Sigmund Frigstad

Accurate and reproducible measurement of left ventricular volume and ejection fraction by contrast echocardiography

Siri Malm, Sigmund Frigstad, Einar Sagberg et al. · Journal of the American College of Cardiology · 2004 · 323 citations

Contrast Echocardiography, Heart Failure, Cardiovascular Disease +14

Super harmonic imaging: a new imaging technique for improved contrast detection

Ayache Bouakaz, Sigmund Frigstad, Folkert J. ten Cate et al. · Ultrasound in Medicine & Biology · 2002 · 231 citations

Super-resolution Imaging, High Resolution, Engineering +13

Real-time Simultaneous Triplane Contrast Echocardiography Gives Rapid, Accurate, and Reproducible Assessment of Left Ventricular Volumes and Ejection Fraction: A Comparison with Magnetic Resonance Imaging

Siri Malm, Sigmund Frigstad, Einar Sagberg et al. · Journal of the American Society of Echocardiography · 2006 · 46 citations

Heart Failure, Health Sciences, Cardiovascular Disease +13

Quantitative Adenosine Real-time Myocardial Contrast Echocardiography for Detection of Angiographically Significant Coronary Artery Disease

Siri Malm, Sigmund Frigstad, Hans Torp et al. · Journal of the American Society of Echocardiography · 2006 · 32 citations

Vascular Image, Health Sciences, Cardiovascular Disease +9

Automatic timing of aortic valve closure in apical tissue Doppler images

Svein Arne Aase, Asbjørn Støylen, Charlotte Björk Ingul et al. · Ultrasound in Medicine & Biology · 2005 · 31 citations

Radiology, Health Sciences, Medical Imaging +11