【Abstract】 Objective To reflect the morphological characteristics of SPV and its adjacent bone structures objectively, contrast enhanced magnetic resonance angiography (CEMRA) and computer tomography (CT) were used by combining with multi-modal fusion technology to reconstruct the normal anatomical structure of the superior petrosal vein complex and its surrounding skull, which providing reference for anatomical research and clinical surgery. Methods By adjusting the concentration of the contrast agent, the injection speed of the contrast agent, the start time of scanning, the scanned 3D CEMRA was judged to be developed successfully by the MIP post-processing of image processing workstation. The original data of 3D CEMRA and 3D-CT were imported into 3Dslicer software together. After image registration, threshold segmentation, structure pruning and data package storage, the packaged data of these two modalities were imported together and 3D fusion was performed at the same time. The related anatomical parameters were measured by using the module of 3Dslicer software. Results ①The relevant angiographic parameters of the sigmoid sinus, superior petrosal sinus (SPS), SPV, and SPV tributary was obtained, but the success rate was not stable; ②Through the three-dimensional reconstruction of the DICOM data from the head CEMRA and cranial CT, SPV and its branch, SPS, sigmoid sinus, transverse sinus and cavernous sinus, bone anatomical landmarks of skull base such as internal auditory canal, petrosal sinus groove and transverse sinus groove near the petrosal area were obtained; ③ Three-dimensional fusion map of venous structure and osseous structure after multi-modal fusion was obtained; ④The measurement diagram was obtained by using the measurement module in the 3Dslicer software. Conclusions The combination of imaging and 3Dslicer software can realistically display the anatomical structure of multi-modal fusion, providing a new possibility for the study of anatomical morphology, and also providing personalized reference for clinical surgery.
Key words
Superior petrosal vein; /
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Anatomy; /
Neurosurgery; /
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Imaging; /
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CEMRA; /
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3Dslicer /
Three-dimensional reconstruction; /
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Multimodal fusion
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