Abstract
Rationale and Objectives.: As a preliminary study for application of phase-contrast X-ray imaging to medicine, we measured the X-ray refractive index of human blood and its influence on image contrast. Methods.: Using an X-ray interferometer, the X-ray phase shifts caused by human blood and its ingredients were measured from the interval of interference fringes. Results.: The X-ray phase shift caused by blood was 3% larger than that caused by serum. Conclusion.: The large phase shift caused by blood is due to red blood cells, which contain hemoglobin molecules with iron atoms. It is possible that blood produces a structure in a phase-contrast X-ray image.
| Original language | English |
|---|---|
| Pages (from-to) | 883-887 |
| Number of pages | 5 |
| Journal | Academic Radiology |
| Volume | 2 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - 1995 Oct |
Keywords
- blood
- interferometer
- phase contrast
- refractive index
- X-rays
