HIFU is named as one of the ultrasound-based therapeutic application areas discussed in the review.
First-pass extracted concept
high-intensity focused ultrasound
Aliases
HIFU, high frequency ultrasonic lesional techniques
Extracted Explainers
What the tool is doing
The review describes high-intensity focused ultrasound as an incisionless lesional surgical modality for tremor. Its success is presented as a driver of renewed interest in lesioning procedures.
The abstract names HIFU as a new technology contributing to renewed interest in lesion-based neuromodulation.
Resources required
What problem it solves
It expands the set of available surgical options for tremor and may improve access to treatment. The review specifically highlights it in patient-selection discussions.
The abstract links HIFU-associated methods to noninvasiveness and relatively low cost, which are presented as drivers of acceptance.
What it does not solve
Evidence Snippets
This review examines the technical evolution of FUS and its expanded applications in GBM, including subtypes of low- and high-intensity FUS and their mechanistic contributions to therapeutic effect.
Currently, FUS has been clinically applied for targeted brain ablation (high intensity [HIFU])
High-Intensity Focused ultrasound (HIFU) has emerged as a novel noninvasive neuromodulation technique.
We examine the biophysical mechanisms underlying US-based therapies, the design of multifunctional nanoplatforms, and their applications in enhanced imaging, high-intensity focused ultrasound (HIFU), sonodynamic therapy (SDT), and US-triggered drug delivery.
In view of the evolving landscape of functional neurosurgery in tremor, driven by the resurgence of lesional procedures following the success of high-intensity focused ultrasound, there is a need for a focused, updated review to support clinicians and patients selecting the most appropriate surgical treatment in tremor.
new technologies, especially high-intensity focused ultrasound (HIFU)
Supporting Sources
Linked Claims
The evolution of tremor surgery has broadened access and increased therapeutic options, but has made treatment selection more complex and dependent on evidence, personal, medical, social, and economic factors.
This evolution has broadened access to surgical treatments for individuals with tremor and has provided both clinicians and patients with a wider range of therapeutic options. Consequently, selecting the most appropriate surgical treatment for an individual has arguably become more complex, relying on a combination of evidence base, personal, medical, social, and economic factors.
Nanoparticle-ultrasound synergy is applied in enhanced imaging, HIFU, sonodynamic therapy, and ultrasound-triggered drug delivery for breast and gynecologic cancers.
We examine the biophysical mechanisms underlying US-based therapies, the design of multifunctional nanoplatforms, and their applications in enhanced imaging, high-intensity focused ultrasound (HIFU), sonodynamic therapy (SDT), and US-triggered drug delivery.
The noninvasiveness and relatively low cost of these outpatient lesion-based methods are key attributes contributing to growing acceptance.
The noninvasiveness and relatively low cost of these outpatient methods are key attributes contributing to growing acceptance.
Focused ultrasound has already been clinically applied for targeted brain ablation using high-intensity focused ultrasound and for neuromodulation using low-intensity focused ultrasound, while sonogenetics and BBB-targeted drug delivery are presented as emerging translational opportunities.
Currently, FUS has been clinically applied for targeted brain ablation (high intensity [HIFU]) and neuromodulation (low intensity [LIFU]), with recent basic science applications of sonogenetics and targeted drug delivery through the BBB (Precise Intracerebral Noninvasive Guided, or PING, Surgery) offering new opportunities for clinical translation.
Surgical interventions are often required for moderate-severe tremor syndromes or when medication side effects are unacceptable.
while medications can be effective in mild cases, surgical interventions are often required in moderate-severe syndromes or when medication side-effects are unacceptable
The findings suggest prioritization of S3 in targeted interventional management of sacroiliitis.
These findings provide new insight into sacroiliitis pathophysiology and suggest prioritization of S3 in targeted interventional management.
Radiofrequency ablation, deep brain stimulation, and ultrasonic lesional techniques remain valuable tools that can treat a variety of stereotactic targets using several targeting methods.
All these modalities remain valuable tools for the clinicians and can be used to treat a variety of stereotactic targets with several targeting methods.
During HIFU ablation targeting L5-S3 branches in patients with sacroiliitis, pain-related interruptions were disproportionately concentrated at sacral branches, especially S3 and secondarily S2.
Across 243 sonications, 162 interruptions (66.7%) occurred due to pain. Interruptions were unevenly distributed: 81% occurred at S2 and S3, with S3 alone accounting for 42%.
For ablative focused ultrasound therapies in epilepsy, the review identified 10 studies spanning preclinical work, clinical proof-of-concept, case reports, a completed pilot study, and ongoing Phase I-II trials.
For ablative therapies, 10 studies were identified, of which 2 were preclinical studies, 1 was a clinical proof-of-concept study, 3 were clinical case reports, 1 was a completed clinical pilot study, and 3 were ongoing Phase I-Phase II clinical trials.
Functional neurosurgery for tremor has evolved from radiofrequency ablation to deep brain stimulation and more recently to incisionless ultrasonic lesional techniques.
Over decades, the field of functional neurosurgery has evolved from traditional radiofrequency ablation to deep brain stimulation, and more recently, to incisionless high frequency ultrasonic lesional techniques.
The review discusses evidence and surgical approaches for essential tremor, Parkinson's disease tremor, and dystonic tremor, including outcomes across treatments and targets, waning benefit, and patient selection for high-intensity focused ultrasound and deep brain stimulation.
This educational review discusses the evidence behind, and surgical approaches to, essential tremor, Parkinson's disease tremor and dystonic tremor. Key topics addressed in the educational review include outcomes of different surgical treatments across tremor syndromes and stereotactic targets, waning benefit after surgical treatment, and optimization of patient selection with regards to high-intensity focused ultrasound and deep brain stimulation.
S2 demonstrated greater pain sensitivity than L5 and S1 during HIFU procedures for sacroiliitis.
S2 also demonstrated greater sensitivity than L5 (p = 0.003) and S1 (p = 0.001).
S3 showed significantly more pain-related interruptions than L5, S1, S2, and all other branches combined during HIFU procedures for sacroiliitis.
S3 showed significantly more interruptions than L5 (p = 0.0022), S1 (p = 0.0150), S2 (p = 0.0055), and all other branches combined (p < 0.001; w = 0.58, large effect).
Subdivision analysis indicated uniformly high sensitivity across S3, whereas S1 and S2 showed heterogeneous sensitivity patterns.
Subdivision analysis revealed uniformly high sensitivity across S3, whereas S1 and S2 displayed heterogeneous patterns.
Interest in lesion-based neuromodulation has resurged over the past decade, fueled in part by the noninvasive nature of newer technologies such as HIFU.
Over the past decade, interest in lesion-based neuromodulation has experienced a resurgence fueled in large part by the noninvasive nature of new technologies, especially high-intensity focused ultrasound (HIFU).