TY - JOUR
T1 - Multidetector-row computed tomographic angiography of thoracic and abdominal aortic aneurysms
T2 - Comparison of arterial enhancement with 3 different doses of contrast material
AU - Kubo, Shigeto
AU - Tadamura, Eiji
AU - Yamamuro, Masaki
AU - Kanao, Shotaro
AU - Kataoka, Milliam Lika
AU - Takahashi, Masaya
AU - Kimura, Takeshi
AU - Kita, Toru
AU - Komeda, Masashi
AU - Togashi, Kaori
PY - 2007
Y1 - 2007
N2 - 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.
AB - 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.
KW - Aortic aneurysm
KW - Contrast media
KW - Multidetector-row computed tomographic angiography
KW - Saline flush
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U2 - 10.1097/01.rct.0000237819.64419.d2
DO - 10.1097/01.rct.0000237819.64419.d2
M3 - Article
C2 - 17538290
AN - SCOPUS:34249808789
SN - 0363-8715
VL - 31
SP - 422
EP - 429
JO - Journal of computer assisted tomography
JF - Journal of computer assisted tomography
IS - 3
ER -