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Health News

Wearable heart monitor (ECG) ticks all the boxes for better healthcare: study

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Inventors PhD scholar Peter Elango and Professor Madhu Bhaskaran holding the dry electrodes, which are part of the RMIT ECG device. Credit- Seamus Daniel, RMIT University

Wearable heart monitor (ECG) ticks all the boxes for better healthcare: study

 

RMIT University

A new compact, lightweight, gel-free and waterproof electrocardiogram (ECG) sensor offers more comfort and less skin irritation, compared to similar heart monitoring devices on the market.

ECGs help manage cardiovascular disease – which affects around 4 million Australians and kills more than 100 people every day – by alerting users to seek medical care.

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The team led by RMIT University in Australia has made the wearable ECG device that could be used to prevent heart attacks for people with cardiovascular disease, including in remote healthcare and ambulatory care settings. While most wearable ECG monitors typically weigh a few hundred grams, the RMIT device weighs only 10 grams.

The latest research is published in AIP Applied Physics Reviews.

Lead author PhD scholar Peter Elango from RMIT said heart attacks often occurred with little or no warning, as signals were difficult to spot without continuous monitoring.

“Nearly half of the people who have heart attacks do not realise what’s happening until it’s too late,” Elango said.

“My dream is a world with zero preventable heart attacks.”

Elango was one of the top 10 competitors at the recent Falling Walls Lab Australia 2023 Final at the Australian Shine Dome in Canberra, where he gave a pitch about the ECG device.

RMIT has filed an international patent (PCT) application to protect the ECG device that the team developed.

“RMIT is exploring ways to translate the work into a commercial product, and we are in discussions with partners regarding potential licensing opportunities,” Elango said.

An artist's impression of the RMIT ECG device, showing the various layers including a dressing, Bluetooth module and dry electrodes. Credit- Supplied by the research team

An artist’s impression of the RMIT ECG device, showing the various layers including a dressing, Bluetooth module and dry electrodes. Credit- Supplied by the research team

Optimising design and comfort

Professor Madhu Bhaskaran, Deputy Director (Research) of the ARC Hub for Connected Sensors for Health at RMIT said the team’s focus was on improving the electrode design and materials for increased performance as well as comfort.

“Commercially available wearable ECG devices are usually bulky, heavy and have 12 ‘wet’ electrodes connecting the patient to the device, whereas the RMIT invention can fit in the palm of your hand,” Bhaskaran said.

“The device has just three ‘dry’ electrodes that are almost invisibly thin, can sense even the slightest signals of a heart in distress, and can also be recycled.”

Wet electrodes contain a conductive gel to increase cardiac signals, while dry electrodes do not need this gel to operate effectively.

“Wet electrodes are uncomfortable, dry out over time and have been known to cause skin irritation,” Bhaskaran said.

The team’s experiments tested the RMIT miniaturised three-electrode ECG device’s sensing performance against a 12-electrode wearable monitor on the market, demonstrating a comparable level of precision in capturing the heart’s electrical activity.

“The RMIT device efficiently captures the heart’s activity, whether the user is at rest or experiencing stress,” Bhaskaran said.

The dry electrodes (foreground), dressing and Bluetooth module that form parts of the RMIT ECG device. Credit- Seamus Daniel, RMIT University

The dry electrodes (foreground), dressing and Bluetooth module that form parts of the RMIT ECG device. Credit- Seamus Daniel, RMIT University

Enabling continuous monitoring 

ECG data recorded over time helps obtain important diagnostic information concerning the activity of the patient’s heart.

To conduct continuous monitoring, Elango said dry electrodes offered some significant advantages.

“Dry electrodes prioritise user comfort, remain durable over time and reduce the likelihood of skin irritation,” Elango said.

“The electrodes are also hydrophobic, meaning they don’t get wet, and so a user can wear the device while they do activities in the water such as swimming and showering – unlike other ECG monitors.

“These attributes make them ideal for continuous monitoring – a crucial feature for wearable ECG devices.”

After extensive experimentation, the team discovered that a hexagonal design was the “winning formula”, as it suits the curvy nature of skin and active lifestyles and more accurately captures ECG signals, compared with other wearable devices on the market.

“The device can capture ECG signals even when it is fitted behind a person’s neck – ideal for patients in the aged care sector, including for someone with dementia who may remove it from their chest.”

But it wasn’t all about design aesthetics, Elango said.

“We also dived into the nitty gritty of how different body areas influence ECG measurements. This yielded valuable insights to enhance sensor performance,” he said.

“The dry electrodes, which are less than one tenth the width of a human hair, are highly sensitive to the cardiac signals of the user.”

 

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Health News

Private Health Insurance Costs Under Scrutiny as Premiums and Profits Soar

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Private Health Insurance Costs Under Scrutiny as Premiums and Profits Soar
Private Health Insurance Costs Under Scrutiny as Premiums and Profits Soar

Private Health Insurance Costs Under Scrutiny as Premiums and Profits Soar

Recent data analysis has spotlighted a concerning trend in the private health insurance sector, prompting a significant outcry for a comprehensive review. A surge in premiums has been linked not just to rising healthcare costs but also to an increase in insurer profits and management expenses, igniting a fierce debate between health professionals and insurance providers. Rising health insurance premiums

A study by the Australian Medical Association (AMA) reveals that while net insurance profits soared by over 50% from June 2019 to June 2023, patient rebates only saw a modest rise of 3.6%. This discrepancy raises questions about the allocation of premium dollars, suggesting that a substantial portion is diverted towards enhancing profit margins and covering operational costs, rather than directly benefiting policyholders through medical treatments or hospital care.

The findings have fuelled a dispute highlighted in a recent ABC Four Corners report, which accused some providers of overcharging for medical procedures, a claim refuted by the insurers but supported by insider revelations. The AMA has criticized the private health sector for not meeting the expected standards of financial management and transparency, suggesting that premiums are increasingly used to cover costs unrelated to patient care. Rising health insurance premiums

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In defence, industry representatives like Dr. Rachel David, CEO of Private Health Australia, argue that management expenses are rigorously monitored and justified, attributing rising costs to broader economic inflation affecting all sectors. However, this assertion does little to pacify concerns about the disproportionate growth in profits and administrative expenses compared to the relatively stagnant increase in patient benefits.

The debate extends to the efficiency of fund utilization, with the AMA advocating for insurers to return at least 90 cents per dollar of premiums to policyholders, a standard that currently stands at about 86 cents, significantly higher than general insurance returns but below the proposed benchmark.

Amidst these escalating tensions and conflicting reports, National Seniors Australia has called on the Federal Government to assign the Productivity Commission the task of conducting an in-depth inquiry. This investigation would scrutinize the continual rise in private health insurance premiums and out-of-pocket expenses, assess the value and scope of coverage, and propose necessary reforms to curtail costs and enhance service value, particularly for older Australians.

The proposed comprehensive review aims to halt the relentless cycle of premium hikes and restricted coverage that plagues policyholders, ensuring a fair, transparent, and efficient system that prioritizes patient care over profit. As stakeholders brace for a potential overhaul, the spotlight remains firmly on the need for a balanced and equitable approach to healthcare funding.

Supporters and concerned policyholders are encouraged to join the advocacy efforts by participating in National Seniors or contributing to the Health Costs campaign, as stakeholders push for a resolution that could redefine the landscape of private health insurance in Australia.

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Health News

Time for action on a NSW Autism Strategy

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NSW-Northern-Rivers-Breaking-News

Time for action on a NSW Autism Strategy

 

STATE Member for Lismore Janelle Saffin says she welcomes the Australian Government’s recent release of the Draft NSW Autism Strategy.

Ms Saffin says “it provides the State and Territory governments with the opportunity to engage with the Draft National Autism Strategy.

“We need a NSW Autism Strategy and I have had discussions with the relevant Minister in the Minns Labor Government, Kate Washington,” Ms Saffin says.

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“I raised the importance of an autism strategy in the NSW Parliament last year. South Australia is way ahead of us.  Now we have the Draft National Autism Strategy, we need to seize the momentum and get a New South Wales strategy to break down barriers for autistic children and adults and their families.”

President of the Northern Rivers Autism Association Micheal Lynch has teamed up with Business NSW Northern Rivers Regional Director Jane Laverty to co-host an Autism@Work business luncheon at the Ballina RSL Auditorium from noon today (Tuesday, 9 April).

The event, titled Embracing a Neurodiverse Workforce, celebrates Autism Awareness Month and guest speaker will be former dual-code international for rugby league and rugby union Mat Rogers.

Ms Saffin says she will be an apology as she is recovering from Covid.

“A panel of speakers for today’s event is sure to discuss the Draft National Autism Strategy,” Ms Saffin says.

“It is clear from the draft that the states and territories and Federal Government need to work together because the strategy covers polices across both levels of government.

“The states have primary responsibility for the key areas of education, health, justice and housing.

“It is the states that have responsibility for pre-schools for example, where children are at critical age for early intervention which can make a huge difference.

“This is an opportunity for National Cabinet to tackle the crossover of responsibilities and ensure that this is an effective, properly funded strategy without gaps for people to slip through.

“Being in a rural or regional area can add another layer of disadvantage, so it is important that people from this region give their feedback to the national strategy.”

For more information on the Draft National Autism Strategy and to give feedback, visit here.

 

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AI-Powered MedTech Breakthrough: CSIRO and Singular Health Unveil Revolutionary Spinal Vertebrae Segmentation Technology

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An example of spinal segmentation software. CSIRO

AI-Powered MedTech Breakthrough: CSIRO and Singular Health Unveil Revolutionary Spinal Vertebrae Segmentation Technology

 

A groundbreaking AI-powered medical technology, developed through collaboration between CSIRO‘s Data61 and Australian Medical Imaging Company Singular Health, swiftly segments spinal vertebrae with an impressive 95% accuracy rate within a mere two minutes. This innovation holds the promise of revolutionising surgical planning and facilitating the design of customised implants for medical professionals.

Traditionally, the segmentation of spinal vertebrae in computerised tomography (CT) scans has demanded extensive manual labour, involving countless hours of meticulous identification and markups. However, the advent of AI automation heralds a transformative shift in this arduous process, significantly reducing time and effort while ensuring exceptional segmentation precision and localisation accuracy, as elucidated by Dr. Dadong Wang, Research Lead at Data61.

Singular Health’s Executive Director of Innovation, Dr. Guan Tay, underscores the game-changing potential of this automated segmentation technology. By integrating AI-driven automation into the segmentation process, medical professionals will now only need to make minor adjustments and validate the software’s outputs. This semi-automated approach empowers surgeons and radiologists to fine-tune the results according to their interpretations, ensuring meticulous compliance with image analysis standards while substantially streamlining processing time.

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The utilisation of artificial intelligence in medical imaging, particularly in radiology, stands poised to profoundly reshape workflow dynamics for radiologists.

Leveraging a comprehensive dataset comprising over 200 CT scans of labelled data, the Data61 team meticulously explored various AI models and pre-processing techniques to achieve precise instance segmentation, labelling, surface meshing, and spatial localisation of individual vertebrae.

Dr. Wang elaborates on the AI development process, highlighting the adaptation of deep learning-based instance segmentation methodologies such as nnUNET, SC-NET, and Dense-NET. These models were rigorously trained using the VerSe’2020 dataset, comprising 100 CT scans of spines from individuals spanning diverse age groups and genders. Subsequently, the trained models underwent rigorous testing on an additional 100 CT scans, generating segmented labels of the spine, individual vertebrae, spatial coordinates, and vertebra identification.

The integration of this cutting-edge technology into Singular Health’s MedVR software represents a significant milestone, offering a transformative solution for hospitals, clinicians, educational institutions, and universities alike. This milestone achievement was made possible through the CSIRO Kick–Start initiative, which extends funding and support to innovative Australian start-ups and small businesses, granting access to CSIRO’s unparalleled research and development (R&D) expertise and capabilities.

 

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