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'Therapeutic ultrasound'

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https://www.readbyqxmd.com/read/28979692/therapeutic-ultrasound-plus-pulsed-electromagnetic-field-improves-recovery-from-peripheral-arterial-disease-in-hypertension
#1
Zhao-Yang Lu, Hong-Sheng Zhou, Zhi-Xiao Su, Jia Qi, Jian Zhang, Guan-Hua Xue, Yue Li, Chang-Ning Hao, Yi-Qin Shi, Jun-Li Duan
The objective of this investigation was to evaluate the therapy effect of combined therapeutic ultrasound (TUS) treatment and pulsed electromagnetic field (PEMF) therapy on angiogenesis in hypertension-related hindlimb ischemia. After subjecting excision of the left femoral artery, spontaneously hypertensive rats (SHRs) were randomly distributed to one of four groups: SHR; TUS treated SHR (SHR-TUS); PEMF treated SHR (PEMF-TUS); and TUS plus PEMF treated SHR (SHR-TUS-PEMF). Wistar-Kyoto rats (WKYs) with femoral artery excision were regarded as a control group...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28968232/the-effect-of-kinesio%C3%A2-taping-on-pain-functionality-mobility-and-endurance-in-the-treatment-of-chronic-low-back-pain-a-randomized-controlled-study
#2
Fahri Köroğlu, Tuğba Kuru Çolak, M Gülden Polat
BACKGROUND: Low back pain is one of the most important causes of morbidity. OBJECTIVE: This study was designed to evaluate the effect of Kinesio® taping on pain, functionality, mobility and endurance in chronic low back pain treatment. METHODS: Patients with chronic low back pain were randomly divided into three groups. Therapeutic ultrasound, hot packs, and transcutaneous electrical nerve stimulation were applied to each group for ten sessions during two weeks, and therapeutic exercises were applied in the clinic under physiotherapist supervision starting from the sixth session...
September 22, 2017: Journal of Back and Musculoskeletal Rehabilitation
https://www.readbyqxmd.com/read/28932004/effects-of-pulsed-therapeutic-ultrasound-on-the-treatment-of-people-with-knee-osteoarthritis
#3
Eliana-Isabel Rodríguez-Grande, Jose-Luis Osma-Rueda, Yannely Serrano-Villar, Carolina Ramírez
[Purpose] The aim was to evaluate the effect of therapeutic ultrasound on the pain, joint mobility, muscle strength, physical function, and quality of life of people with knee OA. [Subjects and Methods] One-site, one-arm, before-after study that included people with Grade II or III tibiofemoral osteoarthritis. Ten therapeutic ultrasound sessions (duty cycle=20%, ERA=10 cm(2), BNR=6:1, SATP=2.2 W/cm(2), SATA=0.44 W/cm(2), frequency=1 MHz, time=4 minutes) were applied. Assessments of primary outcome variables: pain intensity and function, and secondary variables: joint mobility, muscle strength and quality of life, were performed at onset and end of therapy; an additional intermediate evaluation was included for the primary variables...
September 2017: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/28929267/increasing-distribution-of-drugs-released-from-in-situ-forming-plga-implants-using-therapeutic-ultrasound
#4
Chawan Manaspon, Christopher Hernandez, Pinunta Nittayacharn, Selva Jeganathan, Norased Nasongkla, Agata A Exner
One of the challenges in developing sustained-release local drug delivery systems is the limited treatment volume that can be achieved. In this work, we examine the effectiveness of using low frequency, high intensity ultrasound to promote the spatial penetration of drug molecules away from the implant/injection site boundary upon release from injectable, phase inverting poly(lactic acid-co-glycolic acid) (PLGA) implants. Fluorescein-loaded PLGA solutions were injected into poly(acrylamide) phantoms, and the constructs were treated daily for 14 days with ultrasound at 2...
September 19, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28900624/ultrasound-mediated-microbubbles-destruction-augmented-sonolysis-an-in-vitro-and-in-vivo-study
#5
Hai Cui, Qiong Zhu, Yunhua Gao, Hongmei Xia, Kaibin Tan, Ying He, Zheng Liu, Yali Xu
OBJECTIVE: This study was aimed at exploring ultrasound mediated microbubbles destruction (UMMD) assisted sonolysis in both the in vitro and in vivo clots. METHODS: Therapeutic ultrasound (TUS) and lipid microbubbles (MBs) were used in whole blood clots and divided into the control, TUS group, and TUS + MB group. Thrombolytic rates and microscopy were performed. Color Doppler flow imaging (CDFI) and angiography were performed to evaluate the recanalization rates and flow scores in femoral arterial thrombus (FAT) in rabbits...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28844602/further-investigation-on-high-intensity-focused-ultrasound-hifu-treatment-for-thyroid-nodules-effectiveness-related-to-baseline-volumes
#6
Michael Sennert, Christian Happel, Yücel Korkusuz, Frank Grünwald, Björn Polenz, Daniel Gröner
RATIONALE AND OBJECTIVES: Several minimally invasive thermal techniques have been developed for the treatment of benign thyroid nodules. A new technique for this indication is high-intensity focused ultrasound (HIFU). The aim of this study was to assess effectiveness in varying preablative nodule volumes and whether outcome patterns that were reported during studies with other thermal ablative procedures for thyroid nodule ablation would also apply to HIFU. MATERIALS AND METHODS: Over the last 2 years, 19 nodules in 15 patients (12 women) whose average age was 58...
August 23, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28833460/genomic-damage-induced-by-1-mhz-ultrasound-in-vitro
#7
Ion Udroiu, Jessica Marinaccio, Angelico Bedini, Claudia Giliberti, Raffaele Palomba, Antonella Sgura
Genotoxic effects of therapeutic ultrasound are poorly documented, when compared with the wide use of this physical agent. The aim of this work was to investigate the clastogenic and aneugenic potential of 1 MHz ultrasound, employing intensities (200 and 300 mW/cm(2) ) above the cavitational threshold, but in the range of those normally used in therapeutics. Both normal fibroblasts (AG01522) and tumoral cells (MCF-7) were sonicated. While no effects on viability were noted, significant increases of CREST-negative micronuclei (indicative of clastogenesis) and CREST-positive micronuclei (indicative of aneuploidy) were detected...
August 19, 2017: Environmental and Molecular Mutagenesis
https://www.readbyqxmd.com/read/28776612/overcoming-t-gondii-infection-and-intracellular-protein-nanocapsules-as-biomaterials-for-ultrasonically-controlled-drug-release
#8
REVIEW
M S Aw, L Paniwnyk
One of the pivotal matters of concern in intracellular drug delivery is the preparation of biomaterials containing drugs that are compatible with the host target. Nanocapsules for oral delivery are found to be suitable candidates for targeting Toxoplasma gondii (T. gondii), a maneuvering and smart protozoic parasite found across Europe and America that causes a subtle but deadly infection. To overcome this disease, there is much potential of integrating protein-based cells into bioinspired nanocompartments such as via biodegradable cross-linked disulfide polyelectrolyte nanoparticles...
September 26, 2017: Biomaterials Science
https://www.readbyqxmd.com/read/28766896/novel-cranial-implants-of-yttria-stabilized-zirconia-as-acoustic-windows-for-ultrasonic-brain-therapy
#9
Mario I Gutierrez, Elias H Penilla, Lorenzo Leija, Arturo Vera, Javier E Garay, Guillermo Aguilar
Therapeutic ultrasound can induce changes in tissues by means of thermal and nonthermal effects. It is proposed for treatment of some brain pathologies such as Alzheimer's, Parkinson's, Huntington's diseases, and cancer. However, cranium highly absorbs ultrasound reducing transmission efficiency. There are clinical applications of transcranial focused ultrasound and implantable ultrasound transducers proposed to address this problem. In this paper, biocompatible materials are proposed for replacing part of the cranium (cranial implants) based on low porosity polycrystalline 8 mol% yttria-stabilized-zirconia (8YSZ) ceramics as acoustic windows for brain therapy...
August 2, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28753417/ex-vivo-determined-experimental-correction-factor-for-the-ultrasonic-source-term-in-the-bioheat-equation
#10
Guillermo A Cortela, Wagner C A Pereira, Carlos A Negreira
The objective of this work is to propose an effective absorption coefficient (αeffec) as an empirical correction factor in the source term of the bioheat equation. The temperature rise in biological tissue due to ultrasound insonification is produced by energy absorption. Usually, the ultrasonic absorption coefficient (αA) is used as a source term in the bioheat equation to quantify the temperature rise, and the effect of scattering is disregarded. The coefficient αeffec includes the scattering contribution as an additional absorption term and should allow us to make a better estimation of the thermal dose (TD), which is important for clinical applications...
July 19, 2017: Ultrasonics
https://www.readbyqxmd.com/read/28739379/ultrasound-induced-bubble-clusters-in-tissue-mimicking-agar%C3%A2-phantoms
#11
Pooya Movahed, Wayne Kreider, Adam D Maxwell, Barbrina Dunmire, Jonathan B Freund
Therapeutic ultrasound can drive bubble activity that damages soft tissues. To study the potential mechanisms of such injury, transparent agar tissue-mimicking phantoms were subjected to multiple pressure wave bursts of the kind being considered specifically for burst wave lithotripsy. A high-speed camera recorded bubble activity during each pulse. Various agar concentrations were used to alter the phantom's mechanical properties, especially its stiffness, which was varied by a factor of 3.5. However, the maximum observed bubble radius was insensitive to stiffness...
October 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28738698/implementation-and-evaluation-of-a-rehabilitation-concept-in-a-patient-suffering-from-scleredema-adultorum-buschke-a-case-report
#12
Michael Mickel, Ahmad Jalili, Christina Gesslbauer, Richard Crevenna
PURPOSE: Scleredema Adultorum Buschke is a disorder manifesting indurations of the skin mostly followed by musculoskeletal impairment. Data regarding this fact are seldom found and documentation of functional outcome of physical therapies and modalities related to Scleredema Adultorum Buschke is fragmentary. The aim of this case report is to demonstrate and to document an effective concept of rehabilitation in a patient suffering from Scleredema Adultorum Buschke. METHODS: A treatment plan was developed containing therapeutic ultrasound, manual lymphatic drainage, and physiotherapy...
July 24, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28735734/variation-of-high-intensity-therapeutic-ultrasound-hitu-pressure-field-characterization-effects-of-hydrophone-choice-nonlinearity-spatial-averaging-and-complex-deconvolution
#13
Yunbo Liu, Keith A Wear, Gerald R Harris
Reliable acoustic characterization is fundamental for patient safety and clinical efficacy during high-intensity therapeutic ultrasound (HITU) treatment. Technical challenges, such as measurement variation and signal analysis, still exist for HITU exposimetry using ultrasound hydrophones. In this work, four hydrophones were compared for pressure measurement: a robust needle hydrophone, a small polyvinylidene fluoride capsule hydrophone and two fiberoptic hydrophones. The focal waveform and beam distribution of a single-element HITU transducer (1...
October 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28689485/therapeutic-ultrasound-after-sciatic-nerve-compression-of-wistar-rats
#14
Gladson Ricardo Flor Bertolini, Jhenifer Karvat, Camila Mayumi Martin Kakihata, Lucinéia de Fátima Chasko Ribeiro, Rose Meire Costa Brancalhão
OBJECTIVES: The present study analyzed the effect of therapy with therapeutic ultrasound on the sciatic nerve after compression injury, comparing two similar doses of SATA. METHODS: In total, 32 Wistar rats were used, divided into the following groups: CG - control; IG - compression injury of the sciatic nerve; IGCU - injury and continuous ultrasound; and IGPU - injury and 20% pulsed ultrasound. The treatment with ultrasound started on the 3rd postoperative day, with a frequency of 1 MHz, 0...
July 8, 2017: Neurological Research
https://www.readbyqxmd.com/read/28681404/integration-of-deployable-fluid-lenses-and-reflectors-with-endoluminal-therapeutic-ultrasound-applicators-preliminary-investigations-of-enhanced-penetration-depth-and-focal-gain
#15
Matthew S Adams, Vasant A Salgaonkar, Serena J Scott, Graham Sommer, Chris J Diederich
PURPOSE: Catheter-based ultrasound applicators can generate thermal ablation of tissues adjacent to body lumens, but have limited focusing and penetration capabilities due to the small profile of integrated transducers required for the applicator to traverse anatomical passages. This study investigates a design for an endoluminal or laparoscopic ultrasound applicator with deployable acoustic reflector and fluid lens components, which can be expanded after device delivery to increase the effective acoustic aperture and allow for deeper and dynamically adjustable target depths...
October 2017: Medical Physics
https://www.readbyqxmd.com/read/28633773/magnetic-resonance-imaging-and-clinical-outcomes-of-laser-therapy-ultrasound-therapy-and-extracorporeal-shock-wave-therapy-for-treatment-of-plantar-fasciitis-a-randomized-controlled-trial
#16
Aslihan Ulusoy, Lale Cerrahoglu, Sebnem Orguc
We determined and compared the effectiveness of low-level laser therapy (LLLT), therapeutic ultrasound (US) therapy, and extracorporeal shock wave therapy (ESWT) using magnetic resonance imaging (MRI). We performed a randomized, prospective, comparative clinical study. A total of 60 patients with a diagnosis of chronic plantar fasciitis were divided randomly into 3 treatment groups: group 1 underwent 15 sessions of LLLT (8 J/cm(2); 830 nm); group 2 underwent 15 sessions of continuous US (1 mHz; 2 W/cm(2)); and group 3 underwent 3 sessions of ESWT (2000 shocks)...
July 2017: Journal of Foot and Ankle Surgery: Official Publication of the American College of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28588166/comparative-efficacy-of-local-steroid-and-therapeutic-ultrasound-for-quicker-functional-improvement-in-tennis-elbow
#17
M S Rahman, A K Salek, M A Ullah
Lateral epicondylitis or Tennis elbow is very common repetitive stress injury or cumulative trauma disorder among active professionals and tennis players. Local steroid injection can provide quick functional improvement as sought by most of the patients. Therapeutic ultrasound and eccentric exercises can also improve the function. This study was carried out to see the comparative efficacy of these two modalities of treatments in terms of quicker functional improvement and this randomized interventional clinical trial was carried out in a private rehabilitation hospital in Dhaka...
April 2017: Mymensingh Medical Journal: MMJ
https://www.readbyqxmd.com/read/28579687/therapeutic-ultrasound-and-prostate-cancer
#18
REVIEW
Karthik M Sundaram, Sam S Chang, David F Penson, Sandeep Arora
Therapeutic ultrasound approaches including high-intensity focused ultrasound (HIFU) are emerging as popular minimally invasive alternative treatments for localized, low-to-intermediate risk prostate cancer. FDA approval was recently granted for two ultrasound-guided HIFU devices. Clinical trials for devices using MRI guidance are ongoing. The current level of evidence for whole-gland ultrasound ablation suggests that its clinical efficacy and adverse event rates including erectile dysfunction and urinary incontinence are similar to current definitive therapies such as radical prostatectomy and external-beam radiotherapy...
June 2017: Seminars in Interventional Radiology
https://www.readbyqxmd.com/read/28541897/capacitive-micromachined-ultrasound-transducers-for-interstitial-high-intensity-ultrasound-therapies
#19
W Apoutou N'Djin, Bjoern Gerold, Jeremy Vion-Bailly, Michael S Canney, An Nguyen-Dinh, Alexandre Carpentier, Jean-Yves Chapelon
Capacitive micromachined ultrasound transducers (CMUTs) exhibit several potential advantages over conventional piezo technologies for use in therapeutic ultrasound (US) devices, including ease of miniaturization and integration with electronics, broad bandwidth (>several megahertz), and compatibility with magnetic resonance imaging (MRI). In this paper, the electroacoustic performance of CMUTs designed for interstitial high-intensity contact US (HICU) applications was evaluated and the feasibility of generating US-induced heating and thermal destruction of biological tissues was studied...
August 2017: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/28504325/therapeutic-ultrasound-for-venous-leg-ulcers
#20
REVIEW
Nicky Cullum, Zhenmi Liu
BACKGROUND: Venous leg ulcers are a type of chronic, recurring, complex wound that is more common in people aged over 65 years. Venous ulcers pose a significant burden to patients and healthcare systems. While compression therapy (such as bandages or stockings) is an effective first-line treatment, ultrasound may have a role to play in healing venous ulcers. OBJECTIVES: To determine whether venous leg ulcers treated with ultrasound heal more quickly than those not treated with ultrasound...
May 15, 2017: Cochrane Database of Systematic Reviews
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