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Conventional polyenergetic-images (PEI) and VMI at 40\u201370\u00a0keV (VMI\n                      <jats:sub>40\u201370<\/jats:sub>\n                      ) were reconstructed. Image noise and contrast-to-noise ratio (CNR) of RAV were quantified. VMI with the highest CNR was predefined as the best-VMI. Two radiologists evaluated four image series (PEI and best-VMI at LAP and PVP) separately for RAV visibility, accessory hepatic vein (AHV) assessability, and image noise using five-point scales (1\u2009=\u2009worst, 5\u2009=\u2009best). RAV detection and AHV assessability rates were compared among image series.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      In both enhancement phases, VMI\n                      <jats:sub>40\u201370<\/jats:sub>\n                      showed lower image noise and VMI\n                      <jats:sub>40\u201360<\/jats:sub>\n                      higher CNR than PEI (all\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.05), with VMI\n                      <jats:sub>40<\/jats:sub>\n                      providing the highest CNR and being designated as the best VMI. Compared to PEI at LAP, CNR was lower with PEI at PVP but higher with VMI\n                      <jats:sub>40<\/jats:sub>\n                      at PVP (both,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001). In subjective analysis, VMI\n                      <jats:sub>40<\/jats:sub>\n                      showed better scores than PEI for image noise (LAP: 4.0\u2009\u00b1\u20090.5 vs. 2.4\u2009\u00b1\u20090.6; PVP: 4.0\u2009\u00b1\u20090.6 vs. 2.5\u2009\u00b1\u20090.5) and RAV visibility (LAP: 4.5\u2009\u00b1\u20090.8 vs. 3.5\u2009\u00b1\u20090.8; PVP: 3.7\u2009\u00b1\u20091.0 vs. 2.6\u2009\u00b1\u20090.9) (all\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001). With PEI, the RAV detection rate was lower at PVP than at LAP (54.8% vs. 89.7%,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001). Use of VMI\n                      <jats:sub>40<\/jats:sub>\n                      at PVP achieved the same detection rate as PEI at LAP (89.7%,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u20091.0) and higher AHV assessability rate than PEI at PVP (96.8% vs. 80.2%,\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u20090.001).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>\n                      DLCT-VMI improved RAV assessments before AVS. Using VMI\n                      <jats:sub>40<\/jats:sub>\n                      for PVP provided RAV depiction equivalent to PEI at LAP and superior AHV assessability to PEI at PVP, suggesting its potential as a surrogate for dedicated multiphase CT.\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.1007\/s00261-025-05165-7","type":"journal-article","created":{"date-parts":[[2025,8,18]],"date-time":"2025-08-18T06:42:14Z","timestamp":1755499334000},"page":"1974-1985","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Dual-layer spectral detector CT for improved assessment of right adrenal vein in patients with primary aldosteronism"],"prefix":"10.1007","volume":"51","author":[{"given":"Ryuya","family":"Yoshida","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yasunori","family":"Nagayama","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takumi","family":"Esaki","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Taiga","family":"Matsumoto","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yoshitaka","family":"Tamura","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Soichiro","family":"Ishiuchi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Taihei","family":"Inoue","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daisuke","family":"Sakabe","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yasuaki","family":"Igarashi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Masafumi","family":"Kidoh","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Seitaro","family":"Oda","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Takeshi","family":"Nakaura","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hiro","family":"Kiyosue","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Toshinori","family":"Hirai","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2025,8,18]]},"reference":[{"key":"5165_CR1","doi-asserted-by":"publisher","first-page":"1245","DOI":"10.1093\/eurheartj\/eht534","volume":"35","author":"SF Rimoldi","year":"2014","unstructured":"Rimoldi SF, Scherrer U, Messerli FH (2014) Secondary arterial hypertension: when, who, and how to screen? 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