Cargando…
Functional Specificity of TPS Brain Stimulation Effects in Patients with Alzheimer’s Disease: A Follow-up fMRI Analysis
INTRODUCTION: Transcranial pulse stimulation (TPS) has been recently introduced as a novel clinical brain stimulation technique based on highly focused ultrasound pressure pulses. In a first pilot study on clinical effects of navigated and focused ultrasound neuromodulation, a dichotomy of functiona...
Autores principales: | , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer Healthcare
2022
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9338196/ https://www.ncbi.nlm.nih.gov/pubmed/35633496 http://dx.doi.org/10.1007/s40120-022-00362-8 |
_version_ | 1784759915946967040 |
---|---|
author | Dörl, Gregor Matt, Eva Beisteiner, Roland |
author_facet | Dörl, Gregor Matt, Eva Beisteiner, Roland |
author_sort | Dörl, Gregor |
collection | PubMed |
description | INTRODUCTION: Transcranial pulse stimulation (TPS) has been recently introduced as a novel clinical brain stimulation technique based on highly focused ultrasound pressure pulses. In a first pilot study on clinical effects of navigated and focused ultrasound neuromodulation, a dichotomy of functional effects was found: patients with Alzheimer’s disease improved cognition and language but deteriorated with visuo-constructive functions. METHODS: We analyzed changes in functional connectivity measured with functional magnetic resonance imaging (fMRI) using graph analysis of a visuo-constructive network in 18 patients with Alzheimer’s disease. We calculated the network’s global efficiency and tested for correlation with visuo-constructive test scores to explain this dichotomy. RESULTS: Important visuo-constructive network nodes were not stimulated in the pilot setting and correspondingly global efficiency of a visuo-constructive network was decreased after TPS therapy, compatible with a natural progress of the disease. A correlation between visuo-constructive scores and changes in global efficiency was found. CONCLUSION: Results argue for a high functional specificity of ultrasound-based neuromodulation with TPS. |
format | Online Article Text |
id | pubmed-9338196 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Springer Healthcare |
record_format | MEDLINE/PubMed |
spelling | pubmed-93381962022-07-31 Functional Specificity of TPS Brain Stimulation Effects in Patients with Alzheimer’s Disease: A Follow-up fMRI Analysis Dörl, Gregor Matt, Eva Beisteiner, Roland Neurol Ther Brief Report INTRODUCTION: Transcranial pulse stimulation (TPS) has been recently introduced as a novel clinical brain stimulation technique based on highly focused ultrasound pressure pulses. In a first pilot study on clinical effects of navigated and focused ultrasound neuromodulation, a dichotomy of functional effects was found: patients with Alzheimer’s disease improved cognition and language but deteriorated with visuo-constructive functions. METHODS: We analyzed changes in functional connectivity measured with functional magnetic resonance imaging (fMRI) using graph analysis of a visuo-constructive network in 18 patients with Alzheimer’s disease. We calculated the network’s global efficiency and tested for correlation with visuo-constructive test scores to explain this dichotomy. RESULTS: Important visuo-constructive network nodes were not stimulated in the pilot setting and correspondingly global efficiency of a visuo-constructive network was decreased after TPS therapy, compatible with a natural progress of the disease. A correlation between visuo-constructive scores and changes in global efficiency was found. CONCLUSION: Results argue for a high functional specificity of ultrasound-based neuromodulation with TPS. Springer Healthcare 2022-05-28 /pmc/articles/PMC9338196/ /pubmed/35633496 http://dx.doi.org/10.1007/s40120-022-00362-8 Text en © The Author(s) 2022 https://creativecommons.org/licenses/by-nc/4.0/Open AccessThis article is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License, which permits any non-commercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by-nc/4.0/ (https://creativecommons.org/licenses/by-nc/4.0/) . |
spellingShingle | Brief Report Dörl, Gregor Matt, Eva Beisteiner, Roland Functional Specificity of TPS Brain Stimulation Effects in Patients with Alzheimer’s Disease: A Follow-up fMRI Analysis |
title | Functional Specificity of TPS Brain Stimulation Effects in Patients with Alzheimer’s Disease: A Follow-up fMRI Analysis |
title_full | Functional Specificity of TPS Brain Stimulation Effects in Patients with Alzheimer’s Disease: A Follow-up fMRI Analysis |
title_fullStr | Functional Specificity of TPS Brain Stimulation Effects in Patients with Alzheimer’s Disease: A Follow-up fMRI Analysis |
title_full_unstemmed | Functional Specificity of TPS Brain Stimulation Effects in Patients with Alzheimer’s Disease: A Follow-up fMRI Analysis |
title_short | Functional Specificity of TPS Brain Stimulation Effects in Patients with Alzheimer’s Disease: A Follow-up fMRI Analysis |
title_sort | functional specificity of tps brain stimulation effects in patients with alzheimer’s disease: a follow-up fmri analysis |
topic | Brief Report |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9338196/ https://www.ncbi.nlm.nih.gov/pubmed/35633496 http://dx.doi.org/10.1007/s40120-022-00362-8 |
work_keys_str_mv | AT dorlgregor functionalspecificityoftpsbrainstimulationeffectsinpatientswithalzheimersdiseaseafollowupfmrianalysis AT matteva functionalspecificityoftpsbrainstimulationeffectsinpatientswithalzheimersdiseaseafollowupfmrianalysis AT beisteinerroland functionalspecificityoftpsbrainstimulationeffectsinpatientswithalzheimersdiseaseafollowupfmrianalysis |