Results 201 to 210 of about 25,679 (251)

Evolution of Diaphragm Thickness during Mechanical Ventilation. Impact of Inspiratory Effort

American Journal of Respiratory and Critical Care Medicine, 2015
Diaphragm atrophy and dysfunction have been reported in humans during mechanical ventilation, but the prevalence, causes, and functional impact of changes in diaphragm thickness during routine mechanical ventilation for critically ill patients are unknown.To describe the evolution of diaphragm thickness over time during mechanical ventilation, its ...
Ewan C Goligher, Margaret S Herridge, Nuttapol Rittayamai   +2 more
exaly   +3 more sources

Measuring Diaphragm Thickness and Function Using Point-of-Care Ultrasound

Journal of Visualized Experiments, 2023
The diaphragm is the main component of the respiratory muscle pump. Diaphragm dysfunction can cause dyspnea and exercise intolerance, and predisposes affected individuals to respiratory failure. In mechanically ventilated patients, the diaphragm is susceptible to atrophy and dysfunction through disuse and other mechanisms.
Catherine A, Bellissimo, Idunn S, Morris, Jenna, Wong, Ewan C, Goligher   +3 more
openaire   +2 more sources

Importance of diaphragm thickness in amyotrophic lateral sclerosis patients with diaphragm pacing system implantation

Surgical Endoscopy, 2015
Severe respiratory failure develops as a result of the involvement of the respiratory muscles in patients with amyotrophic lateral sclerosis (ALS). Implantation of diaphragm pacing system (DPS) has been carried out on ALS patients since 2005 to avoid these situations, but the importance of diaphragm thickness has not yet been established clearly.We ...
TERTEMİZ, KEMAL CAN, Oz, DİDEM, Sanli, Bahar Agaoglu, ŞENGÜN, İHSAN ŞÜKRÜ, ŞANLI, AYDIN, KARAÇAM, VOLKAN, ÖZDEMİR, NEZİH, ÖZGEN ALPAYDIN, AYLİN, ÖZALEVLİ, SEVGİ   +8 more
openaire   +3 more sources

Ray-optical scattering by a thick waveguide diaphragm†

International Journal of Electronics, 1971
The solution for the far field diffracted by a slit in a thick conducting screen is utilized to find the scattering coefficients of a thick inductive diaphragm in a rectangular waveguide. The analytical results are shown to be in good agreement with numerical and experimental data.
S. C. KASHYAP, M. A. K. HAMID
openaire   +1 more source

Frequency response of waveguide filters with thick diaphragms†

International Journal of Electronics, 1972
Abstract The solution for tho far field diffraction by a slit in a thick conducting screen is utilized to find the scattering coefficients of a symmetric inductive waveguide diaphragm of finite thickness. The resulting equivalent circuit is employed to design a three cavity 0.5 dB pasaband ripple Tehebyseheff filter using thick waveguide diaphragms ...
S. C. KASHYAP, M. A. K. HAMID
openaire   +1 more source

Electromagnetic Wave Diffraction on a Metal Diaphragm of Finite Thickness

Lobachevskii Journal of Mathematics, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Regional variation in canine diaphragm thickness

Journal of Applied Physiology, 1991
To quantify the relationship between both regional and overall diaphragm morphometry and body weight in the dog, diaphragm thickness was measured in five regions of the costal diaphragm and three regions of the crural diaphragm in 40 healthy dogs (8-40 kg).
openaire   +2 more sources

Comparison of Diaphragm Thickness Measurements Among Postures Via Ultrasound Imaging

PM&R, 2016
AbstractBackgroundAssessment of diaphragm contraction may be useful for identifying impairments in patients with movement dysfunction involving trunk stabilization, respiration, or both. Real‐time ultrasound imaging is a readily available technology that can be used to quickly assess this aspect of diaphragm activity.
Nathan J, Hellyer, Nicholas M, Andreas, Andrew S, Bernstetter, Kathryn R, Cieslak, Gerad F, Donahue, Elizabeth A, Steiner, John H, Hollman, Andrea J, Boon   +7 more
openaire   +2 more sources

Electroacoustic transducer having a variable thickness diaphragm

The Journal of the Acoustical Society of America, 1986
To provide for good wide range frequency response utilizing only a single lightweight diaphragm in a peripherally-driven electroacoustic transducer, the diaphragm is made with a variable thickness. The region along the peripheral edge of the diaphragm is the thinnest portion of the diaphragm. From this peripheral edge, the thickness gradually increases
openaire   +1 more source