Replacing fluoroscopy with ultrasound to evaluate diaphragm excursion? A method comparative study.

IF 0.8 Q4 RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING
Søren Helbo Skaarup, Peter Juhl-Olsen, Brian Bridal Løgstrup
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引用次数: 0

Abstract

Introduction: The diaphragm is the most important respiratory muscle and dysfunction ultimately leads to respiratory failure. Numerous conditions may affect its function. Evaluation of diaphragm function is cumbersome. Fluoroscopy has been used in many years to measure excursion. Ultrasound can visualize diaphragm excursion and holds many advantages due to is portability and accessibility. However, correlation between fluoroscopy and ultrasound has never been studied. Aims: We aimed to compare fluoroscopy and ultrasound measures of diaphragm excursion to study if ultrasound can replace fluoroscopy. Methods: In patients with COPD or heart failure and in volunteers ultrasound and fluoroscopy was done simultaneously during sniff inspiration and in inspiratory capacity. Cranio-caudal excursion was measured om fluoroscopy recordings and compared directly to M-mode excursion, B-mode excursion, area change, resting thickness, thickening fraction and contraction velocity measured by ultrasound. Results: Forty-two participants were recruited. Pearson´s correlation between M-mode and fluoroscopy excursion was 0.61. The slope was 0.9 (90%CI 0.76 – 1.04) in a regression analysis. Using Bland-Altman method the bias was -0.39 cm (95%CI -1.04 – 0.26), p=0.24 with an error estimate on 3.8%. The correlations were lower during sniff inspiration the in inspiratory capacity breathing. Conclusion: Ultrasound has acceptable and low bias compared to fluoroscopy and can replace it as the primary tool to evaluate diaphragm excursion.
用超声代替透视评估隔膜偏移?方法比较研究。
膈肌是最重要的呼吸肌,功能障碍最终会导致呼吸衰竭。许多情况都可能影响其功能。膜片功能的评估是繁琐的。荧光透视法用于测量偏移已经很多年了。超声可以可视化膜片偏移,由于其便携性和可及性,具有许多优点。然而,透视与超声之间的相关性从未被研究过。目的:我们的目的是比较透视和超声测量横膈膜偏移,以研究超声是否可以取代透视。方法:对慢性阻塞性肺病或心力衰竭患者和志愿者在吸气和吸气量时同时进行超声和透视检查。通过透视记录测量颅尾偏移,并直接与超声测量的m型偏移、b型偏移、面积变化、静息厚度、增厚分数和收缩速度进行比较。结果:招募了42名参与者。m型与透视偏移的Pearson相关系数为0.61。回归分析斜率为0.9 (90%CI 0.76 ~ 1.04)。使用Bland-Altman方法,偏差为-0.39 cm (95%CI -1.04 - 0.26), p=0.24,误差估计为3.8%。在吸气吸气时,相关性较低。结论:与透视相比,超声具有可接受的低偏倚,可取代其作为评估膈膜偏移的主要工具。
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来源期刊
Ultrasound
Ultrasound RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING-
CiteScore
1.70
自引率
0.00%
发文量
55
期刊介绍: Ultrasound is the official journal of the British Medical Ultrasound Society (BMUS), a multidisciplinary, charitable society comprising radiologists, obstetricians, sonographers, physicists and veterinarians amongst others.
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