[Evaluation of in vitro human blood transparentized using near-infrared light].
We developed a new technique for the in vitro imaging of transparent human blood and examined the resolution of a test chart in transparent blood. We utilized mainly three devices: a laser diode (wavelength 833 nm) that served as the light source, a near-infrared camera, and a fiberscope adapted for the camera. Blood was collected from a human femoral artery. We observed the images of transparent blood and the fiberscope image of a target in the blood using the light. These results indicate that further improvements in this system can be expected and real-time viewing by angioscope may be realized in vivo.
Takagi
S
S
Second Department of Internal Medicine, Nippon Medical School.
Katayama
Y
Y
D001769:Blood; D005336:Fiber Optic Technology; D006801:Humans; D066298:In Vitro Techniques; D007259:Infrared Rays; D014743:Videotape Recording