A high-tech treatment has been shown to improve and even eliminate tremors in some Parkinson's patients.

Dr. Zion Zibly, of Greenwich Hospital, is involved in clinical studies on the procedure, which uses a high-intensity focused ultrasound (HIFU).

Zibly says people who have tremors can become frustrated when performing daily tasks.

"[One patient said] I can't use my hands, I can't write. I can't use my computer, I can't go outside with my friends to have drinks, I can't eat alone," he says.

The first step in the process is for a patient to shave their head and wear a frame-like helmet with coils that transmit brain imaging signals. The patient then goes into an MRI machine, which scans their brain.

Once the patient is awake, Zibly and his team identify the exact spot in the brain that causes the tremors. That area is as a small as the tip of a pen, says Zibly.

"You can barely see it with your eyes, but you can see it through the MRI scan," he says.

Without making any incisions, doctors destroy those cells with HIFU.

"One thousand ultrasonic beams gather in one location and heat it up to about [131 degrees] . This heating of the brain at this location does thermo damage and this lesion stops the tremors," says Zibly.

Doctors can communicate with the patient during and right after the hourlong produce.

Zibly says 90 to 95% of potential patients would benefit from the procedure. Hospital staff told News 12 that one patient who experienced many years of shakiness is doing well and has a steady hand which has improved her ability to write and eat.

Insightec, the company that developed HIFU, says possible side effects include mild to moderate hand numbness and tingling, having issues with balance and unsteady gait.

Greenwich Hospital is among several medical centers in the tri-state area that offers the procedure.