Acta Academiae Medicinae Sinica

Acta Academiae Medicinae Sinica

Acta Academiae Medicinae Sinica ›› 2010, Vol. 32 ›› Issue (6): 666-670.doi: 10.3881/j.issn.1000-503X.2010.06.016

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Dual-source Computed Tomographic Angiography Using “Triple-rule-out” Protocols in Combination with Abdominal Computed TomographicAngiography for Evaluation of Aortic Dissection

SHENG Min, KONG Ling-yan, XUE Hua-dan, LIU Wei, WANG Yi-ning, CHEN Yu, JIN Zheng-yu   

  1. Department of Radiology, PUMC Hospital, CAMS and PUMC, Beijing 100730, China
  • Received:2010-11-12 Online:2010-12-20 Published:2010-12-20
  • Contact: JIN Zheng-yu E-mail:jin_zhengyu@163.com

Abstract: ObjectiveTo explore the clinical value of “triple-rule-out”protocols using dual-source computed tomography for aortic dissection (AD) assessment. MethodsTotally 25 patients suspecting of suffering from AD were examined on a dual-source computed tomography scanner. Two-dimensional and three-dimensional reconstruction was performed in all patients by means of multiplanar reconstruction, curved planar reformation, maximum intensity projection, and volume rendering. All images were read by two experienced radiologists in consensus. All patients were divided into AD group (n=12) and NO AD group (n=13) , The average Hounsfield unit values of true and false lumen were compared between superior of the aortic around the first endoleak and inferior of the aortic around renal artery. ResultsIn AD group, there were 6 patients with DeBakey type Ⅰ, 2 patients with DeBakey typeⅡ, and 4 patients with DeBakey type Ⅲ. The image quality was rated on a 3-point scale as “excellent” in 10 patients (83.3%) and “good” in 2 patients (16.7%) . All cases was fully evaluable in NO AD group. The average Hounsfield unit values of true lumen between superior of the aortic around the first endoleak and inferior of the aortic around renal artery showed no significant difference between AD and NO AD group. ConclusionDual-source computed tomography offers a non-invasive, accurate, and rapid way to evaluate AD.

Key words: aortic dissection, dual-source computed tomography, image quality

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