{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T20:01:48Z","timestamp":1790020908366,"version":"4.0.1"},"reference-count":23,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2001,3,21]],"date-time":"2001-03-21T00:00:00Z","timestamp":985132800000},"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":[[2001,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Recent studies have demonstrated the potential of dynamic contrast\u2010enhanced magnetic resonance imaging (MRI) describing pulmonary perfusion. However, breathing motion, susceptibility artifacts, and a low signal\u2010to\u2010noise ratio (SNR) make automatic pixel\u2010by\u2010pixel analysis difficult. In the present work, we propose a novel method to compensate for breathing motion. In order to test the feasibility of this method, we enrolled 53 patients with pulmonary embolism (<jats:italic>N<\/jats:italic> = 24), chronic obstructive pulmonary disease (COPD) (<jats:italic>N<\/jats:italic> = 14), and acute pneumonia (<jats:italic>N<\/jats:italic> = 15). A crucial part of the method, an automatic diaphragm detection algorithm, was evaluated in all 53 patients by two independent observers. The accuracy of the method to detect the diaphragm showed a success rate of 92%. Furthermore, a Bayesian noise reduction technique was implemented and tested. This technique significantly reduced the noise level without removing important clinical information. In conclusion, the combination of a motion correction method and a Bayesian noise reduction method offered a rapid, semiautomatic pixel\u2010by\u2010pixel analysis of the lungs with great potential for research and clinical use. J. Magn. 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Imaging 2001;13:577\u2013587. \u00a9 2001 Wiley\u2010Liss, Inc.<\/jats:p>","DOI":"10.1002\/jmri.1081","type":"journal-article","created":{"date-parts":[[2002,8,25]],"date-time":"2002-08-25T21:27:27Z","timestamp":1030310847000},"page":"577-587","source":"Crossref","is-referenced-by-count":10,"title":["Analysis of contrast\u2010enhanced dynamic MR images of the lung"],"prefix":"10.1002","volume":"13","author":[{"given":"Geir","family":"Torheim","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tore","family":"Amundsen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Peter A.","family":"Rinck","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Olav","family":"Haraldseth","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Giovanni","family":"Sebastiani","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2001,3,21]]},"reference":[{"key":"e_1_2_6_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0730-725X(96)00145-2"},{"key":"e_1_2_6_3_2","doi-asserted-by":"publisher","DOI":"10.1002\/mrm.1910360511"},{"key":"e_1_2_6_4_2","doi-asserted-by":"publisher","DOI":"10.1148\/radiology.216.2.r00au36545"},{"key":"e_1_2_6_5_2","doi-asserted-by":"publisher","DOI":"10.1148\/radiology.203.1.9122390"},{"key":"e_1_2_6_6_2","doi-asserted-by":"publisher","DOI":"10.1002\/1522-2586(200008)12:2<224::AID-JMRI3>3.0.CO;2-E"},{"key":"e_1_2_6_7_2","doi-asserted-by":"publisher","DOI":"10.1038\/nm1196-1236"},{"key":"e_1_2_6_8_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0165-1684(97)00002-9"},{"key":"e_1_2_6_9_2","doi-asserted-by":"crossref","first-page":"165","DOI":"10.1080\/02841859709171262","article-title":"An independent software system for the analysis of dynamic MR images","volume":"38","author":"Torheim G","year":"1997","journal-title":"Acta Radiol"},{"key":"e_1_2_6_10_2","doi-asserted-by":"publisher","DOI":"10.1145\/146370.146374"},{"key":"e_1_2_6_11_2","doi-asserted-by":"publisher","DOI":"10.1109\/TPAMI.1984.4767596"},{"key":"e_1_2_6_12_2","volume-title":"Image analysis, random fields and dynamic Monte Carlo methods","year":"1995"},{"key":"e_1_2_6_13_2","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.328.7441.702"},{"key":"e_1_2_6_14_2","doi-asserted-by":"publisher","DOI":"10.2307\/2529310"},{"key":"e_1_2_6_15_2","doi-asserted-by":"publisher","DOI":"10.1137\/1110024"},{"key":"e_1_2_6_16_2","first-page":"101","article-title":"Smooth regression analysis","volume":"26","author":"Watson GS","year":"1964","journal-title":"Sankhya Ser A"},{"key":"e_1_2_6_17_2","first-page":"517","volume-title":"Physiology","author":"Staub NC","year":"1998"},{"key":"e_1_2_6_18_2","first-page":"8","volume-title":"A radiologic approach to diseases of the chest","author":"Gurney JW","year":"1992"},{"key":"e_1_2_6_19_2","doi-asserted-by":"publisher","DOI":"10.1097\/00004728-199307000-00004"},{"key":"e_1_2_6_20_2","doi-asserted-by":"publisher","DOI":"10.1016\/S1361-8415(01)80004-9"},{"key":"e_1_2_6_21_2","first-page":"142","article-title":"Registration of multi\u2010modal biomedical images of the heart","volume":"40","author":"Gilardi MC","year":"1996","journal-title":"Q J Nucl Med"},{"key":"e_1_2_6_22_2","doi-asserted-by":"publisher","DOI":"10.1109\/83.366480"},{"key":"e_1_2_6_23_2","doi-asserted-by":"publisher","DOI":"10.1007\/BF00133570"},{"key":"e_1_2_6_24_2","volume-title":"Numerical recipes in C","author":"Press WH","year":"1992"}],"container-title":["Journal of Magnetic Resonance Imaging"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fjmri.1081","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/jmri.1081","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,9,14]],"date-time":"2023-09-14T09:56:55Z","timestamp":1694685415000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/jmri.1081"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2001,3,21]]},"references-count":23,"journal-issue":{"issue":"4","published-print":{"date-parts":[[2001,4]]}},"alternative-id":["10.1002\/jmri.1081"],"URL":"https:\/\/doi.org\/10.1002\/jmri.1081","archive":["Portico"],"relation":{},"ISSN":["1053-1807","1522-2586"],"issn-type":[{"value":"1053-1807","type":"print"},{"value":"1522-2586","type":"electronic"}],"subject":[],"published":{"date-parts":[[2001,3,21]]}}}