肺部的沉默:比较缓慢和不通讯的肺部单位的测量,从肺功能测试与计算机断层扫描
Christopher Short1,2,3, Thomas Semple1,2,4, Mary Abkir1,2,3
1National Heart and Lung Institute, Imperial College London, London, United Kingdom.
Journal of applied physiology (Bethesda, Md. : 1985)
|August 8, 2024
概括
具有短延伸的多重呼吸洗 (MBWShX) 有效地识别了囊性纤维化中低通风的肺部单位 (UVLU),优于其他肺功能测试. 这种新的方法显示出对监测疾病进展的前景.
科学领域:
- 肺部生理学 肺部生理学
- 呼吸系统医学 呼吸系统医学
- 医疗成像医学成像
背景情况:
- 多重呼吸洗 (MBW) 评估肺功能,但仅限于交流的肺部区域.
- 评估"被困空气"的现有方法在灵敏度和方法上有所不同.
- 精确评估低通风肺部单位 (UVLU) 对于了解囊性纤维化肺病进展至关重要.
研究的目的:
- 与成像相比,评估MBW扩展在评估空气陷方面的有效性.
- 引入和验证一种新的MBW扩展 (MBWShX) 用于量化UVLU.
- 为了比较MBWShX与螺旋测量,身体囊造影和螺旋测量控制的CT (螺旋-CT).
主要方法:
- 25名患有囊性纤维化 (pwCF) 的人接受了MBW,螺旋测量,身体囊造影和螺旋CT.
- MBW被扩展了两个既定的5呼吸方法和一个新的MBWShX方法来评估空气陷.
- 使用Spiro-CT作为量化被困空气百分比的黄金标准.
主要成果:
- 源自MBWShX的UVLU显示出与螺旋CT被困空气百分比的最强一致性 (R S = 0.89,P < 0.0001).
- 与其他肺功能测试相比,MBWShX在检测UVLU方面显示出更高的灵敏度 (79%).
- 传统的螺旋测量和体缩仪在评估这种病理生理学方面是不理想的,5呼吸方法显著低估了被困气体体积.
结论:
- MBWShX是一种有前途的非成像方法,用于评估和监测pwCF中的UVLU.
- 该研究建议用"低通风肺部单位" (UVLU) 取代"被困空气"的术语,以获得更清晰的生理评估.
- MBWShX提供了一种敏感而准确的方法来评估驱动囊性纤维化肺病进展的关键特征.
相关概念视频
Pulmonary Function Tests
313
Pulmonary Function Tests (PFTs)
Pulmonary Function Tests are crucial diagnostic tools for assessing respiratory function, particularly in patients with chronic respiratory disorders. They comprehensively evaluate lung volumes, ventilatory function, breathing mechanics, diffusion, and gas exchange. These tests help diagnose pulmonary diseases and play a significant role in monitoring disease progression, evaluating disability, and assessing response to therapy.
PFTs involve using a spirometer, a...
Pulmonary Function Tests are crucial diagnostic tools for assessing respiratory function, particularly in patients with chronic respiratory disorders. They comprehensively evaluate lung volumes, ventilatory function, breathing mechanics, diffusion, and gas exchange. These tests help diagnose pulmonary diseases and play a significant role in monitoring disease progression, evaluating disability, and assessing response to therapy.
PFTs involve using a spirometer, a...
313
Computed Tomography
4.4K
Tomography refers to imaging by sections. Computed tomography (CT) is a non-invasive imaging technique that uses computers to analyze several cross-sectional X-rays to reveal minute details about structures in the body.
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
The technique was invented in the 1970s and is based on the principle that as X-rays pass through the body, they are absorbed or reflected at different levels. In the technique, a patient lies on a motorized platform while a computerized axial tomography (CAT) scanner rotates...
4.4K
Chronic Obstructive Pulmonary Disease-IV: Assessement and Diagnostic Studies
2.5K
Assessing and diagnosing Chronic Obstructive Pulmonary Disease (COPD) involves a detailed approach that includes a comprehensive review of medical history, physical examination, and a variety of diagnostic tests. This thorough evaluation is essential to ensure an accurate diagnosis and guide effective management strategies.
Medical History
Medical History
2.5K
Radiological Investigation III: Pulmonary Angiogram and PET Scan
89
Radiological investigations are paramount in the diagnosis and management of various pulmonary diseases. Two essential investigations are the Pulmonary Angiogram and the Positron Emission Tomography (PET) Scan.
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
89


