Medizinische Universität Graz - Research portal
Selected Publication:
Litscher, G; Schikora, D.
Cerebral vascular effects of non-invasive laserneedles measured by transorbital and transtemporal Doppler sonography.
Lasers Med Sci. 2002; 17(4):289-295
Doi: 10.1007/s101030200042
Web of Science
PubMed
FullText
FullText_MUG
Google Scholar
- Leading authors Med Uni Graz
- Litscher Gerhard
- Altmetrics:
- Dimensions Citations:
- Plum Analytics:
- Scite (citation analytics):
- Abstract:
- Laserneedles represent a new non-invasive optical stimulation method which is described for the first time in this paper. We investigated 27 healthy volunteers (mean age+/-SD: 25.15+/-4.12 years; range: 21-38 years; 14 female, 13 male) in a randomised cross-over trial to study differences between laserneedle acupuncture and manual needle acupuncture in specific cerebral parameters. Mean blood flow velocity ( v(m)) showed specific and significant increases in the ophthalmic artery during laserneedle stimulation ( p=0.01) and during manual needle stimulation ( p<0.001) at vision-related acupoints. At the same time insignificant alterations in v(m) were found in the middle cerebral artery for both acupuncture methods. The eight laserneedles used in this study were arranged at the end of the optical fibres. Each fibre was connected to a semiconductor laser diode emitting at 685 nm with a primary output power of about 55 mW. Optical stimulation using properly adjusted laserneedles has the advantage that the stimulation can hardly be felt by the patient and the operator may also be unaware of whether the laserneedle system is active, and therefore true double blind studies in acupuncture research can be performed.
- Find related publications in this database (using NLM MeSH Indexing)
- Acupuncture Points -
- Adult -
- Blood Flow Velocity -
- Cerebrovascular Circulation -
- Cross-Over Studies -
- Female -
- Humans -
- Lasers -
- Male -
- Needles -
- Ultrasonography, Doppler, Transcranial -
- Find related publications in this database (Keywords)
- acupuncture
- blood flow velocity
- computer-controlled laserpuncture (CCL)
- laser
- laserneedle
- middle cerebral artery
- ophthalmic artery
- transcranial Doppler sonography (TCD)
- 685 nm