Source: Web Authors: Chen Manshan, Yuan Yang The medical ultrasound diagnostic equipment refers to devices that utilize the properties of ultrasound to perform examination functions. Ultrasound is a mechanical wave with a vibration frequency >20kHz, which exceeds the upper limit of human hearing. The frequency range of ultrasound is from 2×10-2 to 2×100 Hz, while … Read more
The ultrasound diagnostic device is a common examination method in clinical diagnosis and treatment, and its usage directly affects the accuracy of the examination. As maintenance personnel, one should have a precise understanding of the working principles, components, functions, technical parameters, and operating procedures of the ultrasound diagnostic device. It is also necessary to have … Read more
Recently, our hospital has introduced a multifunctional vascular ultrasound device for the neurology department, which is now in regular use. This device can quickly diagnose intracranial arterial vascular lesions and provide a more comprehensive assessment of the intracranial arterial blood vessels, allowing for more accurate diagnoses. Transcranial Doppler (TCD) is a new technology that utilizes … Read more
A paper published in August 2022 by Hiroyuki Kojima, Atsushi Sofuni, and other scholars from the Department of Gastroenterology and Hepatology, Tokyo Medical University, in J Hepatobiliary Pancreat Sci. Literature Interpretation Key Points of This Article: 1. Pancreatic SWE aids in the diagnosis of Chronic Pancreatitis (CP). Combining with CT values makes the diagnosis more … Read more
Shear wave elastography (SWE) is a new ultrasound technology developed in recent years, widely used in the diagnosis and differential diagnosis of diseases of the liver, breast, thyroid, prostate, and others[1]. The limitation of SWE lies in the algorithms for assessing tissue elasticity, which neglect the impact of tissue viscosity. Viscosity can also characterize the … Read more
Taking the Philips Sonos 5500 color Doppler ultrasound machine as an example, during the actual application of the color Doppler ultrasound machine, a malfunction occurred on the left touch screen, where the preset condition selection and probe switching often resulted in multiple attempts failing to select. Consider that the touch screen may need recalibration due … Read more
3 D Acoustic technology brings new options for 3D printing. Currently, most 3D printing methods rely on photo (light) or thermal activation reactions for precise manipulation of polymers. A new platform technology called direct sound printing (DSP) uses sound waves to create new objects, potentially providing a third option. This process is described in a … Read more
Piezoelectric Dynamic Therapy (PzDT) is a tumor treatment method that utilizes mechanical energy to trigger the polarization of piezoelectric materials. Under the action of ultrasound (US), the immense pressure generated by the collapse of cavitation bubbles serves as a mechanical force source for the piezoelectric sonosensitizer, showing feasible potential. An internal electric field can form … Read more
Source Qian Zhang, Jiaxing Wang, Yanjun Ding, et al. Inhibition of Breast Cancer Cells by Novel Nanoparticles Combined with Low-Intensity Focused Ultrasound. Chinese Journal of Medical Imaging, 2020, 28(12): 907-911+917 Abstract Objective To explore the ability of the phase-change nanoparticles (Ce6@PFP/PLGA NPs) loaded with the sonosensitizer Chlorin e6 (Ce6) and perfluoropentane (PFP) combined with low-intensity … Read more
iNature Intense noise can damage the spiral ganglion neurons (SGN) in the inner ear, affecting axonal regeneration and leading to noise-induced hearing loss (NIHL). On November 19, 2024, researchers from Fudan University, Bu Wenbo, Ren Dongdong, and Liu Yanyan published a paper titled“Ultrasound-Triggered NO Release to Promote Axonal Regeneration for Noise-Induced Hearing Loss Therapy” in … Read more