Get the url of attachments from the database ?

I used the following code to get the images posted in a post

$current_id = get_the_ID();
$rows = $wpdb->get_results("select guid from $wpdb->posts where post_parent = $current_id");

foreach ($rows as $row) {

?>

<a>guid; ?>" data-titan-lightbox="on" data-titan-group="<?php the_ID() ?>"  style="display: none"><img src="<?php echo $row->guid; ?>" alt="Caption" class="Thumbnail thumbnail " width="228" height="160"></a>

<?php

but this code give the images path with the folder containing the images

How can i get only the image from this loop ?