![]() Depending on the design of the lens and the ultrasound parameters, the target can be as small as 1x1.5mm or as large as 10x16mm in diameter. With focused ultrasound, an acoustic lens is used to concentrate multiple intersecting beams of ultrasound on a target deep in the body with extreme precision and accuracy. Watch this video on our new approach to treat essential tremor using MRgFUS. Magnetic resonance or ultrasound imaging-which is used to identify and target the tissue to be treated, guide and control the treatment in real time, and confirm the effectiveness of the treatment.Focused ultrasound-which provides the energy to treat tissue deep in the body precisely and noninvasively. ![]() Shah in two days.Focused ultrasound is an early-stage, non-invasive and incision-free therapeutic technology with the potential to transform the treatment of many medical disorders, by using ultrasonic energy to target tissue deep in the body without incisions or radiation.įocused ultrasound is the pairing of two innovative technologies: After recovery, the patient is discharged from the hospital with instructions to follow up with Dr. When this is finished, the procedure is complete, and the head frame is removed.Ī follow-up MRI exam is performed, and then the patient is taken to a recovery area for two hours. Once the target is confirmed, higher-energy ultrasound waves are delivered. The patient spends 45-60 minutes in the MRI scanner for the treatment and is evaluated after each ultrasound therapy has been delivered to ensure that the tremor is improving and side effects are not occurring. Antinausea medicine is given prior to the procedure to help alleviate these feelings. The patient is then placed in the MRI scanner for treatment.ĭuring the treatment, the patient may experience nausea or have a falling sensation. A plastic frame is attached to the patient’s head to prevent motion during the procedure. After a brief neurologic exam, the patient is taken to the Neuro MRgHIFU suite in Clements University Hospital. Shah and a movement disorders neurologist meet the patient. If transcranial MR-guided focused ultrasound is recommended, patients then meet with neuroradiologist Bhavya R. We recommend the best option for the patient, considering the risks and benefits of each approach and the patient’s preference. After the testing, we hold a multidisciplinary conference with neurologists, neurosurgeons, neuroradiologists, neuropsychologists, and physical therapists to review each patient’s case. The network organizes a series of tests, including measurement of tremor severity using validated scales and videotape analysis, cognitive testing, and other tests as needed. Patients who are possible candidates for either deep brain stimulation surgery or transcranial MR-guided focused ultrasound are enrolled in UTSW’s neuromodulation network. We then review all options for bringing the tremor under control, including pharmacological therapy, brain surgical treatments, and transcranial MR-guided focused ultrasound. There are many potential causes of tremor, so the first step is accurate diagnosis. The evaluation includes a complete medical history and physical. Patients with tremor who are interested in this approach are evaluated by a neurologist specializing in movement disorders.
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