A Technique of Lung Imaging Using Polarized Helium

2007 ◽  
Author(s):  
M. Florek ◽  
M. Kret ◽  
Carlos Granja ◽  
Claude Leroy ◽  
Ivan Stekl
Keyword(s):  
Lung Imaging ◽  
Polarized Helium

Functional Lung Imaging

2006 ◽  
Vol 187 (2) ◽  
pp. W246-W246
Author(s):  
Loren Ketai
Keyword(s):  
Lung Imaging ◽  
Functional Lung Imaging

Sci-Fri AM: Imaging - 04: SPECT-based functional lung imaging in the prediction of radiation pneumonitis: A retrospective clinical and dosimetric correlation

2012 ◽  
Vol 39 (7Part4) ◽  
pp. 4640-4641
Author(s):  
D Hoover ◽  
RH Reid ◽  
G Rodrigues ◽  
E Wong ◽  
L Stitt ◽  
...  
Keyword(s):  
Radiation Pneumonitis ◽  
Lung Imaging ◽  
Functional Lung Imaging

Global Inhomogeneity Index Evaluation of a DCT-based EIT Lung Imaging

2020 ◽  
Vol 6 (3) ◽  
pp. 36-39
Author(s):  
Rongqing Chen ◽  
Knut Möller
Keyword(s):  
Classical Method ◽  
Lung Imaging ◽  
Imaging Method ◽  
Reconstruction Method ◽  
Essential Information ◽  
Preliminary Results ◽  
Reconstruction Methods ◽  
Comparison Results ◽  
Index Evaluation ◽  
Inhomogeneity Index

AbstractPurpose: To evaluate a novel structural-functional DCT-based EIT lung imaging method against the classical EIT reconstruction. Method: Taken retrospectively from a former study, EIT data was evaluated using both reconstruction methods. For different phases of ventilation, EIT images are analyzed with respect to the global inhomogeneity (GI) index for comparison. Results: A significant less variant GI index was observed in the DCTbased method, compared to the index from classical method. Conclusion: The DCT-based method generates more accurate lung contour yet decreasing the essential information in the image which affects the GI index. These preliminary results must be consolidated with more patient data in different breathing states.

scholarly journals Coronavirus Disease 2019 in a Hemodialysis Patient

2020 ◽  
Vol 49 (6) ◽  
pp. 761-764 ◽  
Author(s):  
Hai Yuan ◽  
E. Guo ◽  
Zhao Gao ◽  
Fengqi Hu ◽  
Li Lu
Keyword(s):  
Mechanical Ventilation ◽  
Polymerase Chain Reaction ◽  
Hemodialysis Patient ◽  
Multiple Organ ◽  
Lung Imaging ◽  
Maintenance Hemodialysis ◽  
Multiple Organ Dysfunction ◽  
Chain Reaction ◽  
Pharyngeal Swab ◽  
Polymerase Chain

There has been a global outbreak of the coronavirus disease 2019 (COVID-19) since December 2019. Here, we describe the case of a 49-year-old male undergoing maintenance hemodialysis (HD) who got infected with COVID-19 and our experience in performing HD for him. The patient’s symptoms and lung imaging changes were atypical. However, his lymphocyte range decreased upon admission and the polymerase chain reaction of the pharyngeal swab for the ­COVID-19 nucleic acid was positive. The patient developed respiratory failure and required mechanical ventilation 8 days after admission. In the end, he died from multiple organ dysfunction syndrome. The difficulties in diagnosis, infection control, and treatment of COVID-19 in maintenance HD patients are discussed in this report.

Contribution of Ventilation and Perfusion Lung Imaging to the Management of Patients With Bronchiectasis

1994 ◽  
Vol 19 (4) ◽  
pp. 292-297 ◽  
Author(s):  
MOH??D K. H. MOHAMADIYEH ◽  
MR M ASHOUR ◽  
MAHMOUD EL-DESOUKI ◽  
SULAIMAN A. AL-MAJED
Keyword(s):  
Lung Imaging ◽  
Ventilation And Perfusion

scholarly journals Hyperpolarized 129Xe MRI: A viable functional lung imaging modality?

2007 ◽  
Vol 64 (3) ◽  
pp. 335-344 ◽  
Author(s):  
Samuel Patz ◽  
F. William Hersman ◽  
Iga Muradian ◽  
Mirko I. Hrovat ◽  
Iulian C. Ruset ◽  
...  
Keyword(s):  
Imaging Modality ◽  
Lung Imaging ◽  
Hyperpolarized 129Xe ◽  
Functional Lung Imaging

ID: 63: RAPID 3D PRECLINICAL QUANTITATIVE LUNG IMAGING WITH ULTRASHORT-ECHO TIME (UTE) MRI IN A MOUSE MODEL OF CYSTIC FIBROSIS LUNG DISEASE

2016 ◽  
Vol 64 (4) ◽  
pp. 975.1-975
Author(s):  
C Anderson ◽  
C Flask
Keyword(s):  
Cystic Fibrosis ◽  
Magnetic Resonance ◽  
Mouse Model ◽  
Lung Disease ◽  
Lung Tissue ◽  
Lung Imaging ◽  
Early Disease ◽  
Lung Anatomy ◽  
Echo Time ◽  
Regional Disease

Currently, the life expectancy for cystic fibrosis (CF) lung disease is less than 40 years due to decreasing lung function despite significant advances in the care and treatment of these patients. As patients live longer, the preservation of healthy lung tissue becomes of paramount importance to improve patient quality of life and increase life span. To do this, an understanding of the early disease processes is needed as is an ability to monitor the efficacy of therapeutic interventions early in life. CF lung disease, similar to other lung diseases, is a regional disease causing local dysfunction in the lung tissue and changes in lung anatomy. It is important for any monitoring or diagnostic tool to be sensitive to early regional disease which current methods (spirometry) are not. This lack of sensitivity to regional disease limits the ability of physicians and researchers to track the earliest stages of disease and assess treatment efficacy in these initial disease stages, ideally in infants and young children. Three dimensional imaging presents a unique solution to this problem by providing a non-invasive, volumetric investigation of the lung tissue. Computed tomography has long been the first choice in clinical lung imaging offering excellent resolution and fast imaging times but results in repeated exposure to ionizing radiation. Because the patient populations of interest are infants and children, avoidance of unnecessary, repeated radiation exposure during longitudinal monitoring is desirable. This combination of clinical and research need has led us to the exploration of rapid MRI techniques for lung imaging. We are interested in developing a novel, robust quantitative Magnetic Resonance Imaging technique that allows for 3D investigation of the lung tissue and is sensitive to early disease changes. Our hypothesis is that quantitative imaging will be able to detect changes in regional lung anatomy as an indication of early disease before disease is detected by standard methods. To accomplish this goal, we are proposing the implementation of multiple advanced quantitative MRI techniques including T1-mapping using Saturation-Recovery Look-Locker mapping and simultaneous multiple parameter mapping (combinations of T1, T2, T2*) using the recently developed Magnetic Resonance Fingerprinting method. An ultra-short echo time acquisition will be used to ensure imaging of the rapidly decaying MRI signal in the lung is possible. Using a radial acquisition, we plan to include an undersampled acquisition to reduce imaging time and generate an imaging method that is rapid and insensitive to patient motion. Our goal is to initially apply these quantitative measures in a mouse model of cystic fibrosis to establish the ability of the imaging methods to be sensitive to regional disease in CF mice. We expect to see changes in the quantitative parameters in areas that correspond to diseased areas of the lung upon histological investigation. These quantitative measurements should give unambiguous indications of disease and allow identification of changes in lung anatomy early in the disease process. This work will lay the foundation for translation of clinical CF monitoring in a pediatric population. Translational studies such as these will hopefully provide a measurement of disease progression and provide a new opportunity to evaluate early disease therapeutics offering insight into the earliest manifestations of CF lung disease.

scholarly journals Impact of Hydrogel Nanoparticle Size and Functionalization on In Vivo Behavior for Lung Imaging and Therapeutics

2009 ◽  
Vol 6 (6) ◽  
pp. 1891-1902 ◽  
Author(s):  
Yongjian Liu ◽  
Aida Ibricevic ◽  
Joel A. Cohen ◽  
Jessica L. Cohen ◽  
Sean P. Gunsten ◽  
...  
Keyword(s):  
Lung Imaging ◽  
Nanoparticle Size
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