Volume 2 Issue 3
Jul.  2011
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Ling-yan KONG, Hua-dan XUE, Min SHENG, Yi-ning WANG, Wei LIU, Shuo LI, Bai-yan SU, Zheng-yu JIN. Aortic and Coronary Assessment in Retrospectively Electrocardiogramgated Thoracal-abdominal Dual-source Computed Tomographic Angiography of Aorta[J]. Medical Journal of Peking Union Medical College Hospital, 2011, 2(3): 227-232. doi: 10.3969/j.issn.1674-9081.2011.03.008
Citation: Ling-yan KONG, Hua-dan XUE, Min SHENG, Yi-ning WANG, Wei LIU, Shuo LI, Bai-yan SU, Zheng-yu JIN. Aortic and Coronary Assessment in Retrospectively Electrocardiogramgated Thoracal-abdominal Dual-source Computed Tomographic Angiography of Aorta[J]. Medical Journal of Peking Union Medical College Hospital, 2011, 2(3): 227-232. doi: 10.3969/j.issn.1674-9081.2011.03.008

Aortic and Coronary Assessment in Retrospectively Electrocardiogramgated Thoracal-abdominal Dual-source Computed Tomographic Angiography of Aorta

doi: 10.3969/j.issn.1674-9081.2011.03.008
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  • Corresponding author: JIN Zheng-yu Tel: 010- 65295441, E-mail:jin_zhengyu@163.com
  • Received Date: 2011-06-09
  • Publish Date: 2011-07-30
  •   Objective  To evaluate image quality of aortic and coronary arteries and radiation dose in retrospective electrocardiography (ECG) -gated thoracal-abdominal dual-source computed tomographic angiography (CTA) of aorta.  Methods  Totally 45 patients who underwent aorta CTA from December 2009 to Novem-ber 2010 were evaluated retrospectively. Among them 23 patients underwent retrospective ECG-gated thoracalabdominal dual-source CTA of aorta, while 22 underwent conventional non-ECG-gated aortic CTA. The attenuation and image noise of 4 parts of aorta (aortic root, aortic arch, abdominal aorta, and aortic bifurcation) were evaluated. Image quality of aortic root and coronary arteries were assessed using a 3-point scale. Attenuation, image noise, image quality, and radiation dose were compared between two groups who underwent different scan protocols.  Results  Attenuation of 4 different parts of aorta showed no significant difference between two groups (P > 0.05). Image noise was significantly lower in conventional non-ECG-gated group than in retrospective ECG-gated group (P=0.002). The percentage of patients with diagnostic image quality was high in retrospective ECG-gated group:aortic root, 100% (23/23); coronary artery, 83% (19/23), which was significantly higher than in conventional non-ECG-gated group; aortic root, 5% (1/22); coronary artery, 0% (0/22) (P < 0.001). The effective radiation dose was significantly higher in retrospective ECG-gated group than in conventional non-ECG-gated group (P=0.038).  Conclusions  Retrospective ECG-gated thoracal-abdominal dual source CTA of aorta provides well attenuated whole aorta, well displayed aortic root, and assessable coronary arteries. However, the effective radiation dose used in this mode is higher than that in conventional nonECG-gated aortic CTA.
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  • [1] Rubin GD. CT angiography of the thoracic aorta[J]. Semin Roentgenol, 2003, 38:115-134. doi:  10.1016/S0037-198X(03)00010-5
    [2] Lawler LP, Fishman EK. Multidetector row computed tomography of the aorta and peripheral arteries[J]. Cardiol Clin, 2003, 21:607-629. doi:  10.1016/S0733-8651(03)00087-0
    [3] Stolzmann P, Knight J, Desbiolles L, et al. Remodelling of the aortic root in severe tricuspid aortic stenosis:implications for transcatheter aortic valve implantation[J]. Eur Radiol, 2009, 19:1316-1323. doi:  10.1007/s00330-009-1302-0
    [4] Hertzer NR, Beven EG, Young JR, et al. Coronary artery disease in peripheral vascular patients. A classification of 1000 coronary angiograms and results of surgical management[J]. Ann Surg, 1984, 199:223-233. doi:  10.1097/00000658-198402000-00016
    [5] Hertzer NR. Fatal myocardial infarction following abdominal aortic aneurysm resection. Three hundred forty-three patients followed 6-11 years postoperatively[J]. Ann Surg, 1980, 192:667-673. doi:  10.1097/00000658-198019250-00013
    [6] Johnson TR, Nikolaou K, Becker A, et al. Dual-source CT for chest pain assessment[J]. Eur Radio, l 2008, 18:773-780. doi:  10.1007/s00330-007-0803-y
    [7] Schertler T, Scheffel H, Frauenfelder T, et al. Dual-source computed tomography in patients with acute chest pain:feasibility and image quality[J]. Eur Radiol, 2007, 17:3179-3188. doi:  10.1007/s00330-007-0724-9
    [8] Johnson TR, Nikolaou K, Wintersperger BJ, et al. Optimization of contrast material administration for electrocardiogram-gated computed tomographic angiography of the chest[J]. J Comput Assist Tomogr, 2007, 31:265-271. doi:  10.1097/01.rct.0000236421.35761.7a
    [9] Frauenfelder T, Appenzeller P, Karlo C, et al. Triple ruleout CT in the emergency department:protocols and spectrum of imaging findings[J]. Eur Radiol, 2009, 19:789-799. doi:  10.1007/s00330-008-1231-3
    [10] Morin RL. Monte carlo simulation in the radiological sciences[C]. Boca Raton: CRC Press, 1988.
    [11] Arturo E, Debabrata M, Rajendra H, et al. Acute intramural hematoma of the Aorta[J]. Circulation, 2005, 111:1063-1070. doi:  10.1161/01.CIR.0000156444.26393.80
    [12] Karlo C, Leschka S, Goetti RP, et al. High-pitch dualsource CT angiography of the aortic valve-aortic root complex without ECG-synchronization[J]. Eur Radiol, 2011, 21:205-212. doi:  10.1007/s00330-010-1907-3
    [13] 李宇, 范占明, 俞婧, 等.前瞻性心电门控320排容积CT对全主动脉和冠状动脉的一站式成像[J].中国医学影像技术, 2010, 26:1869-1872. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=zgyxyxjs201010022
    [14] Sommer WH, Clevert DA, Bamberg F, et al. Time-resolved Computed Tomography Imaging of the aorta A feasibility study[J]. J Thorac Imaging, 2010, 25:161-167. doi:  10.1097/RTI.0b013e3181d9c9de
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