Airflow patterns in a human nasal model
Nasal airflow patterns were studied by using xenon 133 gas to image the course taken by air as it flowed through a plastic model of the human nasal cavity. The model was produced from the head of a human cadaver, and was anatomically correct. A needle catheter was used to infuse the radioactive xenon into a continuous flow of room air maintained through the model by a variable vacuum source connected to the nasopharynx. The radioactive gas was infused at one of five release sites in the nostril, and the distribution of the radioactivity was imaged in the sagittal plane with a scintillation camera. The data were organized to show the activity in six contiguous regions of the midnose. For each catheter, release site activity patterns were determined for three flow rates. The results of this experiment showed that both catheter position and flow rate had significant and reproducible effects on the distribution of radioactivity within the model.
- Research Organization:
- State Univ. of New York-Health Science Center, Syracuse
- OSTI ID:
- 6644866
- Journal Information:
- Arch. Otolaryngol. Head Neck Surg.; (United States), Vol. 2
- Country of Publication:
- United States
- Language:
- English
Similar Records
Magnetic resonance imaging and computational fluid dynamics (CFD) simulations of rabbit nasal airflows for the development of hybrid CFD/PBPK models
COMPARATIVE COMPUTATIONAL MODELING OF AIRFLOWS AND VAPOR DOSIMETY IN THE RESPIRATORY TRACTS OF RAT, MONKEY, AND HUMAN
Related Subjects
NOSE
AIR FLOW
SINUSES
XENON 133
DIAGNOSTIC USES
IMAGES
MAN
PHANTOMS
TRACER TECHNIQUES
ANIMALS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BODY
BODY AREAS
DAYS LIVING RADIOISOTOPES
EVEN-ODD NUCLEI
FACE
FLUID FLOW
GAS FLOW
HEAD
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOTOPE APPLICATIONS
ISOTOPES
MAMMALS
MOCKUP
NUCLEI
PRIMATES
RADIOISOTOPES
RESPIRATORY SYSTEM
STRUCTURAL MODELS
USES
VERTEBRATES
XENON ISOTOPES
550601* - Medicine- Unsealed Radionuclides in Diagnostics