Magento: How to get the creditmemo by order item quote id -

i have increment id of magento order , quote id of order item (i not mean order item id) , want creditmemos contains corresponding creditmemo item order item.

if use creditmemo model in magento can use getorderitem() order item , on can use getorder() order. order model in magento not have getcreditmemoitems().

is there better way instead of iterating on getcreditmemoscollection() of order , on each creditmemo item?

use this:

$collection = mage::getresourcemodel('sales/order_creditmemo_collection')         ->addattributetofilter('order_id', array('eq' => $order->getentityid()))         ->addattributetoselect('*');