Results 81 to 90 of about 30,963 (258)

“Two‐For‐One”: 4D Cardiac and Pulmonary MR Imaging From a Single Acquisition Using bSTAR

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To generate 4D (3D+time) images of both the heart and lungs using a single volumetric radial free‐breathing bSSFP dual echo acquisition (bSTAR) with two image reconstructions within a single pipeline deployed inline at 0.55 and 1.5 T.
Pierre Daudé, Jordan Taylor, Joseph W. Plummer, Rajiv Ramasawmy, Anastasia Tsakirellis, Joel Moss, W. Patricia Bandettini, Marcus Chen, Adrienne E. Campbell‐Washburn, Ahsan Javed   +9 more
wiley   +1 more source

Respiratory Morbidity and Peak Expiratory Flow Rate among Rice Mill Workers in a Rural Area of South India

National Journal of Community Medicine, 2017
Introduction: Workers in rice mills may suffer from exposure to grain dust and its adverse effects on various organs have been described. Pulmonary function tests have been beneficial in the early recognition of pulmonary dysfunctions.
Poonam R Naik, Abhay S Nirgude, Peddi Megana   +2 more
doaj  

The Impact of Pneumoperitoneum on Mean Expiratory Flow Rate: Observational Insights from Patients with Healthy Lungs

Diagnostics
Background/Objectives: Surgical pneumoperitoneum (PP) significantly impacts volume-controlled ventilation, characterized by reduced respiratory compliance, elevated peak inspiratory pressure, and an accelerated expiratory phase due to an earlier onset of
Lajos Bogár, Kamilla Domokos, Csaba Csontos, Balázs Sütő   +3 more
doaj   +1 more source

The effect of pregnancy on peak expiratory flow rate in comparison with non-pregnant Iraqi women Sample in MARJAN Teaching Hospital

مجلة كلية الطب, 2016
Background: Profound alterations of respiratory function physiology accompany pregnancy; these conditions contribute to many of the disorders of the lung during pregnancy. The adaptive changes during the gravid period are designed to support maternal and
Monqith A. Al Janabi, Ameerah J. Mohamed Ameen, Dalya A. Ali Al-Eqabi   +2 more
doaj   +1 more source

Fast Localized Calibration for Spatial‐Spectral Excitation Without Fly‐Back Gradients

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Standard spatial‐spectral excitation pulses apply a fly‐back gradient between sub‐pulses, limiting, for example, how thin the slices can be (> 4 mm). Without fly‐back gradients, slices can be as thin as 1.7 mm but require a phase calibration for the sub‐pulses with inverted gradients due to system imperfections.
Michael Schär, Sandeep K. Ganji, Robert G. Weiss, Allison G. Hays   +3 more
wiley   +1 more source

Flow 2.0: A Standardized Toolbox for Real‐Time Phase‐Contrast MRI of Neurofluid Dynamics

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Real‐time phase‐contrast MRI (RT‐PC) enables continuous quantification of physiological flow dynamics across multiple temporal frequencies, but its broader application is limited by complex and fragmented post‐processing workflows.
Pan Liu, Olivier Balédent
wiley   +1 more source

[Reproducibility of peak expiratory flow rate measured at home].

Nihon Kyobu Shikkan Gakkai zasshi, 1990
In 8 stable patients with chronic asthma, the reproducibility of peak expiratory flow rate (PEFR) measured and recorded 4 times per day for longer than 1 month at home and at work was assessed. Average %PEFRs of individuals through the periods observed were higher than 80%, and coefficients of variation were less than 10% regardless of the time ...
Nakashima, Akio, Ikeda, Kenji, Tsukino, Mitsuhiro, Ikeda, Akihiko, Fujita, Hiroshi   +4 more
openaire   +2 more sources

Image‐Derived Volumetry During Forced Expiration Using a 3D Fermat Looped, Orthogonally Encoded Trajectory

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To enable MRI‐based nongated 3D depiction of forced expiration with both high spatio‐temporal resolution and fidelity of lung dynamics. Methods An undersampled 3D Fermat looped, orthogonally encoded trajectory (FLORET) was optimized for nonsegmented dynamic acquisitions during forced expiration and a corresponding model‐based ...
Sebastian Scheidel, Viktor Hartung, Matthias Stephan Anders, Corona Metz, Herbert Köstler, Simon Veldhoen, Tobias Wech   +6 more
wiley   +1 more source

A cross-sectional study of association between peak expiratory flow rate and anthropometric obesity parameters in young Indian adult males

National Journal of Physiology, Pharmacy and Pharmacology
Background: Obesity increases the risk of and modifies the severity of various pulmonary illnesses. There is a variation in the published literature regarding the association between peak expiratory flow rate (PEFR) and anthropometric obesity parameters,
Viral I Champaneri, Rajesh G Kathrotia
doaj   +1 more source

Correlating Pulmonary Hemodynamics With HP 129Xe Dissolved‐Phase MRSI in a Controlled Porcine Intervention Study

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Pulmonary hypertension is related to a 1‐year mortality ranging from < 5% to > 20% in low‐ and high‐risk groups. Right heart catheterization is the diagnostic gold standard, associated with a 1.1% rate of severe adverse events, posing the need for a non‐invasive diagnostic tool.
Markus Phillip Andersen, Mattias Hedegaard Kristensen, Esben Søvsø Szocska Hansen, Rolf F. Schulte, Mohsen Redda, Uffe Kjærgaard, Michael Vaeggemose, Christoffer Laustsen   +7 more
wiley   +1 more source