Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2015 May;37(4):385-92.
doi: 10.1007/s00276-014-1366-7. Epub 2014 Aug 31.

Radiological assessment of the sinus tympani: temporal bone HRCT analyses and surgically related findings

Daniele Marchioni  1 , Sara Valerini, Francesco Mattioli, Matteo Alicandri-Ciufelli, Livio Presutti
Affiliations

Radiological assessment of the sinus tympani: temporal bone HRCT analyses and surgically related findings

Daniele Marchioni et al. Surg Radiol Anat. 2015 May.

Abstract

Purpose: To evaluate the morphology of the sinus tympani (ST) based on computed tomography (CT) scans (axial view), describing the findings in a cohort of 148 patients (296 ears), and classifying the prevalence according to our ST classification. To evaluate the surgical prevalence based on the type of ST. To calculate the sensibility and positive predictive value (PPV) of high-resolution computed tomography (HRCT) scans for ST involvement by cholesteatoma.

Methods: Retrospective review of the radiologic database and surgical reports.

Results: In total, 98/296 (33.1%) middle ears presented a radiologic morphology Type A; 185/296 (62.5%) middle ears presented a radiologic morphology Type B; 13/296 (4.4%) middle ears presented a radiologic morphology Type C; HRCT showed a sensibility of 91%, specificity of 65%, PPV of 68% and negative predictive value (NPV) of 90%.

Conclusions: ST shape and depth can influence surgical preference in cholesteatoma surgery. In the case of a shallower ST, an exclusive endoscopic exploration is chosen; whereas in the case of a deeper ST, a retrofacial approach is usually preferred. HRCT scans demonstrated high sensibility and NPV for ST involvement by cholesteatoma.

PubMed Disclaimer

References

    1. Laryngoscope. 1993 Aug;103(8):939-43 - PubMed
    1. Otol Neurotol. 2002 Sep;23(5):631-5 - PubMed
    1. Am J Otol. 1995 Nov;16(6):741-50 - PubMed
    1. Otol Neurotol. 2009 Sep;30(6):758-65 - PubMed
    1. Clin Otolaryngol Allied Sci. 2002 Apr;27(2):95-7 - PubMed

MeSH terms

LinkOut - more resources