Pulmonary perfusion ''without ventilation''
Journal Article
·
· J. Nucl. Med.; (United States)
OSTI ID:5442435
An 88-yr-old man, with prior left upper lobectomy and phrenic nerve injury, had a ventilation/perfusion lung image. Both wash-in and equilibrium ventilation images showed no radioactive gas in the left lung. Nevertheless, the left lung was perfused. A similar result was obtained on a repeat study 8 days later. Delayed images, during washout, showed some radioactive gas in the left lung. Nearly absent ventilation (but continued perfusion) of that lung might have been related to altered gas dynamics brought about by the prior lobectomy, a submucosal bronchial lesion, phrenic nerve damage, and limited motion of the left part of the diaphragm. This case raises the issue of the degree of ventilation (and the phase relationship between the lungs) required for the entry of radioactive gas into a diseased lung, and the production of a ''reversed ventilation/perfusion mismatch.''
- Research Organization:
- Univ. of Connecticut Health Center, Farmington
- OSTI ID:
- 5442435
- Journal Information:
- J. Nucl. Med.; (United States), Journal Name: J. Nucl. Med.; (United States) Vol. 24:12; ISSN JNMEA
- Country of Publication:
- United States
- Language:
- English
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OSTI ID:6471454
Related Subjects
550601* -- Medicine-- Unsealed Radionuclides in Diagnostics
550900 -- Pathology
59 BASIC BIOLOGICAL SCIENCES
62 RADIOLOGY AND NUCLEAR MEDICINE
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BODY
COUNTING TECHNIQUES
DAYS LIVING RADIOISOTOPES
DIAGNOSIS
DIAGNOSTIC TECHNIQUES
DISEASES
EVEN-ODD NUCLEI
HOURS LIVING RADIOISOTOPES
INHALATION
INTAKE
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOMERIC NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LUNGS
NUCLEI
ODD-EVEN NUCLEI
ORGANS
PERFUSED ORGANS
RADIOISOTOPE SCANNING
RADIOISOTOPES
RESPIRATORY SYSTEM
RESPIRATORY SYSTEM DISEASES
SCINTISCANNING
TECHNETIUM 99
TECHNETIUM ISOTOPES
VENTILATION
XENON 133
XENON ISOTOPES
YEARS LIVING RADIOISOTOPES
550900 -- Pathology
59 BASIC BIOLOGICAL SCIENCES
62 RADIOLOGY AND NUCLEAR MEDICINE
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BODY
COUNTING TECHNIQUES
DAYS LIVING RADIOISOTOPES
DIAGNOSIS
DIAGNOSTIC TECHNIQUES
DISEASES
EVEN-ODD NUCLEI
HOURS LIVING RADIOISOTOPES
INHALATION
INTAKE
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOMERIC NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LUNGS
NUCLEI
ODD-EVEN NUCLEI
ORGANS
PERFUSED ORGANS
RADIOISOTOPE SCANNING
RADIOISOTOPES
RESPIRATORY SYSTEM
RESPIRATORY SYSTEM DISEASES
SCINTISCANNING
TECHNETIUM 99
TECHNETIUM ISOTOPES
VENTILATION
XENON 133
XENON ISOTOPES
YEARS LIVING RADIOISOTOPES