Name
Abstract | ||
|---|---|---|
Exposure to medical radiation is an important healthcare concern. In this paper we present a variational formulation for image reconstruction from low-dose transmission X-ray CT as well as its application to real clinical data. Our projection domain reconstruction method is based on high-order total variation penalties. We apply the method to clinical neck data obtained from a current 64-channel MDCT helical scanner, where small features and large dynamic range variation are pervasive. The ability to generate high-quality images even at 75% dose reduction is demonstrated. In particular, our approach exhibits image SNR comparable to full-dose filtered backprojection images while avoiding the obvious stair case and blockiness artifacts typically encountered in such methods. |
Year | DOI | Venue |
|---|---|---|
2010 | 10.1109/ISBI.2010.5490057 | ISBI |
Keywords | Field | DocType |
neck,cone-beam spiral,high-order total variation penalty,computerised tomography,low dose image,64-channel mdct helical scanner,filtered backprojection image,large dynamic range variation,variational approach,image snr,full-dose filtered backprojection images,mdct,high-quality image,high-order total variation penalties,real clinical data,blockiness artifacts,image reconstruction,stair case artifacts,low dose imaging,low-dose transmission x-ray ct,iterative reconstruction technique,clinical helical,projection domain reconstruction method,clinical neck data,medical image processing,total variation,noise,iterative methods,computed tomography,biomedical imaging,image restoration,tv,iterative reconstruction,dynamic range | Iterative reconstruction,Computer vision,Image generation,Pattern recognition,Iterative method,Medical imaging,Computer science,Computed tomography,Artificial intelligence,Scanner,Image restoration,Large dynamic range | Conference |
ISSN | ISBN | Citations |
1945-7928 E-ISBN : 978-1-4244-4126-6 | 978-1-4244-4126-6 | 0 |
PageRank | References | Authors |
0.34 | 3 | 5 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Synho Do | 1 | 94 | 12.86 |
| W. Clem Karl | 2 | 2 | 1.74 |
| Mannudeep Kalra | 3 | 144 | 14.28 |
| Thomas J. Brady | 4 | 3 | 2.44 |
| Homer Pien | 5 | 113 | 10.40 |