Index by author
Pillai, Jay J.
- Ultra-High-Field MRI/Imaging of Epilepsy/Demyelinating Diseases/Inflammation/InfectionYou have accessPrevalence of Developmental Venous Anomalies in Association with Sporadic Cavernous Malformations on 7T MRIPetrice M. Cogswell, Jay J. Pillai, Giuseppe Lanzino and Kelly D. FlemmingAmerican Journal of Neuroradiology January 2024, 45 (1) 72-75; DOI: https://doi.org/10.3174/ajnr.A8072
Pishgar, Farhad
- FELLOWS' JOURNAL CLUBSpine Imaging and Spine Image-Guided InterventionsYou have accessFrequency of Coexistent Spinal Segment Variants: Retrospective Analysis in Asymptomatic Young AdultsEdward S. Yoon, Farhad Pishgar, Avneesh Chhabra, Filippo Del Grande and John A. CarrinoAmerican Journal of Neuroradiology January 2024, 45 (1) 119-126; DOI: https://doi.org/10.3174/ajnr.A8071
Spinal segment variants are highly prevalent and can potentially lead to incorrect spinal enumeration. The objective of this study was to assess the prevalence of spinal segment variants and to study the potential association among these variants in an asymptomatic population. The results showed that the spinal segment variants are highly prevalent, ranging from 4.2% (cervical rib) to 26.4% (LSTV), and that these variants are associated with each other. The authors recommend further imaging for spine enumeration before interventions or operations when a spinal segment variant is identified.
Poublanc, Julien
- EDITOR'S CHOICENeurovascular/Stroke ImagingOpen AccessThe Choroid Plexus as an Alternative Locus for the Identification of the Arterial Input Function for Calculating Cerebral Perfusion Metrics Using MRIOlivia Sobczyk, Ece Su Sayin, Julien Poublanc, James Duffin, Andrea Para, Joseph A. Fisher and David J. MikulisAmerican Journal of Neuroradiology January 2024, 45 (1) 44-50; DOI: https://doi.org/10.3174/ajnr.A8099
MR imaging-based cerebral perfusion metrics can be obtained by tracing a contrast bolus through the brain microvasculature. The authors compared the calculated resting relative perfusion metrics obtained from the choroid plexus (CP) with those obtained from the middle cerebral artery (MCA) in healthy participants and patients with glioma. The findings of this study suggest that an arterial input function chosen from within the CP is comparable with one chosen from the MCA and may be an alternative, particularly when there is no suitable MCA location to interrogate.
- Neurovascular/Stroke ImagingOpen AccessAssessing Perfusion in Steno-Occlusive Cerebrovascular Disease Using Transient Hypoxia-Induced Deoxyhemoglobin as a Dynamic Susceptibility Contrast AgentEce Su Sayin, James Duffin, Vittorio Stumpo, Jacopo Bellomo, Marco Piccirelli, Julien Poublanc, Vepeson Wijeya, Andrea Para, Athina Pangalu, Andrea Bink, Bence Nemeth, Zsolt Kulcsar, David J. Mikulis, Joseph A. Fisher, Olivia Sobczyk and Jorn FierstraAmerican Journal of Neuroradiology January 2024, 45 (1) 37-43; DOI: https://doi.org/10.3174/ajnr.A8068
Qiu, W.
- LetterYou have accessResponse to Letter Regarding the Article “Automated Segmentation of Intracranial Thrombus on NCCT and CTA in Patients with Acute Ischemic Stroke Using a Coarse-to-Fine Deep Learning Model”Kairan Zhu, B.K. Menon and W. QiuAmerican Journal of Neuroradiology January 2024, 45 (1) E1; DOI: https://doi.org/10.3174/ajnr.A8075
Rahmani, Redi
- NeurointerventionYou have accessIschemic Stroke Thrombus Perviousness Is Associated with Distinguishable Proteomic Features and Susceptibility to ADAMTS13-Augmented ThrombolysisDerrek Schartz, Sajal Medha K. Akkipeddi, Redi Rahmani, Nathaniel Ellens, Clifton Houk, Gurkirat Singh Kohli, Logan Worley, Kevin Welle, Tarun Bhalla, Thomas Mattingly, Craig Morrell and Matthew T. BenderAmerican Journal of Neuroradiology January 2024, 45 (1) 22-29; DOI: https://doi.org/10.3174/ajnr.A8069
Rho, Myung-Ho
- Neuroimaging Physics/Functional Neuroimaging/CT and MRI TechnologyYou have accessDisconnection-Based Prediction of Poststroke DysphagiaKyung Jae Yoon, Chul-Hyun Park, Myung-Ho Rho and Minchul KimAmerican Journal of Neuroradiology January 2024, 45 (1) 57-65; DOI: https://doi.org/10.3174/ajnr.A8074
Rozen, Todd D.
- Spine Imaging and Spine Image-Guided InterventionsYou have accessLateral Decubitus Dynamic CT Myelography with Real-Time Bolus Tracking (dCTM-BT) for Evaluation of CSF-Venous Fistulas: Diagnostic Yield Stratified by Brain Imaging FindingsThien J. Huynh, Donna Parizadeh, Ahmed K. Ahmed, Christopher T. Gandia, Hal C. Davison, John V. Murray, Ian T. Mark, Ajay A. Madhavan, Darya Shlapak, Todd D. Rozen, Waleed Brinjikji, Prasanna Vibhute, Vivek Gupta, Kacie Brewer and Olga FermoAmerican Journal of Neuroradiology January 2024, 45 (1) 105-112; DOI: https://doi.org/10.3174/ajnr.A8082
Safoora, Fatima
- FELLOWS' JOURNAL CLUBNeurointerventionOpen AccessMR Thermometry during Transcranial MR Imaging–Guided Focused Ultrasound Procedures: A ReviewRaghav R. Mattay, Kisoo Kim, Lubdha Shah, Bhavya Shah, Leo Sugrue, Fatima Safoora, Eugene Ozhinsky and Kazim H. NarsinhAmerican Journal of Neuroradiology January 2024, 45 (1) 1-8; DOI: https://doi.org/10.3174/ajnr.A8038
Transcranial MR imaging-guided focused ultrasound enables precise delivery of energy through an intact skull for the treatment of various neurologic disorders. Real-time and noninvasive MR thermometry is critical to achieve precise and controlled transcranial focused ultrasound treatments. This article provides an updated review on clinically applicable considerations of proton resonance frequency MR thermometry, including pitfalls and limitations, to avoid complications during MRgFUS procedures.
Sandhu, S.J.S.
- EDITOR'S CHOICEUltra-High-Field MRI/Imaging of Epilepsy/Demyelinating Diseases/Inflammation/InfectionYou have accessCentral Vein Sign in Multiple Sclerosis: A Comparison Study of the Diagnostic Performance of 3T versus 7T MRILela Okromelidze, Vishal Patel, Rahul B. Singh, Alfonso S. Lopez Chiriboga, Shengzhen Tao, Xiangzhi Zhou, Sina Straub, Erin M. Westerhold, Vivek Gupta, Amit K. Agarwal, John V. Murray, Amit Desai, S.J.S. Sandhu, I. Vanessa Marin Collazo and Erik H. MiddlebrooksAmerican Journal of Neuroradiology January 2024, 45 (1) 76-81; DOI: https://doi.org/10.3174/ajnr.A8083
The perivenular relationship of MS demyelinating plaque is thought to represent one of the most histologically specific features of MS. In this retrospective study, the authors directly compared the utility of 3T SWI, 7T SWI, and T2&WI in detecting central vein sign (CVS) and the ability of CVS to differentiate MS from nonspecific WM lesions in patients without MS (presumed vascular origin) in a large cohort of patients. They found that 7T SWI and T2* (73% and 87% of lesions, respectively) showed significantly more CVSs than 3T (31%). Both T2*WI and 7T SWI sequences were 100% accurate (AUC=1.0) for diagnosing MS from WM lesions of presumed vascular origin, which was superior to 3T (AUC=0.975).
Sargento-freitas, João
- FELLOWS' JOURNAL CLUBNeurovascular/Stroke ImagingYou have accessCTA and CTP for Detecting Distal Medium Vessel Occlusions: A Systematic Review and Meta-analysisJoão André Sousa, Anton Sondermann, Sara Bernardo-Castro, Ricardo Varela, Helena Donato and João Sargento-FreitasAmerican Journal of Neuroradiology January 2024, 45 (1) 51-56; DOI: https://doi.org/10.3174/ajnr.A8080
This systematic review and meta-analysis aimed to compare the diagnostic test accuracy for CTA and CTP in the detection of distal medium vessel occlusion. The study found consistent evidence for a higher sensitivity in detecting distal medium vessel occlusion, particularly in arteries beyond the M2 segment of MCA, with multiphase CTA or CTP compared with single-phase CTA.
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