I am pulling in a RSS feed that will have emergency crisis information that I want to appear only when the "title" node doesn't contain the word "normal". I would like it to be able to match "normal" and "NORMAL" or any interation of it "nORmaL". Is there a way to check this? Regular expression maybe? Here is what I have so far:

@using System.Xml.XPath;
@using System.Xml;
@using umbraco.MacroEngines;
@inherits umbraco.MacroEngines.DynamicNodeContext

@{
    //Fetch RSS XML
    XmlTextReader udBrudRSS = new XmlTextReader("http://www.getrave.com/rss/emporia/channel1");

    //Create new XML document
    XmlDocument doc = new XmlDocument();

    //Load in our remote XML into our XML document
    doc.Load(udBrudRSS);

    //Select our nodes we want with some xPath
    XmlNodeList rssItems = doc.SelectNodes("//item");

}
<ul class="rss-feed">
    @{ //For each item node we can then ouput what we want
        var i = 0;
        foreach (XmlNode node in rssItems)
        {
            if(@node["title"].InnerText != "normal" ) {
            <li>
                <a href="@node["link"].InnerText">@node["title"].InnerText</a>
                <p class="description">@Html.Raw(@node["description"].InnerText)</p>
                <div class="date">@Html.Raw(@node["pubDate"].InnerText)</div>

            </li>
                    }
                    i++;
            if (i == 5){ break; }
                    }


    }
</ul>