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Interpretation of indeterminate lung scintigrams. [/sup 99m/Tc, /sup 133/Xe]

Journal Article · · Radiology; (United States)
OSTI ID:5883411
 [1]; ; ; ; ;
  1. Washington Univ., St. Louis, MO
+ Show Author Affiliations
Lung scintigrams and pulmonary angiograms of 111 patients with suspected pulmonary embolism who had matching perfusion defects and radiographic abnormalities (infiltrate, atelectasis, or effusion) were reviewed. In 14 patients perfusion defects were substantially smaller than the corresponding radiographic opacity; only 1 (7%) had pulmonary embolism. In 77 the opacities and perfusion defects were of similar size; the abnormality was due to embolism in 20 (26%). In 18 patients perfusion defects were substantially larger than the radiographic opacities and were not associated with matching ventilation abnormalities; of these, 16 (89%) had pulmonary embolism. Evaluation of the relative size of perfusion defects and radiographic abnormalities occurring in the same region improves the ability of lung scintigrams to predict pulmonary emboli.
OSTI ID:
5883411
Journal Information:
Radiology; (United States), Journal Name: Radiology; (United States) Vol. 133:1; ISSN RADLA
Country of Publication:
United States
Language:
English

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Related Subjects

550601* -- Medicine-- Unsealed Radionuclides in Diagnostics
62 RADIOLOGY AND NUCLEAR MEDICINE
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BIOLOGICAL LOCALIZATION
BIOMEDICAL RADIOGRAPHY
BLOOD FLOW
BODY
COMPARATIVE EVALUATIONS
COUNTING TECHNIQUES
DATA
DATA FORMS
DAYS LIVING RADIOISOTOPES
DIAGNOSIS
DIAGNOSTIC TECHNIQUES
DRUGS
EMBOLI
EVEN-ODD NUCLEI
EXPERIMENTAL DATA
HOURS LIVING RADIOISOTOPES
INFORMATION
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
ISOLATED VALUES
ISOMERIC NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LABELLED COMPOUNDS
LUNGS
MEDICINE
NUCLEAR MEDICINE
NUCLEI
NUMERICAL DATA
ODD-EVEN NUCLEI
ORGANS
RADIOACTIVE MATERIALS
RADIOISOTOPE SCANNING
RADIOISOTOPES
RADIOLOGY
RADIOPHARMACEUTICALS
RESPIRATORY SYSTEM
SCINTISCANNING
TECHNETIUM 99
TECHNETIUM ISOTOPES
XENON 133
XENON ISOTOPES
YEARS LIVING RADIOISOTOPES