Count-based left ventricular volume determination utilizing a left posterior oblique view for attenuation correction

Journal Article · Thu Mar 01 04:00:00 EST 1984 · Radiology; (United States)

DOI:https://doi.org/10.1148/radiology.150.3.6695084· OSTI ID:6850621

Rabinovitch, M A; Kalff, V; Koral, K; Chan, W; Juni, J E; Lerman, B; Lampman, R; Walton, J; Grassley, D; Vogel, R

This study aimed to determine the inherent error of the left ventricular volume measurement from the gated equilibrium blood pool scintigram utilizing the count-based technique. The study population consisted of 26 patients who had undergone biplane contrast ventriculography. The patients were imaged with a parallel-hole collimator in the left anterior oblique position showing the septum to best advantage. A reference blood sample was counted and radionuclide volumes calculated without correction for attenuation. Attenuation corrected volumes were derived with the factor 1/e/sup -/+d/, where d = distance from skin marker to center of the left ventricle in the orthogonal left posterior oblique view and ..mu.. = linear attenuation coefficient. A series of ..mu.. values from 0.08 to 0.15 cm/sup -1/ was evaluated. The tightest 95% confidence limits achieved for an end-diastolic 150-ml ventricle were +/- 44ml, and for an end-systolic 75-ml ventricle +/- 32 ml. In view of the magnitude of inherent error, the count-based volume measurement may be more suitable for group analyses and in cases in which an individual patient serves as his own control.

• Research Organization: Univ. of Michigan Medical Center, Ann Arbor
• OSTI ID: 6850621
• Journal Information: Radiology; (United States), Journal Name: Radiology; (United States) Vol. 150:3; ISSN RADLA
• Country of Publication: United States
• Language: English

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59 BASIC BIOLOGICAL SCIENCES
62 RADIOLOGY AND NUCLEAR MEDICINE
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BIOMEDICAL RADIOGRAPHY
BLOOD FLOW
BODY
CARDIOVASCULAR SYSTEM
COUNTING TECHNIQUES
DIAGNOSTIC TECHNIQUES
DYNAMIC FUNCTION STUDIES
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
VOLUME
YEARS LIVING RADIOISOTOPES