Blood pool tomography: Evaluation of left ventricular volumes and regional wall motion

Conference · Wed May 01 04:00:00 EDT 1985 · J. Nucl. Med.; (United States)

OSTI ID:5971445

Gill, J B; Moore, R H; Miller, D D; Yasuda, T; Boucher, C A; Strauss, H W

A combined count and geometric-based method for the calculation of left ventricular (LV) volumes was tested using fluid filled balloons (representing the left and right ventricles (RV) separated by 1 cm of foam) and positioned in a water filled chest phantom. Volume measurements wre made over a range of 20 to 250cc. Separate series were acquired for the LV and the LV plus RV with background activity added to create a 3:1 target to background ratio. A set of 60 images was acquired over 360 degrees at a radius of 32 cm for each volume using a rotating gamma camera. Each set was reconstructed by filtered back projection and short axis oblique slices 3 pixels thick were reconstructed from transverse slices. Gated blood pool tomography (GBPT) was performed in three patients with myocardial infarction. Long and short axis reconstructions demonstrated zones of akinesis and aneursym in a more discrete fashion than planar data. In one patient who had angiography, end-diastolic volume measured by GBPT was 157cc vs 150cc by angiography. These data suggest that GBPT is useful for evaluation of LV volumes and regional wall motion.

• Research Organization: Massachusetts General Hospital, Boston, MA
• OSTI ID: 5971445
• Report Number(s): CONF-850611-
• Conference Information: Journal Name: J. Nucl. Med.; (United States) Journal Volume: 26:5
• Country of Publication: United States
• Language: English

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BIOMEDICAL RADIOGRAPHY
BLOOD FLOW
BLOOD VESSELS
BODY
CARDIOGRAPHY
CARDIOVASCULAR SYSTEM
DIAGNOSTIC TECHNIQUES
DYNAMIC FUNCTION STUDIES
HEART
IMAGE PROCESSING
ISOTOPE APPLICATIONS
LABELLED POOL TECHNIQUES
MEDICINE
MOCKUP
NUCLEAR MEDICINE
ORGANS
PHANTOMS
PROCESSING
RADIOCARDIOGRAPHY
RADIOLOGY
STRUCTURAL MODELS
TRACER TECHNIQUES