Results 41 to 50 of about 61,398 (311)

In vivo MR imaging of pulmonary perfusion and gas exchange in rats via continuous extracorporeal infusion of hyperpolarized 129Xe. [PDF]

PLoS ONE, 2012
Hyperpolarized (HP) (129)Xe magnetic resonance imaging (MRI) permits high resolution, regional visualization of pulmonary ventilation. Additionally, its reasonably high solubility (>10%) and large chemical shift range (>200 ppm) in tissues allow HP (129 ...
Zackary I Cleveland, Harald E Möller, Laurence W Hedlund, John C Nouls, Matthew S Freeman, Yi Qi, Bastiaan Driehuys   +6 more
doaj   +1 more source

Hydrogel‐Based Airway‐on‐Tube With Perfusable Endothelial Lumen and Outward Epithelialization

Advanced Materials, EarlyView.
A hydrogel‐based airway‐on‐tube platform featuring a perfusable endothelial lumen and outward epithelialization is presented. The system supports primary human bronchial epithelial and lung microvascular endothelial coculture under air‐liquid interface conditions.
Ali Doryab, Jack F. Murphy, Michael Bartolf‐Kopp, Jenny C‐C Hsin, Alice Chernaik, Frank McCaughan, Yan Yan Shery Huang, Tomasz Jungst, Jürgen Groll   +8 more
wiley   +1 more source

Difference in the value of arterial and end-tidal carbon dioxide tension according to different surgical positions: Does it reliably reflect ventilation-perfusion mismatch? [PDF]

Korean Journal of Anesthesiology, 2012
BackgroundBody posture, as a gravitational factor, has a clear impact on pulmonary ventilation and perfusion. In lung units with mismatched ventilation and perfusion, gas exchange and/or elimination of carbon dioxide can be impaired.
Jin Joo, Young Hee Kim, Jaemin Lee, Jong Ho Choi   +3 more
doaj   +1 more source

Predictors of length of hospital stay in patients with acute COVID-19

Журнал инфектологии, 2023
The aim of the study was to identify the predictors of length of hospital stay in patients with acute COVID-19, based on the pathophysiological particularities of SARS.  Materials and methods: The study was conducted from December 2020 to May 2021 on 103
E. S. Pan’ko, S. V. Zhavoronok, A. M. Solovchuk, S. S. Pan’ko, S. V. Pan’ko   +4 more
doaj   +1 more source

Heart Rate Monitoring During Different Lung Volume Phases Using Seismocardiography

, 2018
Seismocardiography (SCG) is a non-invasive method that can be used for cardiac activity monitoring. This paper presents a new electrocardiogram (ECG) independent approach for estimating heart rate (HR) during low and high lung volume (LLV and HLV ...
Bomar, Andrew J, Mansy, Hansen A, Sandler, Richard H, Taebi, Amirtaha   +3 more
core   +1 more source

Non‐Invasive Multidimensional Capacitive Sensing for In Vivo Traumatic Brain Injury Monitoring

Advanced Materials Technologies, EarlyView.
Single‐electrode, multidimensional capacitive sensors noninvasively assess cerebral autoregulation and compliance for traumatic brain injury monitoring. ABSTRACT Traumatic brain injury (TBI) is a major cause of death and disability, but invasive intracranial pressure (ICP) monitoring is risky, and current non‐invasive methods lack the resolution and ...
Shawn Kim, Yu‐Jen Cheng, Tianyi Li, Nathan White, Xu Wang, Kristyn Ringgold, Lauren Neidig, Younghoon Kwon, Jae‐Hyun Chung   +8 more
wiley   +1 more source

Application of peripheral perfusion index in critically ill patients [PDF]

Jichu yixue yu linchuang
Peripheral perfusion index (PPI) is an Objective and reliable parameter reflecting the peripheral microcirculation through the ratio of local pulsatile to non-pulsatile blood flow.
CUI Yujian, LI Yuke, LI Shuangling, LI Nan
doaj   +1 more source

Lung Perfusion Assessment by Bedside Electrical Impedance Tomography in Critically Ill Patients

Frontiers in Physiology, 2021
As a portable, radiation-free imaging modality, electrical impedance tomography (EIT) technology has shown promise in the bedside visual assessment of lung perfusion distribution in critically ill patients.
Mengru Xu, Huaiwu He, Yun Long
doaj   +1 more source

Influence of 100% and 40% oxygen on penumbral blood flow, oxygen level, and T2*-weighted MRI in a rat stroke model [PDF]

, 2011
Accurate imaging of the ischemic penumbra is a prerequisite for acute clinical stroke research. T2* magnetic resonance imaging (MRI) combined with an oxygen challenge (OC) is being developed to detect penumbra based on changes in blood deoxyhemoglobin ...
Baskerville, Tracey, Deuchar, Graeme A., Holmes, William M., Macrae, I. Mhairi, McCabe, Chris, Robertson, Craig A., Santosh, Celestine   +6 more
core   +1 more source

Astrocyte Enrichment of 3D Cortical Constructs Enhances Brain Repair

Advanced Science, EarlyView.
This study highlights the role of astrocytes in supporting neural progenitor cell survival and differentiation after traumatic brain injury. Astrocytes enhanced neuronal differentiation, improved cell survival in co‐cultures, and promoted integration of microfluidics‐based implants with host tissue following implantation. Additionally, increased axonal
Elisa M. Cruz, Luana C. Soares, Gretchen Greene, Fernando Messore, Mohammed Abuelem, Mingyu Li, Caroline Andersen, Mirriam Domocos, Elisa Vitiello, Rabeah Abdul Razak, Marlene Lawston, Gabriel Moser, Talia Vasaturo‐Kolodner, Mona Barkat, Roslyn M. Bill, Edward Mann, Linna Zhou, Mootaz M. Salman, Hagan Bayley, Zoltán Molnár, Francis G. Szele   +20 more
wiley   +1 more source