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AI Model Accurately Detects Thyroid Cancer and Predicts Outcomes from Ultrasound Images

By MedImaging International staff writers
Posted on 25 Feb 2022
Image: AI model examines ultrasound images to detect thyroid cancer (Photo courtesy of Unsplash)
Image: AI model examines ultrasound images to detect thyroid cancer (Photo courtesy of Unsplash)

A new study has found that an artificial intelligence (AI) model incorporating multiple methods of machine learning accurately detects thyroid cancer and predicts pathological and genomic outcomes through analysis of routine ultrasound images.

The AI model developed by researchers at Mass General Cancer Center (Boston, MA, USA) could present a low-cost, non-invasive option for screening, staging and personalized treatment planning for the disease. To train and validate the AI platform, researchers obtained 1,346 thyroid nodule images through routine diagnostic ultrasound from 784 patients. The ultrasound images were divided into two datasets, one for internal training and validation, and one for external validation. Malignancy was confirmed with samples obtained from fine needle biopsy. Pathological staging and mutational status were confirmed with operative reports and genomic sequencing, respectively.

Unlike the conventional AI approach, researchers combined multiple AI methods for the model, including (1) radiomics, which extracts a large number of quantitative features from the images; (2) topological data analysis (TDA), which assesses the spatial relationship between data points in the images; (3) deep learning, where algorithms run the data through multiple layers of an AI neural network to generate predictions; and (4) machine learning (ML), in which an algorithm utilizes Thyroid Imaging Reporting and Data System (TI-RADS)-defined ultrasound properties as ML features.

A multimodal platform utilizing these four methods accurately predicted 98.7% of thyroid nodule malignancies in the internal dataset, significantly outperforming individual AI modalities used alone. By comparison, the individual radiomics model predicted 89% of malignancies (p<0.001 compared to the multimodal platform), the deep learning model achieved 87% accuracy (p=0.002), and TDA and (ML) TI-RADS were accurate for 81% and 80% of the samples, respectively (both p<0.001). On the external validation dataset, the model was 93% accurate for malignancy prediction.

A multimodal model comprising radiomics, TDA and (ML)TI-RADS also was able to distinguish pathological stage (93% accuracy for T-stage, 89% for N-stage, and 98% for extrathyroidal extension). Additionally, the model identified BRAF V600E mutation, which can be treated with targeted therapy, with 96% accuracy.

"Thyroid cancer is one of the most rapidly increasing cancers in the United States, largely due to increased detection and improved diagnostics. We have developed an artificial intelligence platform that would examine ultrasound images and predict with high accuracy whether a potentially problematic thyroid nodule is, in fact, cancerous. If it is cancerous, we can further predict the tumor stage, the nodal stage and the presence or absence of BRAF mutation," said senior author Annie Chan, MD, Director of the Head and Neck Radiation Oncology Research Program at the Mass General Cancer Center. "If caught early, this disease is highly treatable, and patients generally can expect to live a long time after treatment."

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88 (901.93748474121): SELECT fid FROM jos_deeppockets WHERE cat=10 AND id=294791743 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
89 (52.928924560547): SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294791743 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
90 (37.908554077148): 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`
91 (!!!!! 3429.8896789551): SELECT show_live FROM jos_com_show_setting LIMIT 1
92 (133.03756713867): SELECT show_live FROM jos_com_show_setting LIMIT 1
93 (56.028366088867): SELECT show_live FROM jos_com_show_setting LIMIT 1
94 (40.054321289062): SELECT show_live FROM jos_com_show_setting LIMIT 1
95 (39.815902709961): SELECT show_live FROM jos_com_show_setting LIMIT 1
96 (36.954879760742): SELECT show_live FROM jos_com_show_setting LIMIT 1
97 (45.061111450195): SELECT show_live FROM jos_com_show_setting LIMIT 1
98 (41.007995605469): SELECT show_live FROM jos_com_show_setting LIMIT 1
99 (43.869018554688): SELECT show_live FROM jos_com_show_setting LIMIT 1
100 (38.14697265625): SELECT show_live FROM jos_com_show_setting LIMIT 1
101 (37.193298339844): SELECT show_live FROM jos_com_show_setting LIMIT 1
102 (39.100646972656): SELECT show_live FROM jos_com_show_setting LIMIT 1
103 (52.213668823242): SELECT show_live FROM jos_com_show_setting LIMIT 1
104 (38.862228393555): SELECT show_live FROM jos_com_show_setting LIMIT 1
105 (!!!!! 2256.1550140381): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294791743 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294791743 AND published='1' LIMIT 1
106 (96.08268737793): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294791743 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294791743 AND published='1' LIMIT 1
107 (!!!!! 3508.0909729004): 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=294791743 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
108 (729.08401489258): 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=294791743 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
109 (112.05673217773): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294791743 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294791743 AND published='1' LIMIT 1
110 (222.92137145996): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294791743 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294791743 AND published='1' LIMIT 1
111 (269.88983154297): 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=294791743 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
112 (591.99333190918): 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=294791743 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
113 (599.14588928223): 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 (!!!!! 4361.8679046631): 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
115 (124.93133544922): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294791743 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294791743 AND published='1' LIMIT 1
116 (687.83760070801): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294791743 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294791743 AND published='1' LIMIT 1
117 (627.99453735352): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294791743 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294791743 AND published='1' LIMIT 1
118 (331.87866210938): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294791743 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294791743 AND published='1' LIMIT 1
119 (682.83081054688): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294791743 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294791743 AND published='1' LIMIT 1
120 (68.902969360352): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294791743 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294791743 AND published='1' LIMIT 1
121 (74.863433837891): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294791743 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294791743 AND published='1' LIMIT 1
122 (169.99244689941): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294791743 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294791743 AND published='1' LIMIT 1
123 (402.92739868164): SELECT * FROM trending_articles WHERE `journal_id` = 10 AND `timestamp` <= NOW() + INTERVAL 7 DAY ORDER BY `order`
124 (!!!!! 53625.822067261): 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
125 (646.11434936523): SELECT fid FROM jos_deeppockets WHERE cat=10 AND id=294791743 AND type='deeppockets_item' AND published='1' union SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294791743 AND type='deeppockets_item' AND published='1' LIMIT 1
126 (!!!!! 16302.108764648): ( 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 (52.928924560547): ( 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
128 (117.06352233887): 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 (311.13624572754): 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
130 (146.86584472656): 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 (34.093856811523): 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
132 (684.97657775879): 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 (50.067901611328): 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
134 (38.14697265625): 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 (29.802322387695): 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
136 (!!!!! 3242.015838623): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294791743 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
137 (473.0224609375): SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294791743 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
138 (44.107437133789): SELECT name FROM jos_deeppockets WHERE id=214
139 (30.994415283203): SELECT name FROM jos_deeppockets WHERE id=214
140 (682.83081054688): 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((;)|($))' AND catid IN (0,110) ORDER BY publish_up ASC LIMIT 3
141 (585.07919311523): SELECT *, DATE_FORMAT(publish_up,'%d %b %Y') AS date_publish_up, DATE_FORMAT(publish_down,'%d %b %Y') AS date_publish_down FROM jos_events WHERE state=1 AND publish_up > NOW() and extra_info REGEXP '((;)|(^))214((;)|($))' AND catid IN (0,110) ORDER BY publish_up ASC LIMIT 3
142 (!!!!! 3331.8996429443): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294791743 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294791743 AND published='1' LIMIT 1
143 (81.062316894531): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294791743 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294791743 AND published='1' LIMIT 1
144 (!!!!! 12609.958648682): TRUNCATE TABLE jos_trademed_module
145 (!!!!! 2789.0205383301): 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=294791743 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
146 (!!!!! 3981.1134338379): 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=294791743 AND (dp.type='deeppockets_item' OR dp.type='deeppockets_item_link') AND dp.published='1' LIMIT 1
147 (533.8191986084): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294791743 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
148 (!!!!! 2144.8135375977): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294791743 AND (type='deeppockets_item' OR type='deeppockets_item_link') AND published='1' LIMIT 1
149 (83.92333984375): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294791743 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294791743 AND published='1' LIMIT 1
150 (52.213668823242): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294791743 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294791743 AND published='1' LIMIT 1
151 (!!!!! 1443.8629150391): 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
152 (146.15058898926): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294791743 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294791743 AND published='1' LIMIT 1
153 (79.154968261719): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294791743 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294791743 AND published='1' LIMIT 1
154 (!!!!! 3125.9059906006): SELECT fid FROM jos_deeppockets WHERE cat=10 AND id=294791743 AND type='deeppockets_item' AND published='1' union SELECT fid FROM jos_deeppockets_archive WHERE cat=10 AND id=294791743 AND type='deeppockets_item' AND published='1' LIMIT 1
155 (97.036361694336): 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 (46.014785766602): 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)
157 (64.849853515625): SELECT livesite FROM jos_dp_categories WHERE id=10 AND published='1' LIMIT 1
158 (!!!!! 1765.9664154053): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294791743 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294791743 AND published='1' LIMIT 1
159 (66.995620727539): SELECT * FROM jos_deeppockets WHERE 1=1 AND id=294791743 AND published='1' union SELECT * FROM jos_deeppockets_archive WHERE 1=1 AND id=294791743 AND published='1' LIMIT 1
160 (526.18980407715): select jos_twitters.link from jos_twitters where cat=10
161 (62.942504882812): select jos_facebook.link from jos_facebook where cat=10
162 (34.093856811523): select jos_google_plus.link from jos_google_plus where cat=10
163 (33.140182495117): select jos_linkedin.link from jos_linkedin where cat=10