Estimation of absolute left ventricular volume from gated radionuclide ventriculograms. A method using phase image assisted automated edge detection and two-dimensional echocardiography

Journal Article · Fri Jul 01 04:00:00 EDT 1983 · Chest; (United States)

OSTI ID:5024215

Thomsen, J H; Patel, A K; Rowe, B R; Hellman, R S; Kosolcharoen, P; Feiring, A J; Filipek, T; Halama, J R; Polcyn, R E

Twenty-four patients underwent gated cardiac blood pool (GBP) imaging, two-dimensional echocardiography (2-D echo), and single-plane contrast ventriculography (within 24 hours). Variable left ventricular (LV) regions of interest on GBP images were identified by an automated threshold radial search. To avoid excluding LV counts we indexed the search threshold to the threshold identified by a phase image generated by Fourier analysis. LV depth calculated by 2-D echo was used for attenuation correction of LV counts. LV end-diastolic volume (EDV) and end-systolic volume (ESV) were calculated by dividing attenuation, background and deadtime corrected LV count rates by the background corrected count rate/ml of venous blood drawn during the study. Correlations between radionuclide and contrast volumes were good (EDV + ESV r . 0.97, EDV r . 0.94, ESV r . 0.95). Regression lines were close to the lines of identity. This method, in which GBP imaging and automated LV edge finding are complemented by 2-D echo for count attenuation correction, demonstrated reliable and reproducible noninvasive estimates of absolute LV volume.

• Research Organization: William S. Middleton Memorial Veterans Hospital, Madison, WI
• OSTI ID: 5024215
• Journal Information: Chest; (United States), Journal Name: Chest; (United States) Vol. 84:1; ISSN CHETB
• Country of Publication: United States
• Language: English

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62 RADIOLOGY AND NUCLEAR MEDICINE
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BIOMEDICAL RADIOGRAPHY
BLOOD PRESSURE
BODY
CARDIOVASCULAR SYSTEM
COUNTING TECHNIQUES
DIAGNOSTIC TECHNIQUES
DYNAMIC FUNCTION STUDIES
FOURIER ANALYSIS
HEART
HOURS LIVING RADIOISOTOPES
INTERMEDIATE MASS NUCLEI
ISOMERIC NUCLEI
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MEDICINE
NUCLEAR MEDICINE
NUCLEI
ODD-EVEN NUCLEI
ORGANS
PATIENTS
RADIOISOTOPE SCANNING
RADIOISOTOPES
RADIOLOGY
SCINTISCANNING
TECHNETIUM 99
TECHNETIUM ISOTOPES
ULTRASONOGRAPHY
VOLUME
YEARS LIVING RADIOISOTOPES