{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T00:34:05Z","timestamp":1777509245313,"version":"3.51.4"},"reference-count":26,"publisher":"SAGE Publications","issue":"7","license":[{"start":{"date-parts":[[2024,6,6]],"date-time":"2024-06-06T00:00:00Z","timestamp":1717632000000},"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":["Acta Radiol"],"published-print":{"date-parts":[[2024,7]]},"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Image quality and diagnostic accuracy in computed tomography angiography (CTA) reach their limits in imaging of below-the-knee vessels.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>To evaluate whether image quality in CTA of lower limbs is further improvable by combining side-separate reconstruction with a larger matrix size and whether resulting noise can be compromised with iterative reconstruction (IR).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Material and Methods<\/jats:title>\n                    <jats:p>From CTA of the lower extremities of 26 patients (5 women, 21 men; mean age\u2009=\u200968.5 \u00b1 10.3 years), the lower legs were reconstructed side-separately with different reconstruction algorithms and matrix sizes including filtered back projection (FBP) with a 512\u2009\u00d7\u2009512 matrix, FBP with a 1024\u2009\u00d7\u20091024 matrix, IR (SAFIRE) with a 512\u2009\u00d7\u2009512 matrix, and IR (SAFIRE) with a 1024\u2009\u00d7\u20091024 matrix. A total of 208 CT series were evaluated. Subjective image quality was assessed by two readers using a 5-point Likert scale. Image noise was assessed by measuring signal-to-noise and contrast-to-noise ratios.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Subjective image quality was rated significantly higher when using a 1024\u2009\u00d7\u20091024 matrix ( P\u2009&lt;\u20090.001) and could further be increased with IR. Vessel sharpness was rated significantly better with a larger matrix ( P\u2009&lt;\u20090.001). Visible and measured image noise was significantly higher with a 1024\u2009\u00d7\u20091024 matrix but could be reduced by using IR ( P\u2009&lt;\u20090.001), even to a level below FBP with a 512\u2009\u00d7\u2009512 matrix while reconstructing with a larger matrix ( P\u2009&lt;\u20090.001).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Image quality, image noise, and vessel sharpness can be further improved in CTA of the lower extremities with side-separate reconstruction using a 1024\u2009\u00d7\u20091024 matrix size and IR.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/02841851241258655","type":"journal-article","created":{"date-parts":[[2024,6,6]],"date-time":"2024-06-06T04:08:31Z","timestamp":1717646911000},"page":"774-783","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":3,"title":["CT angiography of the lower limbs: combining small field of view with large matrix size and iterative reconstruction further improves image quality of below-the-knee arteries"],"prefix":"10.1177","volume":"65","author":[{"ORCID":"https:\/\/orcid.org\/0009-0001-5268-0672","authenticated-orcid":false,"given":"Michael","family":"Scheschenja","sequence":"first","affiliation":[{"name":"Department of Diagnostic & Interventional Radiology, Philipps-University Marburg, Marburg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alexander","family":"K\u00f6nig","sequence":"additional","affiliation":[{"name":"Department of Diagnostic & Interventional Radiology, Philipps-University Marburg, Marburg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Simon","family":"Viniol","sequence":"additional","affiliation":[{"name":"Department of Diagnostic & Interventional Radiology, Philipps-University Marburg, Marburg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0008-2106-9548","authenticated-orcid":false,"given":"Moritz B","family":"Bastian","sequence":"additional","affiliation":[{"name":"Department of Diagnostic & Interventional Radiology, Philipps-University Marburg, Marburg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Joel","family":"Wessendorf","sequence":"additional","affiliation":[{"name":"Department of Diagnostic & Interventional Radiology, Philipps-University Marburg, Marburg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Andreas H","family":"Mahnken","sequence":"additional","affiliation":[{"name":"Department of Diagnostic & Interventional Radiology, Philipps-University Marburg, Marburg, 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