Noncomputerized count-based technique for the determination of resting left ventricular ejection fraction

Journal Article · Sun Aug 01 04:00:00 EDT 1982 · Radiology; (United States)

DOI:https://doi.org/10.1148/radiology.144.3.6285415· OSTI ID:6943236

Gerber, K H; Slutsky, R A; Witztum, K F; Higgins, C B; Ashburn, W L

A noncomputerized, count-based technique for the determination of left ventricular ejection fraction (LVEF), which does not use geometric assumptions of left ventricular shape, was developed. The noncomputerized technique and computerized multigated ventriculography using both fixed and variable region-of-interest (ROI) methods were performed on 16 patients. The LVEFs obtained with the noncomputerized technique correlated well with both the fixed ROI computerized technique (r . .87) and the variable ROI computerized technique (r . .86). It is concluded that when a computer is not available, the noncomputerized technique is a valid alternative for the determination of LVEF in resting patients in stable sinus rhythm.

• Research Organization: Department of Radiology, University of California Medical Center, San Diego, CA
• OSTI ID: 6943236
• Journal Information: Radiology; (United States), Journal Name: Radiology; (United States) Vol. 144:3; ISSN RADLA
• Country of Publication: United States
• Language: English

Related Subjects

550601* -- Medicine-- Unsealed Radionuclides in Diagnostics
550901 -- Pathology-- Tracer Techniques
551001 -- Physiological Systems-- Tracer Techniques
59 BASIC BIOLOGICAL SCIENCES
62 RADIOLOGY AND NUCLEAR MEDICINE
BODY
CARDIOVASCULAR SYSTEM
COMPARATIVE EVALUATIONS
COMPUTER CALCULATIONS
COUNTING TECHNIQUES
DIAGNOSTIC TECHNIQUES
DYNAMIC FUNCTION STUDIES
HEART
MORPHOLOGY
ORGANS
PATHOLOGY
PATIENTS
PHYSIOLOGY
RADIOISOTOPE SCANNING
SCINTISCANNING
VOLUME