Three-dimensional multivoxel proton MR spectroscopy of the brain in children with neurofibromatosis type 1

Oded Gonen, Zhiyue J. Wang, A. Kasi Viswanathan, Patricia T. Molloy, Robert A. Zimmerman

Research output: Contribution to journalArticle

37 Citations (Scopus)

Abstract

BACKGROUND AND PURPOSE: Neurofibromatosis type 1 (NF1), the most common autosomal dominant genetic disorder, frequently manifests as focal areas of signal intensity (FASI) on T2-weighted MR images. The purpose of our study was to investigate whether tumor(s), focal areas of signal intensity (FASI), and normal brain can be differentiated by using 3D multivoxel localized proton MR spectroscopy in children with neurofibromatosis type 1 (NF1) disorder. METHODS: Five children with NF1 and two healthy control subjects, all in the 3- to 11-year-old age group, were studied with a new 3D proton MR spectroscopy technique: a hybrid of 1D fourth-order transverse Hadamard spectroscopic imaging and 2D chemical shift imaging. A 3D volume-of-interest (VOI) was image-guided onto the site of the abnormality and identified on three orthogonal images. Proton MR spectroscopy partitioned the VOI into 6 x 6 x 4 (or 8 x 8 x 4) voxels, 1.5 (or 1.0) cm3 each. RESULTS: Simultaneous coverage of the entire VOI yielded good spectral signal-to-noise ratio from 136 (or 256) voxels in 27 minutes. Proton MR spectroscopy indicated that FASI a) are characterized by significantly elevated choline (Cho), reduced creatine (Cr), 2>Cho: Cr>1.3, and near normal N-acetylaspartate (NAA) levels; b) are different from tumors that exhibit Cho:Cr>2 and no NAA; c) have no intrinsic lipid or lactate signal(s); and d) correlate in spatial extent but are more extensive than indicated by MR imaging. CONCLUSION: Three- dimensional multivoxel proton MR spectroscopy reveals distinct metabolic features that differentiate normal, FASI, and tumor regions in the pediatric brain.

Original languageEnglish (US)
Pages (from-to)1333-1341
Number of pages9
JournalAmerican Journal of Neuroradiology
Volume20
Issue number7
StatePublished - 1999

Fingerprint

Neurofibromatosis 1
Protons
Magnetic Resonance Spectroscopy
Creatine
Choline
Brain
Neoplasms
Inborn Genetic Diseases
Signal-To-Noise Ratio
Lactic Acid
Healthy Volunteers
Age Groups
Magnetic Resonance Imaging
Pediatrics
Lipids

ASJC Scopus subject areas

  • Clinical Neurology
  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology

Cite this

Three-dimensional multivoxel proton MR spectroscopy of the brain in children with neurofibromatosis type 1. / Gonen, Oded; Wang, Zhiyue J.; Viswanathan, A. Kasi; Molloy, Patricia T.; Zimmerman, Robert A.

In: American Journal of Neuroradiology, Vol. 20, No. 7, 1999, p. 1333-1341.

Research output: Contribution to journalArticle

Gonen, Oded ; Wang, Zhiyue J. ; Viswanathan, A. Kasi ; Molloy, Patricia T. ; Zimmerman, Robert A. / Three-dimensional multivoxel proton MR spectroscopy of the brain in children with neurofibromatosis type 1. In: American Journal of Neuroradiology. 1999 ; Vol. 20, No. 7. pp. 1333-1341.
@article{c878cfc9400142858a6bfee819ef7d84,
title = "Three-dimensional multivoxel proton MR spectroscopy of the brain in children with neurofibromatosis type 1",
abstract = "BACKGROUND AND PURPOSE: Neurofibromatosis type 1 (NF1), the most common autosomal dominant genetic disorder, frequently manifests as focal areas of signal intensity (FASI) on T2-weighted MR images. The purpose of our study was to investigate whether tumor(s), focal areas of signal intensity (FASI), and normal brain can be differentiated by using 3D multivoxel localized proton MR spectroscopy in children with neurofibromatosis type 1 (NF1) disorder. METHODS: Five children with NF1 and two healthy control subjects, all in the 3- to 11-year-old age group, were studied with a new 3D proton MR spectroscopy technique: a hybrid of 1D fourth-order transverse Hadamard spectroscopic imaging and 2D chemical shift imaging. A 3D volume-of-interest (VOI) was image-guided onto the site of the abnormality and identified on three orthogonal images. Proton MR spectroscopy partitioned the VOI into 6 x 6 x 4 (or 8 x 8 x 4) voxels, 1.5 (or 1.0) cm3 each. RESULTS: Simultaneous coverage of the entire VOI yielded good spectral signal-to-noise ratio from 136 (or 256) voxels in 27 minutes. Proton MR spectroscopy indicated that FASI a) are characterized by significantly elevated choline (Cho), reduced creatine (Cr), 2>Cho: Cr>1.3, and near normal N-acetylaspartate (NAA) levels; b) are different from tumors that exhibit Cho:Cr>2 and no NAA; c) have no intrinsic lipid or lactate signal(s); and d) correlate in spatial extent but are more extensive than indicated by MR imaging. CONCLUSION: Three- dimensional multivoxel proton MR spectroscopy reveals distinct metabolic features that differentiate normal, FASI, and tumor regions in the pediatric brain.",
author = "Oded Gonen and Wang, {Zhiyue J.} and Viswanathan, {A. Kasi} and Molloy, {Patricia T.} and Zimmerman, {Robert A.}",
year = "1999",
language = "English (US)",
volume = "20",
pages = "1333--1341",
journal = "American Journal of Neuroradiology",
issn = "0195-6108",
publisher = "American Society of Neuroradiology",
number = "7",

}

TY - JOUR

T1 - Three-dimensional multivoxel proton MR spectroscopy of the brain in children with neurofibromatosis type 1

AU - Gonen, Oded

AU - Wang, Zhiyue J.

AU - Viswanathan, A. Kasi

AU - Molloy, Patricia T.

AU - Zimmerman, Robert A.

PY - 1999

Y1 - 1999

N2 - BACKGROUND AND PURPOSE: Neurofibromatosis type 1 (NF1), the most common autosomal dominant genetic disorder, frequently manifests as focal areas of signal intensity (FASI) on T2-weighted MR images. The purpose of our study was to investigate whether tumor(s), focal areas of signal intensity (FASI), and normal brain can be differentiated by using 3D multivoxel localized proton MR spectroscopy in children with neurofibromatosis type 1 (NF1) disorder. METHODS: Five children with NF1 and two healthy control subjects, all in the 3- to 11-year-old age group, were studied with a new 3D proton MR spectroscopy technique: a hybrid of 1D fourth-order transverse Hadamard spectroscopic imaging and 2D chemical shift imaging. A 3D volume-of-interest (VOI) was image-guided onto the site of the abnormality and identified on three orthogonal images. Proton MR spectroscopy partitioned the VOI into 6 x 6 x 4 (or 8 x 8 x 4) voxels, 1.5 (or 1.0) cm3 each. RESULTS: Simultaneous coverage of the entire VOI yielded good spectral signal-to-noise ratio from 136 (or 256) voxels in 27 minutes. Proton MR spectroscopy indicated that FASI a) are characterized by significantly elevated choline (Cho), reduced creatine (Cr), 2>Cho: Cr>1.3, and near normal N-acetylaspartate (NAA) levels; b) are different from tumors that exhibit Cho:Cr>2 and no NAA; c) have no intrinsic lipid or lactate signal(s); and d) correlate in spatial extent but are more extensive than indicated by MR imaging. CONCLUSION: Three- dimensional multivoxel proton MR spectroscopy reveals distinct metabolic features that differentiate normal, FASI, and tumor regions in the pediatric brain.

AB - BACKGROUND AND PURPOSE: Neurofibromatosis type 1 (NF1), the most common autosomal dominant genetic disorder, frequently manifests as focal areas of signal intensity (FASI) on T2-weighted MR images. The purpose of our study was to investigate whether tumor(s), focal areas of signal intensity (FASI), and normal brain can be differentiated by using 3D multivoxel localized proton MR spectroscopy in children with neurofibromatosis type 1 (NF1) disorder. METHODS: Five children with NF1 and two healthy control subjects, all in the 3- to 11-year-old age group, were studied with a new 3D proton MR spectroscopy technique: a hybrid of 1D fourth-order transverse Hadamard spectroscopic imaging and 2D chemical shift imaging. A 3D volume-of-interest (VOI) was image-guided onto the site of the abnormality and identified on three orthogonal images. Proton MR spectroscopy partitioned the VOI into 6 x 6 x 4 (or 8 x 8 x 4) voxels, 1.5 (or 1.0) cm3 each. RESULTS: Simultaneous coverage of the entire VOI yielded good spectral signal-to-noise ratio from 136 (or 256) voxels in 27 minutes. Proton MR spectroscopy indicated that FASI a) are characterized by significantly elevated choline (Cho), reduced creatine (Cr), 2>Cho: Cr>1.3, and near normal N-acetylaspartate (NAA) levels; b) are different from tumors that exhibit Cho:Cr>2 and no NAA; c) have no intrinsic lipid or lactate signal(s); and d) correlate in spatial extent but are more extensive than indicated by MR imaging. CONCLUSION: Three- dimensional multivoxel proton MR spectroscopy reveals distinct metabolic features that differentiate normal, FASI, and tumor regions in the pediatric brain.

UR - http://www.scopus.com/inward/record.url?scp=0032786625&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0032786625&partnerID=8YFLogxK

M3 - Article

C2 - 10472995

AN - SCOPUS:0032786625

VL - 20

SP - 1333

EP - 1341

JO - American Journal of Neuroradiology

JF - American Journal of Neuroradiology

SN - 0195-6108

IS - 7

ER -