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In mechanics, work is done on an object when the force acting on it displaces the object. In thermodynamics, work done on a system can be estimated when the system's volume changes during any thermodynamic process.
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Respiratory volumes are crucial metrics, meticulously measured to quantify the air exchanged in and out of the lungs during various phases of the breathing cycle. These precise measurements are vital for assessing lung function, diagnosing respiratory conditions, and monitoring overall respiratory health. Each parameter provides specific insights into the mechanics of breathing and the functional capacity of the lungs.
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Related Experiment Video

Updated: Jan 27, 2026

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[Imaging before and after endoscopic lung volume reduction].

F Doellinger1, D C Theilig2, F Feldhaus2

  • 1Klinik für Radiologie, Charité Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Deutschland. felix.doellinger@charite.de.

Der Radiologe
|March 27, 2019
PubMed
Summary
This summary is machine-generated.

Lung volume reduction for emphysema offers surgical and endoscopic options. Treatment choice depends on individual patient anatomy and emphysema distribution, with radiologists crucial for planning and aftercare.

Keywords:
Endobronchial coilsEndobronchial valvesEndoscopyPulmonary emphysemaQuantitative computed tomography

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Area of Science:

  • Pulmonology
  • Thoracic Surgery
  • Radiology

Background:

  • Lung volume reduction (LVR) for symptomatic emphysema is an established treatment.
  • Surgical and endoscopic techniques have advanced, offering less invasive options.
  • No single LVR procedure is universally optimal due to patient-specific factors.

Purpose of the Study:

  • To review current endoscopic lung volume reduction techniques.
  • To outline radiologist's role in LVR treatment planning and follow-up.
  • To describe the decision-making process for LVR based on imaging results.

Main Methods:

  • Review of established and emerging endoscopic LVR procedures.
  • Discussion of high-resolution computed tomography (HRCT) interpretation for LVR.
  • Analysis of physician-radiologist communication in LVR treatment planning.

Main Results:

  • Various endoscopic techniques are available for LVR.
  • HRCT provides critical information for treatment selection and evaluation.
  • Radiologists are integral to successful LVR interventions.

Conclusions:

  • LVR treatment for emphysema requires personalized approaches.
  • Effective communication between physicians and radiologists is essential.
  • Radiological assessment guides the selection of appropriate LVR interventions.