You searched for "acoustic"

210 results found

The art and science of acoustic ecology

Aki Pasoulas summarises the diverse forms and approaches of the relatively new and expanding area of acoustic ecology, a discipline that studies the relationship between living beings and their sonic environment. Sound Ecology emerged in the late 1960s through the...

Getting to grips with acoustic trauma

Our understanding of hearing loss caused by noise exposure to those in the armed forces is growing in interest and understanding. Research at a cellular level is essential to increase our understanding so that we can better diagnose, manage and...

Military acoustic trauma: incidence and management

This is a retrospective study on the effects of acute acoustic trauma on the hearing thresholds of 225 military personnel. The main symptom after acute acoustic trauma due to firearm use was tinnitus. The authors consider it as the main...

Centralisation of care for acoustic tumour surgeries?

Several factors are responsible for readmission after acoustic tumour removal. The authors retrospectively studied the association between hospital, patient and insurance factors with the rate of readmission following acoustic tumour removal in the United States using the Nationwide Readmission Database...

Acoustic Immittance Measures: Basic and Advanced Practice

Writing a short yet comprehensive textbook to explore the vast and developing field of acoustic immittance measures seems like a challenge. This book aims to explore the core concepts behind immittance testing and provide an update on recent developments within...

Associated findings in MRI used for detecting acoustic neuroma

Presently, gadolinium enhanced magnetic resonance imaging is the ‘gold standard’ for investigating acoustic neuroma. There are often ‘incidental’ findings that may or may not be significant. In this study of 109 scans, the authors noted an uptake of 0.9% for...

Radiological diagnosis of mastoiditis in patients screened for acoustic neuroma

Magnetic resonance imaging is the ‘gold standard’ for screening patients suspected to have acoustic neuroma. Various abnormalities are picked up through this investigation, one of which, not uncommonly reported, is mastoiditis. This requires referral to otolaryngology and further evaluation. In...

Effects of blast and acoustic trauma: assessment of hearing status on war veterans

Introduction Acoustical conditions of the military are often dangerous and there is a real risk of blast trauma and acoustic trauma [1, 2]. Levels of military noises maybe reach up to 125 dBA [3]. Weapons produce instant shock waves (10μs)...

GMI A1 Acoustic Rhinometer

The GMI A1 Acoustic Rhinometer provides not only traditional area / distance display functions but also a comprehensive range of additional features such as pre / post comparisons, patient record storage, result validation facility, system calibration and checking tools, artificial...

Which cross-over frequency is best for electro-acoustic stimulation?

Advances in technology and improved soft surgical techniques have led to individuals with better hearing thresholds, especially at the low frequencies, becoming candidates for cochlear implants (CI). Surgeons are more confident that residual hearing can be preserved thus making those...

How effective and safe is audiologist-led screening of acoustic neuroma in patients with asymmetrical hearing loss and unilateral tinnitus?

About two out of 100 patients presenting with asymmetric hearing and unilateral tinnitus have acoustic neuroma. The traditional method in which these patients first attend a clinician and then undergo screening through an MRI, can be expensive and prolong the...

Acoustic schwannoma regression post-Gamma Knife treatment

In this retrospective study the authors studied the optimal interval following radiosurgery for differentiating between true growth of tumour versus pseudoprogression using serial volumetric data. A total of 118 patients with a median tumour volume of 0.74cm3 at Gamma Knife...