Junior Researcher, Research Department of Radiation and Instrumental Diagnostics; Meshalkin National Medical Research Center of the Ministry of Health of the Russian Federation, 15 Rechkunovskaya St., Novosibirsk, 630055, Russia.
Head of the Research Department of Radiation and Instrumental Diagnostics; Meshalkin National Medical Research Center of the Ministry of Health of the Russian Federation, 15 Rechkunovskaya St., Novosibirsk, 630055, Russia.
Sovrem Tekhnologii Med. 2022;14(2):51-56. doi: 10.17691/stm2022.14.2.05. Epub 2022 Mar 28.
was to identify new anatomical landmarks of the aortic root and the relationship between the sizes of anatomical structures using the method of computed tomography angiography to improve models of heart valves and the methods for their selection in clinical practice.
The dataset of computed tomography angiography prior to aortic valve replacement in 262 patients was analyzed. The mean age was 75.0±5.9 years. 99 (37.8±3.0%) men and 163 (62.2±3.0%) women took part in the study. The annulus fibrosus, sinotubular junction, and height of the sinuses of Valsalva were measured.
In the tricuspid aortic valve group (n=251), in more than 50% of the cases, the diameter of the annulus fibrosus ranged from 23 to 26 mm. No significant association between the diameter of the annulus fibrosus and patient height (r=0.35; p=0.01) or body surface area (r=0.25; p=0.01) and the height of the sinuses of Valsalva (r=0.34; p=0.01) were revealed. Based on the ratio of the height of the sinuses of Valsalva and the diameter of the annulus fibrosus, three variants of the structure of the aortic root were identified: type A - >1.05; type B- 0.95≤≤1.05; type C- <0.95. Type C of the aortic root was found to predominate in most cases, namely, in 98.0±0.9% (n=246).In the bicuspid aortic valve group (n=11), 2 patients had a type A of the aortic root, 1 patient had a type B, and 8 patients had a type C.
A classification of variants of the aortic root structure has been proposed, which will be useful not only for practitioners when choosing a treatment method, but also for researchers to understand the structural characteristics of the aortic root in patients with its pathology.
利用计算机断层血管造影术的方法确定主动脉根部的新解剖学标志和解剖结构的大小关系，以改进心脏瓣膜模型，并改进临床实践中的选择方法。
对 262 例主动脉瓣置换术前的计算机断层血管造影数据集进行了分析。平均年龄为 75.0±5.9 岁。99 例（37.8±3.0%）为男性，163 例（62.2±3.0%）为女性。测量了纤维环、窦管交界和瓦氏窦高度。
在三尖瓣主动脉瓣组（n=251）中，超过 50%的病例纤维环直径在 23 至 26 毫米之间。纤维环直径与患者身高（r=0.35；p=0.01）或体表面积（r=0.25；p=0.01）之间无显著相关性，与瓦氏窦高度（r=0.34；p=0.01）之间也无显著相关性。根据瓦氏窦高度与纤维环直径的比值，确定了主动脉根部结构的三种变异型：A型，>1.05；B 型，0.95≤≤1.05；C 型，<0.95。在大多数情况下，发现 C 型主动脉根部占主导地位，即 98.0±0.9%（n=246）。在二叶主动脉瓣组（n=11）中，2 例患者为 A 型主动脉根部，1 例患者为 B 型，8 例患者为 C 型。
提出了一种主动脉根部结构变异的分类方法，这不仅对临床医生选择治疗方法有用，而且对研究人员了解主动脉根部在病理条件下的结构特征也有用。
