms suggesting lung cancer.

To enter the program, people must be ages 50 to 70 and:

• Have no signs or symptoms suggesting lung cancer
• Currently smoke or have stopped smoking within the previous 10 years
• Have a cigarette smoking history of at least 30 pack-years

A health care provider also assesses whether the person is suitable for screening.

The low-dose CT scan is free for eligible participants because screening scans are mandatory bulk-billed Medicare services (Australia's universal national health care system). A consultation with a GP or other health care provider may still involve a fee if the provider doesn't bulk bill.

Screening generally takes place every two years, although some findings can require an earlier follow-up scan. Once someone is eligible and enrolled, screening can continue even after it has been more than 10 years since the person stopped smoking, provided the participant otherwise remains eligible. People age out of the program when they turn 71.

The goal is to find lung cancer earlier, when treatment may have a better chance of success. Australians who think they may qualify should discuss their smoking history and eligibility with their GP or another participating health professional.

Researchers Are Looking for Earlier Signs of Dementia Risk

Australian researchers are also studying whether medical imaging can reveal changes associated with cognitive decline earlier. In September 2026, UNSW Sydney announced a new five-year Centre of Research Excellence in Vascular Contributions to Dementia, supported by the National Health and Medical Research Council. The centre is led by Scientia Professor Perminder Sachdev, co-director of UNSW's Centre for Healthy Brain Ageing.

Vascular cognitive impairment and dementia, or VCID, involves problems with blood vessels and blood flow that contribute to cognitive decline. According to UNSW, VCID may account for up to one in four dementia cases and contributes to around half of cases where dementia has multiple underlying causes.

Researchers plan to develop and study blood, brain-imaging and retinal biomarkers that could support earlier and more accurate diagnosis. The research is particularly important because several risk factors associated with vascular cognitive impairment can be modified, including high blood pressure, diabetes, stroke and heart disease, along with some lifestyle factors.

This is research, not a dementia screening test routinely available to older Australians. But it shows where imaging research is heading: looking for disease processes earlier, when prevention, treatment or better management may have more opportunity to help.

Imaging Is Only One Part of the Diagnosis

Better technology doesn't mean every older person needs more scans. X-rays and CT examinations use ionising radiation, although the amount varies considerably depending on the examination. A doctor considers the reason for the scan, expected benefit, radiation exposure and the patient's health history when deciding whether imaging is appropriate.

AI doesn't replace a radiologist or a doctor's judgment either. An abnormality found on an X-ray may lead to another test rather than an immediate diagnosis. A suspicious finding on a screening CT doesn't necessarily mean someone has cancer. More sensitive imaging can also uncover incidental findings unrelated to the original reason for the examination.

Patients can ask why a scan is being recommended, what it may show, whether there are risks, and what happens if something unexpected is found. Medicare covers some or all of the cost of eligible diagnostic imaging services listed on the Medicare Benefits Schedule, including X-rays, CT, MRI, ultrasound and nuclear medicine. Imaging providers can set their own fees, however, so patients may still have out-of-pocket costs unless a service is bulk billed.

Access Can Be Different Outside Australia's Major Cities

Where an Australian lives can affect access to some of the newest imaging technology. Specialised equipment such as EOS and photon-counting CT remains concentrated at selected hospitals and imaging centres. Someone living in a regional or remote community may have to travel if a specialist believes one of these examinations is needed.

Standard X-ray and CT services are much more widely available. Software-based advances could eventually help narrow part of that gap because some AI tools can analyse images produced by existing equipment rather than requiring an entirely new type of scanner. Whether that happens broadly will depend on adoption by imaging providers.

Australia's National Lung Cancer Screening Program has taken a more direct approach to geographic access. The federal government commissioned Heart of Australia to bring mobile screening to rural and remote communities. Five trucks, each fitted with a battery-powered CT scanner, are being rolled out in phases.

The first truck, HEART 7, began visiting the Kimberley and Pilbara regions of Western Australia in November 2025. A second truck started a route through 22 remote Northern Territory communities in May 2026. All five trucks are scheduled to be on the road by March 2027, with service expected in every state and territory by 2027. Once the full fleet is running, the trucks are expected to reach about 50 rural and remote communities each year.

When Diagnosis Becomes an Ageing and Aged Care Issue

The value of earlier diagnosis becomes clearer when you consider what often causes an older person to need help. It isn't ageing by itself.

A fall followed by a hip fracture may suddenly make bathing, dressing or getting around the house difficult. Severe arthritis can gradually make stairs, shopping or meal preparation harder. A stroke can affect movement or speech. Dementia can eventually interfere with medications, finances, personal care and safety.

Cancer and other serious illnesses can also leave someone temporarily or permanently needing help they didn't need before. That's where medical care and aged care begin to overlap. Australia's aged care system provides different levels of support depending on a person's needs. Services can be delivered at home, in the community or in residential aged care.

The Support at Home program replaced the Home Care Packages Program and Short-Term Restorative Care Programme in 2025. It is designed to help older Australians remain independent at home and includes ongoing services as well as pathways for restorative care, assistive technology, home modifications and end-of-life support.

The Restorative Care Pathway provides short-term, higher-intensity support aimed at helping an older person maintain or regain function and independence.

A medical scan doesn't determine whether someone will eventually need aged care. But the condition it identifies — and how well that condition can be treated or managed — may affect mobility, function and independence.

Earlier Answers Can Help Families Plan Ahead

This is ultimately why advances in medical imaging matter as Australians get older. A warning about low bone density may lead to treatment intended to reduce fracture risk. Better weight-bearing images may help a specialist understand why walking has become painful. More detailed CT imaging may clarify a difficult diagnosis. Lung screening can identify cancer before symptoms appear. Future imaging and biomarker research may improve how doctors recognise vascular changes associated with cognitive decline.

None of these advances guarantees that someone will avoid disability or the need for aged care. They can, however, give families something valuable: more information and, sometimes, more time.Earlier information can create an opportunity to treat a condition, begin rehabilitation, make a home safer, arrange support and talk about what an older person wants if additional help becomes necessary.

For many Australians, the goal isn't simply to live longer. It's to stay healthy, mobile and independent for as long as possible. Australia's aged care system increasingly places an emphasis on supporting people at home when that can be done safely, with residential aged care available when someone's needs can no longer be adequately met at home.

Medical imaging is only one part of that picture. But as scans become more detailed and software finds useful information that might once have gone unnoticed, physicians, older adults and families may have a better understanding of what they're dealing with.

And when a health problem begins to affect independence, knowing more about it sooner can make it easier to plan what comes next.