Design and validation of a phantom for transcranial ultrasonography

Article Acoustics

Approach to Detecting Aberrations in Transcranial Ultrasound Imaging

D. Leonov et al.

Summary: The presence of cranial bones complicates the imaging of brain tissues and blood vessels using ultrasound. This article proposes a new approach to detect wavefront aberrations and presents experimental results showing an increase of 22-45% in the proposed parameter in the presence of aberrations compared to the theoretical value for the aberrationless case.

ACOUSTICAL PHYSICS (2022)

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Article Engineering, Biomedical

Transcranial Beam Steering with Aberration Correction

L. Osipov et al.

Summary: An experimental ultrasound diagnostic system has been designed for noninvasive brain imaging through the intact skull, implementing a correction procedure based on a beacon approach for efficient focusing. The system requires two probes working at 3-4 MHz central frequency, attached coaxially on both sides of the head to acoustic transparency windows.

BIOMEDICAL ENGINEERING-MEDITSINSKAYA TEKNIKA (2021)

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Article Radiology, Nuclear Medicine & Medical Imaging

What Radiologist Should Know about MRI Translational Forces and Hazard: An Ex-Vivo Simulation of Retained Metallic Shrapnel

Ali Kanj et al.

Summary: In a country like Lebanon, the issue of metallic foreign bodies poses a significant dilemma for radiologists, especially when considering the safety of MRI exams. Through a small trial mimicking daily practice, it was found that the movement of shrapnel in the magnetic field is not negligible, prompting a reconsideration of the MRI safety of these foreign bodies.

RADIOLOGY RESEARCH AND PRACTICE (2021)

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Article Acoustics