{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,5]],"date-time":"2026-09-05T15:03:13Z","timestamp":1788620593106,"version":"build-2803163510"},"reference-count":24,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2013,3,5]],"date-time":"2013-03-05T00:00:00Z","timestamp":1362441600000},"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":[[2013,11]]},"abstract":"<jats:sec><jats:title>Purpose<\/jats:title><jats:p>To describe the clinical and magnetic resonance (MR) imaging features of primary intracranial hemangiopericytoma (HPC), and to assess the usefulness of minimum apparent diffusion coefficient (MinADC) value of HPC in the differential diagnosis from meningioma.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and Methods<\/jats:title><jats:p>From 2004 to 2010, fifteen patients with primary intracranial HPC were included. The clinical data, conventional MR findings (n = 15), and diffusion weighted image (DWI) features (n = 10) were retrospectively analyzed. MinADC value of the HPCs (n = 10) was measured on ADC map and was compared with that of meningiomas (n = 37).<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>In 15 cases of HPC, isointense signal was detected on both T1\u2010weighted images (T1WI) and T2\u2010weighted images (T2WI) in 11 cases, and heterogeneous signal was demonstrated in 4 cases. Isointensity (n = 9) and iso\u2010 and slight hyperintensity (n = 1) were shown on DWI. The mean MinADC value of HPC [(1.116 \u00b1 0.127) \u00d7 10<jats:sup>\u22123<\/jats:sup> mm<jats:sup>2<\/jats:sup>\/s] was significantly higher than that of meningioma [(0.875 \u00b1 0.104) \u00d7 10<jats:sup>\u22123<\/jats:sup> mm<jats:sup>2<\/jats:sup>\/s] (<jats:italic>P<\/jats:italic> &lt; 0.01). For the differentiation between HPC and meningioma, the critical cutoff MinADC value was 0.991 \u00d7 10<jats:sup>\u22123<\/jats:sup> mm<jats:sup>2<\/jats:sup>\/s, which provided the best combination of sensitivity (88.9%) and specificity (82.4%).<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>MinADC value may be an useful tool for the differentiation between HPC and meningioma. J. Magn. Reson. Imaging 2013;38:1146\u20131151. \u00a9 2013 Wiley Periodicals, Inc.<\/jats:p><\/jats:sec>","DOI":"10.1002\/jmri.24075","type":"journal-article","created":{"date-parts":[[2013,3,5]],"date-time":"2013-03-05T18:16:45Z","timestamp":1362507405000},"page":"1146-1151","source":"Crossref","is-referenced-by-count":35,"title":["Intracranial hemangiopericytoma: MR imaging findings and diagnostic usefulness of minimum ADC values"],"prefix":"10.1002","volume":"38","author":[{"given":"Gang","family":"Liu","sequence":"first","affiliation":[{"name":"Department of Radiology People's Liberation Army General Hospital China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zhi\u2010Ye","family":"Chen","sequence":"additional","affiliation":[{"name":"Department of Radiology People's Liberation Army General Hospital China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lin","family":"Ma","sequence":"additional","affiliation":[{"name":"Department of Radiology People's 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