Application of Manual Stitching Technique for Digital Radiography in Total Knee Arthroplasty
10.3870/j.issn.1672-0741.2014.04.021
- VernacularTitle:DR图像手动拼接技术在全膝关节置换术中的应用
- Author:
Liang XU
;
Tao QIN
- Publication Type:Journal Article
- Keywords:
total knee arthroplasty(TKA);
DR image mosaicing technique;
image registration;
image fusion
- From:
Acta Medicinae Universitatis Scientiae et Technologiae Huazhong
2014;(4):456-458,459
- CountryChina
- Language:Chinese
-
Abstract:
Objective To obtain panorama X-ray images of the lower extremity with a simple method,eliminate the mosai-cing error,and apply this manual stitching technique for digital radiography to the measurement of the force line in total knee arthroplasty.Methods The track of X-ray tube was preset,and Dicom format data were collected by using digital X-ray ima-ging.Then,the data were imported to photoshop CS4 for manual image registration and image fusion.The reliability of the film was tested by comparing the vertical length of the body symbols proj ection in the coronal plane with that on the panorama X-ray (AutoCAD 2010)images.Moreover,the hip-knee-ankle angle was compared before and after operation.Results The matching sample t-test showed there were no significant differences in the length(4 groups of data)between the greater trochanter femur and the fibular head,and between the fibular head and the lateral malleolus between before and after operation(P>0.05 for all) .The hip-knee-ankles angle was much greater after operation than that before operation.Conclusion This manual stitching technique for digital radiography can produce seamless and precise panorama X-ray images,which can be used to reflect the length and angle of the lower extremity before and after operation.
