3D Xplane Echocardiographic Technique for Validation of Mitral Leaflet Separation to Assess Severity of Mitral Stenosis

被引:6
作者
Gokhroo, Rajendra K. [1 ]
Ranwa, Bhanwar L. [1 ]
Kishor, Kamal [1 ]
Priti, Kumari [1 ]
Avinash, Ananthraj [1 ]
Gupta, Sajal [2 ]
Bisht, Devendra [3 ]
机构
[1] JLN Med Coll, Postgrad Dept Cardiol, Ajmer, Rajasthan, India
[2] Escorts Heart Hosp, New Delhi, India
[3] ACE Heart & Vasc Inst, Mohali, Punjab, India
来源
ECHOCARDIOGRAPHY-A JOURNAL OF CARDIOVASCULAR ULTRASOUND AND ALLIED TECHNIQUES | 2016年 / 33卷 / 06期
关键词
3D Xplane echocardiography; mitral leaflet separation; planimetry; mitral valve area; correlation; validation; PRESSURE HALF-TIME; DOPPLER; AREA; CATHETERIZATION;
D O I
10.1111/echo.13183
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
BackgroundDetermining the severity of mitral stenosis (MS) is important for both prognostic and therapeutic implications. Mitral valve area (MVA) calculation techniques have more limitations. Mitral leaflet separation (MLS) is a precise and operator friendly alternative to planimetry. In contrast to previous researchers, we have used a novel 3D Xplane technique to validate MLS for assessing the severity of MS. 3D Xplane is superior for validation of MLS due to simultaneous real time acquisition of MLS in parasternal long-axis view and corresponding MVA by planimetry in parsternal short-axis view. MethodsIt was a prospective observational single center study. A total of 174 patients with MS were evaluated for MVA estimation by various echocardiographic modalities. Maximum leaflet separation and corresponding planimetered MVA were measured using novel 3D Xplane technique. ResultsWith 3D Xplane technique, there was strong positive correlation between planimetered MVA and MLS (R = 0.925, P < 0.001), irrespective of coexisting MR (R = 0.886, P < 0.001) or AF (R = 0.912, P < 0.001). Receiver operating characteristic curves of MLS demonstrated AUC for mild and severe MS to be 0.966 and 0.995, respectively. MLS less than 8.62 mm predicted severe MS with 95.5% sensitivity and 94.7% specificity and MLS more than 12.23 mm predicted mild MS with 93.2% sensitivity and 91.4% specificity. ConclusionIn our study, a strong correlation between planimetered MVA and MLS was found using 3D Xplane technique. 3D Xplane thus validates and standardizes MLS by excluding errors due to temporal and spatial variations which are important limitations of 2D echocardiography.
引用
收藏
页码:896 / 901
页数:6
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