[Assessment of cross-sectional area and diameter of carotid artery using time-of-flight MR angiography and CT angiography].
[Assessment of cross-sectional area and diameter of carotid artery using time-of-flight MR angiography and CT angiography].
复制标题
[利用飞行时间MR血管造影和CT血管造影评估颈动脉横截面积和直径]。
DOI：
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
T. Miyati
中科院分区：
文献类型：
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作者：
Eriko Yasuda;T. Miyati
目的
在颈动脉狭窄中，精确评估血管横截面积和直径非常重要，因为该结果决定了患者的治疗策略。我们研究的目的是使用飞行时间磁共振血管造影 (TOF-MRA) 和 X 射线 CT 血管造影 (CTA) 评估正常和狭窄颈动脉的血管尺寸。
方法和材料
TOF-MRA 和 CTA 数据是在 1.5-T MR 扫描仪（1.0 mm 切片厚度）和动态对比增强多探测器行 CT（0.5 mm 切片厚度）上使用 3D TOF-MRA 获得的。在 33 名正常患者（20 名男性，13 名女性，平均年龄 66.9±9.0 岁）和 18 名颈动脉狭窄患者（12 名男性，6 名女性，平均年龄 74.4±6.4 岁）中，我们使用 TOF-MRA 和 CTA 以及工作站的血管分析程序测量了血管横截面积以及颈内动脉和颈总动脉（ICA 和 CCA）的直径。
结果
使用 TOF-MRA 测定的正常 ICA 和 CCA 的平均横截面积和直径明显小于使用 CTA 测定的结果。使用 TOF-MRA 发现的面积和直径狭窄的百分比比使用 CTA 发现的高 7.7% 和 14.3%。在狭窄组的 6 例中，使用 TOF-MRA 显示狭窄动脉没有信号，但 CTA 描绘了它。
结论
在正常颈动脉和狭窄颈动脉中，TOF-MRA 比 CTA 更低估血管尺寸。
PURPOSE
In carotid artery stenosis, precisely assessing the vessel cross-sectional area and diameter is important because this result determines the treatment strategy for patients. The purpose of our study was to evaluate the vessel sizes of normal and stenotic carotid arteries using time-of-flight magnetic resonance angiography (TOF-MRA) and X-ray CT angiography (CTA).
METHOD AND MATERIALS
The TOF-MRA and the CTA data were obtained using 3D TOF-MRA on a 1.5-T MR scanner (1.0 mm slice thickness) and dynamic contrast-enhanced multi-detector row CT (0.5 mm slice thickness). In thirty-three normal patients (20 men, 13 women, mean age of 66.9±9.0 years) and eighteen patients with carotid artery stenosis (12 men, 6 women, mean age of 74.4±6.4 years), we measured the vessel cross-sectional areas and the diameters of the internal and common carotid arteries (ICAs and CCAs) using TOF-MRA and CTA and a vessel-analytic program of the workstation.
RESULTS
The mean cross-sectional areas and diameters of normal ICAs and CCAs determined using TOF-MRA were significantly smaller than those determined using CTA. The percentages of area and diameter stenoses found using TOF-MRA were 7.7 and 14.3% higher than those found using CTA. In six cases in the stenotic group, the stenotic artery showed no signal using TOF-MRA, but the CTA depicted it.
CONCLUSION
In both normal and stenotic carotid arteries, TOF-MRA underestimates vessel size more than CTA does.
影响因子：
158.5
作者：
Barnett, HJM;Taylor, W;Spence, JD
通讯作者：
Spence, JD