| GAO Zhen-long,WANG Qiang,LIU Cai-xia.The effects of slice thickness and reconstructive parameters on VR image quality in multi-slice CT[J].Chinese Journal of Radiological Medicine and Protection,2005,25(6):572-574 |
| The effects of slice thickness and reconstructive parameters on VR image quality in multi-slice CT |
| Received:July 07, 2005 |
| DOI： |
| KeyWords:Scan slice thickness Reconstructive thickness Reconstructive interval |
| FundProject: |
|
| Hits: 3051 |
| Download times: 2633 |
| Abstract:: |
| Objective To explore the effects of slice thickness, reconstructive thickness and reconstructive interval on VR image quality in multi-slice CT,in order to select the best slice thickness and reconstructive parameters for the imaging. Methods Multi-slice CT scan was applied on a rubber dinosaur model with different slice thickness. VR images were reconstructed with different reconstructive thickness and reconstructive interval. Five radiologists were invited to evaluate the quality of the images without knowing anything about the parameters. Results The slice thickness, reconstructive thickness and reconstructive interval did have effects on VR image quality and the effective degree was different. The effective coefficients were V1=1413.033, V2=563.733, V3=390.533, respectively. The parameters interacted with the others （P<0.05）. The smaller of those parameters, the better of the image quality. With a small slice thickness and a reconstructive slice equal to slice thickness, the image quality had no obvious difference when the reconstructive interval was 1/2, 1/3, 1/4 of the slice thickness. Conclusion A relative small scan slice thickness, a reconstructive slice equal to slice thickness and a reconstructive interval 1/2 of the slice thickness should be sclected for the best VR image quality. The image quality depends mostly on the slice thickness. |
| HTML View Full Text View/Add Comment Download reader |
| Close |
|
|
|
