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Diffusion Tensor Tractography MR Neuroimaging Protocol Detects Delays in Premature Babies

By MedImaging International staff writers
Posted on 03 Feb 2014
Image: Diffusion MRI - Nerve fiber bundles in a newborn infant's brain. The red tracks are left-right fibers; the green tracks are anterior-posterior fibers; the blue tracks are superior-inferior (top-bottom) fibers (Photo courtesy of dHCP).
Image: Diffusion MRI - Nerve fiber bundles in a newborn infant's brain. The red tracks are left-right fibers; the green tracks are anterior-posterior fibers; the blue tracks are superior-inferior (top-bottom) fibers (Photo courtesy of dHCP).
Infants born prematurely are at elevated risk for cognitive, motor, and behavioral deficits, the severity of which was, until recently, nearly impossible to effectively predict in the neonatal period with conventional brain-imaging technology. However, physicians may now be able to identify the most at risk for deficits premature infants as well as the type of deficit, enabling them to rapidly begin early neuroprotective treatments by using very effective three-dimensional (3D) magnetic resonance imaging (3D MRI) imaging techniques.

The imaging technique also helps in the early and repeatable evaluation of these therapies to help clinicians and researchers determine whether neuroprotective treatments are effective in a couple of weeks, rather than the two to five years earlier required. The researchers, specialists in brain imaging and anatomy, developed a protocol for using the special imaging technique to study the development of 10 brain tracts in these tiny patients, and published online January 24, 2014, in the journal PLOS ONE. Colorful 3D images of each tract revealed the connections of the segments to different parts of the brain or the spinal cord. Each of the 10 tracts is important for certain functions and abilities, such as language, movement, or vision.

“Developing a reliable and reproducible methodology for studying the premature brain was crucial in order for us to get to the next step: assessing neuroprotective therapies,” said Nehal A. Parikh, DO, lead investigator in the Center for Perinatal Research at Nationwide Children’s Hospital (Columbus, OH, USA), and senior author of the study. “Now that we have this protocol, we can improve the standard of care and evaluate efforts to promote brain health within 8 to 12 weeks of beginning the interventions. That way, we can quickly see what really works.”

The study tested a detailed approach to measuring brain structure in extremely low birth weight infants at term-equivalent age by comparing their diffusion tensor tractography (DTT) scans to those of healthy, full-term newborns. DTT is a customized MRI technique that generates3D images and is able to detect the brain’s structure and more subtle injuries than earlier forms of the technology.

The researchers are the first to validate disparities in the fibrous structure of the 10 tracts between healthy, full-term infant brains and those of premature babies. Even though the imaging technology is typically used in adults, the small head size and lack of benchmark measurements in healthy infants meant that the use of DTT in premature infants was not investigated earlier. With the detailed technique developed by Dr. Parikh’s team, the images can now be reproducibly processed and reliably interpreted.

“This protocol opens the field to far greater use of the methodology for targeting and assessing therapies in these infants,” said Dr. Parikh, who also is an associate professor of pediatrics at The Ohio State University College of Medicine (Columbus, USA). “We already have studies underway using our DTT segmentation methodology to measure the effectiveness of early neuroprotective interventions, such as the use of breast milk or skin-to-skin contact while premature babies are in intensive care.”

As imaging technology continues to evolve, the aim of targeted therapies based on the certain region of the brain with a delay or injury will come to fruition, Dr. Parikh predicted. If an infant’s DTT scan, for instance, indicates an under-developed corticospinal tract, physicians could immediately begin proactive physical therapies with the baby instead of waiting until the delay manifests itself. A repeat DTT scan a few months after the start of the therapy could then identify whether the therapy is effectively improving the structure of that brain tract.

“Because cognitive and behavioral deficits cannot be diagnosed until school age, there is an urgent need for robust early prognostic biomarkers,” concluded Dr. Parikh. “Our work is an important step in this direction and will facilitate early testing of neuroprotective interventions.”

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87 (313.04359436035): SELECT fid FROM jos_deeppockets WHERE cat=10 AND id=294750515 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
88 (192.88063049316): SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294750515 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
89 (!!!!! 3273.9639282227): SELECT id,name,title FROM jos_deeppockets WHERE cat=10 AND TYPE='file_folder' AND published=1 AND id != 294743300 AND id != 294743301 AND id != 294743302 AND id != 294743303 AND id != 294743304 AND id != 294743305 AND id != 294743306 AND id != 294743307 AND id != 294743308 AND id != 294743309 AND id != 294743310 AND metakey != 'aacc' ORDER BY `ordering`
90 (!!!!! 3875.0171661377): SELECT show_live FROM jos_com_show_setting LIMIT 1
91 (53.882598876953): SELECT show_live FROM jos_com_show_setting LIMIT 1
92 (29.802322387695): SELECT show_live FROM jos_com_show_setting LIMIT 1
93 (27.894973754883): SELECT show_live FROM jos_com_show_setting LIMIT 1
94 (35.04753112793): SELECT show_live FROM jos_com_show_setting LIMIT 1
95 (27.894973754883): SELECT show_live FROM jos_com_show_setting LIMIT 1
96 (27.894973754883): SELECT show_live FROM jos_com_show_setting LIMIT 1
97 (27.894973754883): SELECT show_live FROM jos_com_show_setting LIMIT 1
98 (26.941299438477): SELECT show_live FROM jos_com_show_setting LIMIT 1
99 (26.941299438477): SELECT show_live FROM jos_com_show_setting LIMIT 1
100 (27.179718017578): SELECT show_live FROM jos_com_show_setting LIMIT 1
101 (27.179718017578): SELECT show_live FROM jos_com_show_setting LIMIT 1
102 (26.941299438477): SELECT show_live FROM jos_com_show_setting LIMIT 1
103 (27.179718017578): SELECT show_live FROM jos_com_show_setting LIMIT 1
104 (67.949295043945): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294750515 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294750515 AND published='1' LIMIT 1
105 (53.882598876953): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294750515 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294750515 AND published='1' LIMIT 1
106 (51.975250244141): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.cat=10 AND dp.id=294750515 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
107 (47.922134399414): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets_archive as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.cat=10 AND dp.id=294750515 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
108 (!!!!! 1899.0039825439): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294750515 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294750515 AND published='1' LIMIT 1
109 (60.081481933594): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294750515 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294750515 AND published='1' LIMIT 1
110 (49.829483032227): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.id=294750515 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
111 (447.98851013184): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets_archive as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.id=294750515 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
112 (!!!!! 3784.8949432373): SELECT dp.name, dp.id, dp2.name as channel, ex.name as author_name, ex.specialization, ex.images FROM jos_deeppockets as dp LEFT JOIN jos_experts as ex ON ex.id = dp.author LEFT JOIN jos_deeppockets as dp2 ON dp2.id = dp.fid WHERE dp.author != 0 AND dp.cat = 10 AND dp.published = 1 AND ( (dp.fid = 294743300) OR (dp.fid = 294743301) OR (dp.fid = 294743302) OR (dp.fid = 294743303) OR (dp.fid = 294743304) OR (dp.fid = 294743305) OR (dp.fid = 294743306) OR (dp.fid = 294743307) OR (dp.fid = 294743308) OR (dp.fid = 294743309) OR (dp.fid = 294743310) ) ORDER BY RAND() LIMIT 1
113 (!!!!! 3602.9815673828): SELECT dp.name, dp.id, dp2.name as channel, ex.name as author_name, ex.specialization, ex.images FROM jos_deeppockets as dp LEFT JOIN jos_experts as ex ON ex.id = dp.author LEFT JOIN jos_deeppockets as dp2 ON dp2.id = dp.fid WHERE dp.author != 0 AND dp.cat = 10 AND dp.published = 1 AND ( (dp.fid = 294743300) OR (dp.fid = 294743301) OR (dp.fid = 294743302) OR (dp.fid = 294743303) OR (dp.fid = 294743304) OR (dp.fid = 294743305) OR (dp.fid = 294743306) OR (dp.fid = 294743307) OR (dp.fid = 294743308) OR (dp.fid = 294743309) OR (dp.fid = 294743310) ) ORDER BY RAND() LIMIT 1
114 (215.05355834961): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294750515 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294750515 AND published='1' LIMIT 1
115 (73.909759521484): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294750515 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294750515 AND published='1' LIMIT 1
116 (62.942504882812): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294750515 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294750515 AND published='1' LIMIT 1
117 (37.908554077148): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294750515 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294750515 AND published='1' LIMIT 1
118 (54.121017456055): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294750515 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294750515 AND published='1' LIMIT 1
119 (38.862228393555): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294750515 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294750515 AND published='1' LIMIT 1
120 (347.13745117188): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294750515 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294750515 AND published='1' LIMIT 1
121 (48.160552978516): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294750515 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294750515 AND published='1' LIMIT 1
122 (252.96211242676): SELECT * FROM trending_articles WHERE `journal_id` = 10 AND `timestamp` <= NOW() + INTERVAL 7 DAY ORDER BY `order`
123 (!!!!! 67586.898803711): SELECT * FROM jos_deeppockets WHERE jos_deeppockets.cat = 10 AND jos_deeppockets.type = 'deeppockets_item' AND jos_deeppockets.published = 1 AND jos_deeppockets.created + INTERVAL 14 DAY >= NOW() ORDER BY jos_deeppockets.hits DESC LIMIT 7
124 (387.19177246094): SELECT fid FROM jos_deeppockets WHERE cat=10 AND id=294750515 AND type='deeppockets_item' AND published='1' union SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294750515 AND type='deeppockets_item' AND published='1' LIMIT 1
125 (77.962875366211): ( SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.video != '' AND dp.video_source != '' AND dp.cat = 10 AND dp.published = 1 AND dp.type != 'deeppockets_item_link' ORDER BY created DESC LIMIT 3 ) UNION ( SELECT dpa.id, dpa.name, dpa.title, dpa.video, dpa.video_source, dpa.created FROM jos_deeppockets_archive AS dpa WHERE dpa.video != '' AND dpa.video_source != '' AND dpa.cat = 10 AND dpa.published = 1 AND dpa.type != 'deeppockets_item_link' ORDER BY created DESC LIMIT 3 ) ORDER BY created DESC LIMIT 3
126 (34.093856811523): ( SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.video != '' AND dp.video_source != '' AND dp.cat = 10 AND dp.published = 1 AND dp.type != 'deeppockets_item_link' ORDER BY created DESC LIMIT 3 ) UNION ( SELECT dpa.id, dpa.name, dpa.title, dpa.video, dpa.video_source, dpa.created FROM jos_deeppockets_archive AS dpa WHERE dpa.video != '' AND dpa.video_source != '' AND dpa.cat = 10 AND dpa.published = 1 AND dpa.type != 'deeppockets_item_link' ORDER BY created DESC LIMIT 3 ) ORDER BY created DESC LIMIT 3
127 (33.855438232422): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294803337 LIMIT 1
128 (29.087066650391): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294803337 LIMIT 1
129 (92.029571533203): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294803276 LIMIT 1
130 (32.901763916016): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294803276 LIMIT 1
131 (29.087066650391): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets_archive AS dp WHERE dp.id = 294803276 LIMIT 1
132 (34.093856811523): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets_archive AS dp WHERE dp.id = 294803276 LIMIT 1
133 (36.001205444336): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294802958 LIMIT 1
134 (27.894973754883): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294802958 LIMIT 1
135 (396.9669342041): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294750515 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
136 (289.9169921875): SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294750515 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
137 (41.007995605469): SELECT name FROM jos_deeppockets WHERE id=212
138 (26.941299438477): SELECT name FROM jos_deeppockets WHERE id=212
139 (617.02728271484): SELECT *, DATE_FORMAT(publish_up,'%d %b %Y') AS date_publish_up, DATE_FORMAT(publish_down,'%d %b %Y') AS date_publish_down FROM jos_events WHERE state=1 AND publish_up > NOW() and extra_info REGEXP '((;)|(^))212((;)|($))' AND catid IN (0,110) ORDER BY publish_up ASC LIMIT 3
140 (555.99212646484): SELECT *, DATE_FORMAT(publish_up,'%d %b %Y') AS date_publish_up, DATE_FORMAT(publish_down,'%d %b %Y') AS date_publish_down FROM jos_events WHERE state=1 AND publish_up > NOW() and extra_info REGEXP '((;)|(^))212((;)|($))' AND catid IN (0,110) ORDER BY publish_up ASC LIMIT 3
141 (170.94612121582): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294750515 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294750515 AND published='1' LIMIT 1
142 (62.942504882812): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294750515 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294750515 AND published='1' LIMIT 1
143 (!!!!! 4013.0615234375): TRUNCATE TABLE jos_trademed_module
144 (!!!!! 3034.1148376465): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.cat=10 AND dp.id=294750515 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
145 (88.930130004883): SELECT dp.*, ch.title as channel, exp.name as author_name, exp.specialization as author_specialization, exp.images as author_photo FROM jos_deeppockets_archive as dp LEFT JOIN jos_experts as exp ON exp.id = dp.author LEFT JOIN jos_deeppockets as ch ON dp.fid = ch.id WHERE 1=1 AND dp.cat=10 AND dp.id=294750515 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
146 (355.00526428223): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294750515 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
147 (144.95849609375): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294750515 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
148 (53.882598876953): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294750515 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294750515 AND published='1' LIMIT 1
149 (40.054321289062): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294750515 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294750515 AND published='1' LIMIT 1
150 (!!!!! 1699.9244689941): SELECT jos_item.* FROM jos_item INNER JOIN jos_number ON jos_item.numberID=jos_number.id WHERE 1=1 AND (jos_item.imgMini<>'') AND jos_item.type='L' AND jos_item.numberID= ( SELECT jos_number.id FROM jos_number WHERE jos_number.journalID IN (10) and jos_number.id in (select distinct jos_number.id from jos_number join jos_item on jos_item.numberid=jos_number.id where jos_item.type='P') ORDER BY (CONVERT(SUBSTRING(issue,1,2),SIGNED) + (CONVERT(SUBSTRING(issue,3,2),SIGNED)*100)) DESC LIMIT 0,1 ) ORDER BY RAND() DESC LIMIT 6
151 (57.93571472168): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294750515 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294750515 AND published='1' LIMIT 1
152 (44.107437133789): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294750515 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294750515 AND published='1' LIMIT 1
153 (32.901763916016): SELECT fid FROM jos_deeppockets WHERE cat=10 AND id=294750515 AND type='deeppockets_item' AND published='1' union SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294750515 AND type='deeppockets_item' AND published='1' LIMIT 1
154 (29.802322387695): select distinct links.* from jos_textlinks links join jos_textlinks_placement placement on links.id=placement.link_id where journal_id=(10) and (channel_id=212 or channel_id is null)
155 (25.98762512207): select distinct links.* from jos_textlinks links join jos_textlinks_placement placement on links.id=placement.link_id where journal_id=(10) and (channel_id=212 or channel_id is null)
156 (28.133392333984): SELECT livesite FROM jos_dp_categories WHERE id=10 AND published='1' LIMIT 1
157 (132.79914855957): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294750515 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294750515 AND published='1' LIMIT 1
158 (46.968460083008): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294750515 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294750515 AND published='1' LIMIT 1
159 (49.114227294922): select jos_twitters.link from jos_twitters where cat=10
160 (34.809112548828): select jos_facebook.link from jos_facebook where cat=10
161 (28.848648071289): select jos_google_plus.link from jos_google_plus where cat=10
162 (25.98762512207): select jos_linkedin.link from jos_linkedin where cat=10
163 (274.8966217041): update jos_bannersmanager_banner set impmade=impmade+1 where id in(14615,14202,14203)
164 (964.16473388672): insert into jos_banners_delta values (14615,'2025-06-24 10:45:21','216.73.216.120','view'),(14202,'2025-06-24 10:45:21','216.73.216.120','view'),(14203,'2025-06-24 10:45:21','216.73.216.120','view')