Application of delayed lung imaging following radioaerosol inhalation. [/sup 99m/Tc tracer technique]

Journal Article · Tue Mar 01 04:00:00 EST 1977 · Radiology; (United States)

OSTI ID:7120578

Poe, N D; Cohen, M B; Yanda, R L

Lung scintigraphy following radioaerosol inhalation reveals evidence of airway disease and regions of decreased ventilation. In obstructive pulmonary diseases, aerosol deposition can be so excessive that lung parenchyma is not visualized immediately after radioaerosol administration. Most of the tracer which is deposited is cleared within hours, but the aerosol reaching the alveoli is retained with a half-life in excess of 2 weeks. If imaging is repeated 8 to 24 hours after inhalation, abnormal bronchi will usually be cleared of tracer, and regional ventilation defects can be visualized.

• Research Organization: Univ. of California, Los Angeles
• OSTI ID: 7120578
• Journal Information: Radiology; (United States), Journal Name: Radiology; (United States) Vol. 122:3; ISSN RADLA
• Country of Publication: United States
• Language: English

Related Subjects

550601* -- Medicine-- Unsealed Radionuclides in Diagnostics
62 RADIOLOGY AND NUCLEAR MEDICINE
AEROSOLS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BODY
COLLOIDS
COUNTING TECHNIQUES
DIAGNOSIS
DIAGNOSTIC TECHNIQUES
DISEASES
DISPERSIONS
HOURS LIVING RADIOISOTOPES
INHALATION
INTAKE
INTERMEDIATE MASS NUCLEI
ISOMERIC NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LUNGS
MICROSPHERES
NUCLEI
ODD-EVEN NUCLEI
ORGANS
RADIOACTIVE AEROSOLS
RADIOISOTOPE SCANNING
RADIOISOTOPES
RESPIRATORY SYSTEM
RESPIRATORY SYSTEM DISEASES
SCINTISCANNING
SOLS
TECHNETIUM 99
TECHNETIUM ISOTOPES
YEARS LIVING RADIOISOTOPES