Evaluation of Hearing Loss: Understanding Audiologic Testing to Refine Image Interpretation.

Autor:	Malouf WT; From the Departments of Radiology (W.T.M., K.D.H., P.M.B.), Audiology (M.P.B.), and Otolaryngology (N.T.M., D.J.K., E.P.K., M.M.G., P.C.S.), Wake Forest University School of Medicine, Medical Center Blvd, Winston-Salem, NC 27157., Bachmann MP; From the Departments of Radiology (W.T.M., K.D.H., P.M.B.), Audiology (M.P.B.), and Otolaryngology (N.T.M., D.J.K., E.P.K., M.M.G., P.C.S.), Wake Forest University School of Medicine, Medical Center Blvd, Winston-Salem, NC 27157., Meegalla NT; From the Departments of Radiology (W.T.M., K.D.H., P.M.B.), Audiology (M.P.B.), and Otolaryngology (N.T.M., D.J.K., E.P.K., M.M.G., P.C.S.), Wake Forest University School of Medicine, Medical Center Blvd, Winston-Salem, NC 27157., Kirse DJ; From the Departments of Radiology (W.T.M., K.D.H., P.M.B.), Audiology (M.P.B.), and Otolaryngology (N.T.M., D.J.K., E.P.K., M.M.G., P.C.S.), Wake Forest University School of Medicine, Medical Center Blvd, Winston-Salem, NC 27157., Kiell EP; From the Departments of Radiology (W.T.M., K.D.H., P.M.B.), Audiology (M.P.B.), and Otolaryngology (N.T.M., D.J.K., E.P.K., M.M.G., P.C.S.), Wake Forest University School of Medicine, Medical Center Blvd, Winston-Salem, NC 27157., Gandolfi MM; From the Departments of Radiology (W.T.M., K.D.H., P.M.B.), Audiology (M.P.B.), and Otolaryngology (N.T.M., D.J.K., E.P.K., M.M.G., P.C.S.), Wake Forest University School of Medicine, Medical Center Blvd, Winston-Salem, NC 27157., Sioshansi PC; From the Departments of Radiology (W.T.M., K.D.H., P.M.B.), Audiology (M.P.B.), and Otolaryngology (N.T.M., D.J.K., E.P.K., M.M.G., P.C.S.), Wake Forest University School of Medicine, Medical Center Blvd, Winston-Salem, NC 27157., Hiatt KD; From the Departments of Radiology (W.T.M., K.D.H., P.M.B.), Audiology (M.P.B.), and Otolaryngology (N.T.M., D.J.K., E.P.K., M.M.G., P.C.S.), Wake Forest University School of Medicine, Medical Center Blvd, Winston-Salem, NC 27157., Bunch PM; From the Departments of Radiology (W.T.M., K.D.H., P.M.B.), Audiology (M.P.B.), and Otolaryngology (N.T.M., D.J.K., E.P.K., M.M.G., P.C.S.), Wake Forest University School of Medicine, Medical Center Blvd, Winston-Salem, NC 27157.
Jazyk:	angličtina
Zdroj:	Radiographics : a review publication of the Radiological Society of North America, Inc [Radiographics] 2024 Oct; Vol. 44 (10), pp. e240018.
DOI:	10.1148/rg.240018
Abstrakt:	The standard of reference for diagnosing and characterizing hearing loss is audiologic testing. The results of audiologic testing inform the imaging algorithm and the differential diagnosis for the underlying cause. Pure-tone audiometry tests the ability to hear tones across different frequencies, and the results are displayed as an audiogram. Tympanometry measures tympanic membrane compliance as a function of pressure to generate a tympanogram. Acoustic reflex testing helps differentiate third window lesions from other causes of conductive hearing loss. Clinical and audiologic assessment of sensorineural hearing loss helps in differentiating cochlear from retrocochlear causes. Symmetrical sensorineural hearing loss is typical of cochlear disease. Asymmetry increases the likelihood of a retrocochlear lesion, the most common of which among adults is vestibular schwannoma. Unlike patients with sensorineural hearing loss, who commonly have normal imaging studies, patients with conductive hearing loss are expected to have abnormal temporal bone CT studies. By incorporating the results of audiologic testing into their evaluation, radiologists can perform a more informed and more intentional search for the structural cause of hearing loss. The authors describe several audiogram configurations that suggest specific underlying mechanisms of conductive hearing loss. By providing a practical and accessible summary of the basics of audiologic testing, the authors empower the radiologist to leverage relevant clinical information and audiologic test results to interpret temporal bone imaging more confidently and more accurately, particularly temporal bone CT in the setting of conductive hearing loss. © RSNA, 2024.
Databáze:	MEDLINE
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