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MRI Homepage

Dr. Linda Pauliks Miller Children's & Women's Hospital Long Beach name medical director of pediatric & congenital cardiac imaging

Study finds MR detects 98 percent of pregnancy-related breast cancers May also inform surgical management of disease

Radiology Partners to acquire Southwest Diagnostic Imaging Joining with SDI 'represents about a 25 percent increase' in RP's size

Michigan appeals court case could test lay-ownership of MR facility laws Must imaging facilities be owned by doctors?

PET/MR scans can assess pediatric cancer survivor health Study targets chemotherapy after-effects in young patients

New guidelines advise against the use of brain imaging to diagnose chronic pain Researchers continue to look for brain-based biomarkers

FDA approves sale of SyMRI IMAGE software for GE Healthcare MR scanners Reduces scan times

FDA panel: Add retention warning to gadolinium contrast agents MIDAC also votes to increase studies conducted by contrast manufacturers

Study finds MR can measure kidney scarring and predict future kidney function Could also test new anti-scarring treatments

Resilience Capital Partners acquires three medical device service and manufacturing companies Forms Innovatus Imaging Corporation

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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