Temporal bone (modified Stenvers view)
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The modified Stenvers view is aan oblique radiographic projection used to demonstrate the petrous temporal bone, IAM and bony labyrinth. It is primarily used to assess electrode placement following the insertion of a cochlear implant. SpecificiallySpecifically it assesses the:
- integrity, positioning, and depth of insertion of the electrodes
- and is used as a baseline1
.
The central beam is positioned 45 degrees posteriorly and 12 degrees caudally.
It has succeeded the Stenvers view, which included more of the mastoid air cells.
In a normally positioned cochlear implant (see images), the electrode array should be medial to the cochleotomycochleostomy, which is approximated by a line drawn downward vertically through the superior semicircular canal2.
-<p>The <strong>modified Stenvers view</strong> is a oblique radiographic projection used to demonstrate the petrous temporal bone, IAM and bony labyrinth. It is primarily used to assess electrode placement following the insertion of a <a href="/articles/cochlear-implant">cochlear implant</a>. Specificially it assesses the:</p><ul>- +<p>The <strong>modified Stenvers view</strong> is an oblique radiographic projection used to demonstrate the <a title="Petrous temporal bone (PTB)" href="/articles/petrous-part-of-temporal-bone">petrous temporal bone</a>, <a title="Internal auditory meatus (IAM)" href="/articles/internal-acoustic-meatus-1">IAM</a> and <a title="Labyrinth of ethmoid" href="/articles/labyrinth-of-ethmoid">bony labyrinth</a>. It is primarily used to assess electrode placement following the insertion of a <a href="/articles/cochlear-implant">cochlear implant</a>. Specifically it assesses the:</p><ul>
-<li>and is used as a baseline<sup>1</sup>.</li>-</ul><p>The central beam is positioned 45 degrees posteriorly and 12 degrees caudally. </p><p>It has succeeded the <a href="/articles/stenvers-view">Stenvers view</a>, which included more of the mastoid air cells.</p><p>In a normally positioned cochlear implant (see images), the electrode array should be medial to the cochleotomy, which is approximated by a line drawn downward vertically through the superior semicircular canal<sup>2</sup>.</p><p> </p>- +<li>and is used as a baseline <sup>1</sup>
- +</li>
- +</ul><p>The central beam is positioned 45 degrees posteriorly and 12 degrees caudally. </p><p>It has succeeded the <a href="/articles/stenvers-view">Stenvers view</a>, which included more of the mastoid air cells.</p><p>In a normally positioned cochlear implant (see images), the electrode array should be medial to the <a title="cochleostomy" href="/articles/cochleostomy">cochleostomy</a>, which is approximated by a line drawn downward vertically through the superior semicircular canal <sup>2</sup>.</p>
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