Maria Gabriela Longo

Fellowship-trained Neuroradiologist and Emergency Radiologist with extensive experience in clinical research, specializing in innovative therapies for traumatic brain injury. Expertise includes accelerated MRI sequences and optimized MRI protocols, demonstrating a strong commitment to advancing imaging techniques. Accomplished researcher with an h-index of 17 and publications in prestigious journals such as JAMA and Radiology. Passionate about education and dedicated to mentoring radiology residents, actively contributing to the evolution of the radiology field.

• CAQ Neuroradiology - American Board of Radiology 2024
• American Board of Radiology (ABR) Diagnostic Radiology Certification September 2022
• Education Commission for Foreign Medical Graduates March 2019

• Magna Cum Laude, ISMRM annual meeting, Montreal, Canada. 2019 Abstract titled: “Prospective Evaluation of Wave-CAIPI Susceptibility-Weighted Imaging (SWI) Compared to Conventional 3D SWI in a Clinical Setting”

• Travel Award, RSNA annual meeting 2016 Abstract titled “Whole-body Cooling and MRI Findings to Predict Neurodevelopment Injury in the Hypoxic-Ischemic Encephalopathy Perinatal”

• "Low-Level Light Therapy Effect on Metabolites measured by Magnetic Resonance Spectroscopy in Patients with Moderate Traumatic Brain Injury: A Double-blind, Randomized, Placebo-controlled Clinical Trial." Ratai EM, Wenke MR, Mercaldo N, Chan ST, Figueiro Longo MG, Welt J, Avesta A, Lee J, Lev MH, Parry BA, Drake L, Anderson RR, Rauch T, Diaz-Arrastia R, Hamblin MR, Vakoc BJ, Gupta R. AJNR Am J Neuroradiol. Published online September 9, 2025.
• "Effects of Low-Level Light Therapy on Resting-State Connectivity Following Moderate Traumatic Brain Injury: Secondary Analyses of a Double-blinded Placebo-controlled Study. Radiology." Chan ST, Mercaldo N, Figueiro Longo MG, Welt J, Avesta A, Lee J, Lev MH, Ratai EM, Wenke MR, Parry BA, Drake L, Anderson RR, Rauch T, Diaz-Arrastia R, Kwong KK, Hamblin M, Vakoc BJ, Gupta R. Radiology. 2024;311(2):e230999.
• “Clinical Evaluation of a 2-Minute Ultrafast Brain MR Protocol for Evaluation of Acute Pathology in the Emergency and Inpatient Settings” Min Lang, Bryan Clifford, Wei-Ching Lo, Brooks P Applewhite, Azadeh Tabari, Augusto Lio M Goncalves Filho, Zahra Hosseini, Maria Gabriela Figueiro Longo, Stephen F Cauley, Kawin Setsompop, Berkin Bilgic, Thorsten Feiweier, Michael H Lev, Pamela W Schaefer, Otto Rapalino, Susie Y Huang, John Conklin. AJNR. 2024 Apr 45 (4), 379-385
• “Prediction of oxygen requirement in patients with COVID-19 using a pre-trained chest radiograph xAI model: efficient development of auditable risk prediction models via a fine-tuning approach.” Joowon Chung, Doyun Kim, Jongmun Choi, Sehyo Yune, Kyungdoo Song, Seonkyoung Kim, Michelle Chu, Marc D Succi, John Conklin, Maria G Figueiro Longo, Jeanne B Ackman, Milena Petranovic, Michael H Lev, Synho Do. Scientific Reports. 2022 Dec 12 (1), 21164.
• “All-in-one” window/level whole-body computed tomography scan–A faster way to evaluate trauma cases” Maria Gabriela Figueiro Longo, Pieter Vuylsteke, Can Ozan Tan, Joris AM Soons, Laura Avery, Marc D Succi, Vinit Baliyani, Ali Pourvaziri, Limin Xu, Daniel Chonde, Michael Lev, Jeroen Cant, Rajiv Gupta. Am J Emerg Med. 2022 Oct 7;62:62-68.
• “Case 33-2022: An 11-Year-Old Girl with Redness of the Eyes” Ezra M Cohen, Lucia Sobrin, Maria G Figueiro Longo, Danielle B Pier, Daniel R Brown, Anna M Stagner. N Engl J Med. 2022 Oct 27;387(17):1598-1607.
• “Clinical validation of Wave-CAIPI susceptibility-weighted imaging for routine brain MRI at 1.5 T.” Conklin J and Figueiro Longo MG, Tabari A, Lio Goncalves Filho A, Liu W, Splitthoff DN, Lo WC, Cauley SF, Setsompop K, Schaefer PW, Kirsch JE, Rapalino O, Huang SY. Eur Radiol. 2022 Aug 4.
• “Pediatric Emergency MRI” Figueiro Longo MG, Jaimes C, Machado F, Delgado J, Gee MS. Magnetic Resonance Imaging Clinics of North America. 2022 Aug
• “Accurate auto-labeling of chest X-ray images based on quantitative similarity to an explainable AI model.” Kim D, Chung J, Choi J, Succi MD, Conklin J, Longo MGF, Ackman JB, Little BP, Petranovic M, Kalra MK, Lev MH, Do S. Nat Commun. 2022 Apr 6;13(1):1867.
• “Evaluation of highly accelerated wave controlled aliasing in parallel imaging (Wave-CAIPI) susceptibility-weighted imaging in the non-sedated pediatric setting: a pilot study.” Conklin J, Tabari A, Longo MGF, Cobos CJ, Setsompop K, Cauley SF, Kirsch JE, Huang SY, Rapalino O, Gee MS, Caruso PJ. Pediatr Radiol. 2022 Feb
• “An artificial intelligence-accelerated 2-minute multi-shot echo planar imaging protocol for comprehensive high-quality clinical brain imaging.” Clifford B, Conklin J, Huang SY, Feiweier T, Hosseini Z, Goncalves Filho ALM, Tabari A, Demir S, Lo WC, Longo MGF, Lev M, Schaefer P, Rapalino O, Setsompop K, Bilgic B, Cauley S. Magn Reson Med. 2021 Dec 31.
• “Comparison of ultrafast wave-controlled aliasing in parallel imaging (CAIPI) magnetization-prepared rapid acquisition gradient echo (MP-RAGE) and standard MP-RAGE in non-sedated children: initial clinical experience.” Tabari A, Conklin J, Figueiro Longo MG, Jaimes C, Setsompop K, Cauley SF, Kirsch JE, Huang SY, Rapalino O, Gee MS, Caruso PJ. Pediatr Radiol. 2021 Jul 15.
• “Evaluation of Ultrafast Wave-CAIPI 3D FLAIR in the Visualization and Volumetric Estimation of Cerebral White Matter Lesions.” Chanon Ngamsombat, L Augusto Filho, Maria G Longo, Stephen F Cauley, Kawin Setsompop, John E Kirsch, Qiuyan Tian, Qiuyun Fan, Daniel Polak, Wei Liu, Wei-Ching Lo, Ramon G Gonzalez, Pamela W Schaefer, Otto Rapalino, John Conklin, Susie Y Huang. AJNR Am J Neuroradiol. 2021 Jul 8.
• “MRI Highly Accelerated Wave-CAIPI T1-SPACE versus Standard T1-SPACE to detect brain gadolinium-enhancing lesions at 3T.” Goncalves Filho ALM, Longo MGF, Conklin J, Cauley SF, Polak D, Liu W, Splitthoff DN, Lo WC, Kirsch JE, Setsompop K, Schaefer PW, Huang SY, Rapalino O. J Neuroimaging. 2021 Jun 3.
• “MarkIt: A Collaborative Artificial Intelligence Annotation Platform Leveraging Blockchain For Medical Imaging Research.” Jan Witowski, Jongmum Choi, Soomin Jeon, Doyun Kim, Joowon Chung, John Conklin, Maria Gabriela Figueiro Longo, Marc D Succi, Synho Do. Blockchain in Healthcare Today. 2021 May 5.
• “Accelerated post-contrast Wave-CAIPI T1 SPACE achieves equivalent diagnostic performance compared with Standard T1 SPACE for the detection of brain metastases in clinical 3T MRI.” Lio M Goncalves Filho Augusto, Conklin John, F Longo Maria Gabriela, Cauley Stephen F, Polak Daniel, Liu Wei, Splitthoff Daniel N, Lo John E Kirsch Wei-Ching, Setsompop Kawin, Schaefer Pamela W, Huang Susie Y, Rapalino Otto. J Neuroimaging. 2021 Jun 3.
• “Effect of Transcranial Low-Level Light Therapy vs Sham Therapy Among Patients With Moderate Traumatic Brain Injury: A Randomized Clinical Trial.” Figueiro Longo MG, Tan CO, Chan ST, Welt J, Avesta A, Ratai E, Mercaldo ND, Yendiki A, Namati J, Chico-Calero I, Parry BA, Drake L, Anderson R, Rauch T, Diaz-Arrastia R, Lev M, Lee J, Hamblin M, Vakoc B, Gupta R. JAMA Netw Open. 2020 Sep 1;3(9):e2017337.
• “Evaluation of Ultrafast Wave-CAIPI MPRAGE for Visual Grading and Automated Measurement of Brain Tissue Volume.” Longo, M., Conklin, J., Cauley, S. F., Setsompop, K., Tian, Q., Polak, D., Polackal, M., Splitthoff, D., Liu, W., González, R. G., Schaefer, P. W., Kirsch, J. E., Rapalino, O., & Huang, S. Y. AJNR Am J Neuroradiol. 2020;41(8):1388-1396.
• “Depressive symptoms in Fabry disease: the importance of coping, subjective health perception and pain.” Körver S, Geurtsen GJ, Hollak CEM, van Schaik IN, Longo MGF, Lima MR, Vedolin L, Dijkgraaf MGW, Langeveld M. Orphanet. J Rare Dis. 2020;15(1):28.
• “Determinants of Cerebral Radiological Progression in Fabry Disease” Körver S, Longo MGF, Lima MR, Hollak CEM, El Sayed M, van Schaik IN, Vedolin L, Dijkgraaf MGW, Langeveld M. J Neurol Neurosurg Psychiatry, 2020 Apr 21.
• “Validation of Highly-Accelerated Wave-CAIPI Susceptibility-Weighted Imaging (SWI) Compared to Conventional SWI and T2
• -Weighted Gradient-Echo for Routine Clinical Brain MRI at 3T” Conklin J and Figueiro Longo MG, Cauley SF, Setsompop K, Kirsch JE, González RG, Schaefer PW, Rapalino O, and Huang SY. AJNR Am J Neuroradiol. 2019.
• “Outcome and feasibility after seven years of therapeutic hypothermia in southern Brazil.” Procianoy RS, Corso AL, Schoenardie B, Oliveira GPF, Longo MG, Silveira RC. Am J Perinatol. 2019 Jun 6.
• “A highly-accelerated volumetric brain examination using optimized Wave-CAIPI encoding” Polak D, Cauley S, Huang SY, Longo MG, Conklin J, Bilgic B, Ohringer N, Raithel E, Bachert P, Wald LL, Setsompop K. Journal of Magnetic Resonance Imaging. J Magn Reson Imaging. 2019.
• “Predictors of objective cognitive impairment and subjective cognitive complaints in patients with Fabry disease” Körver S, Geurtsen GJ, Hollak CEM, van Schaik IN, Longo MGF, Lima MR, Vedolin L, Dijkgraaf MGW, Langeveld M. Nature Sci Rep. 2019.
• “Therapeutic hypothermia for neonatal hypoxic-ischemic encephalopathy: magnetic resonance imaging findings and neurological outcomes in a Brazilian cohort” Procianoy RS, Corso AL, Longo MG, Vedolin L, Silveira RC. J Matern Fetal Neonatal Med. 2018.
• “Computed Tomography Evaluation of the Correspondence Between the Arcuate Eminence and the Superior Semicircular Canal” Santos FP, Longo MG, May GG, Isolan GR. World Neurosurgery, 2017.
• “Correlation of CSF flow using phase-contrast MRI with ventriculomegaly and CSF opening pressure in mucopolysaccharidoses” Dalla-Corte A, Souza CFM, Anés M, Maeda FK, Lokossou A, Vedolin LM, Longo MG, Ferreira MM, Perrone SGP, Baldéedt O, Giugliani R. Fluids and Barriers of the CNS, 2017.
• “An algorithm to assess the need for CSF shunting in mucopolysaccharidosis patients” Dalla-Corte A, Souza CFM, Vairo F, Vedolin LM, Longo MG, Anés M, Maeda FK, Federhen A, Rosa AT, Giugliani R. Molecular Genetics and Metabolism, 2017.
• “Diagnostic Performance of a 10-Minute Gadolinium-Enhanced Brain MRI Protocol Compared with the Standard Clinical Protocol for Detection of Intracranial Enhancing Lesions” Fagundes J, Longo MG, Huang SY, Rosen BR, Witzel T, Heberlein K, Gonzalez RG, Schaefer P, Rapalino O. AJNR 2017
• “Simultaneous Multislice–Based 5-Minute Lumbar Spine MRI Protocol: Initial Experience in a Clinical Setting” MG Longo, J Fagundes, S Huang, W Mehan, T Witzel, H Bhat, K Heberlein, BR Rose, D Rosenthal, RG Gonzalez, PW Schaefer, O Rapalino. Journal of Neuroimaging, 2017.
• “Advanced Neuroimaging Methods for Assessment of Low-level Light Therapy” Suk-tak Chan, Maria Gabriela Longo, Eva-Maria Ratai, Rajiv Gupta. Chapter 27, Photobiomodulation in the Brain: Low-Level Laser (Light Therapy in Neurology and Neuroscience (M. Hamblin, Y Huang, Academic Press, 2019, ISBN: 9780128153055).

• Google Scholar
• ResearchGate