Search for: "irradiation" - 96 articles found

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News • Mechanical inactivation

'Nano traps' to lock up and neutralize viruses

To date, there are no effective antidotes against most virus infections. An interdisciplinary research team at the Technical University of Munich (TUM) has now developed a new approach: they engulf and neutralize viruses with nano-capsules tailored from genetic material using the DNA origami method. The strategy has already been tested against hepatitis and adeno-associated viruses in cell…

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News • Neuroscience

A deep dive into the brain

Researchers from ETH Zurich and University of Zurich have developed a new microscopy technique that lights up the brain with high resolution imagery. This allows neuroscientists to study brain functions and ailments more closely and non-​invasively.

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News • Combining MRI with particle beams

An important step towards live imaging in proton therapy

Researchers at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) want to build the world’s first prototype that tracks moving tumors with magnetic resonance imaging (MRI) in real time during proton therapy. They are combining a rotating open MRI device, designed for the LINAC-MR system from Alberta Health Services, with an actively scanned clinical-akin proton beam at OncoRay, the Dresden-based…

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News • Curbing collaterals

High energy radiotherapy ‘paints’ tumours, avoids healthy tissue

A radiotherapy technique which ‘paints’ tumours by targeting them precisely, and avoiding healthy tissue, has been devised in research led by the University of Strathclyde. Researchers used a magnetic lens to focus a Very High Electron Energy (VHEE) beam to a zone of a few millimetres. Concentrating the radiation into a small volume of high dose will enable it to be rapidly scanned across a…

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News • Better tissue discrimination, lower radioation dose

Improving image quality of CT scans

Computed tomography (CT) is one of the most effective medical tests for analysing the effects of many illnesses, including COVID-19, on the lungs. An international team led by the Universitat Oberta de Catalunya (UOC) has developed a new method that improves the quality of the images obtained from CT scans. The algorithm, which has been tested on simulated data, enables them to distinguish…

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News • Assistance in lymphedema treatment

New microsurgery robot shows promise

Supermicrosurgery – operations on vessels ranging from 0.3 to 0.8 millimeters – is limited by the dexterity of the surgeon’s hands. To bypass this limitation, robots can assist in the surgical process. One such robot is MUSA – the world’s first robotic platform for supermicrosurgery, which was co-developed by researchers from Eindhoven University of Technology (TU/e) and the TU/e…

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Article • WB-MRI vs. prostate cancer

Whole-body MRI improves disease evaluation

Whole-body magnetic resonance imaging (WB-MRI) is championed as offering significant benefits, such as improving disease evaluation for prostate cancer patients. During an intense session in genito-urinary cancer at ECR 2019, three key speakers focused on the advantages over conventional imaging modalities as well as discussing new PET (Positron Emission Tomography) tracers.

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News • Radiology research

Tuned X-rays for safer, more precise cancer radiation therapy

X-rays could be tuned to deliver a more effective punch that destroys cancer cells and not harm the body, researches from Kyoto University find. Gadolinium delivered into cancer cells releases killer electrons when hit by specially tuned X-rays. The approach, published in the journal Scientific Reports, could pave the way towards a new cancer radiation therapy. “Our method opens up the…

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News • Multi-component procedure

SULEEI: extending the functional lives of biological heart valve prostheses

For decades now, the Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP has been developing processes and systems for cleaning, sterilization, and surface modification. The newly in-house developed process, called SULEEI, makes it possible to sterilize (S) and preserve decellularized pericardial tissue by means of photo-initiated ultraviolet (U) crosslinking…

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News • t-MALDI-2

Dual-beam laser mass spectrometry gives unique insights

Cells are the basic building blocks of life – and, as such, they have been the object of intense study since the invention of the optical microscope in the 17th century. The development of mass spectrometry (MS) methods – those which define the chemical composition of cells – represented a further milestone for research in the field of cell biology. In the latest issue of the journal Nature…

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News • Watching the change

Predicting cancer risk with computational electrodynamics

Researchers from Northwestern University are using Argonne supercomputers to advance the development of an optical microscopy technique that can predict and quantify cancer risks at extremely early stages. The basic principle driving Allen Taflove’s computational electrodynamics research — which bears the potential to transform how we diagnose, and possibly treat, various forms of cancer —…

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News • Dose reduction

Increasing precision for radiotherapy

A new way of concentrating radiotherapy dose in tumours, while minimising damage to healthy cells, has been proposed in research led by scientists at the University of Strathclyde. The study proposes that focusing high-energy particle beams on a small spot deep inside the body could potentially enable clinicians to target cancerous tumours precisely, while reducing the dose to surrounding tissue.…

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News • Quality Assurance

A unique environment for cancer patient QA in proton therapy

IBA (Ion Beam Applications S.A.) announces the launch of myQA iON at the 2019 PTCOG conference. myQA iON significantly reduces the time needed for patient QA: The use of PT machine log files, process automation, task-based workflows, and the latest web technologies significantly increase QA efficiency while ensuring patient treatment safety. Compared to conventional detector measurements (at…

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News • Ten-year trial results

Radiotherapy reduces recurrence of early, hormone-driven breast cancer

Women with early, low risk, hormone-driven breast cancer are less likely to have a recurrence of their disease if they have radiotherapy after surgery, as well as anti-hormone treatment, according to results from a trial that has followed 869 women for ten years. New findings from the 8 A trial of the Austrian Breast and Colorectal Cancer Study Group (ABCSG), presented at the ESTRO 38 conference,…

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News • Contraception

Male birth control: as easy as a layered cocktail?

For decades, women have shouldered most of the burden of contraception. However, long-term use of female birth control pills could increase the risk for side effects such as blood clots or breast cancer. Now, inspired by colorful layered cocktails, researchers have developed a medium-term, reversible male contraceptive. They report their results in the journal ACS Nano. Common forms of male…

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Article • New Italian study results

Pre-operative MRI endorsed for breast cancer

MRI offers unequalled sensitivity and specificity in breast cancer detection. Yet, it is poorly accepted preoperatively. Recently, eminent radiologist Francesco Sardanelli, professor for radiology at Milan University and Chief of Radiology at the IRCCS Policlinico San Donato in Italy, unveiled preliminary results that could further MRI acceptance among multidisciplinary teams.

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News • DNA repair

Proteins: Sentinels of the Genome

Throughout life, DNA is constantly being damaged by environmental and intrinsic factors and must be promptly repaired to prevent mutations, genomic instability, and cancer. Different types of damages are repaired by numerous proteins organized into damage-specific pathways. The proteins from different pathways must be spatially and temporally coordinated in order to efficiently repair complex DNA…

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Sponsored • World-class technologies

New cutting-edge products and clinical applications

“With Your Stories – lifetime healthcare support” is the ­future-driven approach combining the best of two worlds by using our insight and expertise in medical imaging systems and laboratory instrumentation to benefit patients through even better prevention, diagnosis, treatment and follow-up and thus help them in the pursuit of a healthy life.

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News • Delivery options

Radiosurgery vs. whole-brain radiation in lung cancer patients with multiple brain metastases

Although targeted therapies have produced dramatic advances in our ability to control some types of advanced lung cancer, growth of the disease in the brain remains a major problem. Radiation is often used to treat deposits in the brain, but the best technique to deliver radiation can be controversial. Whole-brain radiation therapy, as its name suggest, treats the entire brain but can be…

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Article • CyberKnife technology training

Stereotactic radiotherapy spreads

In Rennes, France, more than 850 patients have already been treated with a top accelerator equipped with a multileaf collimator, the first of its kind in the country. Brittany’s capital Rennes is leading stereotactic radiotherapy practice as Eugène Marquis Cancer Centre gears up to welcome worldwide technicians to train on the latest CyberKnife system, Accuray’s powerful robotic radiosurgery…

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News • Ventricular tachycardia

Deadly heart rhythm halted by noninvasive radiation therapy

Radiation therapy often is used to treat cancer patients. Now, doctors at Washington University School of Medicine in St. Louis have shown that radiation therapy — aimed directly at the heart — can be used to treat patients with a life-threatening heart rhythm. They treated five patients who had irregular heart rhythms, called ventricular tachycardia, at the School of Medicine. The patients…

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Article • Beyond palliative care

Perspectives of SIRT – who benefits and why?

Selective internal radiotherapy (SIRT) is often only looked at from a palliative perspective. However, the procedure is now also increasingly moving into the curative field, as Prof. Dr. Jens Ricke, Chair of Radiology at the Ludwig-Maximilian University Munich and Director of the Clinic and Polyclinic for Radiology at the University Hospital of the LMU reports. “As a locoregionally used…

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News • Combination approach

Radiation treatment extends life expectancy for patients with inoperable lung cancer

Patients with unresectable, or inoperable, lung cancer are often given a dismal prognosis, with low rates of survival beyond a few years. Researchers exploring combination therapies have recently discovered improved survival rates by up to one year when patients treated with a newly formulated chemotherapy regimen are also given radiation therapy.

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Article • Skin protection

Self-improving DNA sun screen developed

Researchers at Binghamton University, State University of New York have developed a coating made out of DNA that gets better at protecting skin from Ultraviolet light the more it is exposed to the sun and which could potentially be used as wound covering for extreme environments.

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Surgery for early prostate cancer often harmful

A major 20-year study provides further evidence that prostate cancer surgery offers negligible benefits to many men with early-stage disease. In such men, who account for most cases of newly diagnosed prostate cancer, surgery did not prolong life and often caused serious complications such as infection, urinary incontinence and erectile dysfunction.

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News • low radiation

High resolution detectors to create safer X-ray diagnosis

A European health consortium is developing a set of low radiation, low cost, flat panel X-ray detectors that use novel photonics technology to make diagnosis safer for patients, hospital and dental staff, generating some of the highest resolution images ever seen in rapid moving body functions, such as malicious growths or the beating heart of a baby.

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News • Cleaning hospital rooms

UV rays cuts superbug transmission

In a hospital, what you can’t see could hurt you. Healthcare facilities continue to battle drug-resistant organisms such as methicillin-resistant Staphylococcus aureus (MRSA) that loiter on surfaces even after patient rooms have been cleaned and can cause new, sometimes-deadly infections.

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Hypofractionation

Making prostate cancer therapy more effective, more comfortable for patients and less expensive for society? Dose escalation, up to 80 Gy and above, may be necessary to successfully treat localised prostate cancer with radiotherapy (RT).

COMPAMED 2011 - Trend Report

Modern medical technology is evidently held in high esteem by the general population. In a recent survey conducted by the market research institute Emnid commissioned by the industry association SPECTARIS, about 80% of the patients surveyed said that under certain circumstances they would be willing to pay more for their health insurance in return for consistent treatment with state-of-the-art…

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Proton therapy

As one of the most advanced forms of precision radiotherapy, proton therapy enables the irradiation of tumours located deep within the body, in the proximity of critical organs, such as the optic nerve or some brain areas. The Institut Curie has renovated its proton therapy centre in Orsay near Paris. Since 1991, when the original centre opened, it has treated over 5,000 patients (4,000 for eye…

Ultraviolet light - an invisible weapon against MRSA

A few years ago, Dr Peder Bo Nielsen MD FRCPath, Consultant medical microbiologist at Northwick Park Hospital, London, UK, launched a research programme on airborne transmission of nosocomial infections. Until then, so called air-biology held no high priority in infection prevention and control. The prevailing perception was that colonisation and contamination mainly happens due to direct contact…

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Tumors under fire

Oncologists have a dream: they want to use highly energetic ion beams in good quality and accurately defined dose for a pin-sharp and cost-effective radiation treatment of tumors. Modern techniques based on intense laser pulses may in the future replace expensive conventional particle accelerators. A team of physicists of the Cluster of Excellence "Munich-Centre for Advanced Photonics" (MAP) lead…

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Hepatocellular carcinoma

Cases of hepatocellular carcinoma (HCC), one of the most frequently occurring cancers throughout the world, are expected to increase dramatically in the next 10-15 years in Germany alone. The main reason is the increased occurrence of fatty hepatitis. Thus, in the future, interventional radiologists will also be increasingly involved in HCC patients treatment.

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Lighting for health and healing

Hardly any other area demands such complex lighting solutions as healthcare and nursing, given that it is essential to create optimal conditions to fulfil an extremely wide range of requirements.

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MR-guided radiotherapy

Real-time image guidance during radiation therapy could prove the ultimate means to ramp tumour targeting accuracy and enable real-time tracking of moving targets. MR imaging enables precise soft-tissue visualization with no additional ionizing radiation exposure. Unfortunately, MR systems and linear accelerators are inherently incompatible and some innovative design work is required for them to…

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A new imaging tool?

Mammography is the common way to detect breast cancer. But it's not perfect: it struggles to image dense glandular tissue or early-stage tumours. Magnetic resonance imaging (MRI) offers best sensivity but it is expensiv and not always specific enough. Now researchers have come up with another option: a scanner that integrates thermoacoustic and photoacoustic tomography to achieve dual-contrast…

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The EOS digital x-ray unit

Traditionally, radiography systems have an X-ray tube at one end, film-screen cassette or detector at the other, a table between, and perhaps a mounted assembly on a U-arm or chest stand.

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CTLM Seeing through the dense breast

Optical imaging stands on the threshold of a vast array of imaging uses, writes Professor Eric N C Milne MD FRCR FRCP, Professor Emeritus of Radiology and Medicine, University of California Irvine, and Director of Clinical Research, Imaging Diagnostic Systems Inc. `Presently, its greatest worth lies in higher sensitivity for the dense breast. It detects many more occult cancers than conventional…

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