The electrical impedance tomography (EIT) is a bedside, non-invasive, non-radiation imaging tool for lung mornitoring. Currently, the EIT saline-contrast method for lung perfusion evaluation has been widely used in clinical. However, this technique requires the patient to hold breath for 8-30s to avoid the respiratory interference. Hence, it is not suitable for patients that can not tolerate breath hold or unable to maintain a steady apnoea. This study aims to develop an algorithm system based on low frequency band pass filter for EIT saline-contrast lung perfusion estimation without ventilation interruption, and investigate the correlation and agreement of EIT results between the novel method and the conventional breath-hold method.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
DIAGNOSTIC
Masking
SINGLE
Enrollment
22
Injection 10 mL of 10% NaCl through central venous catheter
Peking Union Medical College Hospital
Beijing, Beijing Municipality, China
Regional V/Q match
Time frame: Offline analysis, immediately after the saline injection procedure
Pixel-wise lung perfusion fraction
Time frame: Offline analysis, immediately after the saline injection procedure
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.