[Diagnosis of skull base dieases using three dimensional computed tomography]

Area of Science:

• Radiology and Imaging
• Neurosurgery
• Skull Base Surgery

Background:

• Skull base diseases present complex diagnostic challenges due to intricate anatomy.
• Conventional imaging modalities may have limitations in fully characterizing skull base pathologies.

Purpose of the Study:

• To evaluate the diagnostic and clinical utility of three-dimensional computed tomography (3D CT) for skull base diseases.
• To assess the effectiveness of 3D CT in visualizing bony changes and guiding treatment strategies.

Main Methods:

• Twenty-five patients with diverse skull base conditions underwent 3D CT imaging.
• Surface shaded display (SSD) was employed for 3D reconstruction and analysis of skull base bone alterations.

Main Results:

• 3D CT accurately identified subtle skull base fractures missed by plain films and provided superior detail to axial scans.
• In 15 cases of skull base disease and 6 cases of trigeminal neuralgia, 3D CT significantly aided in preoperative planning and postoperative evaluation.

Conclusions:

• Three-dimensional computed tomography (3D CT), built upon 2D CT scans, is an exceptionally useful tool for skull base imaging.
• The enhanced visualization provided by 3D CT improves the understanding and management of complex skull base pathologies.