Pitt grad student 3D prints a realistic phantom head for MR research

3ders.org | 9/28/2018 | Staff
liizu (Posted by) Level 3
Click For Photo: https://www.3ders.org/images2018/pitt-grad-student-3d-prints-a-realistic-phantom-head-for-mr-research-1.jpg

Phantoms are numerical and physical models that represent the characteristics of some specified human anatomy. A physical phantom can be used to test various medical diagnostic imaging tools and wireless communication applications. Sossena Wood, a bioengineering PhD candidate at the University of Pittsburgh, has developed a 3D printed realistic phantom head for magnetic resonance research in the Swanson School of Engineering.

While electromagnetic numerical modeling has been the common resource to understand and analyze the interaction of electromagnetic fields and biological tissues, in the last few years, experimental phantoms are increasingly becoming a useful resource.

RF - Research - Facility - Whole-body - Tesla

"In the RF Research Facility, we use a whole-body 7 Tesla magnetic resonance imager (7T MRI), which is one of the strongest clinical human MRI devices in the world," said Tamer Ibrahim, Associate Professor and Director of the University of Pittsburgh's Radiofrequency (RF) Research Facility. 7T ultrahigh field technology is a powerful tool, but unfortunately, there are a few setbacks that come with this type of imaging.

"As you move from lower to higher fields, the images produced become less uniform and localized heating becomes more prevalent," explained Ibrahim. He envisioned designing a 3D printed phantom head to use with the uniquely designed ultrahigh field technology in his lab.

Phantom - Head - Issues - Way - Imaging

"We wanted to develop an anthropomorphic phantom head to help us better understand these issues by providing a safer way to test the imaging. We use the device to analyze, evaluate, and calibrate the MRI systems and instrumentation before testing new protocols on human subjects."

Researchers are currently using numerical simulations to study the effect of electromagnetic (EM) fields on biological tissues at varying frequencies. Wood said, "EM numerical modeling has been a standard when analyzing these interactions, and we wanted to create a phantom that resembled the human form for use in validating the EM modeling, thereby providing a more...
(Excerpt) Read more at: 3ders.org
Wake Up To Breaking News!
Sign In or Register to comment.

Welcome to Long Room!

Where The World Finds Its News!