Delayed 3D IR FLASH for airway imaging in children: more than myocardial fibrosis assessment.

IF 4.2 1区 医学 Q1 CARDIAC & CARDIOVASCULAR SYSTEMS
Laura Acosta Izquierdo, Romina Dsouza, Ankavipar Saprungruang, Afsaneh Amirabadi, Mike Seed, Shi-Joon Yoo, Christopher Z Lam
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引用次数: 0

Abstract

Background: To investigate the ability of a delayed respiratory-navigated, electrocardiographically-gated three-dimensional inversion recovery-prepared flash low angle shot (3D IR FLASH) sequence to evaluate the lower airways in children undergoing routine cardiovascular magnetic resonance (CMR).

Methods: This retrospective study included pediatric patients (0-18 years) who underwent clinical CMR where a delayed 3D IR FLASH sequence was performed between July 2020 and April 2021. The airway image quality and extent of lower airway visibility was graded by two blinded readers using a four-point ordinal scale (0-3). Lower airway anatomical variants and abnormalities were recorded.

Results: 180 patients were included with a median age of 11.7 (4.6-15.3) years. 51/180 (28%) were under general anesthesia (GA). Overall, the median grading of airway image quality was 3 (2-3) and extent of lower airway visibility was 3 (3-3). Interrater agreement was almost perfect (κ = 0.867 and κ = 0.956, respectively). Image quality correlated with extent of lower airway visibility (r = 0.62, p < 0.01). Delayed 3D IR FLASH was able to characterize the segmental bronchi in 137/180 (76%) and lobar bronchi in 172/180 (96%) of patients. Lower airway abnormalities were identified in 37/180 (21%) of patients and in 33/129 (26%) with congenital heart disease (CHD). Identified abnormalities included tracheobronchial branching anomalies in 6/180 (3%), abnormal tracheobronchial situs in 6/180 (3%), and extrinsic vascular compression in 25/180 (14%).

Conclusions: Delayed 3D IR FLASH has excellent performance for evaluation of the lower airway anatomy and can simultaneously assess for myocardial late gadolinium enhancement. Lower airway abnormalities are not infrequently seen in children undergoing routine CMR for CHD.

用于儿童气道成像的延迟三维红外 FLASH:不仅仅是心肌纤维化评估。
背景:目的:研究延迟呼吸导航、心电图引导的三维反转恢复预处理闪光低角度拍摄(3D IR FLASH)序列对接受常规心血管磁共振(CMR)检查的儿童下呼吸道的评估能力:这项回顾性研究纳入了 2020 年 7 月至 2021 年 4 月期间接受延迟三维 IR FLASH 序列的临床 CMR 的儿童患者(0-18 岁)。气道图像质量和下气道可见度由两名盲人阅读者使用四点顺序量表(0-3)进行评分。记录下气道解剖变异和异常:共纳入 180 名患者,中位年龄为 11.7(4.6-15.3)岁。51/180(28%)名患者接受了全身麻醉(GA)。总体而言,气道图像质量的中位分级为 3(2-3)级,下气道可见度为 3(3-3)级。相互之间的一致性几乎完美(κ = 0.867 和 κ = 0.956)。图像质量与下气道可见度相关(r = 0.62,p < 0.01)。延迟三维红外 FLASH 能够描述 137/180 例(76%)患者的节段支气管和 172/180 例(96%)患者的叶支气管。在 37/180 例(21%)患者和 33/129 例(26%)患有先天性心脏病(CHD)的患者中发现了下气道异常。发现的异常包括 6/180 例(3%)气管支气管分支异常、6/180 例(3%)气管支气管位置异常和 25/180 例(14%)血管外压迫:延迟三维红外 FLASH 在评估下气道解剖结构方面表现出色,并能同时评估心肌晚期钆增强。下气道异常在因心脏疾病接受常规 CMR 检查的儿童中并不少见。
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来源期刊
CiteScore
10.90
自引率
12.50%
发文量
61
审稿时长
6-12 weeks
期刊介绍: Journal of Cardiovascular Magnetic Resonance (JCMR) publishes high-quality articles on all aspects of basic, translational and clinical research on the design, development, manufacture, and evaluation of cardiovascular magnetic resonance (CMR) methods applied to the cardiovascular system. Topical areas include, but are not limited to: New applications of magnetic resonance to improve the diagnostic strategies, risk stratification, characterization and management of diseases affecting the cardiovascular system. New methods to enhance or accelerate image acquisition and data analysis. Results of multicenter, or larger single-center studies that provide insight into the utility of CMR. Basic biological perceptions derived by CMR methods.
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