Here, we report a large, overhanging cystic bleb that compromised vision and induced a foreign body sensation in a patient who underwent a trabeculectomy surgery with anti-metabolite therapy 4 years prior. Ultrasound biomicroscopy revealed multiple loculations with thin septa inside the bleb and a high risk of damage to the bleb was anticipated with a straight forward surgical excision. We inje...

BACKGROUND/AIM A randomized, placebo-controlled, double-blind study was designed to investigate the effectiveness of ultrasound therapy in primary knee osteoarthritis. MATERIALS AND METHODS Ninety patients between 40 and 65 years of age having grade 2 and 3 bilateral knee osteoarthritis enrolled in the study were randomly assigned into 3 groups: continuous ultrasound, pulsed ultrasound, and p...

The histologic effects of a contact ultrasound applicator were compared with those of the immersion applicator that is currently used clinically for the treatment of glaucoma. The applicator coupling cone uses a distensible rubber membrane that can be inflated to control stand-off distance relative to the surface of the eye. This feature allows the focal point of the therapeutic beam to be plac...

Background/introduction Combining focused ultrasound (FUS) with real time MRI guidance and monitoring enables a new non-invasive treatment of brain disorders. In this technique multisource ultrasound waves are focused at a single point raising the temperature gradually until ablation occurs. Lesions as small as 2-4 mm can be made, without impact on surrounding tissue or remote brain tissue. Our...

PURPOSE To determine the effectiveness of low-intensity therapeutic ultrasound (LITUS) on wound healing in rats with third-degree burns. METHODS Twenty rats were divided into the Control Group that comprised four rats without third-degree burns that did not undergo LITUS, the Burned Group (BG), comprising eight rats with third-degree burns that did not undergo LITUS, and the Burned with Treat...

Chondromalacia patellae is a disorder often accompanied by patellofemoral instability. This can be simply a reflex inhibition of the quadriceps muscle secondary to pain. The eccentric and concentric contraction exercises are beneficial in strengthening of the quadriceps muscles and treatment of chondromalacia patellae. This study was conducted to compare between eccentric contraction and concen...

In this paper, we revisit one-channel time reversal (TR) experiments through multiple scattering media in the framework of the multiple scattering theory. The hyperresolution and the self-averaging property are retrieved. The developed formalism leads to a deeper understanding of the role of the ladder and most-crossed diagrams in a TR experiment and also establishes the link between TR and coh...

[Purpose] The objective of this study was to propose a work environment that could reduce musculoskeletal workload. Accordingly, spinal muscle fatigue caused by ultrasound therapy at various treatment table heights was examined and compared. [Subjects and Methods] Twenty-five healthy subjects participated in this experiment. The table height was set to 100%, 125%, and 150% of the stool height (...

Focusing waves inside a medium has applications in various science and engineering fields, e.g., in medical imaging, ultrasound therapy, noninvasive surgery, nondestructive evaluation, and geophysics in areas such as imaging and focusing microseismic events. The goal in focusing is to concentrate the wave energy at a specific time and location inside a medium. Various techniques have been devis...

Cavitation often occurs in therapeutic applications of medical ultrasound such as shock-wave lithotripsy (SWL) and high-intensity focused ultrasound (HIFU). Because cavitation bubbles can affect an intended treatment, it is important to understand the dynamics of bubbles in this context. The relevant context includes very high acoustic pressures and frequencies as well as elevated temperatures....