Temporal analysis of regional synthetic M-mode to identify abnormal stress echocardiographic studies

Author

Lee, SH ; Saltzberg, MT ; Soble, JS ; Neumann, A. ; Robergé, J.

Author_Institution

Illinois Inst. of Technol., Chicago, IL, USA

fYear

1998

fDate

13-16 Sep 1998

Firstpage

241

Lastpage

244

Abstract

The authors investigated a method to identify regional myocardial abnormalities based on the temporal pattern of LV contraction. Nineteen stress echo studies were either normal (NML=9) or abnormal (ABN=10) by standard rest and stress images. Six radial, computer-generated synthetic M-modes (SMM) front a short axis cineloop were used to measure change in time to peak contraction during stress (Δt) for each segment. Mean Δt for all segments was -38±15% for NML and -22±27% for ABN studies (p<0.001). The presence of at least one segment with Δt⩾-15% had a sensitivity of 70% and specificity of 89% for detecting ABN studies. Temporal analysis of SMM is a promising technique for detecting resting or stress-induced LV regional abnormalities

Keywords

biomechanics; echocardiography; image motion analysis; medical image processing; muscle; LV contraction temporal pattern; abnormal stress echocardiographic studies; medical diagnostic imaging; regional myocardial abnormalities; regional synthetic M-mode; resting cardiac abnormalities; stress-induced LV regional abnormalities; temporal analysis; Acoustic imaging; Image analysis; Image segmentation; Ischemic pain; Myocardium; Optical imaging; Samarium; Stress; Thickness measurement; Timing;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers in Cardiology 1998

Conference_Location

Cleveland, OH

ISSN

0276-6547

Print_ISBN

0-7803-5200-9

Type

conf

DOI

10.1109/CIC.1998.731778

Filename

731778