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Leaky-wave focused Ultrasound through Metamaterial ENgineering (LUMEN)

Project description

Changing brain treatment with sound

Brain stimulation administered non-invasively may revolutionise the way we deal with conditions such as Parkinson’s tremor, essential tremor, neuropathic pain, and even cancer pain. Transcranial focused ultrasound (tFUS) is one such example, but the methods that exist today use expensive, invasive devices such as MRI and X-rays in order to correct distortions in the waves, making the process expensive and inaccurate. With this in mind, the ERC-funded LUMEN project presents a paradigm-shifting solution: wearable acoustic metasurfaces that regulate ultrasound waves at the origin. This makes tFUS affordable, efficient across variable skull conditions, and capable of targeting hard-to-reach areas in the brain. The overall goal is to make treatment safer and more inclusive.

Objective

Transcranial focused ultrasound (tFUS) is a promising non-invasive technology capable of targeting specific brain regions to treat, among others, movement disorders such as essential tremor and Parkinson’s disease tremor. Yet, its effectiveness is currently limited by the excitation of leaky Lamb waves, which radiate energy at arbitrary angles in the brain, causing undesired aberrations. To mitigate these effects, the state-of-the-art technology for tFUS relies on patient-tailored aberration compensation strategies that take advantage of more invasive techniques, such as MRI guidance and X-Rays, making tFUS not accessible for all patients, expensive, and not readily available for small-scale laboratories.
LUMEN addresses these challenges by dressing the patient with acoustic metasurfaces, engineered structures designed to manipulate wave propagation. Instead of compensating for aberrations a posteriori, this project leverages acoustic metasurfaces to control the leaky-wave radiation mechanism at the source, creating functional devices able to focus ultrasound without the need for more invasive and complex correction strategies, thereby revolutionizing the focusing mechanism of tFUS. This approach not only aims to make tFUS more affordable, but also enhances the ability of tFUS to reach peripherical regions of the brain that are typically hard to access and provides a focusing mechanism effective across diverse skull geometries, making it suitable to treat different patients.
The outcomes of this research have the potential to transform the treatment landscape for millions suffering from tremor disorders, neuropathic pain, cancer-related pain, while also advancing the fields of wave physics, medical imaging, and therapeutic technology. Achieving these goals could lead to more inclusive, non-invasive therapeutic options, greatly improving patients' quality of life and reducing healthcare costs globally.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-ERC - HORIZON ERC Grants

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Call for proposal

(opens in new window) ERC-2025-STG

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Host institution

POLITECNICO DI MILANO
Net EU contribution
€ 1 499 967,00
Address
PIAZZA LEONARDO DA VINCI 32
20133 Milano
Italy
Region
Nord-Ovest Lombardia Milano
Activity type
Higher or Secondary Education Establishments
Links
Total cost
€ 1 499 967,00

Beneficiaries (1)