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第45卷第2期
               ·230 ·                            南 京    医 科 大 学 学         报                        2025年2月


                                       表2 AD组、IMH组与LIT组主动脉CT相关解剖参数比较
                     Table 2 Comparison of aortic CT anatomical parameters among AD group,IMH group,and LIT group (x ± s)

                          Parameter             AD group(n=120)   IMH group(n=52)    LIT group(n=40)     P
                Ascending aorta at the lesion
                  Maximal diameter(mm)              57.7 ± 8.4        51.7 ± 6.0       56.6 ± 12.6 #  <0.001
                  Minimal diameter(mm)              50.9 ± 7.4        47.3 ± 4.3       48.5 ± 11.8      0.013
                  Area(mm)                       2 323.0 ± 643.9   1 978.5 ± 387.6   2 250.8 ± 1127.7   0.015
                         2
                  Remodeling index                  1.14 ± 0.09       1.09 ± 0.06      1.18 ± 0.12 *#  <0.001
                Descending aorta
                  Maximal diameter(mm)              32.5 ± 5.9        34.8 ± 4.1       28.4 ± 5.5 *#  <0.001
                  Minimal diameter(mm)              29.9 ± 4.4        32.5 ± 3.8       26.3 ± 4.2 *#  <0.001
                  Area(mm)                        807.6 ± 267.0      942.5 ± 207.9    644.8 ± 238.2 *#  <0.001
                         2
                Ascending aorta without lesion
                  Maximal diameter(mm)              48.0 ± 6.9        46.9 ± 5.9       52.7 ± 11.9 *#  <0.001
                  Minimal diameter(mm)              45.2 ± 6.1        44.1 ± 5.3       46.0 ± 9.7       0.403
                  Area(mm)                       1 758.0 ± 471.4   1 690.0 ± 402.0   1 985.3 ± 883.6 *#  0.033
                         2
                                                                                               *#
                  Remodeling index                  1.06 ± 0.06       1.06 ± 0.05      1.15 ± 0.15    <0.001
                Aortic dilatation index at the lesion
                  Maximal diameter dilatation index  1.83 ± 0.41      1.50 ± 0.17      2.06 ± 0.57 *#  <0.001
                  Minimal diameter dilatation index  1.74 ± 0.40      1.47 ± 0.16      1.89 ± 0.53 *#  <0.001
                  Area dilatation index             3.16 ± 1.37       2.16 ± 0.48      3.79 ± 2.04 *#  <0.001
                                                               *
                                                                                           #
                 P represents the difference among groups;compared with the AD group,P < 0.05;compared with the control group,P < 0.05.
                                     表3 LIT临床因素及影像学特征参数的单因素和多因素回归分析
                    Table 3 Univariate and multivariate regression analysis of clinical factors and imaging characteristics of LIT

                                          LIT group  Control group         Univariate             Multivariate
                      Parameter
                                          (n=40)     (n=212)    OR(95%CI)     P    Accuracy(%)  OR(95%CI)  P
              Maximal diameter of the ascending  52.7 ± 11.9  34.4 ± 4.2  1.533  <0.001  94.4    1.852   <0.001
              aorta without lesion(mm,x ± s)                   (1.323-1.776)                 (1.454-2.359)
              Minimal diameter of the ascending  46.0 ± 9.7  32.5 ± 3.8  1.489  <0.001  92.5      -        -
              aorta without lesion(mm,x ± s)                   (1.308-1.696)
              Area of the ascending aorta without 1 985.3 ± 883.6 901.9 ± 213.7  1.007  <0.001  93.7  -    -
              lesion(mm ,x ± s)                                (1.004-1.009)
                     2
              Maximal diameter dilatation index  1.92 ± 0.56  1.49 ± 0.14  88.058  <0.001  90.5  0.003    0.010
              (x ± s)                                         (18.483-419.533)               (0.000-0.244)
              Minimal diameter dilatation index  1.79 ± 0.46  1.47 ± 0.14  112.336  <0.001  89.7  -        -
              (x ± s)                                         (20.014-630.512)
              Area diameter dilatation index  3.36 ± 1.78  2.12 ± 0.45  4.088  <0.001  90.1       -        -
              (x ± s)                                          (2.478-6.743)
              Hypertension[n(%)]           30(75.0)   73(34.4)     5.712    <0.001    84.1       6.433    0.035
                                                               (2.646-12.334)                (1.135-36.464)
              Thoracic aortic atherosclerosis  26(65.0)  63(29.7)  4.392    <0.001    84.1       9.068    0.015
              [n(%)]                                           (2.152-8.964)                 (1.539-53.439)


                                                                18%。与其他类型 AAS 类似,LIT 患者中男性的比
              3 讨 论
                                                                例较高;所有AAS患者中最常见的危险因素是高血
                  本研究证实,LIT 是一种少见但不容忽视的                         压 [19-20] ,LIT患者胸主动脉粥样硬化的比例明显高于
              AAS 类型  [16,18] ,本研究中,LIT 约占升主动脉 AAS 的            AD 患者以及正常对照组人群,所以控制血压及动
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