Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Sharon Portnoy"'
Autor:
Nabil Hussein, Pascal Voyer-Nguyen, Sharon Portnoy, Brandon Peel, Eric Schrauben, Christopher Macgowan, Shi-Joon Yoo
Publikováno v:
3D Printing in Medicine, Vol 6, Iss 1, Pp 1-9 (2020)
Abstract Background The structure of the valve leaflets and sinuses are crucial in supporting the proper function of the semilunar valve and ensuring leaflet durability. Therefore, an enhanced understanding of the structural characteristics of the se
Externí odkaz:
https://doaj.org/article/8130905d8f0f4e70937ae51b8dabfd62
Autor:
Davide Marini, Liqun Sun, Edgar Jaeggi, Christopher K. Macgowan, Julien Aguet, Mike Seed, Sharon Portnoy, J. F. P. van Amerom, G. Huang, Steven P. Miller, John Kingdom, Fu-Tsuen Lee, Jessie Mei Lim, Brahmdeep S. Saini
Publikováno v:
Ultrasound in Obstetrics & Gynecology. 58:824-836
OBJECTIVES To characterize, using magnetic resonance imaging (MRI), the distribution of blood flow and oxygen transport in human fetuses with subtypes of congenital heart disease (CHD) that present with neonatal cyanosis. METHODS Blood flow was measu
Autor:
Liqun Sun, Fu-tsuen Lee, Joshua F van Ameron, Sharon Portnoy, Jessie M Lim, Brahmdeep S Saini, Edgar Jaeggi, John C Kingdom, Christopher K Macgowan, Steven P Miller, Mike Seed
Publikováno v:
Circulation. 144
Introduction: Abnormal fetal growth and development are evident in patients with cyanotic congenital heart disease (cCHD). However, the relationship between growth and fetal oxygenation is unknown. We sought to investigate the relationship between fe
Autor:
Stacey L. Holman, Jack R. T. Darby, John Kingdom, Rory Windrim, Davide Marini, Jia Yin Soo, Sharon Portnoy, Janna L. Morrison, Mitchell C. Lock, Christopher K. Macgowan, Sunthara R. Perumal, Rachel M. Wald, Mike Seed, Brahmdeep S. Saini
Publikováno v:
The Journal of physiologyReferences. 599(10)
Key points Human placental function is evaluated using non-invasive Doppler ultrasound of umbilical and uterine artery pulsatility indices as measures of resistance in placental vascular beds, while measurement of placental oxygen consumption ( V O 2
Autor:
Liqun Sun, Jack R. T. Darby, Joshua F.P. van Amerom, Brahmdeep S. Saini, Sharon Portnoy, Stacey L. Holman, Mitchell C. Lock, John G. Sled, Janna L. Morrison, Jia Yin Soo, Mike Seed, Sunthara R. Perumal, Christopher K. Macgowan, John Kingdom
Publikováno v:
The Journal of physiologyReferences. 598(15)
KEY POINTS Human fetal Doppler ultrasound and invasive blood gas measurements obtained by cordocentesis or at the time of delivery reveal similarities with sheep (an extensively used model for human fetal cardiovascular physiology). Oxygen saturation
Autor:
Shi-Joon Yoo, Sharon Portnoy, Brandon Peel, Christopher K. Macgowan, Eric M. Schrauben, Pascal Voyer-Nguyen, Nabil Hussein
Publikováno v:
3D Printing in Medicine
3D Printing in Medicine, Vol 6, Iss 1, Pp 1-9 (2020)
3D Printing in Medicine, Vol 6, Iss 1, Pp 1-9 (2020)
Background The structure of the valve leaflets and sinuses are crucial in supporting the proper function of the semilunar valve and ensuring leaflet durability. Therefore, an enhanced understanding of the structural characteristics of the semilunar v
Publikováno v:
Magnetic Resonance in Medicine. 79:3194-3206
Purpose To characterize the magnetic susceptibility and relaxation times (T1 and T2) of fetal blood at 3 T as a function of the hematocrit (Hct) and oxygen saturation (sO2). Methods Susceptibility and relaxometry measurements were performed on cord b
Publikováno v:
Magnetic Resonance in Medicine. 78:2352-2359
This is the peer-reviewed version of the following article: Portnoy, S. , Seed, M. , Sled, J. G. and Macgowan, C. K. (2017), Non-invasive evaluation of blood oxygen saturation and hematocrit from T1 and T2 relaxation times: In-vitro validation in fet
Autor:
John G. Sled, Elaine Liu, Lisa M. Gazdzinski, Lindsay S. Cahill, Sharon Portnoy, Yu-Qing Zhou, C. David Mazer, Gregory M. T. Hare, Albert K. Y. Tsui, Andrea Kassner
Publikováno v:
Journal of Cerebral Blood Flow & Metabolism. 37:994-1005
Cerebral ischemia is a significant source of morbidity in children with sickle cell anemia; however, the mechanism of injury is poorly understood. Increased cerebral blood flow and low hemoglobin levels in children with sickle cell anemia are associa
Publikováno v:
Magnetic Resonance in Medicine. 77:1678-1690
Purpose To characterize the MRI relaxation properties of human umbilical cord blood at 1.5 Tesla. Methods Relaxometry measurements were performed on cord blood specimens (N = 88, derived from six caesarean deliveries) spanning a broad range of hemato