In a joint project with the STW Technology Foundation, medical information technologists from Leiden have developed a virtual robot which meticulously scans the heart muscle using images of the heart. The contours detector reduces the work of specialists and does not affect the patients. The research group will present the results in the middle of May at a congress in Honolulu.
To map the condition of a patient’s heart, physicians have until now used a series of MRI images (magnetic resonance imaging). The images provide 10 cross-sections of the heart on 20 phases during a single heartbeat. Then on at least 40 of the 200 images the physician marks the contours of the heart muscle by hand. This very accurately but subjectively reveals where the heart muscle is less thick during the heartbeat. These parts of the heart wall have already died or receive less oxygen upon exertion. If the physician requires more information, he marks all 200 images.
In the newly-developed contours detector, a virtual robot delineates the heart boundaries on the MRI images. The contours indicate where the heart wall lies and therefore the thickness of the heart muscle at any given point. The robot is objective and self-learning. When the image has too little contrast for a boundary line to be drawn with certainty, the robot ’remembers’ an example from a previous `training`. Together with the rules dictated by the programmers, the intelligent system then constructs a ‘surgically precise’ contour. This makes the time-consuming drawing of the contours by hand obsolete. Patients are not even aware of the robot, as the entire process takes place in the computer using stored MRI images.
Michel Philippens | alphagalileo
Finnish research group discovers a new immune system regulator
23.02.2018 | University of Turku
Minimising risks of transplants
22.02.2018 | Friedrich-Alexander-Universität Erlangen-Nürnberg
A newly developed laser technology has enabled physicists in the Laboratory for Attosecond Physics (jointly run by LMU Munich and the Max Planck Institute of Quantum Optics) to generate attosecond bursts of high-energy photons of unprecedented intensity. This has made it possible to observe the interaction of multiple photons in a single such pulse with electrons in the inner orbital shell of an atom.
In order to observe the ultrafast electron motion in the inner shells of atoms with short light pulses, the pulses must not only be ultrashort, but very...
A group of researchers led by Andrea Cavalleri at the Max Planck Institute for Structure and Dynamics of Matter (MPSD) in Hamburg has demonstrated a new method enabling precise measurements of the interatomic forces that hold crystalline solids together. The paper Probing the Interatomic Potential of Solids by Strong-Field Nonlinear Phononics, published online in Nature, explains how a terahertz-frequency laser pulse can drive very large deformations of the crystal.
By measuring the highly unusual atomic trajectories under extreme electromagnetic transients, the MPSD group could reconstruct how rigid the atomic bonds are...
Quantum computers may one day solve algorithmic problems which even the biggest supercomputers today can’t manage. But how do you test a quantum computer to...
For the first time, a team of researchers at the Max-Planck Institute (MPI) for Polymer Research in Mainz, Germany, has succeeded in making an integrated circuit (IC) from just a monolayer of a semiconducting polymer via a bottom-up, self-assembly approach.
In the self-assembly process, the semiconducting polymer arranges itself into an ordered monolayer in a transistor. The transistors are binary switches used...
Breakthrough provides a new concept of the design of molecular motors, sensors and electricity generators at nanoscale
Researchers from the Institute of Organic Chemistry and Biochemistry of the CAS (IOCB Prague), Institute of Physics of the CAS (IP CAS) and Palacký University...
15.02.2018 | Event News
13.02.2018 | Event News
12.02.2018 | Event News
23.02.2018 | Physics and Astronomy
23.02.2018 | Health and Medicine
23.02.2018 | Physics and Astronomy