J. Brandberg

Aortic prosthetic valve design and size: relation to Doppler echocardiographic findings and pressure recovery- an in vitro study.

P. Ask, B. Wranne, O. Bech-Hanssen, 2000, Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography.

Blood flow visualization in immersive environment based on color Doppler images

Kunihiro Chihara, Per Ask, Tomohiro Kuroda, 2001, 2001 Conference Proceedings of the 23rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society.

Increased accuracy of echocardiographic measurement of flow using automated spherical integration of multiple plane velocity vectors.

P Ask, P. Ask, B. Janerot-Sjöberg, 1999, Ultrasound in medicine & biology.

Colour Doppler Flow Measurements using Surface Integration of Velocity Vectors (SIVV): effect of colour flow gain, pulse repetition frequency and number of imaging planes

B. J. Sjöberg, E. Sloth, M. Chew, 2008 .

Doppler flow measurement using surface integration of velocity vectors (SIVV): in vitro validation.

P. Ask, J. Hasenkam, E. Sloth, 2000, Ultrasound in medicine & biology.

Automated calculation of regrgitation from proximal 2D Doppler data

Matts Karlsson, Joakim Brandberg, Per Ask, 1996 .

Pediatric cardiac output measurement using surface integration of velocity vectors: An in vivo validation study

P. Ask, J. Hasenkam, E. Sloth, 2000, Critical care medicine.