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Hittade 2 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Mitral Ring Motion in Assessment of Left Ventricular Function

   Författare :Birger Wandt; Linköpings universitet; []
   Nyckelord :MEDICINE; MEDICIN;

   Sammanfattning : The motion of the mitral ring was studied with M-mode echocardiography using the apical four- and two-chamber views.With the purpose of obtaining adequate reference materials for mitral ring motion, 70 healthy subjects were studied. LÄS MER

3. 2. Testing of Doppler Ultrasound Systems

   Författare :Andrew Walker; Per Ask; Ivar Ringqvist; Bengt Wranne; Birger Wandt; Linköpings universitet; []
   Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

   Sammanfattning : Blood and tissue velocities are measured and analyzed in cardiac, vascular, and other applications of diagnostic ultrasound. Errors in system performance might give invalid measurements.We developed two moving string test targets and a rotating cylinder phantom (Doppler phantoms) to characterize Doppler ultrasound systems. LÄS MER