DOI: http://dx.doi.org/10.18203/issn.2454-5929.ijohns20162179

Role of high resolution computed tomography in the evaluation of temporal bone lesions: our experience

Jyothi A. C., Shrikrishna B. H.

Abstract


Background: High resolution computed tomography (HRCT) is a modification of routine computed tomography. It provides visual information of the minute structural details of the temporal bone. The present study aimed at studying the pathological processes of the temporal bone and their extent using HRCT.

Methods: This prospective study was done by taking HRCT of the temporal bone in 50 patients who presented to us with clinical features of temporal bone diseases. Both contrast and no enhanced images were obtained by taking 2mm sections using ultra high algorithm in both coronal and axial planes. The results were then analysed statistically.  

Results: Amongst the 50 cases, infection was the most common pathology affecting the temporal bone.  Neoplasms formed the second largest group of lesions with acoustic neuroma being the most common tumour.

Conclusions: HRCT is a revolutionary imaging tool in evaluating the various pathologies affecting the temporal bone. It identifies the hidden areas of the temporal bone. It also lays down an anatomical roadmap for the surgeon preoperatively. 


Keywords


Computed tomography, Acoustic neuroma, Cholesteatoma, Middle ear, Temporal bone

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References


Virapongse C, Rothman SLG, Kier EL, Sarwar M. Computed tomographic anatomy of the temporal bone. AJR. 1982;139:739-49.

Swartz JD. High-Resolution computed tomography of the middle ear and mastoid part I: Normal radio-anatomy including normal variations. Radiology. 1983;148:449.

Shaffar KA, Haughton VM, Wilson CR. High-Resolution computed tomography of the temporal bone. Radiology. 1980;134:409-14.

Phillips GS, LoGerfo SE, Richardson ML, Anzai Y. Interactive Web-based Learning Module on CT of the Temporal Bone Anatomy and Pathology. Radiographics. 2012;32:85–105.

Lloyds GAS, Phelps PD, Du Boulay GH. High resolution computerized tomography of the petrous bone. Brit. J. Radiology. 1980;53:631.

Fritz P, Rieden K, Lenarz T, Haels J, ZumWinkel K. Radiological evaluation of temporal bone disease: high resolution CT versus conventional x-ray diagnosis. Br J Radiol. 1989;62(734):107-13.

Johnson DW, Varorhees RL, Hufkin RB. Cholesteatomas of the temporal bone: Role of CT. Radiology. 1983;148:733-7.

Jacklu J, Dillon W, Schindler R. Computerized tomography in suppurative ear disease; a correlation of surgical and radiographic findings. Laryngo- scope. 1984;94:746-52.

Swartz JD. Cholesteatomas of the middle ear: Diagnosis, etiology and complications. Radiology. 1987;163:763-5.

Swartz JD. Cholesteatomas of the middle ear: diagnosis, etiology and complications. Radiol Clin North Am. 1984;22:15-35.

Remley KB, Harns Berger HR, Jacobs JM, Smoker WR. The radiologic evaluation of pulsatile tinnitus and the vascular tympanic membrane. Semin ultrasound CT MR. 1989;10:236-50.

Taylor S. The petrous temporal bone (including the cerebellopontine angle tumours). Radiol cling north Am. 1982;20:67-86.

Chakeres DW, Lamasters D. Paragangliomas of the temporal bones: High-resolution CT studies. Radiology. 1984;150:749.

Larson TC, Reese DF, Baker HL. Glomus Tympanicum chemodectomas: Radiographic and clinical characteristics. Radiology. 1987;163:801-6.

Gurher HD, Jeusen JE, Barues L Jr, May M. Ossifying Hemangiomas of the Temporal Bone: Evaluation with CT. Radiology. 1987;164:831-5.

Swartz JD, Faerber EN, Wolfson RJ, Marlowe FI. Fenestral otosclerosis: Significance of pre-operative CT evaluation. Radiology. 1984;151(3):703-7.

Mafee MF, Henrikson GC, Deitch RL, Norouzi P, Kumar A, Kriz R, et al. Use of CT in stapedial otosclerosis. Radiology. 1985;156:704-9.

Damsma H, DeGroot JA, Zonneveld FW, Van waes PF, Huizing EH. CT of cochlear otosclerosis. Radiol Clin North Am. 1984;22:37-44.

Lo WWM, Solti-Bohman LG, Mc Elveen JT. Aberrant carotid artery: Radiological diagnosis with emphasis on high resolution computed tomography. Radio Graphics. 1985;5:985-93.

Valvaris A. Exploration of the facial nerve canal by High resolution computed tomography: anatomy and pathology. Neuroradiology. 1983;24:139.

Lloyd TV, Van Aman M, Johnson JC. Aberrant jugular bulb presenting as middle ear mass. Radiology. 1979;131:139-41.