P Karłowicz

  • Citations Per Year
Learn More
A new phantom has been designed to gain a better understanding of tissue Doppler imaging (TDI). Specifically, the phantom can easily be used to determine myocardial velocity gradients. The phantom mimics the left ventricle and is made of fine-grade sponge material whose ultrasound image closely resembles the gray scale image obtained from heart walls.(More)
Contrast echocardiography and harmonic imaging (HI) are promising new modalities applied in order to obtain improved visualisation of the left ventricle. Perflenapent (EchoGen, Abbott) is a new generation echocardiographic contrast agent that crosses the pulmonary capillary bed and produces long-term ventricle opacification. Our aim was to assess the left(More)
This paper describes a method for detection of the maximum Doppler frequency from a histogram of Doppler signals (HDS). The performance of the system is described, and its behavior in analysis of noise signals that have known lower and upper cut off frequencies is discussed. Experimental investigations show that the device correctly measures the maximum(More)
  • 1