The feasibility study of US-MRI virtual navigation in the shoulder

摘要

Purpose: The aim of this study was to evaluate the feasibility of ultrasound sonography (US)-magnetic resonance imaging (MRI) virtual navigation in the shoulder. Methods: We selected 10 healthy volunteers and 10 patients with supraspinatus tendinitis to fuse in the shoulder with a Virtual Navigator System. We selected five internal marks as follows: (1) circled digit one acromion, circled digit two the point of junction between the supraspinatus muscle and the tendon,{circled digit three} the point of the middle in the surface of the head of humerus in the plane of {circled digit two}, [U+2463] the point of attachment of the supraspinatus tendon in the great tuberosity of humerus, and {circled digit five} the point of the middle in the surface of the head of humerus in the plane of [U+2463]. To make three, four, and five marks in different combinations in the process of image fusion successively, it should be based on these points. The observed targets included coincidence, stability, and accuracy in the sonography and magnetic resonance images by two radiologists. Results: The supraspinatus tendon of the 10 volunteers and the lesions of 10 patients with supraspinatus tendinitis could be fused between the sonography image and the magnetic resonance image. The effect of the combination of {circled digit two}+{circled digit three}+[U+2463]+{circled digit five} in the group with four-point internal marks was most satisfactory (P<.05). Conclusion: The process of the combination of {circled digit two}+{circled digit three}+[U+2463]+{circled digit five} in the group with four-point internal marks is considered the best method, and the application of US-MRI virtual navigation is regarded feasible in the shoulder.