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MR Spectroscopy Shows Differences in Brains of Preterm Infants

By MedImaging International staff writers
Posted on 10 Dec 2013
Image:  Anatomy (MRI) of the brain—15 weeks premature (Photo courtesy of RSNA).
Image: Anatomy (MRI) of the brain—15 weeks premature (Photo courtesy of RSNA).
Image: Anatomy (MRI) full-term brain (Photo courtesy of RSNA).
Image: Anatomy (MRI) full-term brain (Photo courtesy of RSNA).
Photo:  Anatomy (MRI) of the brain—one year (Photo courtesy of RSNA).
Photo: Anatomy (MRI) of the brain—one year (Photo courtesy of RSNA).
Premature birth appears to induce developmental mechanisms in the brain’s white matter that could put children at higher risk of problems later in life, according to recent imaging research.

Preterm infants—typically those born 23 to 36 weeks after conception, as opposed to the normal 37- to 42-week gestation—face an increased risk of behavioral problems, ranging from impulsiveness and distractibility to more serious conditions like autism and attention deficit hyperactivity disorder (ADHD).

The study’s findings were presented at the annual meeting of the Radiological Society of North America (RSNA), held in Chicago (IL, USA), held December 1–6, 2013. “In the United States, we have approximately 500,000 preterm births a year,” said Stefan Blüml, PhD, director of the New Imaging Technology Lab at Children’s Hospital Los Angeles and associate professor of research radiology at the University of Southern California in Los Angeles (USA). “About 60,000 of these babies are at high risk for significant long-term problems, which means that this is a significant problem with enormous costs.”

Dr. Blüml and colleagues have been studying preterm infants to learn more about how premature birth might cause changes in brain structure that may be linked with clinical difficulties evidenced later in life. Much of the focus has been on the brain’s white matter, which transmits signals and enables communication between different parts of the brain. While some white matter damage is readily apparent on structural magnetic resonance imaging (MRI), Dr. Blüml's group has been using MR spectroscopy (MRS) to see differences on a microscopic level.

In this study, the researchers compared the concentrations of certain chemicals associated with mature white matter and gray matter in 51 full-term and 30 preterm infants. The study group had normal structural MRI findings, but MRS scans showed significant differences in the biochemical maturation of white matter between the term and preterm infants, suggesting a disruption in the timing and synchronization of white and gray matter maturation. Gray matter is the part of the brain that processes and transmits signals. “The road map of brain development is disturbed in these premature kids,” Dr. Blüml said. “White matter development had an early start and was ‘out of sync’ with gray matter development.”

This false beginning in white matter development is triggered by events after birth, according to Dr. Blüml. “This timeline of events might be disturbed in premature kids because there are significant physiological switches at birth, as well as stimulatory events, that happen irrespective of gestational maturity of the newborn,” he said. “The most apparent change is the amount of oxygen that is carried by the blood.”

Dr. Blüml reported that the amount of oxygen delivered to the fetus’s developing brain in utero is quite low, and human brains have evolved to enhance development in that low oxygen environment. However, when infants are born, they are quickly exposed to a much more oxygen-rich environment. “This change may be something premature brains are not ready for,” he said.

Whereas this change may cause irregularities in white matter development, Dr. Blüml noted that the newborn brain has a remarkable capacity to adapt or even “rewire” itself—a concept known as plasticity. Plasticity not only allows the brain to control new skills over the course of development, such as learning to walk and read, but also can make the brains of preterm babies and young children more responsive to therapeutic interventions, particularly if any abnormalities are identified early. “Our research points to the need to better understand the impact of prematurity on the timing of critical maturational processes and to develop therapies aimed at regulating brain development,” Dr. Blüml said.

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88 (34.093856811523): SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294749591 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
89 (41.007995605469): 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 (70.095062255859): SELECT show_live FROM jos_com_show_setting LIMIT 1
91 (40.054321289062): SELECT show_live FROM jos_com_show_setting LIMIT 1
92 (36.001205444336): SELECT show_live FROM jos_com_show_setting LIMIT 1
93 (36.954879760742): SELECT show_live FROM jos_com_show_setting LIMIT 1
94 (59.127807617188): SELECT show_live FROM jos_com_show_setting LIMIT 1
95 (41.007995605469): SELECT show_live FROM jos_com_show_setting LIMIT 1
96 (53.882598876953): SELECT show_live FROM jos_com_show_setting LIMIT 1
97 (38.862228393555): SELECT show_live FROM jos_com_show_setting LIMIT 1
98 (37.193298339844): SELECT show_live FROM jos_com_show_setting LIMIT 1
99 (35.04753112793): SELECT show_live FROM jos_com_show_setting LIMIT 1
100 (34.093856811523): SELECT show_live FROM jos_com_show_setting LIMIT 1
101 (35.04753112793): SELECT show_live FROM jos_com_show_setting LIMIT 1
102 (36.954879760742): SELECT show_live FROM jos_com_show_setting LIMIT 1
103 (36.954879760742): SELECT show_live FROM jos_com_show_setting LIMIT 1
104 (82.015991210938): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749591 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749591 AND published='1' LIMIT 1
105 (52.928924560547): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749591 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749591 AND published='1' LIMIT 1
106 (82.969665527344): 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=294749591 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
107 (69.856643676758): 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=294749591 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
108 (78.916549682617): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749591 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749591 AND published='1' LIMIT 1
109 (43.153762817383): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749591 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749591 AND published='1' LIMIT 1
110 (56.028366088867): 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=294749591 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
111 (508.06999206543): 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=294749591 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
112 (754.11796569824): 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 (568.86672973633): 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 (171.18453979492): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749591 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749591 AND published='1' LIMIT 1
115 (70.095062255859): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749591 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749591 AND published='1' LIMIT 1
116 (82.015991210938): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749591 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749591 AND published='1' LIMIT 1
117 (51.975250244141): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749591 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749591 AND published='1' LIMIT 1
118 (51.975250244141): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749591 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749591 AND published='1' LIMIT 1
119 (38.14697265625): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749591 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749591 AND published='1' LIMIT 1
120 (46.014785766602): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749591 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749591 AND published='1' LIMIT 1
121 (37.908554077148): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749591 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749591 AND published='1' LIMIT 1
122 (262.97569274902): SELECT * FROM trending_articles WHERE `journal_id` = 10 AND `timestamp` <= NOW() + INTERVAL 7 DAY ORDER BY `order`
123 (!!!!! 21497.964859009): 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 (604.86793518066): SELECT fid FROM jos_deeppockets WHERE cat=10 AND id=294749591 AND type='deeppockets_item' AND published='1' union SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294749591 AND type='deeppockets_item' AND published='1' LIMIT 1
125 (!!!!! 8110.0463867188): ( 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 (79.870223999023): ( 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 (366.9261932373): 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 (55.074691772461): 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 (293.97010803223): 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 (42.915344238281): 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 (221.01402282715): 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 (43.869018554688): 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 (253.20053100586): 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 (87.02278137207): 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 (463.00888061523): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749591 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
136 (293.01643371582): SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749591 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
137 (211.00044250488): SELECT name FROM jos_deeppockets WHERE id=212
138 (41.961669921875): SELECT name FROM jos_deeppockets WHERE id=212
139 (638.00811767578): 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((;)|($))' AND catid IN (0,110) ORDER BY publish_up ASC LIMIT 3
140 (472.06878662109): SELECT *, DATE_FORMAT(publish_up,'%d %b %Y') AS date_publish_up, DATE_FORMAT(publish_down,'%d %b %Y') AS date_publish_down FROM jos_events WHERE state=1 AND publish_up > NOW() and extra_info REGEXP '((;)|(^))212((;)|($))' AND catid IN (0,110) ORDER BY publish_up ASC LIMIT 3
141 (88.214874267578): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749591 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749591 AND published='1' LIMIT 1
142 (49.829483032227): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749591 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749591 AND published='1' LIMIT 1
143 (!!!!! 11435.985565186): TRUNCATE TABLE jos_trademed_module
144 (100.13580322266): 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=294749591 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
145 (56.982040405273): 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=294749591 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
146 (!!!!! 1050.9490966797): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749591 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
147 (83.208084106445): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749591 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
148 (97.990036010742): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749591 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749591 AND published='1' LIMIT 1
149 (66.995620727539): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749591 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749591 AND published='1' LIMIT 1
150 (!!!!! 1206.8748474121): 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 (61.988830566406): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749591 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749591 AND published='1' LIMIT 1
152 (42.915344238281): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749591 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749591 AND published='1' LIMIT 1
153 (43.153762817383): SELECT fid FROM jos_deeppockets WHERE cat=10 AND id=294749591 AND type='deeppockets_item' AND published='1' union SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294749591 AND type='deeppockets_item' AND published='1' LIMIT 1
154 (416.99409484863): 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 (40.054321289062): 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 (32.901763916016): SELECT livesite FROM jos_dp_categories WHERE id=10 AND published='1' LIMIT 1
157 (212.9077911377): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749591 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749591 AND published='1' LIMIT 1
158 (72.956085205078): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749591 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749591 AND published='1' LIMIT 1
159 (154.01840209961): select jos_twitters.link from jos_twitters where cat=10
160 (30.040740966797): select jos_facebook.link from jos_facebook where cat=10
161 (41.007995605469): select jos_google_plus.link from jos_google_plus where cat=10
162 (36.954879760742): select jos_linkedin.link from jos_linkedin where cat=10
163 (366.9261932373): update jos_bannersmanager_banner set impmade=impmade+1 where id in(14615,14202,14203)
164 (!!!!! 1498.9376068115): insert into jos_banners_delta values (14615,'2025-06-24 22:50:21','216.73.216.120','view'),(14202,'2025-06-24 22:50:21','216.73.216.120','view'),(14203,'2025-06-24 22:50:21','216.73.216.120','view')