Faculty

Ian T. Mark, M.D., MSM

Clinical Studies

Beta Trace Protein venous blood levels in CSF-venous fistula (CVF) Rochester, MN
The purpose of this study is to compare Beta Trace Protein venous blood levels in those with and without CSF-venous fistula (CVF), and to create a proof of concept that Beta Trace Protein is a feasible blood test for patients with CVF.
Evaluation of Intraoperative Contrast Enhanced Ultrasound for the Identification of Pituitary Adenoma in Cushing’s Disease compared to other pituitary tumors. Rochester, MN
The purpose of this study is to combine recent advances in ultrasound imaging, specifically an endonasal transducer array and contrast enhanced ultrasound, to offer an intraoperative image-guided solution for lesion-specific surgical resection to impact clinical outcome.
Spine MRI For The Evaluation Of Spontaneous Intracranial Hypotension (SIH) Rochester, MN
The purpose of this study is to determine if the exact site of the spinal CSF leak can be detected by high resolution spine MRI. To determine if secondary markers of spinal CSF leaks can be detected.

Non-invasive Intracranial Pressure Monitor For Spontaneous Intracranial Rochester, MN
The purpose of this study is to detect the intracranial pressure using non-invasive measurement in normal controls. Detect the intracranial pressure using non-invasive measurement in patients with SIH. Compare the intracranial pressure between patients with SIH compared to normal controls.