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MRI Helps Create Personalized Brain Temperature Maps

By MedImaging International staff writers
Posted on 20 May 2021
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Image: Metabolic heat (a), cerebral blood flow (b) and model-predicted brain temperature (c) in three volunteers (Photo courtesy of Emory University)
Image: Metabolic heat (a), cerebral blood flow (b) and model-predicted brain temperature (c) in three volunteers (Photo courtesy of Emory University)
A new study shows how data from magnetic resonance imaging (MRI) of brain tissue and vessel structure can facilitate personalized brain temperature predictions.

Developed by researchers at the Georgia Institute of Technology (Georgia Tech; Atlanta, GA, USA) and Emory University (Atlanta, GA, USA), the biophysical model can be used to generate 3D thermal distribution maps using whole brain MRI-based thermometry data. The model relies on two fundamental physical principles, conservation of energy and conservation of mass, to predict how heat is generated through metabolism and dissipated via blood flow throughout the brain, via conduction, convection, and advection.

For the study, the researchers first collected structural MRI brain images from three healthy volunteers. After several hours of data analysis and simulations, the biophysical model computed the distribution of brain temperature in the brain, visualized as three-dimensional (3D) maps. To validate the model, the researchers then collected temperature measurements using whole-brain MRI thermometry, compared these measurements to the model’s predictions, and found that they agreed. The study was published on April 15, 2021, in Communications Physics.

“Brain temperature varies throughout the brain as blood flow and metabolic demands change. This means that you cannot assign a single temperature to a brain,” said co-senior author Andrei Fedorov, PhD, of Georgia Tech. “All of the complexity [in the brain’s functioning] results in a very unique personal temperature map that actually tells us a lot about what may be happening to us, what may have happened in the past, or what may happen if we somehow perturb us as a human.”

Despite being only a fraction of the human body’s mass, the brain accounts for 20% of total oxygen consumption in resting conditions, which is used for neuronal metabolism, neural processes, and the functioning of glial, endothelial, and epithelial cells. All this energy is transformed into intense heat production. The brain is also exceptionally well vascularized, receiving 15–20% of total cardiac output, which also serves as the means to remove the heat continuously generated through brain metabolism and neurological function.

Related Links:
Georgia Institute of Technology
Emory University


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99 (33.140182495117): SELECT show_live FROM jos_com_show_setting LIMIT 1
100 (31.948089599609): SELECT show_live FROM jos_com_show_setting LIMIT 1
101 (32.901763916016): SELECT show_live FROM jos_com_show_setting LIMIT 1
102 (33.140182495117): SELECT show_live FROM jos_com_show_setting LIMIT 1
103 (32.901763916016): SELECT show_live FROM jos_com_show_setting LIMIT 1
104 (93.936920166016): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294788336 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294788336 AND published='1' LIMIT 1
105 (55.074691772461): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294788336 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294788336 AND published='1' LIMIT 1
106 (68.902969360352): 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=294788336 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
107 (66.041946411133): 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=294788336 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
108 (80.82389831543): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294788336 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294788336 AND published='1' LIMIT 1
109 (56.028366088867): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294788336 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294788336 AND published='1' LIMIT 1
110 (60.081481933594): 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=294788336 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
111 (568.86672973633): 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=294788336 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
112 (677.10876464844): 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 (447.98851013184): 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 (87.976455688477): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294788336 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294788336 AND published='1' LIMIT 1
115 (117.06352233887): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294788336 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294788336 AND published='1' LIMIT 1
116 (70.095062255859): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294788336 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294788336 AND published='1' LIMIT 1
117 (52.928924560547): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294788336 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294788336 AND published='1' LIMIT 1
118 (61.988830566406): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294788336 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294788336 AND published='1' LIMIT 1
119 (51.975250244141): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294788336 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294788336 AND published='1' LIMIT 1
120 (313.99726867676): SELECT * FROM trending_articles WHERE `journal_id` = 10 AND `timestamp` <= NOW() + INTERVAL 7 DAY ORDER BY `order`
121 (!!!!! 25947.093963623): 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
122 (109.19570922852): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294788336 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294788336 AND published='1' LIMIT 1
123 (70.095062255859): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294788336 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294788336 AND published='1' LIMIT 1
124 (483.03604125977): SELECT fid FROM jos_deeppockets WHERE cat=10 AND id=294788336 AND type='deeppockets_item' AND published='1' union SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294788336 AND type='deeppockets_item' AND published='1' LIMIT 1
125 (!!!!! 723792.07611084): ( 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 (83.92333984375): ( 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 (411.9873046875): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294800513 LIMIT 1
128 (44.822692871094): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294800513 LIMIT 1
129 (335.9317779541): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294800359 LIMIT 1
130 (41.961669921875): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294800359 LIMIT 1
131 (237.94174194336): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294800361 LIMIT 1
132 (39.100646972656): SELECT dp.id, dp.name, dp.title, dp.video, dp.video_source, dp.created FROM jos_deeppockets AS dp WHERE dp.id = 294800361 LIMIT 1
133 (472.06878662109): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294788336 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
134 (366.9261932373): SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294788336 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
135 (135.89859008789): SELECT name FROM jos_deeppockets WHERE id=212
136 (36.954879760742): SELECT name FROM jos_deeppockets WHERE id=212
137 (538.82598876953): 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((;)|($))' AND catid IN (0,110) ORDER BY publish_up ASC LIMIT 3
138 (522.13668823242): SELECT *, DATE_FORMAT(publish_up,'%d %b %Y') AS date_publish_up, DATE_FORMAT(publish_down,'%d %b %Y') AS date_publish_down FROM jos_events WHERE state=1 AND publish_up > NOW() and extra_info REGEXP '((;)|(^))212((;)|($))' AND catid IN (0,110) ORDER BY publish_up ASC LIMIT 3
139 (68.902969360352): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294788336 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294788336 AND published='1' LIMIT 1
140 (58.889389038086): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294788336 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294788336 AND published='1' LIMIT 1
141 (!!!!! 7213.1156921387): TRUNCATE TABLE jos_trademed_module
142 (99.897384643555): 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=294788336 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
143 (65.803527832031): 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=294788336 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
144 (379.08554077148): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294788336 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
145 (162.12463378906): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294788336 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
146 (67.949295043945): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294788336 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294788336 AND published='1' LIMIT 1
147 (52.928924560547): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294788336 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294788336 AND published='1' LIMIT 1
148 (!!!!! 1326.0841369629): 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
149 (63.896179199219): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294788336 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294788336 AND published='1' LIMIT 1
150 (53.882598876953): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294788336 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294788336 AND published='1' LIMIT 1
151 (41.961669921875): SELECT fid FROM jos_deeppockets WHERE cat=10 AND id=294788336 AND type='deeppockets_item' AND published='1' union SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294788336 AND type='deeppockets_item' AND published='1' LIMIT 1
152 (36.001205444336): 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)
153 (33.140182495117): 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)
154 (34.093856811523): SELECT livesite FROM jos_dp_categories WHERE id=10 AND published='1' LIMIT 1
155 (71.048736572266): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294788336 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294788336 AND published='1' LIMIT 1
156 (53.882598876953): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294788336 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294788336 AND published='1' LIMIT 1
157 (121.8318939209): select jos_twitters.link from jos_twitters where cat=10
158 (33.140182495117): select jos_facebook.link from jos_facebook where cat=10
159 (31.948089599609): select jos_google_plus.link from jos_google_plus where cat=10
160 (31.948089599609): select jos_linkedin.link from jos_linkedin where cat=10
161 (283.00285339355): update jos_bannersmanager_banner set impmade=impmade+1 where id in(14615,14202,14203)
162 (!!!!! 1323.938369751): insert into jos_banners_delta values (14615,'2025-05-01 14:33:18','3.148.247.50','view'),(14202,'2025-05-01 14:33:18','3.148.247.50','view'),(14203,'2025-05-01 14:33:18','3.148.247.50','view')