通过计算机断层扫描肺血管造影术测量左心房作为舒张功能障碍的预测指标
Left Atrium Measurements via Computed Tomography Pulmonary Angiogram as a Predictor of Diastolic Dysfunction.
作者信息
Lick Adam N, Danrad Raman, Smith David L, Lammi Matthew R
机构信息
From the *School of Medicine, †Department of Radiology, and ‡Department of Internal Medicine, Section of Pulmonary/Critical Care & Allergy/Immunology, Louisiana State University Health Sciences Center, New Orleans, LA.
出版信息
J Comput Assist Tomogr. 2017 Sep/Oct;41(5):792-797. doi: 10.1097/RCT.0000000000000597.
PURPOSE
Left atrium (LA) enlargement on echocardiography may be an indicator of diastolic dysfunction (DD). It is not well known if computed tomography pulmonary angiography (CTPA) can detect DD.
METHODS
A total of 127 patients who underwent both CTPA and echo within 48 hours were analyzed retrospectively. Left atrium diameters from CTPA were correlated with echo and evaluated against degrees of DD. Computed tomography pulmonary angiography pulmonary artery (PA)/aorta ratio was analyzed as a tool to detect pulmonary hypertension.
RESULTS
There were 42% of patients who had DD. There was a strong correlation between LA size on CTPA and echo (r = 0.78). An LA greater than 4.0 cm gave a sensitivity of 68.1% and specificity of 73.9% for DD detection. A PA/aorta cutoff greater than 0.84 yielded a sensitivity of 84% and specificity of 33% for pulmonary hypertension.
CONCLUSIONS
Computed tomography pulmonary angiography measurements of LA and PA/aorta ratio correlate strongly with equivalent findings on echo. We suggest that LA and PA/aorta measurements be included on chest CTPA reports.
目的
超声心动图显示的左心房（LA）增大可能是舒张功能障碍（DD）的一个指标。计算机断层扫描肺动脉造影（CTPA）能否检测出DD尚不清楚。
方法
回顾性分析了127例在48小时内同时接受CTPA和超声心动图检查的患者。CTPA测得的左心房直径与超声心动图结果进行相关性分析，并根据DD程度进行评估。分析CTPA肺动脉（PA）/主动脉比值作为检测肺动脉高压的一项指标。
结果
42%的患者存在DD。CTPA测得的LA大小与超声心动图结果之间存在强相关性（r = 0.78）。LA大于4.0 cm时，检测DD的敏感性为68.1%，特异性为73.9%。PA/主动脉比值大于0.84时，检测肺动脉高压的敏感性为84%，特异性为33%。
结论
CTPA测量的LA和PA/主动脉比值与超声心动图的相应结果密切相关。我们建议胸部CTPA报告中应包含LA和PA/主动脉测量值。
Zotero 插件