Results 61 to 70 of about 69,651 (314)

Unified Representation Learning for Efficient Medical Image Analysis [PDF]

Under Review 2020, 2020
Medical image analysis typically includes several tasks such as enhancement, segmentation, and classification. Traditionally, these tasks are implemented using separate deep learning models for separate tasks, which is not efficient because it involves unnecessary training repetitions, demands greater computational resources, and requires a relatively ...
arxiv  

Doppler Echocardiography [PDF]

Circulation, 1973
A range-gated pulsed Doppler flowmeter has recently been developed that measures the average velocity of blood flow within a small tear-drop shaped (4 mm by 2 mm) sample volume. Unlike the continuous wave Doppler, the distance from the transducer face to the sampling site can be continuously varied by a range adjustment knob.
Harold T. Dodge, Robert A. Lute, Steve L. Johnson, Donald W. Baker   +3 more
openaire   +2 more sources

Growth differentiation factor‐15 and N‐terminal pro‐BNP in acute heart failure with preserved ejection fraction

ESC Heart Failure, Volume 12, Issue 2, Page 888-899, April 2025.
Abstract Aims Heart failure with preserved ejection fraction (HFpEF) continues to be an increasingly common health problem associated with a high mortality rate. Elevated levels of Growth differentiation factor‐15 (GDF15) and N‐terminal pro‐brain natriuretic peptide (NT‐proBNP) are reportedly associated with poor clinical outcomes in a broad range of ...
Yoichiro Otaki, Tetsu Watanabe, Mari Shimizu, Shingo Tachibana, Junya Sato, Yuta Kobayashi, Harutoshi Tamura, Shigehiko Kato, Satoshi Nishiyama, Hiroki Takahashi, Takanori Arimoto, Masafumi Watanabe   +11 more
wiley   +1 more source

'Color Doppler stripes’ make it difficult to diagnose the severity of valvular heart diseases: a report of two cases

Cardiovascular Ultrasound
Background Echocardiography remains the reference-standard imaging technique for assessing valvular heart disease (VHD), but artifacts like the ‘color Doppler stripe’ can complicate diagnosis.
Yuichi Baba, Yuri Ochi, Juri Kawaguchi, Azumi Takiishi, Daigo Hirakawa, Toru Kubo, Naohito Yamasaki, Hiroaki Kitaoka   +7 more
doaj   +1 more source

Lean ZSF1 rats in basic research on heart failure with preserved ejection fraction

ESC Heart Failure, Volume 12, Issue 2, Page 1474-1478, April 2025.
Abstract Aims ZSF1 obese rats harbouring two mutant leptin receptor alleles (Leprcp and Leprfa) develop metabolic syndrome and heart failure with preserved ejection fraction (HFpEF), making them a widely used animal model in cardiometabolic research.
Petra Büttner, Antje Augstein, Mahmoud Abdellatif, André Lourenço, Adelino Leite‐Moreira, Inês Falcão‐Pires, Sarah Werner, Holger Thiele, Simon Sedej, Antje Schauer, Volker Adams   +10 more
wiley   +1 more source

Penilaian Severitas Regurgitasi Aorta

Majalah Kardiologi Indonesia, 2013
Aorta regurgitasi (AR) adalah salah satu gangguan katup yang sering ditemukan. Ekokardiografi merupakan salah satu alat bantu diagnostik yang sangat penting untuk mendiagnosa AR serta untuk menilai severitas dari AR. Di siniakan disampaikan metode-metode
Andre P Ketaren, Amiliana M Soesanto
doaj   +1 more source

Prevalence of transthyretin cardiac amyloidosis in undifferentiated heart failure with preserved ejection fraction

ESC Heart Failure, Volume 12, Issue 2, Page 1176-1182, April 2025.
Abstract Aims Transthyretin amyloid cardiomyopathy (ATTR‐CM) is an increasinglyrecognized cause of heart failure with preserved ejection fraction (HFpEF), which may be diagnosed non‐invasively using 99mTc 3,3‐diphosphono‐1,2‐propanodicarboxylic acid (DPD) scintigraphy‐based diagnostic criteria.
L. Healy, G. Giblin, A. Gray, N. Starr, L. Murphy, D. O'Sullivan, E. Kavanagh, C. Howley, C. Tracey, E. Morrin, A. McDaid, A. Clarke, J.O. O'Neill, E. Joyce, M. O'Connell, N. G. Mahon   +15 more
wiley   +1 more source

Metabolic abnormalities and reprogramming in cats with naturally occurring hypertrophic cardiomyopathy

ESC Heart Failure, Volume 12, Issue 2, Page 1256-1270, April 2025.
Abstract Background and aims The heart is a metabolic organ rich in mitochondria. The failing heart reprograms to utilize different energy substrates, which increase its oxygen consumption. These adaptive changes contribute to increased oxidative stress.
Qinghong Li, Max Homilius, Erin Achilles, Laura K. Massey, Victoria Convey, Åsa Ohlsson, Ingrid Ljungvall, Jens Häggström, Brittany Vester Boler, Pascal Steiner, Sharlene Day, Calum A. MacRae, Mark A. Oyama   +12 more
wiley   +1 more source

Evaluation of diagnostic power of tissue Doppler Echocardiography for Assessment of cardiac iron overload in patients with thalassemia major

International Journal of Hematology-Oncology and Stem Cell Research, 2012
Background and Aim: Iron overload in patients with thalassemia major is one of the most important complications of this disease and its cardiac complications are the most important causes of death in these patients.MRI T2 is the perfect device to assess ...
Reza Alizadeh, Leila Shokohi, Abes Ahmadi, Mehrnoosh Kowsarian, Hossein Karami, Rozita Jalalian, Mozhdeh Dabirian   +6 more
doaj  

Adaptation of a Mice Doppler Echocardiography Platform to Measure Cardiac Flow Velocities for Embryonic Chicken and Adult Zebrafish

Frontiers in Bioengineering and Biotechnology, 2019
Ultrasonography is the most widely used imaging technique in cardiovascular medicine. In this technique, a piezoelectric crystal produces, sends, and receives high frequency ultrasound waves to the body to create an image of internal organs.
Fatiha M. Benslimane, Maha Alser, Zain Z. Zakaria, Zain Z. Zakaria, Anju Sharma, Hana A. Abdelrahman, Huseyin C. Yalcin   +6 more
doaj   +1 more source