{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,3]],"date-time":"2026-07-03T12:50:40Z","timestamp":1783083040234,"version":"3.54.6"},"reference-count":18,"publisher":"SAGE Publications","issue":"1","license":[{"start":{"date-parts":[[2021,12,16]],"date-time":"2021-12-16T00:00:00Z","timestamp":1639612800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Interv Neuroradiol"],"published-print":{"date-parts":[[2023,2]]},"abstract":"<jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>Imaging follow-up after endovascular treatment is important; however, time-of-flight magnetic resonance angiography (TOF-MRA) has limitations associated with magnetic susceptibility and radiofrequency shielding caused by the stent and coils. We evaluated the diagnostic performance of pointwise encoding time reduction with radial acquisition (PETRA)-MRA after endovascular treatment for intracranial aneurysms.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Material and methods<\/jats:title>\n                    <jats:p>A total of 186 patients with 211 aneurysms who underwent both pointwise encoding time reduction with radial acquisition- and time-of-flight magnetic resonance angiography in the same imaging session for follow-up after endovascular treatment. We subjectively graded the overall image quality, visualization of treated sites, and occlusion status.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Although the overall image quality scores of pointwise encoding time reduction with radial acquisition-magnetic resonance angiography were significantly lower than those of time-of-flight magnetic resonance angiography for both observers (4.04\u2009\u00b1\u20090.81 vs. 4.85\u2009\u00b1\u20090.35 [observer 1], 4.60\u2009\u00b1\u20090.69 vs. 4.94\u2009\u00b1\u20090.24 [observer 2]) (both P\u2009&lt;\u2009.001), the visibility of treated sites using pointwise encoding time reduction with radial acquisition-magnetic resonance angiography was significantly better than that of time-of-flight magnetic resonance angiography overall (4.27\u2009\u00b1\u20090.97 vs. 3.42\u2009\u00b1\u20091.01; P\u2009&lt;\u2009.001), in the distal internal carotid artery (4.46\u2009\u00b1\u20090.79 vs. 3.40\u2009\u00b1\u20091.00; P\u2009&lt;\u2009.001), and in the middle cerebral artery (4.19\u2009\u00b1\u20090.93 vs. 3.08\u2009\u00b1\u20090.53, P\u2009=\u20090.007). Pointwise encoding time reduction with radial acquisition-magnetic resonance angiography showed a higher area under the curve than time-of-flight magnetic resonance angiography for the evaluation of treated aneurysm occlusion, except for posterior circulation aneurysms.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Pointwise encoding time reduction with radial acquisition-magnetic resonance angiography showed better visualization of treated sites and better diagnostic performance than time-of-flight magnetic resonance angiography for anterior circulation aneurysms. However, Pointwise encoding time reduction with radial acquisition-magnetic resonance angiography showed limitations in the follow-up evaluation of posterior circulation aneurysms.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/15910199211065906","type":"journal-article","created":{"date-parts":[[2021,12,16]],"date-time":"2021-12-16T06:21:24Z","timestamp":1639635684000},"page":"20-29","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":7,"title":["Usefulness of Pointwise Encoding Time Reduction with Radial Acquisition-Magnetic Resonance Angiography after Endovascular Treatment for Intracranial Aneurysms"],"prefix":"10.1177","volume":"29","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4765-0727","authenticated-orcid":false,"given":"Young Jin","family":"Heo","sequence":"first","affiliation":[{"name":"Department of Radiology, Inje University Busan Paik Hospital, Busan, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Donghyun","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Radiology, Inje University Busan Paik Hospital, Busan, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4912-9302","authenticated-orcid":false,"given":"Hae Woong","family":"Jeong","sequence":"additional","affiliation":[{"name":"Department of Radiology, Inje University Busan Paik Hospital, Busan, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4632-4951","authenticated-orcid":false,"given":"Jin Wook","family":"Baek","sequence":"additional","affiliation":[{"name":"Department of Radiology, Inje University Busan Paik Hospital, Busan, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Da Som","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Radiology, Inje University Busan Paik Hospital, Busan, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gi Won","family":"Shin","sequence":"additional","affiliation":[{"name":"Department of Radiology, Inje University Busan Paik Hospital, Busan, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ji-yeon","family":"Han","sequence":"additional","affiliation":[{"name":"Department of Radiology, Inje University Busan Paik Hospital, Busan, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3737-3850","authenticated-orcid":false,"given":"Sung Tae","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Inje University Busan Paik Hospital, Busan, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Young Gyun","family":"Jeong","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Inje University Busan Paik Hospital, Busan, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2021,12,16]]},"reference":[{"key":"bibr1-15910199211065906","doi-asserted-by":"publisher","DOI":"10.3171\/2017.3.FOCUS1732"},{"key":"bibr2-15910199211065906","doi-asserted-by":"publisher","DOI":"10.1148\/radiol.2433060536"},{"key":"bibr3-15910199211065906","doi-asserted-by":"publisher","DOI":"10.1161\/STROKEAHA.111.635300"},{"key":"bibr4-15910199211065906","doi-asserted-by":"publisher","DOI":"10.3174\/ajnr.A3700"},{"key":"bibr5-15910199211065906","doi-asserted-by":"publisher","DOI":"10.1016\/j.neurad.2007.05.002"},{"key":"bibr6-15910199211065906","doi-asserted-by":"publisher","DOI":"10.1177\/0284185113502335"},{"key":"bibr7-15910199211065906","doi-asserted-by":"publisher","DOI":"10.3348\/kjr.2014.15.1.161"},{"key":"bibr8-15910199211065906","doi-asserted-by":"publisher","DOI":"10.3174\/ajnr.A4199"},{"key":"bibr9-15910199211065906","doi-asserted-by":"publisher","DOI":"10.1093\/neuros\/nyz421"},{"key":"bibr10-15910199211065906","doi-asserted-by":"publisher","DOI":"10.1177\/0284185120952784"},{"key":"bibr11-15910199211065906","doi-asserted-by":"publisher","DOI":"10.1007\/s00330-017-4794-z"},{"key":"bibr12-15910199211065906","doi-asserted-by":"publisher","DOI":"10.3174\/ajnr.A5223"},{"key":"bibr13-15910199211065906","doi-asserted-by":"publisher","DOI":"10.2307\/2531595"},{"key":"bibr14-15910199211065906","doi-asserted-by":"publisher","DOI":"10.1093\/neuros\/nyaa467"},{"key":"bibr15-15910199211065906","doi-asserted-by":"publisher","DOI":"10.1007\/s00234-012-1063-3"},{"key":"bibr16-15910199211065906","doi-asserted-by":"publisher","DOI":"10.1002\/jcu.20301"},{"key":"bibr17-15910199211065906","first-page":"1154","volume":"25","author":"Yamada 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