Results 81 to 90 of about 1,163,045 (290)

Investigating Data Memorization in 3D Latent Diffusion Models for Medical Image Synthesis [PDF]

arXiv, 2023
Generative latent diffusion models have been established as state-of-the-art in data generation. One promising application is generation of realistic synthetic medical imaging data for open data sharing without compromising patient privacy. Despite the promise, the capacity of such models to memorize sensitive patient training data and synthesize ...
arxiv  

Multi-delay arterial spin-labeled perfusion estimation with biophysics simulation and deep learning [PDF]

arXiv, 2023
Purpose: To develop biophysics-based method for estimating perfusion Q from arterial spin labeling (ASL) images using deep learning. Methods: A 3D U-Net (QTMnet) was trained to estimate perfusion from 4D tracer propagation images. The network was trained and tested on simulated 4D tracer concentration data based on artificial vasculature structure ...
arxiv  

Small‐Vessel Disease and Intracranial Large Artery Disease in Brain MRI Predict Dementia and Acute Coronary Syndrome, Respectively: A Prospective, Observational Study in the Population at High Vascular Risk

Journal of the American Heart Association: Cardiovascular and Cerebrovascular Disease
Background We aimed to clarify the predictive value of cerebral small‐vessel disease and intracranial large artery disease (LAD) observed in magnetic resonance imaging of the brain and magnetic resonance angiography on future vascular events and ...
Kazuo Kitagawa, Sono Toi, Megumi Hosoya, Hiroshi Yoshizawa   +3 more
doaj   +1 more source

The challenge to detect heart transplant rejection and transplant vasculopathy non-invasively – a pilot study

Journal of Cardiothoracic Surgery, 2009
Background Cardiac allograft rejection and vasculopathy are the main factors limiting long-term survival after heart transplantation. In this pilot study we investigated whether non-invasive methods are beneficial to detect cardiac allograft rejection ...
Helber Uwe, Schroeder Stephen, Aebert Hermann, Burgstahler Christof, Usta Engin, Kopp Andreas F, Ziemer Gerhard   +6 more
doaj   +1 more source

Coronary magnetic resonance angiography for the detection of coronary stenoses.

New England Journal of Medicine, 2001
BACKGROUND An accurate, noninvasive technique for the diagnosis of coronary disease would be an important advance. We investigated the accuracy of coronary magnetic resonance angiography among patients with suspected coronary disease in a prospective ...
W. Kim, P. Danias, M. Stuber, S. Flamm, S. Plein, E. Nagel, S. Langerak, O. Weber, E. M. Pedersen, M. Schmidt, René M. Botnar, W. Manning   +11 more
semanticscholar   +1 more source

Inter-observer agreement of the Coronary Artery Disease Reporting and Data System (CAD-RADS^{TM}) in patients with stable chest pain [PDF]

, 2018
Purpose: To assess inter-observer variability of the Coronary Artery Disease - Reporting and Data System (CAD-RADS) for classifying the degree of coronary artery stenosis in patients with stable chest pain.
Abdel Razek, Ahmed Abdel Khalek, Elrakhawy, Mohamed Magdy, Nageb, Hadeer Mohamed, Yossof, Mahmoud Mohamed   +3 more
core   +1 more source

Magnetic resonance angiography of pseudocoarctation [PDF]

Heart, 2004
A 40 year old woman presented with an abnormal chest radiograph without any symptoms. She had no history of hypertension. On examination she had a regular pulse and normal range of blood pressure measured at each extremity. The chest radiograph revealed a large mass …
Choi Bw, Choe Ko, Young Jin Kim
openaire   +3 more sources

Magnetic Resonance Perfusion or Fractional Flow Reserve in Coronary Disease.

New England Journal of Medicine, 2019
BACKGROUND In patients with stable angina, two strategies are often used to guide revascularization: one involves myocardial-perfusion cardiovascular magnetic resonance imaging (MRI), and the other involves invasive angiography and measurement of ...
E. Nagel, J. Greenwood, G. Mccann, N. Bettencourt, A. Shah, Shazia T. Hussain, D. Perera, S. Plein, C. Bucciarelli-Ducci, Matthias Paul, M. Westwood, M. Marber, W. Richter, V. Puntmann, C. Schwenke, J. Schulz-Menger, R. Das, J. Wong, D. Hausenloy, H. Steen, C. Berry   +20 more
semanticscholar   +1 more source

Assessment of minimally invasive direct coronary artery bypass grafting of the left internal thoracic artery by means of magnetic resonance imaging [PDF]

, 2005
ObjectivesWe sought to evaluate graft patency, flow, and flow reserve in patients with minimally invasive direct coronary artery bypass surgery of internal thoracic artery grafts by a combined magnetic resonance protocol with a phase-contrast technique ...
Claussen, Claus D., Fenchel, Michael, Kramer, Ulrich, Küttner, Axel, Miller, Stephan, Scheule, Albertus M., Stauder, Heidrun, Stauder, Norbert I.   +7 more
core   +1 more source

Clipping of spinal arteriovenous fistula of the filum terminale under intraoperative angiography guidance

Formosan Journal of Surgery, 2019
Arteriovenous fistula of the filum terminale (AVFFT) is an uncommon disease. We reported a case of this rare condition and we used intraoperative angiography to identify the completeness of fistula obliteration. A 53-year-old man presented with a history
Yun-Ju Lee, Kai-Chun Lin, Cheng-Chia Tsai, Hsin-Yao Lin   +3 more
doaj   +1 more source