Nonstationary temporal Wiener filtering of gated blood pool studies

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

OSTI ID:5971922

King, M A; Miller, T R; Doherty, P W; Bianco, J A

Temporal filtering of dynamic images can significantly improve the image quality of gated blood pool (GBP) studies and serves as a necessary preprocessing step in the formation of cardiac functional images based on derivatives of pixel time activity curves. Generally, either linear combination of the frames, or a simple frequency domain low pass filter have been employed. The work described in this paper introduces the Wiener temporal filter which adjusts to match the temporal characteristic of the image at each pixel. For temporal data degraded by signal-dependent Poisson noise, the frequency domain form of the filter is presented. Use of nonstationary temporal Wiener filtering was found to improve the quality of cines formed from GBP studies and yielded better separation of cardiac from non-cardiac regions in functional images the peak ejection and filling rates.

• Research Organization: Univ. of Massachusetts Medical School, Worcester, MA
• OSTI ID: 5971922
• Report Number(s): CONF-850611-; TRN: 87-039543
• Journal Information: J. Nucl. Med.; (United States), Vol. 26:5; Conference: 32. annual meeting of the Society of Nuclear Medicine, Houston, TX, USA, 2 Jun 1985
• Country of Publication: United States
• Language: English

Related Subjects

62 RADIOLOGY AND NUCLEAR MEDICINE
BIOMEDICAL RADIOGRAPHY
IMAGE PROCESSING
CARDIOGRAPHY
HEART
BLOOD FLOW
CAT SCANNING
DYNAMIC FUNCTION STUDIES
LABELLED POOL TECHNIQUES
RADIOCARDIOGRAPHY
SIGNAL-TO-NOISE RATIO
TIME DEPENDENCE
BODY
CARDIOVASCULAR SYSTEM
COMPUTERIZED TOMOGRAPHY
DIAGNOSTIC TECHNIQUES
ISOTOPE APPLICATIONS
MEDICINE
NUCLEAR MEDICINE
ORGANS
PROCESSING
RADIOLOGY
TOMOGRAPHY
TRACER TECHNIQUES
550602* - Medicine- External Radiation in Diagnostics- (1980-)