Image reconstruction from longitudinally and transversely truncated data along an arc-line trajectory

Author

Zou, Yu ; Xia, Dan ; Yu, Lifeng ; Sidky, Emil ; Pan, Xiaochuan

Author_Institution

Dept. of Radiol., Chicago Univ., Williams Bay, WI

Volume

4

fYear

2005

fDate

23-29 Oct. 2005

Firstpage

2433

Lastpage

2436

Abstract

We have developed and applied the backprojection-filtration (BPF) algorithm for exact image reconstruction within regions of interest (ROIs) from data containing both longitudinal and transverse truncations. An arc-line scanning trajectory is assumed for the data acquisition. Through the numerical simulation studies, we have shown that with a proper positioning of the patient, even if the patient sizes are larger than the FOV of the scanner, 3D images within the regions of the lung or the heart can be reconstructed exactly from data containing longitudinal and transverse truncations

Keywords

cardiology; computerised tomography; image reconstruction; lung; medical image processing; arc-line scanning trajectory; backprojection-filtration algorithm; exact image reconstruction; heart; longitudinally truncated data; lung; transversely truncated data; truncations; Band pass filters; Computed tomography; Data acquisition; Heart; Image reconstruction; Imaging phantoms; Lungs; Numerical simulation; Radiology; Thorax;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record, 2005 IEEE

Conference_Location

Fajardo

ISSN

1095-7863

Print_ISBN

0-7803-9221-3

Type

conf

DOI

10.1109/NSSMIC.2005.1596823

Filename

1596823