Logo of the Physikalisch-Technische Bundesanstalt

Latest scientific news

Physiological parameter estimation by MRI is affected by intrinsic ambiguity in the data such as noise or model inaccuracies. Edengenet Dejene (PTB 8.14), together with Winfried Brenner (Charité), Marcus R. Makowski (TU München), and Christoph Kolbitsch (PTB 8.14), now developed a method for the uncertainty quantification of physiological parameters in dynamic contrast enhanced MRI of the liver....

[ more ]

Virtual experiments and digital twins are simulation models that accurately replicate physical systems in a virtual environment. These simulations can then be used to quickly and cost-effectively determine how production processes or machines can be optimized or where signs of wear will occur and when. The new European research project Trustworthy Virtual Experiments and Digital Twins (Opens external link in new windowViDiT) will...

[ more ]
Gruppenfoto WELMEC WG7

Die europäische Kommission hat die Evaluation der Messgeräterichtline (MID) und der NAWID (2014/31/EU und 2014/32/EU) eingeleitet. Im Rahmen dieser Evaluation konsultiert die Kommission mit Hilfe des externen Konsortiums unter der Leitung des Centre for Strategy & Evaluation Services (CSES) alle Interessengruppen.

Während des Bewertungsprozesses wurden vier Bereiche identifiziert, die ein rasches...

[ more ]

Jana Zhang was awarded the "Schnieder-Preis JUNGE MACHERIN" by acatech — Deutsche Akademie der Technikwissenschaften for her Master's thesis "Respiratory Motion-Corrected T1 Mapping of the Abdomen". This prize was awarded to Ms Zhang for her outstanding scientific achievements and also for her high level of social commitment. Ms Zhang studied at the TU Berlin and her work was supervised by Dr...

[ more ]

The head of working group 8.51 Metrological Software was honored by the OIML with a Letter of Appreciation at the 58th CIML meeting in Thailand. The OIML thereby recognized his outstanding efforts and achievements as responsible secretary of OIML TC 5/SC 2 and convener of OIML TC 5/SC 2/p 4 'Revision of OIML D 31: General requirements for software-controlled measuring instruments', an important...

[ more ]

Statements of conformity are widespread to ensure that a measuring instrument conforms, e.g., to tolerance intervals. When linearly combining quantities, however, that are each measured with a conforming instrument according to ISO 17025, existing guidance to arrive at a conformity statement is often inapplicable or requires disproportionate efforts. Recent research identifies typical settings...

[ more ]

Fluorophores are substances that fluoresce, i.e., that emit light after prior excitation. Micro- and nanoparticles loaded with fluorophores are widely used in materials and life sciences, e.g., in fluorescence microscopy or flow cytometry. For a comparability of the measured fluorescence intensities between different instruments or laboratories, which usually provide only relative values, a...

[ more ]

Open-source low-field MRI offers completely new opportunity for health care. More than 30 international experts met in Berlin to kick-off a 3-year project to build, characterize and evaluate three open-source low-field MR scanners. The project will cover hardware and software development, physics-informed deep-learning image reconstruction and uncertainty assessment and MDR-ready documentation —...

[ more ]

Natalie Schön was awarded with the third place of the Gorter Award at this year's annual meeting of the German chapter of the ISMRM. The Gorter Award honours the currently best publications of young scientists in the field of magnetic resonance imaging in medicine or natural science.

Natalie Schön presented the publication of the topic "Respiration resolved body models in electromagnetic...

[ more ]

Proof of SARS-CoV-2 infection is based on detection of genetic markers - e.g. using PCR. The infection can also be proved by detection of characteristic proteins. Antigen tests make use of this approach. We tested the correlation between genetic markers and proteins of SARS-CoV-2. Two quantitative methods were used. The gene concentration was measured using digital PCR. This method provides most...

[ more ]