A novel three-dimensional MRI-CT image fusion technique for precise preoperative evaluation and treatment of capitellar osteochondritis dissecans

Kohyama, Sho; Nishiura, Yasumasa; Hara, Yuki; Ogawa, Tomoya; Ikumi, Akira; Okano, Eriko; Totoki, Yasukazu; Yamazaki, Masashi

doi:10.1007/s00330-020-07680-1

Cited by 6 publications

(6 citation statements)

References 20 publications

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“…OCD lesion evaluation using MCFIs is a minimally invasive technique that enables prediction of lesion severity with high accuracy [ 28 ]. In developing this technique, we intended to maximize the advantages and compensate for the shortcomings of MRI and CT.…”

Section: Discussionmentioning

confidence: 99%

“…A 3-Tesla imager (MAGNETOM© Verio, Siemens, Munich, Germany) was used for MRI. We followed the procedures we published in a previous article on imaging sequence and settings, position of patients, and application of axial traction (7 kg) [ 28 ]. Axial traction widens the joint space and helps better visualize an outline of the articular cartilage of the humeral capitellum [ 28 , 30 ] ( Figure 1 ).…”

Section: Methodsmentioning

confidence: 99%

“…This function enables two separate 3D models to be superimposed using an arbitrary number of corresponding points. In our procedure, we registered four corresponding points that are easy to recognize and belong to different planes, as reported in a previous study [ 28 ] ( Figure 4 a). Second, we used a function called global registration to fine-tune the position of the superimposed 3D models ( Figure 4 b).…”

Section: Methodsmentioning

confidence: 99%

“…To address this difficulty, we developed and recently reported a method to create 3D MRI-CT fusion images (MCFIs) of the OCD lesions [ 28 ]. This computer-aided technique combines the advantages of CT and MRI and provides a minimally invasive, accurate preoperative evaluation of OCD lesions.…”

Section: Introductionmentioning

confidence: 99%

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Preoperative Evaluation and Surgical Simulation for Osteochondritis Dissecans of the Elbow Using Three-Dimensional MRI-CT Image Fusion Images

et al. 2021

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We used our novel three-dimensional magnetic resonance imaging-computed tomography fusion images (3D MRI-CT fusion images; MCFIs) for detailed preoperative lesion evaluation and surgical simulation in osteochondritis dissecans (OCD) of the elbow. Herein, we introduce our procedure and report the findings of the assessment of its utility. We enrolled 16 men (mean age: 14.0 years) and performed preoperative MRI using 7 kg axial traction with a 3-Tesla imager and CT. Three-dimensional-MRI models of the humerus and articular cartilage and a 3D-CT model of the humerus were constructed. We created MCFIs using both models. We validated the findings obtained from the MCFIs and intraoperative findings using the following items: articular cartilage fissures and defects, articular surface deformities, vertical and horizontal lesion diameters, the International Cartilage Repair Society (ICRS) classification, and surgical procedures. The MCFIs accurately reproduced the lesions and correctly matched the ICRS classification in 93.5% of cases. Surgery was performed as simulated in all cases. Preoperatively measured lesion diameters exhibited no significant differences compared to the intraoperative measurements. MCFIs were useful in the evaluation of OCD lesions and detailed preoperative surgical simulation through accurate reproduction of 3D structural details of the lesions.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Preoperative Evaluation and Surgical Simulation for Osteochondritis Dissecans of the Elbow Using Three-Dimensional MRI-CT Image Fusion Images

et al. 2021

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“…Magnetic resonance imaging (MRI) and computed tomography (CT) fusion images are used for intraoperative navigation, as either modality alone provides inadequate clinical information. Together, they are complementary, and their data can be easily and accurately integrated with the navigation system software ( 23 , 24 ). The aim of this study was to investigate how to precisely expose the intrameatal portion of VSs without damaging the labyrinth.…”

Section: Introductionmentioning

confidence: 99%

How to Precisely Open the Internal Auditory Canal for Resection of Vestibular Schwannoma via the Retrosigmoid Approach

Jia

Xu²,

Wang³

et al. 2022

Front. Surg.

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ObjectiveThe aim of this study was to investigate how to precisely expose the intrameatal portion of vestibular schwannomas (VSs) without damaging the labyrinth.MethodsThis was a retrospective study of patients who had undergone retrosigmoid resection of a VS in our institution from April 2018 to December 2021. The patients were divided into microsurgery (MS) and navigation endoscopic-assisted (combined surgery, CS) groups and the effects of image guidance and endoscopy evaluated. The tumors in the CS group were then divided into medial and lateral types by fusion imaging and the differences between the two types analyzed.ResultsData of 84 patients were analyzed. Residual tumor was detected by postoperative MRI at the fundus of the internal auditory canal in 5 of the 31 patients in the MS group and 1 of the 53 in the CS group. The labyrinth was damaged in four patients in the MS group but was not damaged in any of the CS group patients. The CS group included 29 lateral type and 24 medial type schwannomas. Endoscopic-assisted resection of residual tumor in the IAC was performed significantly more often on medial than on lateral tumors.ConclusionNavigation and endoscopy are useful in assisting the exposure of the intrameatal portion of VSs. Preoperative MRI/CT fusion imaging is helpful in preoperative evaluation and surgical planning in patients undergoing VS surgery. Tumors of the medial type require endoscopic assistance for resection.

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FusionJISI: A fusion algorithm based on infrared and visible images with joint involvement of source image

Dong

Wang

Zhao

2023

Infrared Physics & Technology

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A novel three-dimensional MRI-CT image fusion technique for precise preoperative evaluation and treatment of capitellar osteochondritis dissecans

Cited by 6 publications

References 20 publications

Preoperative Evaluation and Surgical Simulation for Osteochondritis Dissecans of the Elbow Using Three-Dimensional MRI-CT Image Fusion Images

Preoperative Evaluation and Surgical Simulation for Osteochondritis Dissecans of the Elbow Using Three-Dimensional MRI-CT Image Fusion Images

How to Precisely Open the Internal Auditory Canal for Resection of Vestibular Schwannoma via the Retrosigmoid Approach

FusionJISI: A fusion algorithm based on infrared and visible images with joint involvement of source image

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