{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T02:16:00Z","timestamp":1787019360408,"version":"build-2736575974"},"reference-count":24,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[2023,12,26]],"date-time":"2023-12-26T00:00:00Z","timestamp":1703548800000},"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":["Neuroradiol J"],"published-print":{"date-parts":[[2024,4]]},"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Cerebral computed tomography angiography (CTA) has revolutionized the diagnosis of neurovascular emergencies. Strategies to reduce radiation, a concern for cancer, involve tube voltage and current reduction but with increased noise and inferior image quality. Hence, the objective of the study was to evaluate the quality of images obtained through low-dose radiation and low-contrast volume CTA with an iterative reconstruction (IR) technique versus standard CTA without IR.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>This prospective trial involved 100 adults requiring cerebral CTA for cerebrovascular diseases. They were split into two groups: one with 120 kVp tube voltage and 80\u00a0mL contrast using filtered back projection, and the other with 80 kVp and 30\u00a0mL contrast with IR. Evaluation criteria included attenuation values, signal-to-noise ratio, contrast-to-noise ratio, and subjective assessments.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Compared to 120 kVp, 80 kVp showed higher vessel attenuation in the internal (272.91 \u00b1 30.59 vs 405.52 \u00b1 53.08; p &lt; .001) and middle cerebral artery (247.55 \u00b1 29.84 vs 372.55 \u00b1 49.02; p &lt; .001) regions. Brain parenchymal attenuation at the centrum semiovale was lower with 80 kVp (29.12 \u00b1 1.87 vs 24.78 \u00b1 2.94; p &lt; .001), accompanied by higher noise. Signal-to-noise ratio ( p &lt; .001) and contrast-to-noise ratio ( p &lt; .05) were lower at 80 kVp. Image quality didn't significantly differ, and radiation exposure reduced significantly by 70% in the 80 kVp group, suggesting its diagnostic feasibility.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>The 80 kVp protocol for CTA of the cerebral vessels combined with lower contrast volume produces images with similar image quality with significant radiation effective dose and total iodine dose reduction. The 80 kVp protocol holds significant promise for replacing the standard 120 kVp protocol in cerebral CTA.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/19714009231224412","type":"journal-article","created":{"date-parts":[[2023,12,27]],"date-time":"2023-12-27T01:25:13Z","timestamp":1703640313000},"page":"221-228","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":1,"title":["A comparative study of low voltage, low contrast cerebral computed tomography angiography with iterative reconstruction and conventional cerebral computed tomography angiography"],"prefix":"10.1177","volume":"37","author":[{"given":"Saurav","family":"Mishra","sequence":"first","affiliation":[{"name":"Department of Radiodiagnosis and Imaging, Postgraduate Institute of Medical Education and Research, India"},{"name":"Department of Radiodiagnosis and Imaging, Vayodha Hospital, Nepal"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sandeep","family":"Mishra","sequence":"additional","affiliation":[{"name":"Department of Neurosurgery and Neuro-intervention, Neo Multispecialty Hospital, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9827-8320","authenticated-orcid":false,"given":"Sabina","family":"Regmi","sequence":"additional","affiliation":[{"name":"Department of Anesthesia and Intensive care, Neo Multispecialty Hospital, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9190-1757","authenticated-orcid":false,"given":"Vivek","family":"Gupta","sequence":"additional","affiliation":[{"name":"Department of Radiodiagnosis and Imaging, Postgraduate Institute of Medical Education and Research, India"},{"name":"Department of Neuro-interventional Radiology, Fortis Hospital, India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2023,12,26]]},"reference":[{"key":"bibr1-19714009231224412","first-page":"1741","volume":"27","author":"Cohnen M","year":"2006","journal-title":"AJNR Am J Neuroradiol"},{"key":"bibr2-19714009231224412","doi-asserted-by":"publisher","DOI":"10.1007\/s00234-009-0543-6"},{"key":"bibr3-19714009231224412","doi-asserted-by":"publisher","DOI":"10.3174\/ajnr.A3123"},{"key":"bibr4-19714009231224412","doi-asserted-by":"publisher","DOI":"10.1007\/s00247-006-0206-2"},{"key":"bibr5-19714009231224412","doi-asserted-by":"publisher","DOI":"10.1097\/00005537-199807000-00026"},{"key":"bibr6-19714009231224412","doi-asserted-by":"publisher","DOI":"10.1002\/cncr.23918"},{"key":"bibr7-19714009231224412","doi-asserted-by":"publisher","DOI":"10.1016\/j.icrp.2007.11.001"},{"key":"bibr8-19714009231224412","doi-asserted-by":"publisher","DOI":"10.1148\/radiol.2303021726"},{"key":"bibr9-19714009231224412","doi-asserted-by":"publisher","DOI":"10.1007\/s00330-010-1991-4"},{"key":"bibr10-19714009231224412","doi-asserted-by":"publisher","DOI":"10.1007\/s10554-010-9756-3"},{"key":"bibr11-19714009231224412","doi-asserted-by":"publisher","DOI":"10.2214\/AJR.09.2989"},{"key":"bibr12-19714009231224412","unstructured":"Bongartz G, Golding SJ, Jurik AG, et al. 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