Right ventricular basal inflow and outflow tract diameters overestimate right ventricular size in subjects with sigmoid-shaped interventricular septum: a study using three-dimensional echocardiography

Okada, Kazunori; Kaga, Sanae; Tsujita, Kosuke et al.

International journal of cardiovascular imaging, 2019, 35(7), 1211-1219

Permalink : https://hdl.handle.net/2115/79004

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論文情報

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アクセス権
open access
URI
https://hdl.handle.net/2115/79004
タイトル
Right ventricular basal inflow and outflow tract diameters overestimate right ventricular size in subjects with sigmoid-shaped interventricular septum: a study using three-dimensional echocardiography
著者
Okada, Kazunori ; Kaga, Sanae ; Tsujita, Kosuke ; Sakamoto, Yoichi ; Masauzi, Nobuo ; Mikami, Taisei
著者名
Okada, Kazunori
e-Rad_Researcher
60630978
著者名
Kaga, Sanae
著者名
Tsujita, Kosuke
著者名
Sakamoto, Yoichi
著者名
Masauzi, Nobuo
e-Rad_Researcher
90250456
著者名
Mikami, Taisei
言語
英語
キーワード
Right ventricular size
Sigmoid septum
Three-dimensional echocardiography
発行日
2019-07-01
収録物名
International journal of cardiovascular imaging
巻(号)
35(7)
ページ
1211-1219
抄録
Sigmoid-shaped ventricular septum (SS), a frequently encountered minor abnormality in echocardiographic examinations of the elderly, may have some influence on RV shape. We aimed to determine the influence of SS on the accuracy of the 6 RV linear diameter measurements in the light of three-dimensional echocardiographic (3DE) RV volume. The aorto-septal angle (ASA) was measured in the parasternal long-axis view using two-dimensional echocardiography (2DE) as an index of SS in 70 patients without major cardiac abnormalities who were subdivided into 35 with SS (ASA ≤ 120°) and 35 without SS (NSS). We measured RV end-diastolic volume (RVEDV) using 3DE; in addition, using 2DE, we measured basal RV diameter, mid-cavity diameter, longitudinal diameter and end-diastolic area in the apical four-chamber view; proximal RV outflow tract (RVOT) diameter in the parasternal long-axis view; and proximal and distal RVOT diameters in the parasternal short-axis view. RVEDV did not differ between the SS and NSS groups. The SS group had greater basal RV diameter and proximal and distal RVOT diameters than the NSS group. RV mid-cavity diameter, longitudinal diameter, and end-diastolic area did not differ between the groups. Among the 2DE parameters of RV size, RV end-diastolic area was most strongly correlated with RVEDV (r = 0.67), followed by RV mid-cavity diameter (r = 0.58). When SS is present, the echocardiographic basal RV diameter and RVOT diameters overestimate RV size, and the measurement of RV end-diastolic area and mid-cavity diameter more correctly reflect 3D RV volume.
資源タイプ
学術雑誌論文
出版タイプ
Accepted Manuscript
権利情報
This is a post-peer-review, pre-copyedit version of an article published in International Journal of Cardiovascular Imaging. The final authenticated version is available online at: https://doi.org/10.1007/s10554-019-01536-6
PISSN
1569-5794
EISSN
1875-8312
NCID
AA11582413
関連情報
PMID
30684080
関連情報 (isVersionOf)
出版社版DOI
https://doi.org/10.1007/s10554-019-01536-6