๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Astroblastoma: diffusion MRI, and proton MR spectroscopy

โœ Scribed by R.N. Sener

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
355 KB
Volume
26
Category
Article
ISSN
0895-6111

No coin nor oath required. For personal study only.

โœฆ Synopsis

A patient with grade II astroblastoma is reported. The tumor revealed an inhomogenous enhancement pattern on T1-weighted images after contrast medium. It contained cyst-like structures with high signal in FLAIR images, consistent with presence of viscous material. In spectroscopy, NAA was decreased, and Cho was increased. Peaks belonging to lipids and a combined broad peak belonging to myoinositol and glycine were noticed. In diffusion MRI, the mean apparent diffusion coefยฎcient (ADC) value of intratumoral cyst-like structures was 2.12 ยฃ 10 23 mm 2 /s less than that of CSF. The matrix of the tumor had lower ADC values ranging from 1.19 to 1.25 ยฃ 10 23 mm 2 /s, higher than that of normal cerebral parenchyma.

๐Ÿ“œ SIMILAR VOLUMES

Maple syrup urine disease: Diffusion MRI
Maple syrup urine disease: Diffusion MRI, and proton MR spectroscopy findings
โœ R. Nuri Sener ๐Ÿ“‚ Article ๐Ÿ“… 2007 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 484 KB

A 7-month-old boy is reported with acute metabolic crisis of maple syrup urine disease. A reversible intramyelinic type of edema was noted by diffusion MRI which completely resolved in 3 months in accordance with good clinical outcome. Proton MR spectroscopy revealed decreased NAA, and presence of m

Correlation of proton MR spectroscopy an
Correlation of proton MR spectroscopy and diffusion tensor imaging
โœ Roy Irwan; Paul E. Sijens; Jan-Hendrik Potze; Matthijs Oudkerk ๐Ÿ“‚ Article ๐Ÿ“… 2005 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 513 KB

Proton magnetic resonance spectroscopy ((1)H-MRS) provides indices of neuronal damage. Diffusion tensor imaging (DTI) relates to water diffusivity and fiber tract orientation. A method to compare (1)H-MRS and DTI findings was developed, tested on phantom and applied on normal brain. Point-resolved s