نتایج جستجو برای: acoustic imaging

تعداد نتایج: 537832  

Journal: :The Journal of the Acoustical Society of America 1995

Journal: :Biomedical Optics Express 2011

2006
Dong Zhang Xiu-fen Gong

Acoustic nonlinear imaging has brought about significant improvements in image quality by taking advantage of the nonlinear components. This paper reviews works on acoustic nonlinear imaging for biological tissues in our Laboratory, including acoustic nonlinearity parameter B/A imaging, tissue harmonic imaging by using the multi-phase-coded-pulse technique and super harmonic imaging. Theoretica...

Journal: :AJNR. American journal of neuroradiology 1996
R W Allen H R Harnsberger C Shelton B King D A Bell R Miller J L Parkin R I Apfelbaum D Parker

PURPOSE To determine whether unenhanced high-resolution T2-weighted fast spin-echo MR imaging provides an acceptable and less expensive alternative to contrast-enhanced conventional T1-weighted spin-echo MR techniques in the diagnosis of acoustic schwannoma. METHODS We reviewed in a blinded fashion the records of 25 patients with pathologically documented acoustic schwannoma and of 25 control...

2014
Jonathan E. Peelle

Functional magnetic resonance imaging (fMRI) studies involve substantial acoustic noise. This review covers the difficulties posed by such noise for auditory neuroscience, as well as a number of possible solutions that have emerged. Acoustic noise can affect the processing of auditory stimuli by making them inaudible or unintelligible, and can result in reduced sensitivity to auditory activatio...

Journal: :The Journal of the Acoustical Society of America 1971

Journal: :Acoustical Science and Technology 2002

Journal: :Applied sciences 2023

This review examines the use of magneto-acoustic methods to measure electrical conductivity. It focuses on two techniques developed in last decades: Magneto-Acoustic Tomography with Magnetic Induction (MAT-MI) and Magneto-Acousto-Electrical (MAET). These developments have potential change way medical doctors image biological tissue.

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