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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

Standardized acquisition and post-processing of dynamic susceptibility contrast perfusion in patients with brain tumors, cerebrovascular disease and dementia: comparability of post-processing software.
CONCLUSION: Despite a highly standardized workflow, parametric perfusion maps are depended on the chosen software. Radiologists should consider software related variances when using dynamic susceptibility contrast perfusion for clinical imaging and research. ADVANCES IN KNOWLEDGE: This multicenter study compared perfusion parameters calculated by two commercial dynamic susceptibility contrast perfusion post-processing software solutions in different central nervous system disorders with a large sample size and a highly standardized processing workflow. Despite, parametric perfusion maps are depended on the chosen soft...
Source: The British Journal of Radiology - October 15, 2019 Category: Radiology Authors: Schmidt M, Knott M, Hoelter P, Engelhorn T, Elna Marie L, Than N, Marco E, Doerfler A Tags: Br J Radiol Source Type: research