Get subcategories detail of parent category

Display subcategotri Detail of Parent categotris, Show Description of categotri  

<?php
$cat = Mage::getModel('catalog/category')->load(83);  // Category id
$subcats = $cat->getChildren();
echo '<ul>' ;
foreach(explode(',',$subcats) as $subCatid)
{ $i++;

  $_category = Mage::getModel('catalog/category')->load($subCatid);
  $catdesc = $_category->getDescription();   
  $catdesc1 = implode(' ', array_slice(explode(' ', $catdesc), 0, 100));   //get limit words in description

  if( $_category->getIsActive()) {?>
   <li>
       <div class="box-inner">
        <div class="art-thumb-left">
        <img src="<?php echo Mage::getBaseUrl('media').'catalog/category/'.$_category->getThumbnail()  ?>" width="200" height="200" />
        </div> //Get image of Category

        <div class="about-art-right">
                <h3><a href="<?php echo $_category->getURL();?>"><p><?php echo $_category->getName() ;?></a></h3> //Get Category Name
            
                <p>
                    <?php
                    if($catdesc1)
                    {
                        echo $catdesc1 . "...";
                    }
                    ?>
                </p>
            </div>
            </div>
  </li>
 <?php }
}
echo '</ul>' ;
?>