{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,3,28]],"date-time":"2024-03-28T19:14:33Z","timestamp":1711653273449},"reference-count":14,"publisher":"Scientific Scholar","content-domain":{"domain":["surgicalneurologyint.com"],"crossmark-restriction":true},"short-container-title":[],"abstract":"<jats:sec id=\"st1\">\n<jats:title>Background: <\/jats:title>\n<jats:p>Diagnosing ruptured micro-arteriovenous malformation (AVM) could be difficult using digital subtraction angiography (DSA) in the acute stage, and a repeat DSA is recommended in DSA-negative cases. Arterial spin labeling (ASL) is a useful noninvasive tool for detecting AVM, but the efficacy of a repeat ASL for DSA and ASL-negative ruptured micro-AVM in the acute stage is unclear. Here, we report a case of ruptured micro-AVM that was not detected in the acute stage by ASL but in the chronic stage by ASL.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"st2\">\n<jats:title>Case Description: <\/jats:title>\n<jats:p>A 43-year-old man developed right upper-extremity paralysis, and computed tomography (CT) revealed a left frontal lobe hemorrhage. Magnetic resonance imaging, including ASL, CT angiography, and DSA, showed no abnormal findings associated with hemorrhage in the acute stage. The second ASL 93 days after the hemorrhage showed a high signal on the cortical vein of the left frontal lobe and superior sagittal sinus, and subsequent DSA detected a micro-AVM in the left precentral gyrus.<\/jats:p>\n<\/jats:sec>\n<jats:sec id=\"st3\">\n<jats:title>Conclusion: <\/jats:title>\n<jats:p>Repeat ASL is less invasive and useful for detecting micro-AVMs which showed no findings on ASL and DSA in the acute stage.<\/jats:p>\n<\/jats:sec>","DOI":"10.25259\/sni_200_2023","type":"journal-article","created":{"date-parts":[[2023,3,31]],"date-time":"2023-03-31T06:27:52Z","timestamp":1680244072000},"page":"119","update-policy":"http:\/\/dx.doi.org\/10.25259\/crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Efficacy of repeat arterial spin labeling for angiogram-negative ruptured micro-arteriovenous malformation: A case report"],"prefix":"10.25259","volume":"14","author":[{"given":"Ryuzaburo","family":"Kochi","sequence":"first","affiliation":[{"name":"Department of Neurosurgery, Iwaki City Medical Center, Iwaki, Japan."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yasuhiro","family":"Suzuki","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Iwaki City Medical Center, Iwaki, Japan."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hiroshi","family":"Yamazaki","sequence":"additional","affiliation":[{"name":"Department of Radiology, Iwaki City Medical Center, Iwaki, Japan."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Takashi","family":"Aikawa","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Iwaki City Medical Center, Iwaki, Japan."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hidenori","family":"Endo","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Khonan Hospital, Sendai, Japan."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Teiji","family":"Tominaga","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery, Tohoku University Graduate School of Medicine, Sendai, Japan."}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"10894","published-online":{"date-parts":[[2023,3,31]]},"reference":[{"key":"10.25259\/SNI_200_2023\/ref-1","doi-asserted-by":"crossref","first-page":"594","DOI":"10.3171\/2013.4.JNS121740","article-title":"Cerebral microarteriovenous malformations: A series of 28 cases","volume":"119","author":"Alen","year":"2013","journal-title":"J Neurosurg"},{"key":"10.25259\/SNI_200_2023\/ref-2","doi-asserted-by":"crossref","first-page":"1228","DOI":"10.3174\/ajnr.A1030","article-title":"Arterial spin-labeling in routine clinical practice, Part 1: Technique and artifacts","volume":"29","author":"Deibler","year":"2008","journal-title":"AJNR Am J 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