PURPOSE: To test the feasibility of pediatric perfusion imaging using a pulsed arterial spin labeling (ASL) technique at 1.5 T. MATERIALS AND METHODS: ASL perfusion imaging was carried out on seven neurologically normal children and five healthy adults. The signal-to-noise ratio (SNR) of the perfusion images along with T1, M(0), arterial transit time, and the temporal fluctuation of the ASL image series were measured and compared between the two age groups. In addition, ASL perfusion magnetic resonance (MR) was performed on three children with neurologic disorder. RESULTS: In the cohort of neurologically normal children, a 70% increase in the SNR of the ASL perfusion images and a 30% increase in the absolute cerebral blood flow compared to the adult data were observed. The measures of ASL SNR, T1, and M(0) were found to decrease linearly with age. Transit time and temporal fluctuation of the ASL perfusion image series were not significantly different between the two age groups. The feasibility of ASL in the diagnosis of pediatric neurologic disease was also illustrated. CONCLUSION: ASL is a promising tool for pediatric perfusion imaging given the unique and reciprocal benefits in terms of safety and image quality. Copyright 2003 Wiley-Liss, Inc.
PURPOSE: To test the feasibility of pediatric perfusion imaging using a pulsed arterial spin labeling (ASL) technique at 1.5 T. MATERIALS AND METHODS: ASL perfusion imaging was carried out on seven neurologically normal children and five healthy adults. The signal-to-noise ratio (SNR) of the perfusion images along with T1, M(0), arterial transit time, and the temporal fluctuation of the ASL image series were measured and compared between the two age groups. In addition, ASL perfusion magnetic resonance (MR) was performed on three children with neurologic disorder. RESULTS: In the cohort of neurologically normal children, a 70% increase in the SNR of the ASL perfusion images and a 30% increase in the absolute cerebral blood flow compared to the adult data were observed. The measures of ASL SNR, T1, and M(0) were found to decrease linearly with age. Transit time and temporal fluctuation of the ASL perfusion image series were not significantly different between the two age groups. The feasibility of ASL in the diagnosis of pediatric neurologic disease was also illustrated. CONCLUSION: ASL is a promising tool for pediatric perfusion imaging given the unique and reciprocal benefits in terms of safety and image quality. Copyright 2003 Wiley-Liss, Inc.
Authors: Varsha Jain; Jeffrey Duda; Brian Avants; Mariel Giannetta; Sharon X Xie; Timothy Roberts; John A Detre; Hallam Hurt; Felix W Wehrli; Danny J J Wang Journal: Radiology Date: 2012-05 Impact factor: 11.105
Authors: Turgut Durduran; Chao Zhou; Erin M Buckley; Meeri N Kim; Guoqiang Yu; Regine Choe; J William Gaynor; Thomas L Spray; Suzanne M Durning; Stefanie E Mason; Lisa M Montenegro; Susan C Nicolson; Robert A Zimmerman; Mary E Putt; Jiongjiong Wang; Joel H Greenberg; John A Detre; Arjun G Yodh; Daniel J Licht Journal: J Biomed Opt Date: 2010 May-Jun Impact factor: 3.170
Authors: T Noguchi; H Irie; Y Takase; M Kawashima; T Ootsuka; M Nishihara; Y Egashira; J Nojiri; T Matsushima; S Kudo Journal: Interv Neuroradiol Date: 2010-12-17 Impact factor: 1.610