{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2023,10,21]],"date-time":"2023-10-21T07:24:28Z","timestamp":1697873068571},"reference-count":25,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2012,9,28]],"date-time":"2012-09-28T00:00:00Z","timestamp":1348790400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Magnetic Resonance Imaging"],"published-print":{"date-parts":[[2013,2]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose:<\/jats:title><jats:p>To evaluate the value of subtraction images when using MRI to assess liver tumors treated with percutaneous ablation.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and Methods:<\/jats:title><jats:p>Following percutaneous ablation of 35 liver tumors, two abdominal radiologists, blinded to outcomes, independently reviewed follow\u2010up MRI examinations for tumoral enhancement suggestive of residual\/recurrent tumor and rated their confidence level. After one year, the readers reviewed the same examinations with added subtraction images. Accuracy of the detection of residual\/recurrent tumor and contrast\u2010to\u2010noise ratios (CNR; for tumoral enhancement\u2010to\u2010liver, tumoral enhancement\u2010to\u2010ablation zone, and ablation zone\u2010to\u2010liver) were calculated with and without subtraction images and compared using Wilcoxon signed rank test. Interobserver variability was computed using Kappa (\u03ba) statistics.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results:<\/jats:title><jats:p>Residual\/recurrent tumor was present in 8 (23.5%) of 34 tumors. Accuracy of detecting residual\/recurrent tumor with subtraction images and interobserver agreement (\u03ba = 0.72, good) were better than accuracy of detecting residual\/recurrent tumor and interobserver agreement (\u03ba = 0.57, moderate) of enhanced MR images without subtraction. Mean CNR of subtraction images was significantly higher than that of enhanced MR images for tumoral enhancement\u2010to\u2010liver (0.2 \u00b1 5 versus 11.6 \u00b1 14.4, <jats:italic>P<\/jats:italic> = 0.03), tumoral enhancement\u2010to\u2010ablation zone (10.1 \u00b1 12.5 versus 34.4 \u00b1 29.4, <jats:italic>P<\/jats:italic> = 0.02), and ablation zone\u2010to\u2010liver (11.8 \u00b1 13.3 versus 102.5 \u00b1 238.4, <jats:italic>P<\/jats:italic> = 0.03).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion:<\/jats:title><jats:p>When using MRI, subtraction images help both detect and exclude residual\/recurrent tumor following percutaneous liver ablations. J. Magn. Reson. Imaging 2013;37:407\u2013413. \u00a9 2012 Wiley Periodicals, Inc.<\/jats:p><\/jats:sec>","DOI":"10.1002\/jmri.23827","type":"journal-article","created":{"date-parts":[[2012,9,30]],"date-time":"2012-09-30T22:00:35Z","timestamp":1349042435000},"page":"407-413","source":"Crossref","is-referenced-by-count":8,"title":["MRI assessment of percutaneous ablation of liver tumors: Value of subtraction images"],"prefix":"10.1002","volume":"37","author":[{"given":"Servet","family":"Tatli","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Murat","family":"Acar","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kemal","family":"Tuncali","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cheryl A.","family":"Sadow","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Paul R.","family":"Morrison","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Stuart G.","family":"Silverman","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2012,9,28]]},"reference":[{"key":"e_1_2_5_2_2","doi-asserted-by":"publisher","DOI":"10.1148\/radiology.217.3.r00dc40657"},{"key":"e_1_2_5_3_2","doi-asserted-by":"publisher","DOI":"10.1002\/jmri.21260"},{"key":"e_1_2_5_4_2","doi-asserted-by":"publisher","DOI":"10.1007\/s11934-007-0019-3"},{"key":"e_1_2_5_5_2","doi-asserted-by":"publisher","DOI":"10.2214\/AJR.06.0588"},{"key":"e_1_2_5_6_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.crad.2007.06.002"},{"key":"e_1_2_5_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ejrad.2007.11.017"},{"key":"e_1_2_5_8_2","doi-asserted-by":"publisher","DOI":"10.2214\/AJR.05.2182"},{"key":"e_1_2_5_9_2","doi-asserted-by":"publisher","DOI":"10.2307\/2529310"},{"key":"e_1_2_5_10_2","doi-asserted-by":"publisher","DOI":"10.1148\/radiol.2322031209"},{"key":"e_1_2_5_11_2","doi-asserted-by":"publisher","DOI":"10.2214\/ajr.167.6.8956572"},{"key":"e_1_2_5_12_2","doi-asserted-by":"publisher","DOI":"10.1148\/radiol.2322030547"},{"key":"e_1_2_5_13_2","doi-asserted-by":"publisher","DOI":"10.1148\/radiology.196.3.7644630"},{"key":"e_1_2_5_14_2","first-page":"59","article-title":"Improved detection of liver metastasis by registration and subtraction of dynamic contrast\u2010enhanced magnetic resonance imaging","volume":"2007","author":"Passera KM","year":"2007","journal-title":"Conf Proc IEEE Eng Med Biol Soc"},{"key":"e_1_2_5_15_2","doi-asserted-by":"publisher","DOI":"10.1097\/01.rct.0000152846.06095.b3"},{"key":"e_1_2_5_16_2","doi-asserted-by":"publisher","DOI":"10.2214\/ajr.180.5.1801351"},{"key":"e_1_2_5_17_2","doi-asserted-by":"publisher","DOI":"10.1148\/radiology.219.2.r01ma40445"},{"key":"e_1_2_5_18_2","doi-asserted-by":"publisher","DOI":"10.1053\/j.tvir.2007.09.008"},{"key":"e_1_2_5_19_2","first-page":"487","article-title":"Reducing misregistration of mask image in hepatic DSA","volume":"68","author":"Katsuda T","year":"1997","journal-title":"Radiol Technol"},{"key":"e_1_2_5_20_2","doi-asserted-by":"publisher","DOI":"10.1002\/(SICI)1522-2594(199905)41:5<964::AID-MRM16>3.0.CO;2-D"},{"key":"e_1_2_5_21_2","doi-asserted-by":"publisher","DOI":"10.1186\/1532-429X-10-13"},{"key":"e_1_2_5_22_2","doi-asserted-by":"publisher","DOI":"10.1259\/bjr\/13217618"},{"key":"e_1_2_5_23_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ultrasmedbio.2011.12.008"},{"key":"e_1_2_5_24_2","first-page":"5075","article-title":"Local ablation procedures in primary liver tumors: Levovist US versus spiral CT to evaluate therapeutic results","volume":"23","author":"Vallone P","year":"2003","journal-title":"Anticancer Res"},{"key":"e_1_2_5_25_2","doi-asserted-by":"crossref","first-page":"192","DOI":"10.1097\/01.RLU.0000053530.95952.FD","article-title":"FDG positron emission tomography in the surveillance of hepatic tumors treated with radiofrequency ablation","volume":"28","author":"Anderson GS","year":"2003","journal-title":"Clin Nucl Med"},{"key":"e_1_2_5_26_2","doi-asserted-by":"publisher","DOI":"10.1245\/s10434-011-2059-7"}],"container-title":["Journal of Magnetic Resonance Imaging"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fjmri.23827","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/jmri.23827","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,10]],"date-time":"2023-10-10T06:31:14Z","timestamp":1696919474000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/jmri.23827"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2012,9,28]]},"references-count":25,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2013,2]]}},"alternative-id":["10.1002\/jmri.23827"],"URL":"https:\/\/doi.org\/10.1002\/jmri.23827","archive":["Portico"],"relation":{},"ISSN":["1053-1807","1522-2586"],"issn-type":[{"value":"1053-1807","type":"print"},{"value":"1522-2586","type":"electronic"}],"subject":[],"published":{"date-parts":[[2012,9,28]]}}}