Prediction of Sphenoid Septation in MRI Compared With CT and Intraoperative Findings During Endoscopic Pituitary Adenoma Surgery

Study Overview
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Brief Summary
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To investigate whether MRI is able to predict the exact anatomy and topography of the sphenoid sinus and its relationship to the sellar, parasellar und paraclinoid region and where CT yields more detailed information for the surgeon before trans-sphenoidal pituitary adenoma surgery.

Detailed Description
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The current research project addresses the question whether MRI alone is sufficient for preoperative planning and computer-assisted surgery (CAS) during standard trans-sphenoidal pituitary surgery and if situations can be identified, where additional CT yields more information for the surgeon. A comparison of MRI with CT of the skull base or paranasal sinuses and intraoperative Video documentation of the anatomical site will be used. 50 patients operated the University hospital of Basel [USB] (Centre A) are consecutively included into the prospective part of the study. MRI is used to assess the standardized variables, confirmed by CT. Additionally, for the 50 prospectively collected patients, neuroimaging results are correlated with intraoperative evaluation during endoscopic trans-sphenoidal surgery or post-hoc with video analysis of the performed surgery. Between 20-50 patients operated at the University of Malaya Medical Centre [UMMC] and Specialist Centre [UMSC] (Centre B)will be included retro- and prospectively . MRI is used to assess the standardized variables and the results are correlated with intraoperative evaluation during endoscopic trans-sphenoidal surgery or post-hoc with video analysis of the performed surgery.

Official Title
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Prediction of Sphenoid Septation in Magnetic Resonance Imaging Compared With Computed Tomography and Intraoperative Findings During Endoscopic Pituitary Adenoma Surgery - a Prospective Observational Study

Conditions
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Pituitary Adenoma

Intervention / Treatment
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* Procedure: comparison of data from MRI with data from CT compared with intraoperative data from endoscopic pituitary adenoma surgery


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: lndicated trans-nasal trans-sphenoidal surgery for an anterior skull base tumour with preoperative baseline MRI (Centre A and B) and baseline CT (Centre A). Exclusion Criteria: Previous trans-sphenoidal surgery Patients without CT, MRI or intraoperative endoscopic video
Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Intervention/Treatment |
| --- |
|Procedure: comparison of data from MRI with data from CT compared with intraoperative data from endoscopic pituitary adenoma surgery|A comparison of MRI with CT of the skull base or paranasal sinuses and intraoperative Video documentation of the anatomical site will be used.|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Posterior Insertion Site of the sphenoid septum at Cavernous Carotid and/or Optico-Carotid-Recess | To compare the relative performance of the MRI and the CT scan regarding posterior insertion site of the sphenoid septum at cavernous carotid and/or optico-carotid-recess. Neuroimaging results are correlated with intraoperative evaluation during endoscopic transsphenoidal surgery. | duration of endoscopic transsphenoidal surgery | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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pituitary adenoma surgery, endoscopic transsphenoidal surgery, sphenoid septation