Results 31 to 40 of about 3,345,378 (306)

MRI of the lung (3/3)-current applications and future perspectives [PDF]

, 2011
BackgroundMRI of the lung is recommended in a number of clinical indications. Having a non-radiation alternative is particularly attractive in children and young subjects, or pregnant women.MethodsProvided there is sufficient expertise, magnetic ...
M. Both, Molinari, F., Mirsadraee, S., E. J. R. Van Beek, Molinari, F, Both, M, Beer, M., Bauman, G, Wild, J., Mirsadraee, S, Biederer, J, Hintze, C, Jürgen Biederer, J. Wild, S. Mirsadraee, Puderbach, M, Biederer, Jürgen, Wild, J, Bauman, G., M. Beer, M. Puderbach, Van Beek, E J R, Beer, M, Hintze, C., Both, M., G. Bauman, C. Hintze, Van Beek, EJR, F. Molinari, Van Beek, E. J. R., Puderbach, M.   +30 more
core   +2 more sources

Perfusion of the interventricular septum during ventilation with positive end-expiratory pressure (PEEP) [PDF]

, 1991
Objective: To determine whether regional hypoperfusion of the interventricular septum occurs during ventilation with positive end-expiratory pressure. Design: Animal study. Animals: Anesthetized, closed chest dogs (n = 8).
Schosser, Rudolf, Messmer, Konrad, Schwickert, Christiane, Zwißler, Bernhard, Spengler, Peter, Weiss, Michaela, Iber, Volker   +6 more
core   +1 more source

Pulmonary ventilation and perfusion assessed by electrical impedance tomography - Experimental studies in pigs [PDF]

, 2009
Pulmonary ventilation and perfusion and ventilation/perfusion (V/Q) matching determine gas exchange in every lung unit in the healthy state and in the pathologically altered lung. Mismatch of V and Q lead to hypoxaemia and hypercapnia and monitoring of V/
Fagerberg, Anneli, Stenqvist, Ola,, Fagerberg, Anneli,, Åneman, Anders,   +3 more
core   +1 more source

Relationship of ventilatory inefficiency and low cardiorespiratory fitness in the elderly: a retrospective observational study

Revista Brasileira de Geriatria e Gerontologia, 2019
Objectives : To check if ventilatory inefficiency is related to low cardiorespiratory fitness in the elderly and to identify the variable(s) of the cardiopulmonary exercise test (CPET) best suited to determining this relationship.
Murillo Frazão, Luciana Margarida de Santana Madruga França, Samarony Caio Moreno Bezerra, Paulo Eugênio Silva   +3 more
doaj   +2 more sources

Effects of PEEP on regional ventilation-perfusion mismatch in the acute respiratory distress syndrome

Critical Care, 2022
Purpose In the acute respiratory distress syndrome (ARDS), decreasing Ventilation-Perfusion $$\left( {{{\dot{V}} \mathord{\left/ {\vphantom {{\dot{V}} {\dot{Q}}}} \right.
Bertrand Pavlovsky, Antonio Pesenti, Elena Spinelli, Gaetano Scaramuzzo, Ines Marongiu, Paola Tagliabue, Savino Spadaro, Giacomo Grasselli, Alain Mercat, Tommaso Mauri   +9 more
doaj   +1 more source

Methodology for Ventilation/Perfusion SPECT [PDF]

, 2010
Ventilation/perfusion single-photon emission computed tomography (V/Q SPECT) is the scintigraphic technique of choice for the diagnosis of pulmonary embolism and many other disorders that affect lung function.
Neilly, B., Marika Bajc, Miniati, M., Mortensen, Jan, Jonson, B., Bajc, Marika, Jan Mortensen, Jonson, Björn, Brian Neilly, Miniati, Massimo, Björn Jonson, Neilly, Brian, Massimo Miniati, Bajc, M., Mortensen, J., Jonson, Björn,, Bajc, Marika,, Lund University.   +17 more
core   +1 more source

Variations Between Dose-Ventilation and Dose-Perfusion Metrics in Radiation Therapy Planning for Lung Cancer [PDF]

, 2020
PurposeCurrently, several active clinical trials of functional lung avoidance radiation therapy using different imaging modalities for ventilation or perfusion are underway. Patients with lung cancer often show ventilation-perfusion mismatch, whereas the
Kimura, Tomoki, Nakajima, Yujiro, Kadoya, Noriyuki, Yamamoto, Tokihiro, Hioki, Kazunari, Jingu, Keiichi   +5 more
core   +1 more source

Multiparametric MRI for organ quality assessment in a porcine Ex-Vivo lung perfusion system.

PLoS ONE, 2018
IntroductionEx-vivo lung perfusion (EVLP) is an emerging technique promising an expansion of the donor pool and improvements in the outcome after lung transplantation.
Julius Renne, Marcel Gutberlet, Andreas Voskrebenzev, Agilo Kern, Till Kaireit, Jan Hinrichs, Patrick Zardo, Gregor Warnecke, Marcus Krüger, Peter Braubach, Danny Jonigk, Axel Haverich, Frank Wacker, Jens Vogel-Claussen, Norman Zinne   +14 more
doaj   +1 more source

TNF receptor–related factor 3 inactivation promotes the development of intrahepatic cholangiocarcinoma through NF‐κB‐inducing kinase–mediated hepatocyte transdifferentiation

Hepatology, EarlyView., 2022
Abstract Background and Aims Intrahepatic cholangiocarcinoma (ICC) is a deadly but poorly understood disease, and its treatment options are very limited. The aim of this study was to identify the molecular drivers of ICC and search for therapeutic targets.
Yuto Shiode, Takahiro Kodama, Satoshi Shigeno, Kazuhiro Murai, Satoshi Tanaka, Justin Y. Newberg, Jumpei Kondo, Shogo Kobayashi, Ryoko Yamada, Hayato Hikita, Ryotaro Sakamori, Hiroshi Suemizu, Tomohide Tatsumi, Hidetoshi Eguchi, Nancy A. Jenkins, Neal G. Copeland, Tetsuo Takehara   +16 more
wiley   +1 more source

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