Now a research team — led by Tohoku University Professor, Wataru Yashiro — has developed a new method using intense synchrotron radiation that produces higher quality images within milliseconds.

How the bent crystal changes the direction of the X-rays. Image courtesy of Tohoku University


May 15, 2020 — Many will undergo a computed tomography (CT) scan at some point in their lifetime — being slid in and out of a tunnel as a large machine rotates around. X-ray computed tomography, better known by its acronym CT, is a widely used method of obtaining cross-sectional images of objects.

Now a research team — led by Tohoku University Professor, Wataru Yashiro — has developed a new method using intense synchrotron radiation that produces higher quality images within milliseconds.

High-speed, high-resolution X-ray CT is currently possible using intense synchrotron radiation. However, this requires samples to be rotated at high speed to obtain images from many directions. This would make CT scans more akin to a rollercoaster ride!

Extreme rotation also makes controlling the temperature or atmosphere of the sample impossible.

Nevertheless, the research team solved this conundrum by creating an optical system that splits single synchrotron X-ray beams into many. These beams then shine onto the sample from different directions at the same time; thus, negating the need to rotate the sample.

This "multi-beam" method is no easy task since the direction of X-rays cannot be easily changed. Unlike visible light, X-rays interact with matters weakly, making it difficult to utilize mirrors and prisms to change the path of the beams.

To overcome this, the research team used micro-fabrication techniques to create uniquely shaped crystals. These crystals were then bent in the shape of a hyperbola. By combining three rows of crystals, the multi-beam optics were able to cover an angle of ±70°.

Carrying out their experiments at the SPring-8 synchrotron radiation facility, the research team took advantage of a cutting-edge compressed-sensing algorithm that needs only a few dozen projection images for image reconstruction.

"The invention makes 3-D observations of living beings and liquid samples within milliseconds possible" exclaimed Yashiro. "It is possible application is wide-spread, from fundamental material science to life sciences to industry."

For more information: www.tohoku.ac.jp/en/

Related Content

News | Magnetic Resonance Imaging (MRI)

November 24, 2021 — Royal Philips announced new AI-enabled innovations in MR imaging launching at the Radiological ...

Time November 24, 2021
arrow
News | Coronavirus (COVID-19)

November 24, 2021 — Significant decreases in CT imaging for cancer persisted even after the peak of the COVID-19 ...

Time November 24, 2021
arrow
News | Lung Imaging

November 23, 2021 — Median Technologies announces new outstanding performance of its lung cancer screening (LCS) CADx1 ...

Time November 23, 2021
arrow
News | Artificial Intelligence

November 23, 2021 — The results of a unique two-tiered brain tumor AI challenge were announced today by the Radiological ...

Time November 23, 2021
arrow
News | Radiology Business

November 23, 2021 — Guerbet LLC, the U.S. affiliate of Guerbet, a global leader in medical imaging, is pleased to be ...

Time November 23, 2021
arrow
News | Magnetic Resonance Imaging (MRI)

November 23, 2021 — Researchers at Yale University analyzing specialized MRI exams found significant changes in the ...

Time November 23, 2021
arrow
News | Interventional Radiology

November 23, 2021 — A minimally invasive ablation procedure offers long-term relief for patients who experience chronic ...

Time November 23, 2021
arrow
News | Radiology Imaging

November 22, 2021 — Guerbet LLC, the U.S. affiliate of Guerbet, a global leader in medical imaging, was awarded a ...

Time November 22, 2021
arrow
News | RSNA

November 22, 2021 — The Radiological Society of North America (RSNA) announced that more than 19,000 attendees are ...

Time November 22, 2021
arrow
News | Magnetic Resonance Imaging (MRI)

November 22, 2021 — Adolescents and young adults with post-concussive symptoms who suffered three to five concussions ...

Time November 22, 2021
arrow
Subscribe Now