Abstract
Aortic dissection(AD) is a life-threatening disease due to a tear in the intimal layer of the aorta within the aortic wall. To compare diagnostic value and imaging of AD between computed tomography(CT) and magnetic resonance imaging (MRI). 120 AD patients diagnosed were examined with 64-slice CT and 1.5 MRI, the imaging data of true and false lumen, intimal flap, intimal tear, mural thrombus and aortic calcification were compared. The intimal flap rate of CT and MRI was 81.7% and 100%, respectively; The intimal tear rate of CT and MRI was 68.3% and 83.3%, respectively; The rate of mural thrombus in CT and MRI was 26.7% and 54.2%, respectively; The rate of aortic calcification in CT and MRI was 62.5% and 18.3%, respectively; The number of patients with intimal tear lower than 1mm in CT and MRI was 5 and 0, respectively. Both CT and MRI can show the true and false lumen well, but the detection rate of intimal flap, intimal tear and mural thrombosis in MRI is significantly higher than that in CT, and the detection rate of aortic calcification and intimal tear<1mm in CT is higher than that in MRI.
Highlights
Cardio- cerebrovascular diseases have become a high‐frequency disease
DeBakey type I Aortic dissection (AD) detected by computed tomography (CT) and magnetic resonance imaging (MRI) were both performed in 25 patients with a detection rate of 20.83% (P>0.05)
DeBakey type II AD detected by CT and MRI were both performed in 30 patients with a detection rate of 25% (P>0.05)
Summary
Common cardio- cerebrovascular diseases include cerebral hemorrhage, myocardial infarction, aortic aneurysms and aortic dissection (AD) (Omura et al, 2017; Acosta et al, 2019), in which the aortic dissection is known as a dissection aneurysm, an aortic wall-media hematoma or a hemorrhage (Subramanya et al, 2018). According to a recent report, without treatment, the hourly mortality rate of AD increases by 1% to 1.4%, resulting in 68% mortality rate within 48 h. Patients with type A dissection have the highest mortality rate, with a reported mortality rate of 58% in patients without surgery and 26% in patients with surgery. Patients with type B dissection have a lower mortality rate. The mortality rate of patients treated with medication is 11% lower than that of patients treated with surgery, and it is reported to be 31% (Pape et al, 2015). In order to reduce the morbidity and mortality of patients with clinically suspected AD, early and accurate diagnosis and decision-making on surgery or conservative intervention is essential
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