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MRI Homepage

New study highlights gender disparity in radiology Fewer female radiologists are publishing research

World's first 10.5-Tesla human MR scan performed at University of Minnesota A 110-ton magnet with a world of potential

New brain MR technique improves brain imaging for restless children Fewer motion and pulsation artifacts

Availity announces debut of pre-clearance service at HIMSS Confirms imaging authorization in minutes and ensures patient payments prior to visit

Lisa Hazen ARRT appoints new Nuclear Medicine Technology (NMT) Relationship Manager

Radiology firm sues MR service provider for more than $68,000 in unpaid services Alleges breach of contract for failure to pay for services rendered

Elekta partners with Memorial Sloan Kettering for cancer research on MR-linac Will test MR-linac in treating tumors in nine parts of the body

New 3T MR from Philips cuts scan time in half Ingenia Elition 3T was unveiled at ECR and uses AI to enhance workflow

Radiologists configure MR to find bone and brain metastases in 7 minutes Increases efficiency by roughly 30 percent

Study of the 2016 Summer Olympic Games sheds light on imaging utilization rates May help plan imaging services for future events

Prototype for animal testing in the works

Researchers are developing an army of tiny MR-powered robots to deliver cancer drugs

by Lauren Dubinsky , Senior Reporter
Imagine tiny robots, called microsurgeons, that physicians can steer through blood vessels to deliver cancer drugs. Researchers at the University of Houston and Houston Methodist Hospital are working on making that a reality.

The team is developing imaging technology, control algorithms, ultrafast computational methods and human-machine immersion methods to harness the power of an MR scanner. MR will be used to both provide imaging and steer the .5- to-2-millimeter-robots through the body.

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Even the fastest MR systems on the market are too slow for this procedure and have a time lag before the information is available. Real-time control is required, since blood vessels move around the body and surgeons need to see the anatomy as well as the robot to ensure it’s moving correctly.

MR imaging generates enough magnetic force to move the robots through the body’s venous system, but it can’t penetrate tumors or other tissues. To address that, the team is working on two designs — one based on the principle of mechanical resonance and the modeled after a self-assembling surgical tool.

The University of Houston received a $608,000 Synergy Award from the National Science Foundation to develop a prototype suitable for animal testing. The grant is awarded through NSF’s Cyber-Physical Systems program.

The research team’s goal is to use the power of MR to target delivery with dozens of robots throughout the body.

Even though a single robot is capable of targeting a lesion to deliver chemotherapy or another treatment, the researchers caution that this isn’t practical for late-stage cancer.

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