4 results about "Functional residual capacity" patented technology

A method for planning and guiding an endoscopic procedure includes obtaining a first scan of a chest cavity at near total lung capacity, obtaining a second scan of the chest cavity at near functional residual capacity, generating a virtual chest cavity based at least in part on the first scan and the second scan, defining one or more regions of interest (ROI) in the virtual chest cavity, determining a route to the one or more ROIs based on the virtual chest cavity, directing endoscope hardware through an airway to the one or more ROIs along the predetermined route, monitoring, by a processor, a real-time position of the endoscope hardware relative to an expected position along the predetermined route, and performing an examination of the one or more ROIs when the real-time position of the endoscope hardware corresponds to an expected ROI location.

This invention relates to the fields of biomedical engineering and animal physiological testing technology, specifically a method and device for detecting functional residual capacity (FRC) in animals. The method includes constructing a measurable airway circuit, which connects the animal's lungs to an airway of known volume in a sealed manner, forming a sealed container with a smaller volume measurement range. By injecting a quantitative amount of gas into this sealed container and measuring the pressure change inside the sealed container, the volume of the sealed container can be directly calculated, thus accurately obtaining the FRC result of the small animal.

A method for planning and guiding an endoscopic procedure is disclosed. The method includes obtaining a first scan of a thoracic cavity near a total lung volume, obtaining a second scan of the thoracic cavity near a functional residual volume, generating a virtual thoracic cavity based at least in part on the first scan and the second scan, defining one or more regions of interest (ROI) in the virtual thoracic cavity, and determining a path to the one or more ROIs based on the virtual thoracic cavity. The method includes directing endoscopic hardware through an airway to the one or more ROIs along the predetermined path, monitoring, by a processor, a real-time position of the endoscopic hardware relative to an expected position on the predetermined path, and when the real-time position of the endoscopic hardware corresponds to an expected ROI position, transmitting the one or more ROIs to the one or more ROIs. And checking the one or more ROIs (Region Of Interest).

A method for imaging a lung of a patient is provided. The method includes acquiring a full inspiration computed tomography (CT) scan of the lung to provide a total lung capacity (TLC) image and acquiring a functional residual capacity contrast enhanced multi-energy CT scan of the lung. The method further includes processing the functional residual capacity contrast enhanced multi-energy CT scan of the lung to generate a perfused blood volume (PBV) image and a virtual non-contrast (VNC) image. The method further includes registering the TLC image to at least one of the PBV and VNC images so as to provide a map of regional ventilation and to co-register local ventilation with blood perfusion, generating a lung performance metric using the co-registered images, and outputting the lung performance metric at a user interface of a computing device.