{"title":"Optimal left ventricular diameter measurement in subjects with sigmoid septum: comparison with three-dimensional left ventricular volume.","authors":"Kazunori Okada, Masahiro Nakabachi, Yasuhiro Hayashi, Masaaki Shinagawa, Ayaka Yoshikawa, Kosuke Tsujita, Yoichi Sakamoto","doi":"10.1007/s12574-023-00626-8","DOIUrl":null,"url":null,"abstract":"<p><strong>Background: </strong>The purpose of this study was to determine the most appropriate measurement of left ventricular (LV) end-diastolic diameter for subjects with the sigmoid septum (SS) by measuring the LV end-diastolic diameter at the base and mid-ventricle and by examining the relationship between these measurements and the three-dimensional (3D) echocardiographic LV end-diastolic volume.</p><p><strong>Methods: </strong>In 91 patients who underwent echocardiography for screening cardiovascular abnormalities, the aorto-septal angle (ASA) was measured as an index of the sigmoid septum. LV end-diastolic diameter was measured at the base and mid-ventricular level (DD<sub>base</sub> and DD<sub>mid</sub>, respectively), and their average value was calculated (DD<sub>avg</sub>). By using 3D echocardiography, LV end-diastolic volume (EDV<sub>3D</sub>) was measured.</p><p><strong>Results: </strong>Among 91 patients, 48 patients had narrow ASA (< 120 degrees) and were divided into the sigmoid septum (SS) group, and the remaining 43 patients were divided into the non-SS group. In the SS group, all DD<sub>base</sub>, DD<sub>mid</sub>, and DD<sub>avg</sub> were significantly correlated with EDV<sub>3D</sub> (r = 0.59, 0.80, and 0.76, respectively), and the correlation coefficient between DD<sub>base</sub> and EDV<sub>3D</sub> was significantly lower than that between DD<sub>mid</sub> and EDV<sub>3D</sub> (p < 0.01). On the other hand, in the non-SS group, all DD<sub>base</sub>, DD<sub>mid</sub>, and DD<sub>avg</sub> were significantly correlated with EDV<sub>3D</sub> (r = 0.77, 0.85, and 0.84, respectively), and the correlation coefficient between DD<sub>base</sub> and EDV<sub>3D</sub> was statistically comparable to that between DD<sub>mid</sub> and EDV<sub>3D</sub> (p = 0.12). ASA was significantly correlated with the difference of DD<sub>mid</sub> minus DD<sub>base</sub> (r = - 0.71, p < 0.001).</p><p><strong>Conclusions: </strong>In patients with SS, DD<sub>mid</sub> and DD<sub>avg</sub> were well reflected the 3D echocardiographic LV end-diastolic volume.</p>","PeriodicalId":44837,"journal":{"name":"Journal of Echocardiography","volume":" ","pages":"41-47"},"PeriodicalIF":1.4000,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Echocardiography","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1007/s12574-023-00626-8","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2023/9/21 0:00:00","PubModel":"Epub","JCR":"Q3","JCRName":"CARDIAC & CARDIOVASCULAR SYSTEMS","Score":null,"Total":0}
引用次数: 0
Abstract
Background: The purpose of this study was to determine the most appropriate measurement of left ventricular (LV) end-diastolic diameter for subjects with the sigmoid septum (SS) by measuring the LV end-diastolic diameter at the base and mid-ventricle and by examining the relationship between these measurements and the three-dimensional (3D) echocardiographic LV end-diastolic volume.
Methods: In 91 patients who underwent echocardiography for screening cardiovascular abnormalities, the aorto-septal angle (ASA) was measured as an index of the sigmoid septum. LV end-diastolic diameter was measured at the base and mid-ventricular level (DDbase and DDmid, respectively), and their average value was calculated (DDavg). By using 3D echocardiography, LV end-diastolic volume (EDV3D) was measured.
Results: Among 91 patients, 48 patients had narrow ASA (< 120 degrees) and were divided into the sigmoid septum (SS) group, and the remaining 43 patients were divided into the non-SS group. In the SS group, all DDbase, DDmid, and DDavg were significantly correlated with EDV3D (r = 0.59, 0.80, and 0.76, respectively), and the correlation coefficient between DDbase and EDV3D was significantly lower than that between DDmid and EDV3D (p < 0.01). On the other hand, in the non-SS group, all DDbase, DDmid, and DDavg were significantly correlated with EDV3D (r = 0.77, 0.85, and 0.84, respectively), and the correlation coefficient between DDbase and EDV3D was statistically comparable to that between DDmid and EDV3D (p = 0.12). ASA was significantly correlated with the difference of DDmid minus DDbase (r = - 0.71, p < 0.001).
Conclusions: In patients with SS, DDmid and DDavg were well reflected the 3D echocardiographic LV end-diastolic volume.
期刊介绍：
The Journal of Echocardiography, the official journal of the Japanese Society of Echocardiography, publishes work that contributes to progress in the field and articles in clinical research as well, seeking to develop a new focus and new perspectives for all who are concerned with this discipline. The journal welcomes original investigations, review articles, letters to the editor, editorials, and case image in cardiovascular ultrasound, which will be reviewed by the editorial board. The Journal of Echocardiography provides the best of up-to-date information from around the world, presenting readers with high-impact, original work focusing on pivotal issues.
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