The Study of MSCT Volume Reconstruction in the Ear Lesions
- VernacularTitle:多排螺旋CT容积重建技术在耳部疾病中的应用价值
- Author:
Zuohua TANG
;
Wen QIAN
;
Jichang SONG
;
Mingshun ZOU
;
Kangrong ZHOU
- Publication Type:Journal Article
- Keywords:
ear;
structure;
reconstruction;
tomography ,X-ray computed
- From:
Journal of Practical Radiology
2000;0(02):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the value of volume reconstruction ( VR ) in showing the ear lesions and to compare with otherpost-processed methods.Methods 15 patients with hearing loss underwent MSCT ultra-high resolution scan with collimation 0.5 mm,pitch 0.5~0.875 and increment 0.1mm.An additional enhanced CT was performed in 10 of 15 cases. The various reconstructions including VR , MPR, SSD, VE, Ray Sum and MIP/MinIP were performed for the comparison of their ability in showing the ear lesions and the invasion of the auditory ossicals and the inner ear of the adjacent tumors. Results VR was the most optimal way, in showing the ear lesions,successionally in descending order was VR, MPR, SSD, MIP/MinIP. Ray Sum and VE were only suitable for showing the lesions of the inner ear and auditory ossicles respectively.Conclusion The data acquired from the scan of MSCT using 0.5 mm collimation can be used in various reconstruction methods including VR, MPR, SSD and MIP/MinIP to display the lesions of the ear and the invasion of the ear fine structures from the plane and three-dimensional view. VR is the best way, which can display the relationship between tumor and facial/auditory nerve, labyrinth .
