Results 181 to 190 of about 103,955 (369)

INDENTATION OF THE PELLICLE OF TETRAHYMENA AT THE CONTRACTILE VACUOLE PORE BEFORE SYSTOLE [PDF]

, 1969
Philip B. Dunham, L. C. Stoner
openalex   +1 more source

Toward optimal inline respiratory motion correction for in vivo cardiac diffusion tensor MRI using symmetric and inverse‐consistent deformable image registration

Magnetic Resonance in Medicine, EarlyView.
Abstract Purpose This study aims to develop a free‐breathing cardiac DTI method with fast and robust motion correction. Methods Two proposed image registration‐based motion correction (MOCO) strategies, MOCONaive and MOCOAvg, were applied to diffusion‐weighted images acquired with M2 diffusion gradients under free‐breathing.
Yuchi Liu, Danielle Kara, Thomas Garrett, Shi Chen, Daniel Wee, Ning Jin, Peter Speier, Hiroshi Nakagawa, Pasquale Santangeli, Michael A. Bolen, Oussama Wazni, Mazen Hanna, W. H. Wilson Tang, Animesh Tandon, Deborah Kwon, Xiaoming Bi, Christopher Nguyen   +16 more
wiley   +1 more source

Myocardial Perfusion Defects in Hypertrophic Cardiomyopathy Mutation Carriers

Journal of the American Heart Association, EarlyView., 2021
Background Impaired myocardial blood flow (MBF) in the absence of epicardial coronary disease is a feature of hypertrophic cardiomyopathy (HCM). Although most evident in hypertrophied or scarred segments, reduced MBF can occur in apparently normal segments.
Rebecca K. Hughes, Claudia Camaioni, João B. Augusto, Kristopher Knott, Ellie Quinn, Gabriella Captur, Andreas Seraphim, George Joy, Petros Syrris, Perry M. Elliott, Saidi Mohiddin, Peter Kellman, Hui Xue, Luis R. Lopes, James C. Moon   +14 more
wiley   +1 more source

A proof of concept treatment planning study of gated proton radiotherapy for cardiac soft tissue sarcoma

Physics and Imaging in Radiation Oncology, 2021
Background and Purpose: Few studies on radiotherapy of cardiac targets exist, and none using a gating method according to cardiac movement. This study aimed to evaluate the dose-volume advantage of using cardiac-respiratory double gating (CRDG) in terms ...
Hyeri Lee, Jennifer Pursley, Hsiao-Ming Lu, Judith Adams, Thomas DeLaney, Yen-Lin Chen, Kyung-Wook Jee   +6 more
doaj  

EFFECTS OF SELECTIVE MYOCARDIAL INACTIVATION ON LEFT VENTRICULAR FUNCTION DURING THE ISOVOLUMETRIC PHASE OF SYSTOLE [PDF]

, 1968
David E. Taylor, John D. Wade, Manmohan Singh Shishodia, C. F. Hider   +3 more
openalex   +1 more source

Assessment of Fetal Cardiac Geometry and Systolic Function in Fetuses With Ventricular Septal Defect During the Second Trimester Using Fetal Heart Quantification Technology

Prenatal Diagnosis, EarlyView.
ABSTRACT Objective This study aimed to assess the impact of ventricular septal defect (VSD) on fetal cardiac geometry and systolic function during the second trimester using Fetal Heart Quantification (Fetal HQ) technology. Methods In this prospective study, 91 fetuses with isolated VSD and 91 gestational age‐matched healthy controls were evaluated ...
Li Hou, Dongmei Zhang, Chunrong Li, Liuying Zhou, Shiyue Peng, Lixue Yin, Tongyong Luo   +6 more
wiley   +1 more source

Relation Between Left Ventricular Diastolic Pressure and Myocardial Segment Length and Observations on the Contribution of Atrial Systole [PDF]

, 1960
R. J. Linden, J. H. Mitchell
openalex   +1 more source

Nonlinear control of a hybrid pneumo‐hydraulic mock circuit of the cardiovascular system

International Journal of Robust and Nonlinear Control, EarlyView.
Abstract Hybrid cardiovascular mock circuits (HMC), designed for dynamic testing of Ventricular Assist Devices (VAD), offer physiologic accuracy by sequestering model complexity in silico and ease of construction by reducing number of model elements in vitro.
Ahmed Alhajyounis, Yiğit Aydoğan, Arda Canbaş, Emir Kulakoğlu, Umut Kurnaz, Levent Soysal, Mert Yiğit, Doğan Arısoy, Kamuran Kadıpaşaoğlu   +8 more
wiley   +1 more source

The Architecture of the Heart in Systole and Diastole [PDF]

, 1967
John Ross, Edmund H. Sonnenblick, James W. Covell, Gerard A. Kaiser, David Spiro   +4 more
openalex   +1 more source

Single local delivery of 5′‐(N‐ethylcarboxamido)adenosine depots ameliorates myocardial infarction‐induced cardiac dysfunction via the enhancement of mitostasis

VIEW, EarlyView.
To overcome the limitations of exogenous adenosine in myocardial ischemia treatment, an adenosine derivative 5′‐(N‐ethylcarboxamido) adenosine (NECA)‐loaded poly(lactic‐co‐glycolic acid) micro‐depots was fabricated for myocardial infarction (MI) therapy.
Shibo Wei, Tiep Tien Nguyen, Yan Zhang, Wonyoung Park, Nhu‐Nam Nguyen, Jiwoo Kim, Yunju Jo, Chang‐Myung Oh, Doyoun Kim, Jin Han, Ki‐Tae Ha, Jee‐Heon Jeong, Dongryeol Ryu   +12 more
wiley   +1 more source