Left ventricular stroke volume determinations from radionuclide ventriculograms: the effects of photon attenuation

Journal Article · Mon Oct 01 04:00:00 EDT 1984 · Radiology; (United States)

DOI:https://doi.org/10.1148/radiology.153.1.6473788· OSTI ID:6385786

Schwaiger, M; Ratib, O; Henze, E; Grossman, R; Dracup, K; Tillisch, J H; Bae, J H; Schelbert, H R

To improve the accuracy of scintigraphic ventricular volume determination, which is limited by photon attenuation between the heart and the gamma camera, a method was developed for directly measuring the photon attenuation of radioactivity delivered as a bolus through a Swan-Ganz catheter into the right atrium. Comparison of the count rate recovered from this bolus with the total ex vivo measured activity determined by imaging an aliquot of the administered activity allowed calculation of the attenuation factor. Left ventricular stroke volumes determined scintigraphically by the count method in gated blood pool studies and then corrected with this attention factor correlated well with stroke volumes determined from thermodilution cardiac output and heart rate. The results indicate that correction for photon attenuation is needed for accurage measurement of left ventricular volumes.

• Research Organization: Univ. of California, Los Angeles
• DOE Contract Number: AC03-76SF00012
• OSTI ID: 6385786
• Journal Information: Radiology; (United States), Journal Name: Radiology; (United States) Vol. 153:1; ISSN RADLA
• Country of Publication: United States
• Language: English

Related Subjects

550601* -- Medicine-- Unsealed Radionuclides in Diagnostics
62 RADIOLOGY AND NUCLEAR MEDICINE
ATTENUATION
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BIOLOGICAL MATERIALS
BLOOD
BLOOD CELLS
BODY
BODY FLUIDS
CARDIOVASCULAR SYSTEM
COUNTING TECHNIQUES
DIAGNOSTIC TECHNIQUES
ELEMENTARY PARTICLES
ERYTHROCYTES
HEART
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
ISOMERIC NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MASSLESS PARTICLES
MATERIALS
NUCLEI
ODD-EVEN NUCLEI
ORGANS
OXYGEN COMPOUNDS
PATIENTS
PERTECHNETATES
PHOTONS
PHYSIOLOGY
RADIOISOTOPE SCANNING
RADIOISOTOPES
REFRACTORY METAL COMPOUNDS
SCINTISCANNING
TECHNETIUM 99
TECHNETIUM COMPOUNDS
TECHNETIUM ISOTOPES
TRANSITION ELEMENT COMPOUNDS
VOLUME
YEARS LIVING RADIOISOTOPES