{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,8]],"date-time":"2026-01-08T22:35:49Z","timestamp":1767911749683,"version":"3.49.0"},"reference-count":23,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2005,9,28]],"date-time":"2005-09-28T00:00:00Z","timestamp":1127865600000},"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":[[2005,11]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>To evaluate the apparent diffusion coefficient (ADC) of femoral head avascular necrosis (AVN) in severe acute respiratory syndrome (SARS).<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and Methods<\/jats:title><jats:p>Seventy\u2010nine SARS patients with hip pain underwent both conventional and diffusion\u2010weighted MRI (b\u2010value = 0\u20131000 seconds\/mm<jats:sup>2<\/jats:sup>). The abnormal regions on the diffusion\u2010weighted images were outlined by using the conventional images as guides, and the ADCs were calculated. The ADC differences between normal and AVN femoral heads were compared.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Of the 158 hips examined, 28 had AVN (11 with bilateral hip AVN, three with right hip AVN, and three with left hip AVN). The mean ADC was markedly greater in the AVN femoral head (1.66 \u00d7 10<jats:sup>\u20133<\/jats:sup> mm<jats:sup>2<\/jats:sup>\/second \u00b1 0.20) than in the normal femoral head (0.47 \u00d7 10<jats:sup>\u20133<\/jats:sup> mm<jats:sup>2<\/jats:sup>\/second \u00b1 0.082; <jats:italic>P<\/jats:italic> &lt; 0.0001). There was no overlap between the normal and AVN femoral heads.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>DWI can provide valuable information regarding the diffusion properties of femoral head AVN, and markedly increased diffusion was identified in AVN. J. Magn. Reson. Imaging 2005. \u00a9 2005 Wiley\u2010Liss, Inc.<\/jats:p><\/jats:sec>","DOI":"10.1002\/jmri.20430","type":"journal-article","created":{"date-parts":[[2005,9,28]],"date-time":"2005-09-28T16:46:43Z","timestamp":1127926003000},"page":"661-664","source":"Crossref","is-referenced-by-count":22,"title":["Diffusion\u2010weighted MR study of femoral head avascular necrosis in severe acute respiratory syndrome patients"],"prefix":"10.1002","volume":"22","author":[{"given":"Nan","family":"Hong","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiangke","family":"Du","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhongshi","family":"Nie","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sijun","family":"Li","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2005,9,28]]},"reference":[{"key":"e_1_2_6_2_2","first-page":"1279","article-title":"MRI in the following up of the osteonecrosis in SARS patients","volume":"19","author":"Jiang XX","year":"2003","journal-title":"Chin J Med Jmaging Technol"},{"key":"e_1_2_6_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.crad.2003.12.008"},{"key":"e_1_2_6_4_2","first-page":"948","article-title":"Diffusion\u2010weighted MR imaging offers no advantage over routine noncontrast MR imaging in the detection of vertebral metastases","volume":"21","author":"Castillo M","year":"2000","journal-title":"AJNR AM J Neuroradiol"},{"key":"e_1_2_6_5_2","doi-asserted-by":"publisher","DOI":"10.1148\/radiology.207.2.9577479"},{"key":"e_1_2_6_6_2","doi-asserted-by":"publisher","DOI":"10.2214\/ajr.174.3.1740731"},{"key":"e_1_2_6_7_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00256-002-0482-3"},{"key":"e_1_2_6_8_2","doi-asserted-by":"publisher","DOI":"10.1148\/radiol.2273011673"},{"key":"e_1_2_6_9_2","unstructured":"World Health Organization. Case definitions for surveillance of severe acute respiratory syndrome (SARS). 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