A newly developed tissue scanner allows looking under the skin of psoriasis patients. This provides clinically relevant information, such as the structure of skin layers and blood vessels, without the need for contrast agents or radiation exposure. A team of researchers from Helmholtz Zentrum München and the Technical University of Munich (TUM) recently introduced the technology in ‘Nature Biomedical Engineering’.
Psoriasis (Psoriasis vulgaris) is an inflammatory skin disease that is characterized by small to palm-sized patches of severely scaling skin. The disease is estimated to affect between ten and fifteen million people in the European Union.
Currently, physicians evaluate the severity of the disease based on visual assessment of features of the skin surface, such as redness or thickness of the flaking skin. “Unfortunately, these standards miss all parameters that lie below the surface of the skin, and may be subjective,” Dr. Juan Aguirre points out. “Knowing the structure of the skin and vessels before treatment can provide the physician with useful information,” explains the group leader at the Institute of Biological and Medical Imaging (IBMI) at the Helmholtz Zentrum München.*
A look under the skin
In order to provide clinicians with this information, Aguirre and his team developed a new technique that gets under the skin. It bears the name RSOM** and works as follows: A weak laser pulse excites the tissue of interest, which then absorbs energy and heats up minimally. This causes momentary tissue expansion, which generates ultrasound waves. The scientists measure these ultrasound signals and use this information to reconstruct a high resolution image of what lies under the skin.
High tech that fits in the hand
While developing the method, the scientists were able to reduce the size of the scanner to a handheld device. “This technology, which is easy to use and does not involve any radiation exposure or contrast agent, is allowing us to acquire the first new insights into the disease mechanisms. It also facilitates treatment decisions for the physicians,” explains Prof. Dr. Vasilis Ntziachristos, Director of the IBMI at the Helmholtz Zentrum München and Chair of Biological Imaging at the Technical University of Munich.
In the recently published study, the scientists demonstrated RSOM’s performance by examining cutaneous and subcutaneous tissue from psoriasis patients. RSOM allowed them to determine several characteristics of psoriasis and inflammation, including skin thickness, capillary density, number of vessels, and total blood volume in the skin. They compiled these to define a novel clinical index*** for assessing psoriasis severity that may be superior to the current clinical standard because the new index also takes into account characteristics below the skin surface.
The researchers plan to use the same imaging method to assess other diseases such as skin cancer or diabetes in the future. Patients with diabetes often suffer from damaged blood vessels that, if detected early enough, may allow earlier treatment and therefore greater efficacy.
*Psoriasis treatment depends on the severity of the disease and possible organ involvement, which the new technique can help assess in a non-invasive way, obtaining information that before could only be retrieved with painful, invasive biopsy.
**RSOM stands for raster-scan optoacoustic mesoscopy.
*** In medicine, an index is a value that includes several diagnostic parameters allowing to estimate the severity of a disease.
Aguirre, J. et al. (2017): Precision assessment of label-free psoriasis biomarkers with ultra-broadband optoacoustic mesoscopy. Nature Biomedical Engineering, DOI: 10.1038/s41551-017-0068
The Helmholtz Zentrum München, the German Research Center for Environmental Health, pursues the goal of developing personalized medical approaches for the prevention and therapy of major common diseases such as diabetes and lung diseases. To achieve this, it investigates the interaction of genetics, environmental factors and lifestyle. The Helmholtz Zentrum München is headquartered in Neuherberg in the north of Munich and has about 2,300 staff members. It is a member of the Helmholtz Association, a community of 18 scientific-technical and medical-biological research centers with a total of about 37,000 staff members. http://www.helmholtz-muenchen.de/en
The Institute for Biological and Medical Imaging (IBMI) conducts research into in vivo imaging technologies for the biosciences. It develops systems, theories and methods of imaging and image reconstruction as well as animal models to test new technologies at the biological, preclinical and clinical level. The aim is to provide innovative tools for biomedical laboratories, for diagnosis and for the therapeutic monitoring of human diseases. http://www.helmholtz-muenchen.de/ibmi
The Center of Allergy & Environment (ZAUM) in Munich is a joint undertaking by the Helmholtz Zentrum München and the Technical University of Munich (TUM). This cooperation, which is the only one of its kind in the German research landscape, is dedicated to interdisciplinary basic research and forms a link between clinicians at the hospital and clinical research staff at the university. Thanks to this approach, findings about the mechanisms that lie behind allergies are translated into preventive and therapeutic measures. The development of effective, individually tailored treatments enables better care to be provided for allergy-sufferers. http://www.zaum-online.de
Technical University of Munich (TUM) is one of Europe’s leading research universities, with more than 500 professors, around 10,000 academic and non-academic staff, and 39,000 students. Its focus areas are the engineering sciences, natural sciences, life sciences and medicine, reinforced by schools of management and education. TUM acts as an entrepreneurial university that promotes talents and creates value for society. In that it profits from having strong partners in science and industry. It is represented worldwide with a campus in Singapore as well as offices in Beijing, Brussels, Cairo, Mumbai, San Francisco, and São Paulo. Nobel Prize winners and inventors such as Rudolf Diesel, Carl von Linde, and Rudolf Mößbauer have done research at TUM. In 2006 and 2012 it won recognition as a German "Excellence University." In international rankings, TUM regularly places among the best universities in Germany. http://www.tum.de/en/homepage
Contact for the media:
Department of Communication, Helmholtz Zentrum München - German Research Center for Environmental Health, Ingolstädter Landstr. 1, 85764 Neuherberg - Tel. +49 89 3187 2238 - Fax: +49 89 3187 3324 - E-mail: firstname.lastname@example.org
Scientific Contact at Helmholtz Zentrum München:
Dr. Juan Aguirre, Helmholtz Zentrum München - German Research Center for Environmental Health, Institute of Biological and Medical Imaging, Ingolstädter Landstr. 1, 85764 Neuherberg - Tel. +49 89 3187 3972, E-mail: email@example.com
Sonja Opitz | Helmholtz Zentrum München - Deutsches Forschungszentrum für Gesundheit und Umwelt
Münster researchers make a fly’s heartbeat visible / Software automatically recognizes pulse
12.03.2018 | Westfälische Wilhelms-Universität Münster
3-D-written model to provide better understanding of cancer spread
05.03.2018 | Purdue University
Satellites in near-Earth orbit are at risk due to the steady increase in space debris. But their mission in the areas of telecommunications, navigation or weather forecasts is essential for society. Fraunhofer FHR therefore develops radar-based systems which allow the detection, tracking and cataloging of even the smallest particles of debris. Satellite operators who have access to our data are in a better position to plan evasive maneuvers and prevent destructive collisions. From April, 25-29 2018, Fraunhofer FHR and its partners will exhibit the complementary radar systems TIRA and GESTRA as well as the latest radar techniques for space observation across three stands at the ILA Berlin.
The "traffic situation" in space is very tense: the Earth is currently being orbited not only by countless satellites but also by a large volume of space...
An international team of researchers has discovered a new anti-cancer protein. The protein, called LHPP, prevents the uncontrolled proliferation of cancer cells in the liver. The researchers led by Prof. Michael N. Hall from the Biozentrum, University of Basel, report in “Nature” that LHPP can also serve as a biomarker for the diagnosis and prognosis of liver cancer.
The incidence of liver cancer, also known as hepatocellular carcinoma, is steadily increasing. In the last twenty years, the number of cases has almost doubled...
In just a few weeks from now, the Chinese space station Tiangong-1 will re-enter the Earth's atmosphere where it will to a large extent burn up. It is possible that some debris will reach the Earth's surface. Tiangong-1 is orbiting the Earth uncontrolled at a speed of approx. 29,000 km/h.Currently the prognosis relating to the time of impact currently lies within a window of several days. The scientists at Fraunhofer FHR have already been monitoring Tiangong-1 for a number of weeks with their TIRA system, one of the most powerful space observation radars in the world, with a view to supporting the German Space Situational Awareness Center and the ESA with their re-entry forecasts.
Following the loss of radio contact with Tiangong-1 in 2016 and due to the low orbital height, it is now inevitable that the Chinese space station will...
Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP, provider of research and development services for OLED lighting solutions, announces the founding of the “OLED Licht Forum” and presents latest OLED design and lighting solutions during light+building, from March 18th – 23rd, 2018 in Frankfurt a.M./Germany, at booth no. F91 in Hall 4.0.
They are united in their passion for OLED (organic light emitting diodes) lighting with all of its unique facets and application possibilities. Thus experts in...
A new scenario seeking to explain how Mars' putative oceans came and went over the last 4 billion years implies that the oceans formed several hundred million...
23.03.2018 | Event News
19.03.2018 | Event News
16.03.2018 | Event News
23.03.2018 | Materials Sciences
23.03.2018 | Agricultural and Forestry Science
23.03.2018 | Physics and Astronomy