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	<title>The Tarkio Valley Sloth Project &#187; computed tomography</title>
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	<description>A 12,000 year-old mystery in SW Iowa</description>
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		<title>Prototyping project photo essay</title>
		<link>http://slothcentral.com/archives/2232</link>
		<comments>http://slothcentral.com/archives/2232#comments</comments>
		<pubDate>Tue, 05 Jul 2011 15:02:47 +0000</pubDate>
		<dc:creator>Holmes</dc:creator>
				<category><![CDATA[computed tomography]]></category>

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		<description><![CDATA[Friday the  University published a photo essay in their on-line journal FYI about the rapid prototyping process we are using to duplicate bones on the Tarkio Valley Sloth Project. The prototypes (a.k.a. &#8220;casts&#8221;) are accurate within a millimeter and can be safely mailed to scientists who wish to examine the individual elements for their research. They will [...]]]></description>
			<content:encoded><![CDATA[<div style="DIRECTION: ltr"><img class="alignleft size-full wp-image-2233" style="margin: 5px 8px; border: black 1px solid;" title="Proto4" src="http://slothcentral.com/wp-content/uploads/2011/07/Proto4.jpg" alt="Proto4" width="194" height="129" />Friday the  University published a <a href="http://fyi.uiowa.edu/07/01/bone-scanning/" target="_blank">photo essay</a> in their on-line journal <em>FYI </em>about the rapid prototyping process we are using to duplicate bones on the Tarkio<a target="_blank"></a> Valley Sloth Project. The prototypes (a.k.a. &#8220;casts&#8221;) are accurate within a millimeter and can be safely mailed to scientists who wish to examine the individual elements for their research. They will also serve as substitute bones for traveling trunks to  schools and nature centers that we plan to make available in 2012.  The prototypes may also be the basis of a sloth exhibit in the Greater Shenandoah Historical Museum someday.</div>
<div style="DIRECTION: ltr"> </div>
<div style="DIRECTION: ltr">Many thanks to Tom Jorgensen at <em>FYI </em>for developing the piece, and of course Eric Hoffman and his I-CLIC staff,  Steve Struckman and the College of Engineering, the staff of the Museum of Natural History, and Tony Smith for his artistry. . . what a team!</div>
<div style="DIRECTION: ltr"> </div>
<div style="DIRECTION: ltr">Sloth On,</div>
<div style="DIRECTION: ltr">Holmes</div>
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		<title>New fossil CT scans</title>
		<link>http://slothcentral.com/archives/434</link>
		<comments>http://slothcentral.com/archives/434#comments</comments>
		<pubDate>Fri, 15 May 2009 16:35:48 +0000</pubDate>
		<dc:creator>David</dc:creator>
				<category><![CDATA[computed tomography]]></category>

		<guid isPermaLink="false">http://slothcentral.com/?p=434</guid>
		<description><![CDATA[ We&#8217;ll never be able to say enough about the amazing cooperation we&#8217;ve received from every University of Iowa department we&#8217;ve approached for help in analyzing the sloth fossils.  That&#8217;s especially true of the Iowa Comprehensive Lung Imaging Center (ICLIC), which has given us access to one of the most advanced x-ray computed tomography (CT) imaging [...]]]></description>
			<content:encoded><![CDATA[<p><a href="/images/claw1.jpg"></a><a class="tt-flickr tt-flickr-Square" title="youbing83" href="http://www.flickr.com/photos/slothproject/3516400418/"></a><a class="tt-flickr tt-flickr-Medium" title="ICLIC2009-71" href="http://www.flickr.com/photos/slothproject/3522663664/"> </a><img class="alignleft" style="margin: 5px; border: black 1px solid;" title="Holmes Semken (L), David Brenzel (R) " src="http://farm4.static.flickr.com/3598/3522663664_0df4da0c9c.jpg" alt="ICLIC2009-71" width="301" height="225" />We&#8217;ll never be able to say enough about the amazing cooperation we&#8217;ve received from every University of Iowa department we&#8217;ve approached for help in analyzing the sloth fossils.  That&#8217;s especially true of the <strong>Iowa Comprehensive Lung Imaging Center</strong> (ICLIC), which has given us access to one of the most advanced x-ray computed tomography (CT) imaging machines in the county to scan some of our sloth bones.  The Siemens high speed, high resolution, multi-slice scanner is one of the few in the country devoted entirely to human and animal research.  </p>
<p> </p>
<p><a class="tt-flickr tt-flickr-Square" title="radiology2" href="http://www.flickr.com/photos/slothproject/3516400196/"><img class="alignnone" style="margin: 3px; border: black 1px solid;" src="http://farm4.static.flickr.com/3614/3516400196_0e66e798c5_s.jpg" alt="radiology2" width="75" height="75" /></a><a class="tt-flickr tt-flickr-Square" title="radiology1" href="http://www.flickr.com/photos/slothproject/3515588943/"> <img class="alignnone" style="margin: 3px; border: black 1px solid;" src="http://farm4.static.flickr.com/3538/3515588943_f92289cb30_s.jpg" alt="radiology1" width="75" height="75" /></a><a class="tt-flickr tt-flickr-Square" title="radiology4" href="http://www.flickr.com/photos/slothproject/3515589019/"> <img class="alignnone" style="margin: 3px; border: black 1px solid;" src="http://farm4.static.flickr.com/3328/3515589019_e572ecd599_s.jpg" alt="radiology4" width="75" height="75" /></a><a class="tt-flickr tt-flickr-Square" title="radiology7" href="http://www.flickr.com/photos/slothproject/3516400366/"> <img class="alignnone" style="margin: 3px; border: black 1px solid;" src="http://farm4.static.flickr.com/3560/3516400366_0a2aeecf1d_s.jpg" alt="radiology7" width="75" height="75" /></a><a class="tt-flickr tt-flickr-Square" title="ICLIC2009-62" href="http://www.flickr.com/photos/slothproject/3522663540/"> <img class="alignnone" style="margin: 3px; border: black 1px solid;" src="http://farm4.static.flickr.com/3620/3522663540_0d90d31ea4_s.jpg" alt="ICLIC2009-62" width="75" height="75" /></a><a class="tt-flickr tt-flickr-Square" title="ICLIC2009-69" href="http://www.flickr.com/photos/slothproject/3522663610/"> <img class="alignnone" style="margin: 3px; border: black 1px solid;" src="http://farm4.static.flickr.com/3587/3522663610_4f24aac547_s.jpg" alt="ICLIC2009-69" width="75" height="75" /></a><a class="tt-flickr tt-flickr-Square" title="ICLIC 2009-58" href="http://www.flickr.com/photos/slothproject/3522663682/"> <img class="alignnone" style="margin: 3px; border: black 1px solid;" src="http://farm4.static.flickr.com/3595/3522663682_bfb5a7eaeb_s.jpg" alt="ICLIC 2009-58" width="75" height="75" /></a>  <a class="tt-flickr tt-flickr-Square" title="youbing86" href="http://www.flickr.com/photos/slothproject/3516400466/"><img class="alignnone" style="margin: 3px; border: black 1px solid;" src="http://farm4.static.flickr.com/3602/3516400466_bd2f28331c_s.jpg" alt="youbing86" width="75" height="75" /></a> <a class="tt-flickr tt-flickr-Square" title="anterior_scapula, " href="http://www.flickr.com/photos/slothproject/3515588259/"><img class="alignnone" style="margin: 3px; border: black 1px solid;" src="http://farm4.static.flickr.com/3395/3515588259_259fe008cd_s.jpg" alt="anterior_scapula, " width="75" height="75" /></a> <a class="tt-flickr tt-flickr-Square" title="youbing83" href="http://www.flickr.com/photos/slothproject/3516400418/"><img class="alignnone" style="margin: 3px; border: black 1px solid;" src="http://farm4.static.flickr.com/3573/3516400418_78eaaf6026_s.jpg" alt="youbing83" width="75" height="75" /></a></p>
<p>Thanks especially to Eric Hoffman, Ph.D., Professor of Radiology, Physiology, and Biomedical Engineering (<a href="http://radiology.uiowa.edu/news/hoffman_video_ieee.htm" target="_self">video</a>);  <a href="http://biomed-imaging.uiowa.edu/profiles/hoffman.html" target="_self">Joseph Reinhardt</a>, Ph.D., Associate Professor, Department of Biomedical Engineering; Jerred Sieren and Lisa Hudson, research assistants in the CT lab; and Youbing Yin, a graduate student in the Mechanical Engineering program for processing the CT-scan files.</p>
<p>ICLIC, directed by Dr. Eric Hoffman, was <a href="http://dpi.radiology.uiowa.edu/iclic/grand/pictures/pict.html" target="_self">created in 2004</a> with the help of a National Institute of Health (NIH) grant.  It&#8217;s a joint venture of the UI Carver College of Medicine including the departments of Radiology, Medicine, Surgery, Pathology, and Anesthesiology; and the College of Engineering including Biomedical Enginering, Electrical and Computer Engineering, and Mechanical Engineering; along with  Siemens Medical Systems.  The research team also includes investigators at the Mayo Clinic, John Hopkins University, Marquette University and the University of Texas, as well as the University of Aukland in New Zealand and the University of Erlangen in Germany.  The partners are using CT technology to build a dynamic model of normal human lung anatomy and function to use as a basis for  understanding and diagnosing various human lung pathologies</p>
<p>The CT technology and software being used to analyze the inner structure of human lungs has provided us with amazing pictures of the details of the interior of various sloth bones and may help us understand the origin and impact of the serious wounds that have been found on both the &#8220;toddler&#8221; and the adult.  The pictures below, slices of various bones as indicated,  show the exceptional state of preservation.  Lots more images in Flickr. . . . . Dave</p>
<p><a class="tt-flickr tt-flickr-Medium" title="tail_vertebrae1" href="http://www.flickr.com/photos/slothproject/3485965113/"></a>  <a class="tt-flickr tt-flickr-Medium" title="tail_vertebrae" href="http://www.flickr.com/photos/slothproject/3486779328/"><img class="alignnone" style="MARGIN: 6px" src="http://farm4.static.flickr.com/3566/3486779328_c858aa3be0.jpg" alt="tail_vertebrae" width="359" height="220" /></a>  <a class="tt-flickr tt-flickr-Medium" title="digit3_1" href="http://www.flickr.com/photos/slothproject/3485965041/"></a><a class="tt-flickr tt-flickr-Medium" title="digit2_1" href="http://www.flickr.com/photos/slothproject/3485964953/"></a><a class="tt-flickr tt-flickr-Medium" title="digit2" href="http://www.flickr.com/photos/slothproject/3486779198/"><img class="alignnone" style="margin: 6px;" src="http://farm4.static.flickr.com/3412/3486779198_8e4f350606.jpg" alt="digit2" width="377" height="194" /></a> <a class="tt-flickr tt-flickr-Medium" title="claw1" href="http://www.flickr.com/photos/slothproject/3486779168/"></a><a class="tt-flickr tt-flickr-Medium" title="claw" href="http://www.flickr.com/photos/slothproject/3486779134/"><img class="alignnone" style="MARGIN: 6px" src="http://farm4.static.flickr.com/3394/3486779134_102ccaf8eb.jpg" alt="claw" width="376" height="243" /></a> <a class="tt-flickr tt-flickr-Medium" title="ankle1" href="http://www.flickr.com/photos/slothproject/3485964829/"></a></p>
<p><a href="/images/claw.jpg"></a> </p>
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<p><a href="/images/claw1.jpg"></a></p>
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