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Kurokawa, Ryo; Maeda, Eriko; Mori, Harushi; Amemiya, Shiori; Sato, Jiro; Ino, Kenji; Torigoe, Rumiko; Abe, Osamu

Effect of bolus tracking region-of-interest position within the descending aorta on luminal enhancement of coronary arteries in coronary computed tomography angiography

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  • Medientyp: E-Artikel
  • Titel: Effect of bolus tracking region-of-interest position within the descending aorta on luminal enhancement of coronary arteries in coronary computed tomography angiography
  • Beteiligte: Kurokawa, Ryo; Maeda, Eriko; Mori, Harushi; Amemiya, Shiori; Sato, Jiro; Ino, Kenji; Torigoe, Rumiko; Abe, Osamu
  • Erschienen: Ovid Technologies (Wolters Kluwer Health), 2019
  • Erschienen in: Medicine
  • Sprache: Englisch
  • DOI: 10.1097/md.0000000000015538
  • ISSN: 0025-7974; 1536-5964
  • Schlagwörter: General Medicine
  • Entstehung:
  • Anmerkungen:
  • Beschreibung: <jats:sec> <jats:title>Abstract</jats:title> <jats:p>To compare coronary artery luminal enhancement in coronary computed tomography angiography (CCTA) between ventral and dorsal region-of-interest (ROI) bolus tracking in the descending aorta.</jats:p> <jats:p>The records of 165 consecutive patients who underwent CCTA with non-helical acquisition from July 2017 to March 2018 were retrospectively examined. We performed 320-row CCTA with bolus tracking [scan triggered at 260 HU in the descending aorta] and 133 patients were finally included. ROI was set in the ventral and dorsal halves of the descending aorta in 68 and 65 patients, respectively.</jats:p> <jats:p>Contrast arrival time was significantly shorter in the dorsal group (ventral: 21.8 ± 0.372 s; dorsal: 20.7 ± 0.369; <jats:italic toggle="yes">P</jats:italic> = .0295). The mean density of the proximal and distal RCA was significantly higher in the ventral group (proximal: ventral, 428.1 ± 6.95 HU; dorsal, 405.5 ± 7.72 HU, <jats:italic toggle="yes">P</jats:italic> = .0318; distal: ventral, 418.0 ± 9.29 HU; dorsal, 393.2 ± 9.46 HU, <jats:italic toggle="yes">P</jats:italic> = .0133).</jats:p> <jats:p>Dorsal bolus tracking ROI in the descending thoracic aorta significantly reduced preparation time and RCA CT values.</jats:p> </jats:sec>
  • Zugangsstatus: Freier Zugang