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Noncontrast Pediatric Brain Perfusion
This article discusses the technical aspects of ASL and IVIM with a focus on normal physiologic variations, technical parameters, and artifacts. Multiple pediatric clinical applications are presented, including tumors, stroke, vasculopathy, vascular malformations, epilepsy, migraine, trauma, and inflammation.
Source: Magnetic Resonance Imaging Clinics of North America - October 28, 2021 Category: Radiology Authors: Danny J.J. Wang, Denis Le Bihan, Ram Krishnamurthy, Mark Smith, Mai-Lan Ho Source Type: research

Sodium MR Neuroimaging ADULT BRAIN
SUMMARY: Sodium MR imaging has the potential to complement routine proton MR imaging examinations with the goal of improving diagnosis, disease characterization, and clinical monitoring in neurologic diseases. In the past, the utility and exploration of sodium MR imaging as a valuable clinical tool have been limited due to the extremely low MR signal, but with recent improvements in imaging techniques and hardware, sodium MR imaging is on the verge of becoming clinically realistic for conditions that include brain tumors, ischemic stroke, and epilepsy. In this review, we briefly describe the fundamental physics of sodium M...
Source: American Journal of Neuroradiology - November 11, 2021 Category: Radiology Authors: Hagiwara, A., Bydder, M., Oughourlian, T. C., Yao, J., Salamon, N., Jahan, R., Villablanca, J. P., Enzmann, D. R., Ellingson, B. M. Tags: ADULT BRAIN Source Type: research

A novel nomogram to predict overall survival in head and neck cancer survivors with radiation-induced brain necrosis
CONCLUSION: In this LASSO-Cox model-based nomogram study, we developed and validated an easily applied model to predict overall survival in head and neck cancer survivors following an RN diagnosis.PMID:35121029 | DOI:10.1016/j.radonc.2022.01.033
Source: Radiotherapy and Oncology : journal of the European Society for Therapeutic Radiology and Oncology - February 5, 2022 Category: Radiology Authors: Dong Pan Xiaoming Rong Yingying Zhu Wai Tong Ng Dongping Chen Honghong Li Yongteng Xu Yamei Tang Radiation Oncology Palliative Care Collaborative Group Source Type: research

Multidelay ASL of the pediatric brain
Br J Radiol. 2022 Apr 22:20220034. doi: 10.1259/bjr.20220034. Online ahead of print.ABSTRACTArterial spin labeling (ASL) is a powerful noncontrast MRI technique for evaluation of cerebral blood flow (CBF). A key parameter in single-delay ASL is the choice of postlabel delay (PLD), which refers to the timing between the labeling of arterial free water and measurement of flow into the brain. Multidelay ASL (MDASL) utilizes several PLDs to improve the accuracy of CBF calculations using arterial transit time (ATT) correction. This approach is particularly helpful in situations where ATT is unknown, including young subjects and...
Source: The British Journal of Radiology - April 22, 2022 Category: Radiology Authors: Xavier Golay Mai-Lan Ho Source Type: research

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