Ian T. Mark, M.D., MSM

  1. Radiologist
  1. Mark IT, Madhavan AA, Delone DR, Oien MP, Messina SA. Direct pseudomeningocele contrast injection for spinal CSF leak localization. Neuroradiol J. 2024 Dec; 37 (6):761-763 Epub 2023 Dec 26
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  2. Bathla G, Messina SA, Black DF, Benson JC, Kollasch P, Nickel MD, Soni N, Rucker BC, Mark IT, Diehn FE, Agarwal AK. Deep Learning-Based Reconstruction of 3D T1 SPACE Vessel Wall Imaging Provides Improved Image Quality with Reduced Scan Times: A Preliminary Study. AJNR Am J Neuroradiol. 2024 Nov 7; 45 (11):1655-1660 Epub 2024 Nov 07
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  3. Schroeder DG, Farnsworth PJ, Carr CM, DeLone DR, Benson JC, Carlson ML, Leng S, Mark IT, Kassmeyer BA, Lane JI. Improved visualization of cochlear implant electrodes on photon counting detector CT Clinical Neuroimaging. 2024; 1(1-2).
  4. Madhavan AA, Lutzen N, Cutsforth-Gregory JK, Schievink WI, Kodet ML, Mark IT, Morris PP, Messina SA, Wald JT, Brinjikji W. Additional Diagnostic Value of Cone Beam CT Myelography Performed After Digital Subtraction Myelography for Detecting CSF-venous Fistulas. AJNR Am J Neuroradiol. 2024 Oct 15 [Epub ahead of print]
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  5. Madhavan AA, Brinjikji W, Cutsforth-Gregory JK, Amrhein TJ, Kranz PG, Benson JC, Diehn FE, Johnson-Tesch BA, Liebo GB, Lehman VT, Mark IT, Morris PP, Oien MP, Shlapak DP, Verdoorn JT. Myelographic Techniques for the Localization of CSF-Venous Fistulas: Updates in 2024. AJNR Am J Neuroradiol. 2024 Oct 3; 45 (10):1403-1412 Epub 2024 Oct 03
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  6. Mark IT, Cutsforth-Gregory J, Luetmer P, Madhavan AA, Oien M, Farnsworth P, Bathla G, Messina S, Link M, Van Gompel J. Skull Base CSF Leaks: Potential Underlying Pathophysiology and Evaluation of Brain MR Imaging Findings Associated with Spontaneous Intracranial Hypotension. AJNR Am J Neuroradiol. 2024 Oct 3; 45 (10):1593-1596 Epub 2024 Oct 03
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  7. Bathla G, Soni N, Mark IT, Liu Y, Larson NB, Kassmeyer BA, Mohan S, Benson JC, Rathore S, Agarwal AK. Impact of SUSAN Denoising and ComBat Harmonization on Machine Learning Model Performance for Malignant Brain Neoplasms. AJNR Am J Neuroradiol. 2024 Sep 9; 45 (9):1291-1298 Epub 2024 Sept 09
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  8. Mark IT, Yu L. Photon-Counting Detector CT Iodine Maps for Pituitary Adenoma in Cushing Disease. AJR Am J Roentgenol. 2024 Sep; 223 (3):e2431418 Epub 2024 June 05
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  9. Mark IT, Brinjikji W, Cutsforth-Gregory J, Verdoorn JT, Benson JC, Madhavan AA, Meeusen JW. Beta Trace Protein as a Potential Biomarker for CSF-Venous Fistulas. AJNR Am J Neuroradiol. 2024 Aug 24 [Epub ahead of print]
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  10. Mark IT, Oien MP, Benson JC, Verdoorn JT, Johnson-Tesch B, Kim DK, Cutsforth-Gregory J, Madhavan AA. CT-Guided Epidural Contrast Injection for the Identification of Dural Defects. AJNR Am J Neuroradiol. 2024 Aug 12 [Epub ahead of print]
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  11. Benson JC, Mark IT, Madhavan AA, Johnson-Tesch B, Diehn FE, Carr CM, Kim DK, Brinjikji W, Verdoorn JT. Intracranial findings in spontaneous intracranial hypotension: Does the severity of abnormalities correspond with certainty and/or multifocality of cerebrospinal fluid leaks? Neuroradiol J. 2024 Aug; 37 (4):468-472 Epub 2024 Mar 25
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  12. Mark IT, Welker K, Erickson D, Johnson DR, Bathla G, Messina S, Farnsworth PJ, Van Gompel J. 7T MRI for Cushing Disease: A Single-Institution Experience and Literature Review. AJNR Am J Neuroradiol. 2024 Jul 8; 45 (7):971-976 Epub 2024 July 08
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  13. Brinjikji W, Madhavan A, Garza I, Whealy M, Kissoon N, Mark I, Morris PP, Verdoorn J, Benson JC, Atkinson JLD, Kobeissi H, Cutsforth-Gregory JK. Clinical and imaging outcomes of 100 patients with cerebrospinal fluid-venous fistulas treated by transvenous embolization. J Neurointerv Surg. 2024 Jun 27 Epub 2024 June 27
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  14. Mark IT, Van Gompel J, Bancos I, Nagelschneider AA, Johnson DR, Bathla G, Madhavan AA, Weber NM, Yu L. Back to the Future: Dynamic Contrast-Enhanced Photon-Counting Detector CT for the Detection of Pituitary Adenoma in Cushing Disease. AJNR Am J Neuroradiol. 2024 Jun 7; 45 (6):743-746 Epub 2024 June 07
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  15. Mark IT, Karki P, Cutsforth-Gregory J, Brinjikji W, Madhavan AA, Messina SA, Cogswell PM, Chen JJ, Ehman RL, Huston J, Murphy MC. Evaluation of MR Elastography as a Noninvasive Diagnostic Test for Spontaneous Intracranial Hypotension. AJNR Am J Neuroradiol. 2024 May 9; 45 (5):662-667 Epub 2024 May 09
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  16. Madhavan AA, Cutsforth-Gregory JK, Brinjikji W, Benson JC, Johnson-Tesch BA, Liebo GB, Mark IT, Oien MP, Shlapak DP, Yu L, Verdoorn JT. Benefits of Photon-Counting CT Myelography for Localization of Dural Tears in Spontaneous Intracranial Hypotension. AJNR Am J Neuroradiol. 2024 May 9; 45 (5):668-671 Epub 2024 May 09
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  17. Benson JC, Trejo-Lopez JA, Cormier JL, Parney IF, Mark IT, Madhavan AA, Kotsenas AL, Rydberg CH, Luetmer PH, Eckel LJ, Johnson DR. Radiology-pathology correlation: Giant tumefactive perivascular spaces. Neuroradiol J. 2024 Apr 12; 19714009241247459 [Epub ahead of print]
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  18. Soni N, Agarwal A, Ajmera P, Mehta P, Gupta V, Vibhute M, Gubbiotti M, Mark IT, Messina SA, Mohan S, Bathla G. High-Grade Astrocytoma with Piloid Features: A Dual Institutional Review of Imaging Findings of a Novel Entity. AJNR Am J Neuroradiol. 2024 Apr 8; 45 (4):468-474 Epub 2024 Apr 08
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  19. Faghani S, Moassefi M, Madhavan AA, Mark IT, Verdoorn JT, Erickson BJ, Benson JC. Identifying Patients with CSF-Venous Fistula Using Brain MRI: A Deep Learning Approach. AJNR Am J Neuroradiol. 2024 Apr 8; 45 (4):439-443 Epub 2024 Apr 08
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  20. Mark I, Madhavan A, Carr C, Cutsforth-Gregory J. Intrathecal hematoma following epidural blood patch: An alternative mechanism to intrathecal puncture. Neuroradiol J. 2024 Mar 23; 19714009241242587 [Epub ahead of print]
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  21. Huynh TJ, Parizadeh D, Ahmed AK, Gandia CT, Davison HC, Murray JV, Mark IT, Madhavan AA, Shlapak D, Rozen TD, Brinjikji W, Vibhute P, Gupta V, Brewer K, Fermo O. Lateral Decubitus Dynamic CT Myelography with Real-Time Bolus Tracking (dCTM-BT) for Evaluation of CSF-Venous Fistulas: Diagnostic Yield Stratified by Brain Imaging Findings. AJNR Am J Neuroradiol. 2023 Dec 29; 45 (1):105-112
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  22. Madhavan AA, Cutsforth-Gregory JK, Brinjikji W, Benson JC, Diehn FE, Mark IT, Verdoorn JT, Zhou Z, Yu L. Application of a Denoising High-Resolution Deep Convolutional Neural Network to Improve Conspicuity of CSF-Venous Fistulas on Photon-Counting CT Myelography. AJNR Am J Neuroradiol. 2023 Dec 29; 45 (1):96-99
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  23. Madhavan AA, Cutsforth-Gregory JK, Brinjikji W, Bathla G, Benson JC, Diehn FE, Eckel LJ, Mark IT, Morris PP, Payne MA, Verdoorn JT, Weber NM, Yu L, Baffour F, Fletcher JG, McCollough CH. Diagnostic Performance of Decubitus Photon-Counting Detector CT Myelography for the Detection of CSF-Venous Fistulas. AJNR Am J Neuroradiol. 2023 Dec 11; 44 (12):1445-1450
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  24. Mark IT, Glastonbury CM. MR Imaging Appearance of Ruptured Rathke Cleft Cyst and Associated Bone Marrow Enhancement. AJNR Am J Neuroradiol. 2023 Nov; 44 (11):1314-1317 Epub 2023 Oct 05
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  25. Benson JC, Madhavan AA, Mark IT, Cutsforth-Gregory JK, Brinjikji W, Verdoorn JT. Likelihood of Discovering a CSF Leak Based on Intracranial MRI Findings in Patients without a Spinal Longitudinal Extradural Collection: A New Probabilistic Scoring System. AJNR Am J Neuroradiol. 2023 Nov; 44 (11):1339-1344 Epub 2023 Oct 26
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  26. Shlapak DP, Mark IT, Kim DK, Benson JC, Diehn FE, Kissoon NR, Liebo GB, Madhavan AA, Morris JM, Morris PP, Oien MP, Verdoorn JT, Carr CM. Incremental diagnostic yield and clinical outcomes of lateral decubitus CT myelogram immediately following negative lateral decubitus digital subtraction myelogram. Neuroradiol J. 2023 Oct; 36 (5):593-600 Epub 2023 Apr 27
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  27. Mark IT, Black D, Benson JC, Campeau NG, Johnson DR, Messina SA, Giannini C, Parney I, Morris PP. Benign Enhancing Foramen Magnum Lesions. AJNR Am J Neuroradiol. 2023 Sep; 44 (9):999-1001 Epub 2023 Aug 03
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  28. Mark IT, Madhavan AA, Benson JC, Verdoorn JT, Yu L. Updated ultrafast dynamic computed tomography myelography technique for cerebrospinal fluid leaks. Interv Neuroradiol. 2023 Aug 22; 15910199231193463 [Epub ahead of print]
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  29. Madhavan AA, Yu L, Brinjikji W, Cutsforth-Gregory JK, Schwartz FR, Mark IT, Benson JC, Amrhein TJ. Utility of Photon-Counting Detector CT Myelography for the Detection of CSF-Venous Fistulas. AJNR Am J Neuroradiol. 2023 Jun; 44 (6):740-744 Epub 2023 May 18
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  30. Benson JC, Vaubel R, Ebne BA, Mark IT, Peris Celda M, Hook CC, Tobin WO, Giannini C. Erdheim-Chester Disease. AJNR Am J Neuroradiol. 2023 May; 44 (5):505-510 Epub 2023 Mar 30
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  31. Siminski CP, Carr CM, Kallmes DF, Oien MP, Atkinson JLD, Benson JC, Diehn FE, Kim DK, Liebo GB, Lehman VT, Madhavan AA, Mark IT, Morris PP, Shlapak DP, Verdoorn JT, Morris JM. Fluoroscopy- and CT-Guided Gold Fiducial Marker Placement for Intraoperative Localization during Spinal Surgery: Review of 179 Cases at a Single Institution-Technique and Safety Profile. AJNR Am J Neuroradiol. 2023 May; 44 (5):618-622 Epub 2023 Apr 20
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  32. Mark I, Madhavan A, Oien M, Verdoorn J, Benson JC, Cutsforth-Gregory J, Brinjikji W, Morris P. Temporal Characteristics of CSF-Venous Fistulas on Digital Subtraction Myelography. AJNR Am J Neuroradiol. 2023 Apr; 44 (4):492-495 Epub 2023 Mar 09
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  33. Madhavan AA, Cutsforth-Gregory JK, Benson JC, Brinjikji W, Mark IT, Verdoorn JT. Conebeam CT as an Adjunct to Digital Subtraction Myelography for Detection of CSF-Venous Fistulas. AJNR Am J Neuroradiol. 2023 Mar; 44 (3):347-350 Epub 2023 Feb 09
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  34. Dilwali S, Mark I, Waubant E. MRI lesions can often precede trigeminal neuralgia symptoms by years in multiple sclerosis. J Neurol Neurosurg Psychiatry. 2023 Mar; 94 (3):189-192 Epub 2022 Nov 17
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  35. Mark IT, Wren-Jarvis J, Xiao J, Cai LT, Parekh S, Bourla I, Lazerwitz MC, Rowe MA, Marco EJ, Mukherjee P. Neurite orientation dispersion and density imaging of white matter microstructure in sensory processing dysfunction with versus without comorbid ADHD. Front Neurosci. 2023; 17:1136424 Epub 2023 July 10
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  36. Mark IT, Morris PP, Brinjikji W, Madhavan AA, Cutsforth-Gregory JK, Verdoorn JT. Sacral CSF-Venous Fistulas and Potential Imaging Techniques. AJNR Am J Neuroradiol. 2022 Dec; 43 (12):1824-1826 Epub 2022 Nov 03
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  37. Mark IT, Amans MR, Shah VN, Narsinh KH, Caton MT, Teixeira S, Dillon WP. Resisted Inspiration: A New Technique to Aid in the Detection of CSF-Venous Fistulas. AJNR Am J Neuroradiol. 2022 Oct; 43 (10):1544-1547 Epub 2022 Sept 22
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  38. Lazerwitz MC, Rowe MA, Trimarchi KJ, Garcia RD, Chu R, Steele MC, Parekh S, Wren-Jarvis J, Bourla I, Mark I, Marco EJ, Mukherjee P. Brief Report: Characterization of Sensory Over-Responsivity in a Broad Neurodevelopmental Concern Cohort Using the Sensory Processing Three Dimensions (SP3D) Assessment. J Autism Dev Disord. 2022 Sep 30 Epub 2022 Sept 30
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  39. Mark IT, Glastonbury CM. Diffuse Basisphenoid Enhancement: Possible Differentiating Feature for Granulomatous Hypophysitis. AJNR Am J Neuroradiol. 2022 Sep; 43 (9):1341-1345 Epub 2022 Aug 25
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  40. Mark IT, Glastonbury CM. Role of Computed Tomography and Magnetic Resonance Imaging in the Evaluation of Headache Due to Paranasal Sinus and Teeth Disorder. Neurol Clin. 2022 Aug; 40 (3):631-639 Epub 2022 June 29
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  41. Caton MT Jr, Mark IT, Narsinh KH, Baker A, Cooke DL, Hetts SW, Dowd CF, Halbach VV, Higashida RT, Ko NU, Chung SA, Amans MR. Endovascular Therapy for Intracranial Giant Cell Arteritis : Systematic Review, Technical Considerations and the Effect of Intra-arterial Calcium Channel Blockers. Clin Neuroradiol. 2022 May 3 Epub 2022 May 03
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  42. Mark IT, Van Gompel JJ, Inwards CY, Ball MK, Morris JM, Carr CM. MRI enhancement patterns in 28 cases of clival chordomas. J Clin Neurosci. 2022 May; 99:117-122 Epub 2022 Mar 09
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  43. Mark IT, Dillon WP, Richie MB, Villanueva-Meyer JE. MRI Findings after Recent Image-Guided Lumbar Puncture: The Rate of Dural Enhancement and Subdural Collections. AJNR Am J Neuroradiol. 2022 May; 43 (5):784-788 Epub 2022 Apr 28
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  44. Mark IT, Luetmer PH, Rydberg CH, Witte RJ, Geske JR, Johnson MP, Lehman VT. Signal intensity of perirolandic cortex identifies the central sulcus on double inversion recovery MRI. J Neurosurg Sci. 2022 Feb; 66(1):1-8. Epub 2019 Apr 02.
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  45. Badiee RK, Popowitz E, Mark IT, Alcon A, Hwang J, Rorison E, Auguste KI, Hoffman WY, Sun PP, Pomerantz JH. Superior Long-term Appearance of Strip Craniectomy Compared with Cranial Vault Reconstruction in Metopic Craniosynostosis. Plast Reconstr Surg Glob Open. 2022 Feb; 10 (2):e4097 Epub 2022 Feb 09
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  46. Mark IT, Maddox DE, McDonald RJ, Kallmes DF, McDonald JS. Immunologic biomarker changes in patients exposed to intravenous iodinated contrast material. Ann Allergy Asthma Immunol 2021 Jul; 127 (1):135-136 Epub 2021 Mar 27
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  47. Mark IT, Nasr DM, Huston J, de Maria L, de Sanctis P, Lehman VT, Rabinstein AA, Saba L, Brinjikji W. Embolic Stroke of Undetermined Source and Carotid Intraplaque Hemorrhage on MRI : A Systemic Review and Meta-Analysis. Clin Neuroradiol. 2021 Jun; 31 (2):307-313 Epub 2020 July 09
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  48. Seyedsaadat SM, Neuhaus AA, Nicholson PJ, Polley EC, Hilditch CA, Mihal DC, Krings T, Benson JC, Mark I, Kallmes DF, Brinjikji W, Schaafsma JD. Differential Contribution of ASPECTS Regions to Clinical Outcome after Thrombectomy for Acute Ischemic Stroke. AJNR Am J Neuroradiol. 2021 Jun; 42 (6):1104-1108 Epub 2021 Apr 29
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  49. Zahid A, Mark IT, Gilbertson JR, Johnson DR. Cerebral malaria with extensive subcortical microhemorrhages. Oxf Med Case Reports. 2021 May; 2021 (5):omab028 Epub 2021 May 24
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  50. Benson JC, Seyedsaadat SM, Mark I, Nasr DM, Rabinstein AA, Kallmes DF, Brinjikji W. Leukoaraiosis and acute ischemic stroke: 90-day clinical outcome following endovascular recanalization, with proposed "L-ASPECTS". J Neurointerv Surg. 2021 Apr; 13 (4):384-389 Epub 2020 June 02
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  51. Mark IT, Black DF, DeLone DR, Passe TJ, Witte RJ, Little JT, Ho ML, Fagan AJ, Parney IF, Burns TC, Welker KM. Higher temporal resolution multiband fMRI provides improved presurgical language maps. Neuroradiology. 2021 Mar; 63(3):439-445. Epub 2020 Oct 06.
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  52. Rizvi A, Marcus RP, Guo Y, Carter R, Mark IT, Foley TA, Weber NM, Sheedy EN, Leng S, Williamson EE. Dynamic computed tomographic assessment of the mitral annulus in patients with and without mitral prolapse. J Cardiovasc Comput Tomogr. 2020 Nov-Dec; 14 (6):502-509 Epub 2020 Feb 27
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  53. Nicholson P, Hilditch CA, Neuhaus A, Seyedsaadat SM, Benson JC, Mark I, Tsang COA, Schaafsma J, Kallmes DF, Krings T, Brinjikji W. Per-region interobserver agreement of Alberta Stroke Program Early CT Scores (ASPECTS). J Neurointerv Surg. 2020 Nov; 12 (11):1069-1071 Epub 2020 Feb 05
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  54. Mark I, Seyedsaadat SM, Benson JC, Kallmes DF, Rabinstein AA, Brinjikji W. Leukoaraiosis and collateral blood flow in stroke patients with anterior circulation large vessel occlusion. J Neurointerv Surg. 2020 Oct; 12 (10):942-945 Epub 2020 Jan 20
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  55. Brinjikji W, Mark IT, Silvera VM, Guerin JB. Cervicofacial Venous Malformations Are Associated with Intracranial Developmental Venous Anomalies and Dural Venous Sinus Abnormalities. AJNR Am J Neuroradiol. 2020 Jul; 41 (7):1209-1214 Epub 2020 June 25
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  56. Neuhaus A, Seyedsaadat SM, Mihal D, Benson JC, Mark I, Kallmes DF, Brinjikji W. Region-specific agreement in ASPECTS estimation between neuroradiologists and e-ASPECTS software. J Neurointerv Surg. 2020 Jul; 12 (7):720-723 Epub 2019 Dec 09
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  57. Mark IT, Carr CM, Ruff MW, Flanagan EP, Johnson DR. Enlarging Perivascular Spaces Following Radiation Therapy in the Brain: A Report of 2 Cases and Literature Review. World Neurosurg. 2020 Jun; 138:436-439 Epub 2020 Apr 03
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  58. Rienzo C, Mark I. Serendipitous Diagnosis of a Ganglioneuroma in a Diagnostic Medical Sonography Educational Journal of Diagnostic Medical Sonography.. 2016.
  59. Raslau FD, Mark IT, Klein AP, Ulmer JL, Mathews V, Mark LP. Memory part 2: the role of the medial temporal lobe. AJNR Am J Neuroradiol. 2015 May; 36 (5):846-9 Epub 2014 Nov 20
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