Transcranial perfusion sonography using a low mechanical index and pulse inversion harmonic imaging: reliability, inter-/intraobserver variability.

@article{Harrer2011TranscranialPS,
  title={Transcranial perfusion sonography using a low mechanical index and pulse inversion harmonic imaging: reliability, inter-/intraobserver variability.},
  author={Judith U. Harrer and Jurgita Valaikiene and Hannj{\"o}rg Koch and Rudolf Knorr and Marianna Horn and G. W. Ickenstein and U. Bogdahn and Felix Schlachetzki},
  journal={Ultraschall in der Medizin},
  year={2011},
  volume={32 Suppl 1},
  pages={
          S95-101
        }
}
PURPOSE Transcranial perfusion sonography (TPS) is an emerging noninvasive bedside method for evaluating brain perfusion. The purpose was to assess the feasibility of a low MI/almost real-time frame rate approach and to test its intra-/interobserver variability. MATERIALS AND METHODS 10 healthy volunteers were investigated 3 times with TPS at a low MI (1.0) and a high frame rate (8.3 Hz). Investigations were performed by 2 sonographers in a cross-over design: 1.) twofold measurements each… CONTINUE READING