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Abstract

Italian

Progress in the surgery of the middle ear requires increasingly more precise visual diagnostics. Similarly important to the operator is the possibility to achieve radiological images similar to those seen during the operation.

Visual data acquired during CT examination was analysed using three-dimensional reconstruction (3D) and virtual endoscopy (VE) software. We selected on 64 CT examinations. Twelve patients had no pathological changes, in four, the middle ear was assessed before insertion of an implant, and in 11 before planned surgical procedures, a further 27 patients had radical surgery.

CT of the middle ear with 3D and VE options provides the operator with information on the spatial association between the VII^th nerve, inner ear and auditory ossicles. It also allows for presentation of the middle ear structures in a manner similar to a natural anatomical view. VECT and 3D CT are valuable complementary diagnostic procedures making use of CT technique, ensuring a more efficient tool for diagnostics of middle ear before and after surgical procedures.

Keywords

CT 3D reconstruction virtual endoscopy middle ear

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References

Frankenthaler

Moharir

: Virtual otoscopy. Otolaryngol Clin North Am 31 (2): 383–392, 1998.

Hamamoto

Murakami

: Topographical relationships among the facial nerve, chorda tympani nerve and round window with special reference to the approach route for cochlear implant surgery. Clin Anat 13: 251–256, 2000.

Himi

Kataura

: Three-dimensional imaging of the temporal bone using a helical CT scan and its application in patients with cochlear implantation. ORL J 58 (6): 298–300, 1996.

Neri

Caramella

: Virtual endoscopy of the middle ear. Eur Radiol 11: 41–49, 2001.

Parlier-Cuau

Champsaur

: High-resolution computed tomographic study of the retrotympanum. Anatomical correlations. Surg Radiol Anat 2: 215–220, 1998.

Pototschnig

Veolklein

: Virtual endoscopy in otorhinolaryngology by postprocessing of helical computed tomography. Otolaryngol Head Neck Surg 119: 536–539, 1998.

Schubert

Sartor

: Three-dimensional computed display of otosurgical operation sites by spiral CT. Neuroradiology 38 (7): 663–668, 1996.

Seemann

: Evaluation of the middle and inner ear structures: comparison of hybrid rendering, virtual endoscopy and axial 2D source images. Eur Radiol 9:1851–1858, 1998.

Seeman

: Hybrid rendering and virtual endoscopy of the auditory and vestibular system. Eur J Med Res 3 (11): 515–522, 1998.

10.

Thomassin

Inedjian

: Otoendoscopy: application in the middle ear surgery. Rev Laryngol Otol Rhino 111:475–477, 1990.

11.

Vannier

Marsh

: Three-dimensional imaging, surgical planning, and image-guided therapy. Radiol Clin North Am 34: 545–563, 1996.

Virtual Endoscopy CT and Three-Dimensional Reconstruction CT

Abstract

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References