The Detection of Blood Impurities Using Ultrasound Doppler
| Autor: | M. L. Hoover, V. L. Newhouse, S. R. Ash |
|---|---|
| Rok vydání: | 1980 |
| Předmět: |
Pathology
medicine.medical_specialty Materials science chemistry.chemical_element 01 natural sciences 030218 nuclear medicine & medical imaging Physical Phenomena 03 medical and health sciences symbols.namesake 0302 clinical medicine Renal Dialysis Impurity Speed of sound 0103 physical sciences medicine Humans Radiology Nuclear Medicine and imaging 010301 acoustics Ultrasonography Radiological and Ultrasound Technology business.industry Physics Ultrasound Doppler Effect Blood flow Models Theoretical chemistry Slurry symbols Particle business Doppler effect Carbon Blood Chemical Analysis Biomedical engineering |
| Zdroj: | Ultrasonic Imaging. 2:370-380 |
| ISSN: | 1096-0910 0161-7346 |
| DOI: | 10.1177/016173468000200406 |
| Popis: | The atraumatic detection of blood impurities such as charcoal particles has potential importance in the monitoring of extracorporeal blood flow for hemodialysis systems using carbon slurry in the dialisate and for blood detoxification using carbon columns. It is shown that existing clinical ultrasound Doppler systems can detect carbon particles whose diameter is comparable to that of an erythrocyte in concentrations as low as 1.5 times 10−6 g/ml in less than one second. It is shown that for particle detection in flow, Doppler systems are more sensitive than pulse echo systems of equivalent resolution by the ratio of the velocity of sound to that of the flow. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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