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首页> 外文期刊>International Journal of General Medicine >Relationship between incidentally detected calcification of the mitral valve on 64-row multidetector computed tomography and mitral valve disease on echocardiography
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Relationship between incidentally detected calcification of the mitral valve on 64-row multidetector computed tomography and mitral valve disease on echocardiography

机译：64行多排螺旋CT对二尖瓣钙化的偶然发现与超声心动图对二尖瓣病变的关系

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Background: Mitral valve calcification is often incidentally detected on chest computed tomography (CT) scans obtained for a variety of noncardiac indications. In this study, we evaluated the association between mitral valve calcification incidentally detected on chest CT and the presence and severity of mitral valve disease on echocardiography.Methods: Of 760 patients undergoing 64-row multidetector CT of the chest, 50 with mitral valve calcification and 100 controls were referred on for echocardiography. Calcifications of the mitral valve leaflet and annulus were assessed for length, Agatston score, and site, and were compared with echocardiographic findings.Results: Mitral valve calcification was noted in 59 (7.7%) patients on multidetector CT. Fifty of these patients were assessed by echocardiography, and 32 (64%) were found to have mitral annular calcification. Nine patients (18%) had posterior mitral valve leaflet calcification, and both mitral valve leaflet and annular calcification were detected in nine (18%) cases. Nine (18%) patients had mild, three (6%) had moderate, and one (2%) had severe mitral stenosis. None of the patients with isolated mitral annular calcification had mitral stenosis; however, all the patients with mitral stenosis showed mitral valve leaflet calcification with or without mitral annular calcification (P < 0.001). Moreover, patients with mitral stenosis had a larger mitral calcification length and greater Agatston scores in comparison with those without mitral stenosis (P = 0.001). While 31 patients (62%) with mitral calcification had mitral regurgitation on echocardiography, 21 (21%) in the control group showed mitral regurgitation (P = 0.001).Conclusion: Mitral valve leaflet calcification, with or without annular calcification, may be an indicator of mitral stenosis. Mitral calcification can also be considered as an indicator for mitral regurgitation in general. Therefore, patients with mitral valve calcification detected incidentally on chest CT scan may benefit from functional assessment of the valve using echocardiography.
机译：背景：二尖瓣钙化常常是在胸部CT扫描中偶然发现的，这些扫描是针对各种非心脏适应症而获得的。在这项研究中，我们评估了在胸部CT上偶然发现的二尖瓣钙化与超声心动图上二尖瓣疾病的存在与严重程度之间的相关性。方法：在760例行64行多排CT胸部检查的患者中，有50例二尖瓣钙化和将100名对照进行超声心动图检查。评估二尖瓣小叶和瓣环的钙化的长度，Agatston评分和部位，并与超声心动图检查结果进行比较。结果：在59例（7.7％）的多探测器CT上发现二尖瓣钙化。通过超声心动图评估这些患者中的50例，发现32例（64％）患有二尖瓣环钙化。二尖瓣后叶钙化的患者有9例（18％），其中9例（18％）检出了二尖瓣小叶和环形钙化。 9例（18％）患者为轻度，3例（6％）为中度，1例（2％）为严重的二尖瓣狭窄。孤立性二尖瓣环钙化的患者均无二尖瓣狭窄。然而，所有二尖瓣狭窄患者均显示有或无二尖瓣环钙化的二尖瓣小叶钙化（P <0.001）。此外，与没有二尖瓣狭窄的患者相比，二尖瓣狭窄的患者具有更大的二尖瓣钙化长度和更大的Agatston评分（P = 0.001）。二尖瓣钙化的31例患者（62％）经超声心动图检查发现二尖瓣反流，对照组21例（21％）表现为二尖瓣反流（P = 0.001）。结论：二尖瓣小叶钙化伴或不伴环形钙化可能是二尖瓣狭窄的指标。二尖瓣钙化通常也可被视为二尖瓣反流的指标。因此，胸部CT扫描偶然发现二尖瓣钙化的患者可能会受益于使用超声心动图检查对瓣膜进行功能评估。

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