Frontal horn width to intercaudate distance ratio
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Frontal horn width to intercaudate distance ratio (FH/CC) is used in assessing patients with suspected Huntington disease.
On the same axial plane obtained on the ACPC (anterior commissure and posterior commissure) line, the ratio between the distance between the caudate heads (where they are closest) and the lateral margins of the frontal horns is obtained.
The normal mean FH/CC ratio range is 2.2 to 2.6. As the caudate heads reduce in volume the CC distance will approach the FH distance, and the ratio will approach 1.
An alternative measurement is the intercaudate distance to inner table width ratio (CC/IT).
-<p><strong>Frontal horn width to intercaudate distance ratio (FH/CC)</strong> is used in assessing patients with suspected <a href="/articles/huntington-disease">Huntington disease</a>. </p><p>On the same axial plane obtained on the ACPC (anterior commissure and posterior commissure) line, the ratio between the distance between the caudate heads (where they are closest) and the lateral margins of the frontal horns is obtained. </p><p>The normal mean FH/CC ratio range is 2.2 to 2.6. As the caudate heads reduce in volume the CC distance will approach the FH distance, and the ratio will approach 1.</p><p>An alternative measurement is the <a href="/articles/intercaudate-distance-to-inner-table-width-ratio">intercaudate distance to inner table width ratio (CC/IT)</a>.</p>- +<p><strong>Frontal horn width to intercaudate distance ratio (FH/CC)</strong> is used in assessing patients with suspected <a href="/articles/huntington-disease">Huntington disease</a>. </p><p>On the same axial plane obtained on the ACPC (anterior commissure and posterior commissure) line, the ratio between the distance between the caudate heads (where they are closest) and the lateral margins of the frontal horns is obtained. </p><p>The normal mean FH/CC ratio range is 2.2 to 2.6. As the caudate heads reduce in volume the CC distance will approach the FH distance, and the ratio will approach <sup>1</sup>.</p><p>An alternative measurement is <a href="/articles/intercaudate-distance-to-inner-table-width-ratio">intercaudate distance to inner table width ratio (CC/IT)</a>.</p>
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