Journal article
A scheme for multisource interior tomography
Medical physics (Lancaster), Vol.36(8), pp.3575-3581
08/2009
DOI: 10.1118/1.3157103
PMCID: PMC2724174
PMID: 19746792
Abstract
Currently, x-ray computed tomography (CT) requires source scanning so that projections can be collected from various orientations for image reconstruction. Limited by the scanning time, the temporal resolution of CT is often inadequate when rapid dynamics is involved in an object to be reconstructed. To meet this challenge, here the authors propose a scheme of multisource interior tomography for ultrafast imaging that reconstructs a relatively small region of interest (ROI). Specifically, such a ROI is irradiated in parallel with narrow x-ray beams defined by many source-detector pairs for data acquisition. This ROI can be then reconstructed using the interior tomography approach. To demonstrate the merits of this approach, the authors report interior reconstruction from in vivo lung CT data at a much reduced radiation dose, which is roughly proportional to the ROI size. The results suggest a scheme for ultrafast tomography (such as with a limited number of sources and in a scanning mode) to shorten data acquisition time and to suppress motion blurring.
Details
- Title: Subtitle
- A scheme for multisource interior tomography
- Creators
- Ge Wang - Virginia TechHengyong Yu - Virginia TechYangbo Ye - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Medical physics (Lancaster), Vol.36(8), pp.3575-3581
- DOI
- 10.1118/1.3157103
- PMID
- 19746792
- PMCID
- PMC2724174
- ISSN
- 0094-2405
- eISSN
- 2473-4209
- Grant note
- R21 EB004287 / NIBIB NIH HHS R33 EB004287 / NIBIB NIH HHS EB004287 / NIBIB NIH HHS R01 EB002667 / NIBIB NIH HHS R03 EB007288-02 / NIBIB NIH HHS EB007288 / NIBIB NIH HHS EB002667 / NIBIB NIH HHS HL064368 / NHLBI NIH HHS R01 HL064368 / NHLBI NIH HHS R33 EB004287-05 / NIBIB NIH HHS R01 EB002667-06 / NIBIB NIH HHS R03 EB007288-01A1 / NIBIB NIH HHS R03 EB007288 / NIBIB NIH HHS
- Language
- English
- Date published
- 08/2009
- Academic Unit
- Mathematics
- Record Identifier
- 9984241040202771
Metrics
24 Record Views