scholarly journals Treating patients with movement disorders using MRI-guided focused ultrasound: recent developments and challenges

Author(s):  
Travis Tierney ◽  
Wesley Field ◽  
Tharakeswari Selvakumar ◽  
Michael Hayes
2021 ◽  
Vol 12 ◽  
Author(s):  
Nabid Ahmed ◽  
Dheeraj Gandhi ◽  
Elias R. Melhem ◽  
Victor Frenkel

Stem cell and immune cell therapies are being investigated as a potential therapeutic modality for CNS disorders, performing functions such as targeted drug or growth factor delivery, tumor cell destruction, or inflammatory regulation. Despite promising preclinical studies, delivery routes for maximizing cell engraftment, such as stereotactic or intrathecal injection, are invasive and carry risks of hemorrhage and infection. Recent developments in MRI-guided focused ultrasound (MRgFUS) technology have significant implications for treating focal CNS pathologies including neurodegenerative, vascular and malignant processes. MRgFUS is currently employed in the clinic for treating essential tremor and Parkinson's Disease by producing precise, incisionless, transcranial lesions. This non-invasive technology can also be modified for non-destructive applications to safely and transiently open the blood-brain barrier (BBB) to deliver a range of therapeutics, including cells. This review is meant to familiarize the neuro-interventionalist with this topic and discusses the use of MRgFUS for facilitating cellular delivery to the brain. A detailed and comprehensive description is provided on routes of cell administration, imaging strategies for targeting and tracking cellular delivery and engraftment, biophysical mechanisms of BBB enhanced permeability, supportive proof-of-concept studies, and potential for clinical translation.


2017 ◽  
Vol 381 ◽  
pp. 124-125
Author(s):  
I. Schlesinger ◽  
A. Sinai ◽  
M. Nassar ◽  
A. Eran ◽  
M. Zaaroor

2021 ◽  
Author(s):  
Allison Payne ◽  
Rajiv Chopra ◽  
Nicholas Ellens ◽  
Lili Chen ◽  
Pejman Ghanouni ◽  
...  

1998 ◽  
Vol 8 (1) ◽  
pp. 101-104 ◽  
Author(s):  
David P. Madio ◽  
Peter van Gelderen ◽  
Daryl DesPres ◽  
Alan W. Olson ◽  
Jacco A. de Zwart ◽  
...  

2016 ◽  
Vol 32 (7) ◽  
pp. 786-794 ◽  
Author(s):  
Elena A. Kaye ◽  
Sebastien Monette ◽  
Govindarajan Srimathveeravalli ◽  
Majid Maybody ◽  
Stephen B. Solomon ◽  
...  

2018 ◽  
Vol 63 (6) ◽  
pp. 065008 ◽  
Author(s):  
Calum Crake ◽  
Spencer T Brinker ◽  
Christian M Coviello ◽  
Margaret S Livingstone ◽  
Nathan J McDannold

2019 ◽  
Vol 131 (2) ◽  
pp. 384-386 ◽  
Author(s):  
Shiro Horisawa ◽  
Toshio Yamaguchi ◽  
Keiichi Abe ◽  
Hiroki Hori ◽  
Masatake Sumi ◽  
...  

Musician’s dystonia (MD) is a type of focal hand dystonia that develops only while playing musical instruments and interferes with skilled and fine movements. Lesioning of the ventro-oral (Vo) nucleus of the thalamus (Vo-thalamotomy) using radiofrequency can cause dramatic improvement in MD symptoms. Focused ultrasound (FUS) can make intracranial focal lesions without an incision. The authors used MRI-guided FUS (MRgFUS) to create a lesion on the Vo nucleus to treat a patient with MD. Tubiana’s MD scale (TMDS) was used to evaluate the condition of musical play ranging from 1 to 5 (1: worst, 5: best). The patient was a 35-year-old right-handed man with involuntary flexion of the right second, third, and fourth fingers, which occurred while playing a classical guitar. Immediately after therapeutic sonications of FUS Vo-thalamotomy, there was dramatic improvement in the MD symptoms. The TMDS scores before; at 0 and 1 week after; and at 1, 3, 6, and 12 months after MRgFUS Vo-thalamotomy were 1, 4, 4, 5, 5, 5, and 5, respectively. No complications were observed. Focused ultrasound Vo-thalamotomy can be an effective treatment for MD.


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