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Photoacoustic Mammoscope Identifies Breast Cancer Using Light and Ultrasound

By MedImaging International staff writers
Posted on 06 Nov 2013
Image: A schematic illustration of the imaging system and the ultrasound detector (Photo courtesy of Wenfeng Xia, Biomedical Photonic Imaging group, University of Twente).
Image: A schematic illustration of the imaging system and the ultrasound detector (Photo courtesy of Wenfeng Xia, Biomedical Photonic Imaging group, University of Twente).
Routine screening can increase women’s chances of breast cancer survival by identifying the disease early and being able to treat it at this critical stage. A team of Dutch researchers developed a prototype of a new imaging tool that may soon help to detect breast cancer early, when it is at its most treatable stage.

The new device, called a photoacoustic mammoscope, if effective would become a completely new strategy to image the breast and detecting cancer. In the place of X-rays, which are used in conventional mammography, the photoacoustic breast mammoscope uses a combination of ultrasound and infrared light to create a three-dimensional (3D) map of the breast. The researchers, from the University of Twente (Enschede, The Netherlands), published details of their device in an article published October 23, 2013, in The Optical Society’s (OSA) open-access journal Biomedical Optics Express.

In the new technique, infrared light is delivered in billionth-of-a-second pulses to tissue, where it is scattered and absorbed. The high absorption of blood increases the temperature of blood vessels slightly, and this causes them to undergo a slight but rapid expansion. While indiscernible to the patient, this expansion generates identifiable ultrasound waves that are used to form a 3D map of the breast vasculature. Because cancer tumors have more blood vessels than the neighboring tissue, they are discernible in this image.

Currently the resolution of the images is not as fine as what can be captured with existing breast imaging techniques such X-ray mammography and magnetic resonance imaging (MRI). In future versions, Dr. Srirang Manohar, an assistant professor at the University of Twente, who led the research, Wenfeng Xia, a graduate student at the University of Twente, who was the first author on the new study, and their colleagues expect to enhance the resolution as well as add the capability to image using several different wavelengths of light at once, which is expected to improve detectability.

The Twente researchers have evaluated their prototype in the laboratory using phantoms (objects made of gels and other materials that mimic human tissue). In 2012, in a small clinical trial they revealed that an earlier version of the technology could successfully image breast cancer in women.

Dr. Manohar and his colleagues added that if the instrument were marketed, it would probably cost less than MRI and X-ray mammography tests. “We feel that the cost could be brought down to be not much more expensive than an ultrasound machine when it goes to industry,” said Dr. Xia.

The next phase of the research, the investigators report, will be to plan for larger clinical trials. Several existing technologies are already extensively used for breast cancer screening and diagnosis, including mammography, MRI, and ultrasound. Before becoming regularly used, the photoacoustic mammoscope would have to be at least as effective as those other techniques in large, multicenter clinical trials. “We are developing a clinical prototype that improves various aspects of the current version of the device,” said Dr. Manohar. “The final prototype will be ready for first clinical testing next year.”

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87 (87.02278137207): SELECT fid FROM jos_deeppockets WHERE cat=10 AND id=294749021 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
88 (42.915344238281): SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294749021 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
89 (!!!!! 2874.8512268066): 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 (73.19450378418): SELECT show_live FROM jos_com_show_setting LIMIT 1
91 (33.140182495117): SELECT show_live FROM jos_com_show_setting LIMIT 1
92 (27.894973754883): SELECT show_live FROM jos_com_show_setting LIMIT 1
93 (29.087066650391): SELECT show_live FROM jos_com_show_setting LIMIT 1
94 (27.894973754883): SELECT show_live FROM jos_com_show_setting LIMIT 1
95 (979.90036010742): SELECT show_live FROM jos_com_show_setting LIMIT 1
96 (51.975250244141): SELECT show_live FROM jos_com_show_setting LIMIT 1
97 (29.087066650391): SELECT show_live FROM jos_com_show_setting LIMIT 1
98 (28.133392333984): SELECT show_live FROM jos_com_show_setting LIMIT 1
99 (33.140182495117): SELECT show_live FROM jos_com_show_setting LIMIT 1
100 (39.815902709961): SELECT show_live FROM jos_com_show_setting LIMIT 1
101 (35.04753112793): SELECT show_live FROM jos_com_show_setting LIMIT 1
102 (29.802322387695): SELECT show_live FROM jos_com_show_setting LIMIT 1
103 (37.908554077148): SELECT show_live FROM jos_com_show_setting LIMIT 1
104 (!!!!! 3101.110458374): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749021 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749021 AND published='1' LIMIT 1
105 (!!!!! 4012.1078491211): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749021 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749021 AND published='1' LIMIT 1
106 (138.99803161621): 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=294749021 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
107 (741.00494384766): 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=294749021 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
108 (768.89991760254): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749021 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749021 AND published='1' LIMIT 1
109 (100.13580322266): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749021 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749021 AND published='1' LIMIT 1
110 (512.12310791016): 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=294749021 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
111 (!!!!! 3036.0221862793): 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=294749021 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
112 (!!!!! 1148.9391326904): 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 (818.96781921387): 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 (699.04327392578): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749021 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749021 AND published='1' LIMIT 1
115 (351.90582275391): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749021 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749021 AND published='1' LIMIT 1
116 (632.04765319824): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749021 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749021 AND published='1' LIMIT 1
117 (174.99923706055): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749021 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749021 AND published='1' LIMIT 1
118 (612.02049255371): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749021 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749021 AND published='1' LIMIT 1
119 (58.889389038086): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749021 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749021 AND published='1' LIMIT 1
120 (247.95532226562): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749021 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749021 AND published='1' LIMIT 1
121 (653.98216247559): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749021 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749021 AND published='1' LIMIT 1
122 (444.88906860352): SELECT * FROM trending_articles WHERE `journal_id` = 10 AND `timestamp` <= NOW() + INTERVAL 7 DAY ORDER BY `order`
123 (!!!!! 51561.832427979): 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 (!!!!! 1682.0430755615): SELECT fid FROM jos_deeppockets WHERE cat=10 AND id=294749021 AND type='deeppockets_item' AND published='1' union SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294749021 AND type='deeppockets_item' AND published='1' LIMIT 1
125 (!!!!! 27374.029159546): ( 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 (84.877014160156): ( 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 (519.0372467041): 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 (187.87384033203): 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 (941.03813171387): 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 (!!!!! 1903.772354126): 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 (489.95018005371): 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 (303.98368835449): 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 (!!!!! 1324.8920440674): 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 (59.127807617188): 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 (!!!!! 1112.9379272461): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749021 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
136 (414.13307189941): SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749021 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
137 (168.0850982666): SELECT name FROM jos_deeppockets WHERE id=214
138 (42.915344238281): SELECT name FROM jos_deeppockets WHERE id=214
139 (676.15509033203): 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 '((;)|(^))214((;)|($))' AND catid IN (0,110) ORDER BY publish_up ASC LIMIT 3
140 (692.84439086914): SELECT *, DATE_FORMAT(publish_up,'%d %b %Y') AS date_publish_up, DATE_FORMAT(publish_down,'%d %b %Y') AS date_publish_down FROM jos_events WHERE state=1 AND publish_up > NOW() and extra_info REGEXP '((;)|(^))214((;)|($))' AND catid IN (0,110) ORDER BY publish_up ASC LIMIT 3
141 (!!!!! 3421.0681915283): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749021 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749021 AND published='1' LIMIT 1
142 (66.041946411133): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749021 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749021 AND published='1' LIMIT 1
143 (!!!!! 30586.004257202): TRUNCATE TABLE jos_trademed_module
144 (755.07164001465): 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=294749021 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
145 (!!!!! 4312.9920959473): 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=294749021 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
146 (453.94897460938): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749021 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
147 (!!!!! 1086.950302124): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749021 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
148 (85.830688476562): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749021 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749021 AND published='1' LIMIT 1
149 (56.982040405273): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749021 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749021 AND published='1' LIMIT 1
150 (!!!!! 1462.9364013672): 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 (97.036361694336): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749021 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749021 AND published='1' LIMIT 1
152 (65.088272094727): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749021 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749021 AND published='1' LIMIT 1
153 (648.02169799805): SELECT fid FROM jos_deeppockets WHERE cat=10 AND id=294749021 AND type='deeppockets_item' AND published='1' union SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294749021 AND type='deeppockets_item' AND published='1' LIMIT 1
154 (638.96179199219): 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=214 or channel_id is null)
155 (!!!!! 4331.111907959): 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=214 or channel_id is null)
156 (743.86596679688): SELECT livesite FROM jos_dp_categories WHERE id=10 AND published='1' LIMIT 1
157 (183.10546875): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749021 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749021 AND published='1' LIMIT 1
158 (257.96890258789): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294749021 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294749021 AND published='1' LIMIT 1
159 (70.810317993164): select jos_twitters.link from jos_twitters where cat=10
160 (79.154968261719): select jos_facebook.link from jos_facebook where cat=10
161 (30.994415283203): select jos_google_plus.link from jos_google_plus where cat=10
162 (36.001205444336): select jos_linkedin.link from jos_linkedin where cat=10