{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T06:43:56Z","timestamp":1777877036878,"version":"3.51.4"},"reference-count":16,"publisher":"SAGE Publications","issue":"6","license":[{"start":{"date-parts":[[2025,4,28]],"date-time":"2025-04-28T00:00:00Z","timestamp":1745798400000},"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":[[2025,12]]},"abstract":"<jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>Non-contrast cerebral computed tomography (NCCT) is one of the most frequently performed CT examinations. Photon-counting CT (PCCT) offers advantages in terms of noise reduction, higher spatial resolution, and inherent spectral information. PCCT available today allows NCCT to be performed with tube voltage of 120 or 140\u00a0kVp. This study evaluates the impact of tube voltage on image quality at an equivalent dose.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>76 patients with an NCCT with 120\u00a0kVp, 76 with 140\u00a0kVp, and 56 patients with slightly different effective tube current per group were included. Signal, noise, signal-to-noise ratio, gray\u2013white contrast, and contrast-to-noise ratio were determined using several regions of interest for different virtual monoenergetic image (VMI) levels and compared between dose-equivalent groups. An image quality rating of the clinically used virtual monoenergetic images (VMIs) 65\u00a0keV was performed.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      The VMI 65\u00a0keV images at 120\u00a0kVp exhibited reduced noise, improved gray\u2013white contrast, and improved contrast-to-noise ratio compared to 140\u00a0kVp (\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      &lt; .001). The density differences between cortical gray matter at different distances from calvaria were also lower with 120\u00a0kVp (\n                      <jats:italic toggle=\"yes\">p<\/jats:italic>\n                      &lt; .001). The rating of image quality showed no difference between 120\u00a0kVp and 140\u00a0kVp.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Currently, NCCT with a tube voltage of 120\u00a0kVp versus 140\u00a0kVp seems to achieve better image quality. However, further studies are required to evaluate possible advantages of 140\u00a0kVp, for example artifact reduction in the case of dense foreign materials or enhanced spectral possibilities, and regarding imaging of special intracranial pathologies.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/19714009251339079","type":"journal-article","created":{"date-parts":[[2025,4,28]],"date-time":"2025-04-28T16:08:03Z","timestamp":1745856483000},"page":"764-771","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":1,"title":["Influence of tube voltage on image quality in non-contrast photon-counting computed tomography of the head: Comparison of 120 kVp and 140 kVp"],"prefix":"10.1177","volume":"38","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5964-5669","authenticated-orcid":false,"given":"Denise","family":"Schoenbeck","sequence":"first","affiliation":[{"name":"Johannes Wesling University Hospital"},{"name":"Ruhr University Bochum"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jan Robert","family":"Kroeger","sequence":"additional","affiliation":[{"name":"Johannes Wesling University Hospital"},{"name":"Ruhr University Bochum"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Matthias Michael","family":"Woeltjen","sequence":"additional","affiliation":[{"name":"Johannes Wesling University Hospital"},{"name":"Ruhr University Bochum"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Julius Henning","family":"Niehoff","sequence":"additional","affiliation":[{"name":"Johannes Wesling University Hospital"},{"name":"Ruhr University Bochum"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Christoph","family":"Moenninghoff","sequence":"additional","affiliation":[{"name":"Johannes Wesling University Hospital"},{"name":"Ruhr University Bochum"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lukas","family":"Goertz","sequence":"additional","affiliation":[{"name":"University Hospital of Cologne"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jan","family":"Borggrefe","sequence":"additional","affiliation":[{"name":"Johannes Wesling University Hospital"},{"name":"Ruhr University Bochum"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Arwed Elias","family":"Michael","sequence":"additional","affiliation":[{"name":"Johannes Wesling University Hospital"},{"name":"Ruhr University Bochum"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2025,4,28]]},"reference":[{"key":"e_1_3_4_2_2","doi-asserted-by":"publisher","DOI":"10.1097\/RLI.0000000000000980"},{"key":"e_1_3_4_3_2","doi-asserted-by":"publisher","DOI":"10.1259\/bjr.20220544"},{"key":"e_1_3_4_4_2","doi-asserted-by":"publisher","DOI":"10.1097\/RLI.0000000000000984"},{"key":"e_1_3_4_5_2","doi-asserted-by":"publisher","DOI":"10.3390\/diagnostics12020265"},{"key":"e_1_3_4_6_2","first-page":"1","article-title":"Nonenhanced photon counting CT of the head: impact of the keV level, iterative reconstruction and calvaria on image quality in monoenergetic images","volume":"34","author":"Michael AE","year":"2023","unstructured":"Michael AE, Schoenbeck D, Woeltjen MM, et al. Nonenhanced photon counting CT of the head: impact of the keV level, iterative reconstruction and calvaria on image quality in monoenergetic images. Clin Neuroradiol 2023; 34: 1\u20139.","journal-title":"Clin Neuroradiol"},{"key":"e_1_3_4_7_2","doi-asserted-by":"publisher","DOI":"10.3174\/ajnr.A5402"},{"key":"e_1_3_4_8_2","doi-asserted-by":"publisher","DOI":"10.1148\/rg.2020200038"},{"key":"e_1_3_4_9_2","doi-asserted-by":"publisher","DOI":"10.1148\/radiol.2019182297"},{"key":"e_1_3_4_10_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00234-024-03308-z"},{"key":"e_1_3_4_11_2","doi-asserted-by":"publisher","DOI":"10.1177\/19714009241240056"},{"key":"e_1_3_4_12_2","doi-asserted-by":"publisher","DOI":"10.1097\/RLI.0000000000000418"},{"key":"e_1_3_4_13_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ejrad.2018.09.010"},{"key":"e_1_3_4_14_2","doi-asserted-by":"publisher","DOI":"10.1097\/00004728-199105000-00007"},{"key":"e_1_3_4_15_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0033-8389(22)01726-2"},{"key":"e_1_3_4_16_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ejmp.2020.10.030"},{"issue":"1","key":"e_1_3_4_17_2","first-page":"41","article-title":"Brain density and cerebrospinal fluid space size: CT of normal volunteers","volume":"2","author":"Cala LA","year":"1981","unstructured":"Cala LA, Thickbroom GW, Black JL, et al. Brain density and cerebrospinal fluid space size: CT of normal volunteers. AJNR Am J Neuroradiol 1981; 2(1): 41\u201347.","journal-title":"AJNR Am J Neuroradiol"}],"container-title":["The Neuroradiology Journal"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/19714009251339079","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/19714009251339079","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/19714009251339079","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T22:39:24Z","timestamp":1777588764000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/19714009251339079"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,4,28]]},"references-count":16,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2025,12]]}},"alternative-id":["10.1177\/19714009251339079"],"URL":"https:\/\/doi.org\/10.1177\/19714009251339079","relation":{},"ISSN":["1971-4009","2385-1996"],"issn-type":[{"value":"1971-4009","type":"print"},{"value":"2385-1996","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,4,28]]}}}