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New Medical Scanner Identifies Brain Damage in Stroke Patients at Lower Magnetic Fields

By MedImaging International staff writers
Posted on 13 Dec 2024

Researchers have developed a new type of medical scanner that can identify brain damage in stroke patients at lower magnetic fields than ever before. More...

The world’s first Field Cycling Imager (FCI), developed by a research team at the University of Aberdeen (Scotland, UK), is based on the principles of magnetic resonance imaging (MRI) but is capable of operating at ultra-low magnetic fields. This unique capability allows it to observe how diseases affect organs in ways that were previously not possible. Additionally, because the FCI is safer than current MRI scanners, it presents exciting opportunities for creating portable systems suitable for use in ambulances and other out-of-hospital environments. While traditional MRI scanners use strong magnetic fields and radio waves to generate detailed internal body images, the FCI’s design allows it to adjust the magnetic field strength during the scan.

The FCI can operate with magnetic fields as low as those of a refrigerator magnet while still producing high-quality images. The ability to vary the magnetic field makes the FCI similar to having multiple scanners in one, extracting more diverse and detailed information than traditional MRI systems. A study published in the journal Radiology shows that the stroke area resulting from a blocked blood vessel in the brain generates a consistently different signal from a normal brain at very low magnetic field strengths – a factor of 10,000 lower compared to traditional MRI and 100 times lower than other low field systems. The researchers are now planning the continuation of the study on stroke using the next design iteration of their field-cycling technology to bring its benefits to patients and health services worldwide.

“Our initial findings are very exciting, as they reflect the first step to producing a device that would be safe and small enough to put in an ambulance so that stroke patients can have a diagnosis and start treatment before they reach hospital,” said Professor Mary Joan MacLeod, Professor of Stroke Medicine. “We have also shown that the new scanner can also identify bleeds in the brain, and changes in the small blood vessels which might lead to dementia. We know that there are lots of other exciting potential applications for this technology in areas such as cancer and bone disease.”

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82 (32.901763916016): SELECT show_live FROM jos_com_show_setting LIMIT 1

83 (33.140182495117): SELECT show_live FROM jos_com_show_setting LIMIT 1

84 (32.901763916016): SELECT show_live FROM jos_com_show_setting LIMIT 1

85 (31.948089599609): SELECT show_live FROM jos_com_show_setting LIMIT 1

86 (36.954879760742): SELECT show_live FROM jos_com_show_setting LIMIT 1

87 (33.140182495117): SELECT show_live FROM jos_com_show_setting LIMIT 1

88 (32.901763916016): SELECT show_live FROM jos_com_show_setting LIMIT 1

89 (33.140182495117): SELECT show_live FROM jos_com_show_setting LIMIT 1

90 (33.855438232422): SELECT show_live FROM jos_com_show_setting LIMIT 1

91 (182.15179443359): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294803417 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294803417 AND published='1' LIMIT 1

92 (62.942504882812): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294803417 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294803417 AND published='1' LIMIT 1

93 (126.83868408203): 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=294803417 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1

94 (116.82510375977): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294803417 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294803417 AND published='1' LIMIT 1

95 (77.962875366211): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294803417 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294803417 AND published='1' LIMIT 1

96 (445.12748718262): 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=294803417 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1

97 (796.79489135742): 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

98 (591.03965759277): 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

99 (102.99682617188): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294803417 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294803417 AND published='1' LIMIT 1

100 (80.108642578125): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294803417 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294803417 AND published='1' LIMIT 1

101 (109.91096496582): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294803417 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294803417 AND published='1' LIMIT 1

102 (60.081481933594): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294803417 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294803417 AND published='1' LIMIT 1

103 (66.995620727539): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294803417 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294803417 AND published='1' LIMIT 1

104 (57.93571472168): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294803417 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294803417 AND published='1' LIMIT 1

105 (87.976455688477): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294803417 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294803417 AND published='1' LIMIT 1

106 (76.055526733398): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294803417 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294803417 AND published='1' LIMIT 1

107 (443.93539428711): SELECT * FROM trending_articles WHERE `journal_id` = 10 AND `timestamp` <= NOW() + INTERVAL 7 DAY ORDER BY `order`

108 (!!!!! 32222.986221313): 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

109 (688.07601928711): SELECT fid FROM jos_deeppockets WHERE cat=10 AND id=294803417 AND type='deeppockets_item' AND published='1' union SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294803417 AND type='deeppockets_item' AND published='1' LIMIT 1

110 (!!!!! 11174.201965332): ( 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

111 (!!!!! 3533.1249237061): ( 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

112 (601.05323791504): 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

113 (123.97766113281): 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

114 (336.1701965332): 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

115 (46.014785766602): 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

116 (38.862228393555): 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

117 (56.982040405273): 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

118 (304.9373626709): 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

119 (55.074691772461): 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

120 (750.06484985352): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294803417 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1

121 (343.08433532715): SELECT name FROM jos_deeppockets WHERE id=215

122 (47.922134399414): SELECT name FROM jos_deeppockets WHERE id=215

123 (763.1778717041): 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 '((;)|(^))215((;)|($))' AND catid IN (0,110) ORDER BY publish_up ASC LIMIT 3

124 (!!!!! 1199.0070343018): 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 '((;)|(^))215((;)|($))' AND catid IN (0,110) ORDER BY publish_up ASC LIMIT 3

125 (119.92454528809): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294803417 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294803417 AND published='1' LIMIT 1

126 (95.129013061523): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294803417 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294803417 AND published='1' LIMIT 1

127 (!!!!! 20925.998687744): TRUNCATE TABLE jos_trademed_module

128 (746.9654083252): 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=294803417 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1

129 (!!!!! 1378.059387207): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294803417 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1

130 (108.00361633301): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294803417 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1

131 (151.8726348877): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294803417 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294803417 AND published='1' LIMIT 1

132 (88.930130004883): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294803417 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294803417 AND published='1' LIMIT 1

133 (!!!!! 1930.9520721436): 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

134 (103.95050048828): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294803417 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294803417 AND published='1' LIMIT 1

135 (72.002410888672): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294803417 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294803417 AND published='1' LIMIT 1

136 (61.988830566406): SELECT fid FROM jos_deeppockets WHERE cat=10 AND id=294803417 AND type='deeppockets_item' AND published='1' union SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294803417 AND type='deeppockets_item' AND published='1' LIMIT 1

137 (48.87580871582): 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=215 or channel_id is null)

138 (47.922134399414): 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=215 or channel_id is null)

139 (53.882598876953): SELECT livesite FROM jos_dp_categories WHERE id=10 AND published='1' LIMIT 1

140 (101.80473327637): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294803417 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294803417 AND published='1' LIMIT 1

141 (74.863433837891): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294803417 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294803417 AND published='1' LIMIT 1

142 (189.78118896484): select jos_twitters.link from jos_twitters where cat=10

143 (47.922134399414): select jos_facebook.link from jos_facebook where cat=10

144 (46.014785766602): select jos_google_plus.link from jos_google_plus where cat=10

145 (42.915344238281): select jos_linkedin.link from jos_linkedin where cat=10

146 (412.94097900391): update jos_bannersmanager_banner set impmade=impmade+1 where id in(14202,14203)

147 (!!!!! 1600.980758667): insert into jos_banners_delta values (14202,'2025-08-01 22:22:05','216.73.216.210','view'),(14203,'2025-08-01 22:22:05','216.73.216.210','view')

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