The value of multi-direction adjusting multi-planar reformation in displaying the ossicles
- VernacularTitle:多向调整多平面重组在听小骨显示中的作用评价
- Author:
Cheng LIU
;
Qinghua CHEN
;
Kai LIU
;
Ruozhen GONG
- Publication Type:Journal Article
- Keywords:
Image processing,computed-assisted;
Ossicles;
Tomography, X-ray computed
- From:
Chinese Journal of Radiology
2001;0(07):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the positions and ways of displaying the panorama of the ossicles in one plane respectively by multi-direction adjusting multi-planar reformation (MPR). Methods Fifty normal middle ears were scanned by using the HRCT isotropic parameters, and multi-direction adjusting MPR was performed to find out the basic positions, the rotating central point of reformation basic line, and the anatomic structure orientated the adjusting directions. The angles between adjusting lines and reformation baselines were measured. The axial, coronal, sagittal and multi-adjusting MPR images were graded according to the display of the ossicles. Then Ridit analyses and X2 test were performed. Results The demonstrating ratios of the panoramas of the malleus, incus, and stapes in one plane in multi-adjusting MPR images were 100% (50 middle ear) . The ratios were higher than those of axial (6 stapes, 0 malleus, 0 incus) , coronal (3 malleus, 0 incus, 0 stapes) , and sagittal images (0 malleus, 0 incus, 0 stapes) (Ridit analysis, P
