Results 51 to 60 of about 76,265 (275)

Shifted Windows Transformers for Medical Image Quality Assessment [PDF]

open access: yesarXiv, 2022
To maintain a standard in a medical imaging study, images should have necessary image quality for potential diagnostic use. Although CNN-based approaches are used to assess the image quality, their performance can still be improved in terms of accuracy.
arxiv  

Left Ventricular Assist Device Outflow Graft Obstruction: A Case Series.

open access: yesASAIO journal (1992), 2020
Dysfunction of different components within continuous-flow (CF) left ventricular assist device (LVAD) systems may cause adverse cardiovascular and end-organ sequelae. Outflow graft obstruction is a recognized type of LVAD component dysfunction.
S. Nathan   +11 more
semanticscholar   +1 more source

Noninvasive diagnosis of left ventricular outflow tract obstruction caused by a porcine mitral prosthesis [PDF]

open access: yes, 1987
A patient developed shortness of breath 8 years after mitral valve replacement with a porcine prosthesis. Doppler echocardiography revealed left ventricular outflow tract obstruction created by a protruding ...
Culliford, Alfred T.   +4 more
core   +1 more source

A Mass Causing Right Ventricular Outflow Obstruction - A Dreadful Complication [PDF]

open access: yesBrazilian Journal of Cardiovascular Surgery, 2019
The most common cardiac tumour in the pediatric age group is rhabdomyoma. These are usually located in the ventricles, either in the ventricular septum or free wall.
Rupesh Kumar, Javid Raja
doaj   +1 more source

Explainable Image Quality Assessment for Medical Imaging [PDF]

open access: yesarXiv, 2023
Medical image quality assessment is an important aspect of image acquisition, as poor-quality images may lead to misdiagnosis. Manual labelling of image quality is a tedious task for population studies and can lead to misleading results. While much research has been done on automated analysis of image quality to address this issue, relatively little ...
arxiv  

Transient dynamic left ventricular outflow tract obstruction

open access: yesJournal of the Indian Academy of Echocardiography & Cardiovascular Imaging, 2017
Dynamic left ventricular outflow (LVOT) obstruction has been classically described in patients with hypertrophic cardiomyopathy (HCM). The hypertrophy of the basal septum and systolic anterior motion of the mitral valve leaflet (SAM) cause dynamic LVOT ...
Gnanavelu Ganesan   +2 more
doaj   +1 more source

Subpulmonary membrane: A rare cause of right ventricular outflow tract obstruction

open access: yesAnnals of Pediatric Cardiology, 2023
Subpulmonary membrane is a rare cause of right ventricular outflow tract (RVOT) obstruction, and only a few case reports exist with or without associated ventricular septal defect. We report a series of three cases with subpulmonary membrane causing RVOT
Rajat Gupta   +2 more
doaj   +1 more source

Multi-epoch Sub-arcsecond [Fe II] Spectroimaging of the DG Tau Outflows with NIFS. II. On the Nature of the Bipolar Outflow Asymmetry [PDF]

open access: yes, 2014
The origin of bipolar outflow asymmetry in young stellar objects (YSOs) remains poorly understood. It may be due to an intrinsically asymmetric outflow launch mechanism, or it may be caused by the effects of the ambient medium surrounding the YSO. Answering this question is an important step in understanding outflow launching.
arxiv   +1 more source

Higher ventricular rate during atrial fibrillation relates to increased cerebral hypoperfusions and hypertensive events [PDF]

open access: yesScientific Reports, 9: 3779, 2019, 2019
Atrial fibrillation (AF) is associated with cognitive impairment/dementia, independently of clinical cerebrovascular events (stroke/TIA). One of the plausible mechanisms is the occurrence of AF-induced transient critical hemodynamic events; however, it is presently unknown, if ventricular response rate during AF may impact on cerebral hemodynamics.
arxiv   +1 more source

Feline Hypertrophic Cardiomyopathy: A Spontaneous Large Animal Model of Human HCM. [PDF]

open access: yes, 2017
Hypertrophic cardiomyopathy (HCM) is a common disease in pet cats, affecting 10-15% of the pet cat population. The similarity to human HCM, the rapid progression of disease, and the defined and readily determined endpoints of feline HCM make it an ...
Freeman, Lisa M   +4 more
core   +2 more sources

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