Multidetector-row computed tomographic angiography of thoracic and abdominal aortic aneurysms: Comparison of arterial enhancement with 3 different doses of contrast material

Shigeto Kubo, Eiji Tadamura, Masaki Yamamuro, Shotaro Kanao, Milliam Lika Kataoka, Masaya Takahashi, Takeshi Kimura, Toru Kita, Masashi Komeda, Kaori Togashi

Research output: Contribution to journalArticle

7 Scopus citations

Abstract

OBJECTIVE: To compare the quality of multidetector-row computed tomographic angiography in patients with and without aortic aneurysms by 3 different amounts of contrast media (CM). METHODS: A total of 115 patients with aortic aneurysms were divided into 3 groups: group A, 100 mL CM; group B, 75 mL CM with 20 mL saline flush (SF); and group C, 50 mL CM with 20 mL SF. Twenty-five patients without aortic aneurysms were also enrolled (group D, 50 mL CM with 20 mL SF). Quantitative and qualitative analyses were performed by measuring attenuation in thoracoabdominal/aortoiliac lumen, aneurysmal lumen, and superior vena cava. RESULTS: In group C, attenuation was lower in distal than those in proximal and middle areas (P < 0.05). Contrast enhancement in abdominal aneurysmal lumen was more inhomogeneous in group C (P = 0.003). Visual analysis showed contrast enhancement was more nonuniform in group C (P = 0.004), and perivenous artifacts were more conspicuous in group A (P < 0.0001). CONCLUSIONS: Seventy-five milliliters CM followed by 20 mL SF can produce optimal contrast enhancement at systemic multidetector-row computed tomographic angiography in patients with aortic aneurysms.

Original languageEnglish (US)
Pages (from-to)422-429
Number of pages8
JournalJournal of computer assisted tomography
Volume31
Issue number3
DOIs
StatePublished - May 1 2007

Keywords

  • Aortic aneurysm
  • Contrast media
  • Multidetector-row computed tomographic angiography
  • Saline flush

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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