天津医药 ›› 2024, Vol. 52 ›› Issue (7): 691-694.doi: 10.11958/20231770

• 专题研究·结缔组织病-间质性肺病/肺动脉高压(主编 魏蔚) • 上一篇    下一篇

心脏磁共振评估结缔组织病伴重度肺动脉高压的价值

武才鑫1(), 闫彦1, 邓瑗琳1, 杜雅敏1, 杨振文2, 潘晴3, 杨帆1,()   

  1. 1 天津医科大学总医院医学影像科(邮编300052),2心血管内科,3风湿免疫科
  • 收稿日期:2023-11-15 修回日期:2024-01-03 出版日期:2024-07-15 发布日期:2024-07-11
  • 通讯作者: E-mail:dr_yangfan0201@163.com
  • 作者简介:武才鑫(1997),女,硕士在读,主要从事心脏磁共振方面研究。E-mail:1132232177@qq.com
  • 基金资助:
    国家自然科学基金面上项目(82271937);天津市应用基础与前沿技术研究计划重点项目(22JCZDJC00500)

The value of cardiac magnetic resonance in evaluating severe pulmonary hypertension associated with connective tissue disease

WU Caixin1(), YAN Yan1, DENG Yuanlin1, DU Yamin1, YANG Zhenwen2, PAN Qing3, YANG Fan1,()   

  1. 1 Department of Radiology, 2 Department of Cardiovasology, 3 Department of Rheumatology, Tianjin Medical University General Hospital, Tianjin 300052, China
  • Received:2023-11-15 Revised:2024-01-03 Published:2024-07-15 Online:2024-07-11
  • Contact: E-mail:dr_yangfan0201@163.com

摘要:

目的 评估心脏磁共振(CMR)对重度结缔组织病相关肺动脉高压(CTD-PAH)患者的诊断价值。方法 纳入经右心导管(RHC)检查确诊为CTD-PAH的患者。在CMR图像上手动勾画并经体表面积校正获得右心室(RV)形态、功能及室间隔(IVS)的相关参数;在心肌延迟强化(LGE)图像上手动勾画并计算得到LGE心肌质量(MM)及其占左心室(LV)MM百分比。依照平均肺动脉压(mPAP)将其分为轻中度组和重度组,比较2组患者CMR参数差异,采用受试者工作特征(ROC)曲线分析CMR对重度患者的诊断价值。结果 本研究共纳入48例CTD-PAH患者。重度组患者室间隔曲率(CIVS)及RV射血分数(EF)低于轻中度组,IVS形变时间占比、RV舒张末期容积指数(EDVI)、RV收缩末期容积指数(ESVI)及RV MM高于轻中度组(均P<0.05)。ROC曲线分析显示RV MM、IVS形变时间占比及RV ESVI对重度患者具有较好的诊断效能(AUC分别为0.792、0.766、0.731)。联合检测曲线下面积为0.840,敏感度为79.4%,特异度为85.7%。结论 CMR测得的RV及IVS参数能够有效地评估重度CTD-PAH患者,从形态和功能学的角度直接反映了重度CTD-PAH患者的心脏受损程度。

关键词: 结缔组织疾病, 肺动脉高压, 磁共振成像, 室间隔, 右心功能

Abstract:

Objective To evaluate the diagnostic value of cardiac magnetic resonance (CMR) in patients with severe connective tissue disease-associated pulmonary hypertension (CTD-PAH). Methods A total of 48 patients diagnosed with CTD-PAH by right heart catheterization (RHC) in Tianjin Medical University General Hospital from June 2018 to July 2021 were retrospectively included. The parameters of right ventricular (RV) morphology, function and ventricular septum (IVS) were obtained by manual delineation on CMR images and corrected by body surface area. The late gadolinium enhancement (LGE) myocardial mass (MM) and its percentage in left ventricular (LV) MM were manually sketched and calculated on LGE images. The patients were divided into the mild-moderate group and the severe group according to mean pulmonary arterial pressure (mPAP). CMR parameters were compared between the two groups. The diagnostic value of CMR for severe CTD-PAH was analyzed by receiver operating characteristic (ROC) curve. Results A total of 48 patients with CTD-PAH were included in this study. The curvature of interventricular septum (CIVS) and RV ejection fraction (EF) were lower in the severe group than those in the mild-moderate group, and the time proportion of IVS deformation, RV end-diastolic volume index (EDVI), RV end-systolic volume index (ESVI) and RV MM were higher than those in the mild-moderate group (P<0.05). ROC curve analysis showed that RV MM, time proportion of IVS deformation and RV ESVI had better diagnostic efficacy in severe CTD-PAH patients (AUC was 0.792, 0.766 and 0.731, respectively). The combined AUC of the three parameters was 0.840, specificity was 85.7% and sensitivity was 79.4%. Conclusion The parameters of RV and IVS measured by CMR can effectively evaluate patients with severe CTD-PAH and directly reflect serverity of cardiac impairment in patients with severe CTD-PAH from the morphological and functional perspective.

Key words: connective tissue diseases, pulmonary arterial hypertension, magnetic resonance imaging, ventricular septum, right heart function

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