MRS of the brain and neurological disorders

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1. Verfasser: Igata, Akihiro (VerfasserIn)
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Japanese
Veröffentlicht: Boca Raton [u.a.] CRC Pr. 2000
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Datensatz im Suchindex

_version_ 1804128127829409792
adam_text xvii CONTENTS Contributors iii Collaborators iv Preface Paul A. Bottomley vii Words of Recommendation Teruo Nagai ix A Message of Congratulation on the Publication of MRS of the Brain and Neurological Disorders Haruo Akimoto xi Preface to the First Edition Tetsuhiko Asakura, Akihiro Igata, and Toshiro Fujimoto xiii Pulse Sequence and Informed Consent xxii Introduction Toshiro Fujimoto 1 PART I BACKGROUND AND THEORETICAL BASIS 9 Chapter 1 History of MRS Toshiro Fujimoto 11 1.1 Magnet and Physical Background 11 1.2 Major Accomplishments Concerning MRS and MRI 12 Chapter 2 Basic Principles of MRS Tohru Yamamoto, Norio Iriguchi, and Toshiyuki Miyazaki 21 2.1 Principles of measurements 21 2.1.1 RF coil 21 2.1.2 Localization 21 (1) Single voxel method 22 (2) Multivoxel method 23 (3) Comparison of the single voxel and multivoxel methods 24 2.1.3 Water suppression 26 2.1.4 Reception of signals and RF detection 26 2.2 Post processing 27 2.2.1 Automatic baseline correction for 31P CSI 27 (1) Baseline correction 27 (2) Theory 27 Complete spectrum 27 Observed spectrum 27 Baseline correction spectrum 28 Peak parameters 28 Estimation scheme of values of peak parameters 29 (3) Simulation and discussion 29 (4) Features of the baseline correction 29 2.2.2 Various post processing techniques 30 (1) Apodization 30 (2) Phase correction 30 Constant phase correction 31 Linear phase correction 31 (3) Curve fitting 31 2.3 Factors restricting measurements 32 2.3.1 The sensitivity of the MRS involving biological samples 32 (1) The nuclear sensitivities of various elements 32 (2) The SNR of MRS studies 32 (3) The upper limit of achievable MRS sensitivities 33 2.3.2 Various limitation factors 34 (1) Spatial resolution 34 (2) Spatial contamination 34 (3) Temporal resolution 34 (4) Delay time 34 xviii CONTENTS (5) Eddy currents 34 2.4 Factors affecting the performance 35 2.4.1 Selection of the RF coil 35 2.4.2 Fat suppression 36 2.4.3 Water suppression 36 2.4.4 Local shim 36 2.5 Prospects for the future 36 2.5.1 Improvements in the RF coil technology 37 2.5.2 Quantification 37 Chapter 3 Understanding Spectra of 31P MRS and H MRS Toshiro Fujimoto and Toshihiko Nakano 40 3.1 Major parameters of MRS 40 3.1.1 Chemical shift 40 3.1.2 Spin spin coupling 40 3.1.3 Relaxation mechanisms 40 (1) Spin lattice (longitudinal) relaxation 41 (2) Spin spin (transverse) relaxation 41 (3) Dipole dipole relaxation mechanism of protons in liquids and variation of Ti and T2 with correlation time (rc) 41 3.1.4 Nuclear Overhauser Effect (NOE) and proton decoupling 41 3.2 31P MRS 42 3.2.1 Resonance of PME 42 3.2.2 Resonance of PDE 43 3.2.3 Phospholipids 43 3.2.4 Resonance of ATP, Pi, and PCr 45 3.3 H MRS 46 3.3.1 Resonance of NAA (./V acetylaspartate) 46 3.3.2 Resonance of Cr (creatine and phosphocreatine) 49 3.3.3 Resonance of Cho (choline containing compounds) 50 3.3.4 Resonance of lactate 50 3.3.5 Resonance of NAAG (N acetylaspartylglutamate) 51 3.3.6 Resonance of ml (myo inositol) 52 , 3.3.7 Resonance of Glx (glutamate and glutamine) 52 j 3.3.8 Resonance of GAB A (y aminobutyric acid) 52 Chapter 4 MRS of Healthy Individuals Toshiro Fujimoto 59 4.1 31P MRS by CSI 60 4.1.1 Examples of the 31P spectrum of a healthy individual t 31P spectra of voxels 1 10 60 S 4.1.2 Examples of the 31P spectrum in a healthy individual I 31P spectra of voxels 11 13 63 { 4.1.3 Examples of the 31P spectrum in a healthy individual j 31P spectra of voxels 14 and 15 64 ! 4.1.4 Examples of the 31P spectrum in a healthy individual j 31P spectra obtained by averaging over voxels 65 I 4.1.5 Mean ratios of peaks of the 31P spectrum of healthy individuals 67 } 4.1.6 Examples of the metabolite image and contour map of a healthy individual . • 71 | 4.2 H MRS by the single voxel method 77 j 4.2.1 Examples of the H spectrum of the basal ganglia in a healthy individual . • • • 78 4.2.2 Mean peak ratios in the H spectrum of the basal ganglia regions in healthy individuals 80 4.2.3 Examples of H spectra in mesial temporal lobes in a healthy individual 82 4.2.4 Mean peak ratios in H spectra in mesial temporal lobes in healthy individuals 84 PART II CLINICAL APPLICATIONS 87 Chapter 5 Brain Tumors Masahiro Sasahira 89 5.1 Characteristics of the spectrum 89 CONTENTS xix 5.1.1 31P MRS of brain tumors 89 (1) Quantity of phosphorus compounds 89 (2) Intratumoral pH 89 (3) 31P MRS as a means to monitor therapeutic effects on brain tumors 91 5.1.2 H MRS of brain tumors 91 5.2 Cases (1 21) 94 1 : Pituitary adenoma 94 2 : Pituitary adenoma 96 3 : Meningioma 98 4 : Meningioma 100 5 : Meningioma 102 6 : Neurinoma 104 7 : Epidermoid 106 8 : Astrocytoma (grade I) 108 9: Astrocytoma (grade II) Evaluations before and after ACNU chemotherapy 110 10 : Astrocytoma (grade III) 124 11 : Astrocytoma (grade III) 126 12 : Astrocytoma (grade III) 130 13 : Astrocytoma (grade IV) 132 14: Glioblastoma 134 15 : Glioblastoma 138 16 : Oligodendroglioma 140 17 : Metastatic brain tumor (from the rectum) 142 18 : Metastatic brain tumor (from the lung) 144 19 : Metastatic brain tumor (from the lung) 146 20 : Chondrosarcoma 148 21 : Mucocele 150 5.3 Evaluation of the effects of radiotherapy and chemotherapy on brain tumors 152 5.4 Evaluation of the effects of radiotherapy for brain tumors on normal brain tissue 154 Chapter 6 Cerebral Infarction Kousaku Terada 157 6.1 Characteristics of the spectrum 157 6.2 Cases (24 35) 160 24: 5 hours and 1 year after the stroke (Cerebral infarction of the left and right occipital lobes) 160 25 :2 and 7 days after the stroke (Cerebral infarction of the right temporal and occipital lobes) 162 26 : 2 days after the stroke (Cerebral infarction of the right temporal lobe) 166 27 : 2 days after the stroke (Cerebral infarction of the left frontal and temporal lobes) 168 28 : 3 days after the stroke (Cerebral infarction of the left temporal lobe) 170 29 : 6 days after the stroke (Cerebral infarction of the right frontal and temporal lobes) 172 30: 7 days after the stroke (Cerebral infarction of the right frontal lobe) 174 31:7 days after the stroke (Cerebral infarction in a medial part of the right occipital lobe) 176 32 : 11 weeks after the stroke (Cerebral infarction of the right temporal lobe) 178 33 : 17 months after the stroke (Cerebral infarction of the left temporal lobe) 180 34 : 6 years after the stroke (Cerebral infarction of the left temporal lobe) 182 35 : Course of 31P MRS of cerebral infarction. A summary of 12 cases 184 Chapter 7 Cerebral Arteriovenous Malformation (AVM), Moya Moya Disease Kousaku Terada 185 7.1 Characteristics of the spectrum 185 7.2 Cases (36 40) 186 36 : AVM of the right parietal lobe 186 37 : AVM of the right frontal lobe 188 38 : AVM of the left frontal lobe 190 xx CONTENTS 39 : Moya Moya disease (the blood flow on the right side is maintained due to a bypass operation performed 7 years before) 192 40 : Moya Moya disease 194 Chapter 8 Intracerebral Hemorrhage Kousaku Terada 197 8.1 Characteristics of the spectrum 197 8.2 Cases (41 53) 198 41 : on the day of the stroke (hemorrhage of the left thalamus) 198 42 : 1 day after the stroke (hemorrhage of the right thalamus) 200 43 : 1 day after the stroke (hemorrhage of the left thalamus) 202 44 : 2 days after the stroke (subcortical hemorrhage of the left frontal lobe) 204 45 : 2 days after the stroke (subcortical hemorrhage of the right temporal and parietal lobes) 206 46 : 3 days after the stroke (hemorrhage of the right putamen) 208 47 : 3 days after the stroke (hemorrhage of the right putamen) 210 48 : 4 days after the stroke (hemorrhage of the left putamen) 212 49 : 6 days after the stroke (hemorrhage of the left putamen) 214 50: 7 days after the stroke (hemorrhage of the right thalamus) 216 51:9 days after the stroke (hemorrhage of the right putamen) 218 52 : 11 days after the stroke (hemorrhage of the left thalamus) 220 53 : 14 days after the stroke (hemorrhage of the right putamen) 222 Chapter 9 Dementia Toshiro Fujimoto and Yasuhiko Utatsu 225 9.1 Characteristics of spectrum 225 9.1.1 Dementia of Alzheimer type (AD) 225 9.1.2 Pick s disease 226 9.1.3 Multi infarct dementia (MID) 227 9.1.4 Binswanger s disease 227 9.2 Cases (54 60) 232 54 : Dementia of Alzheimer type 232 55 : Dementia of Alzheimer type 234 56 : Dementia of Alzheimer type 236 57 1 : Probable Pick s disease (First 31P MRS study at 44 years) 238 57 2 : Probable Pick s disease (Second 31P MRS study at 44 years; 4 months after the first examination) 240 57 3 : Probable Pick s disease (Third 31P MRS study at 45 years; 10 months after the first examination) 242 57 4: Probable Pick s disease (Fourth 31P MRS study at 45 years; 2 years after the first examination) 244 57 5 : Probable Pick s disease (JH and 31P spectra) 246 58 : Multi infarct dementia 248 59 : Multi infarct dementia 250 60 : Binswanger s disease 252 Chapter 10 Other Neurological Disorders Toshiro Fujimoto and Yasuhiko Utatsu 255 10.1 Characteristics of the spectrum 255 10.1.1 Multiple sclerosis (MS) 255 10.1.2 Leukodystrophy 255 10.1.3 Huntington s disease 256 10.2 Cases (61 64) 258 61 : Multiple sclerosis 258 62 : Leukodystrophy 260 63 : Huntington s disease 262 64 : Huntington s disease 264 Chapter 11 Epilepsy Toshiro Fujimoto and Katsumi Nakamura 267 11.1 Characteristics of the spectrum 267 11.2 Cases (65 75) 272 65 : Symptomatic epilepsy 272 CONTENTS xxi 66 : Symptomatic epilepsy 274 67 : Symptomatic epilepsy 276 68 : Symptomatic epilepsy 278 69 : Symptomatic epilepsy 280 70 : Symptomatic epilepsy 282 71 : Absence (before and after corpus callosotomy) 284 72 : Symptomatic temporal lobe epilepsy. Complex partial seizures (focus on the left temporal lobe on EEG) 286 73 : Symptomatic temporal lobe epilepsy. Complex partial seizures (focus on the left temporal lobe on EEG) 288 74 : Symptomatic temporal lobe epilepsy. Complex partial seizures (focus on the left temporal lobe on EEG) 290 75 : Generalized seizures 292 Chapter 12 Psychiatric Disorders Toshiro Fujimoto 295 12.1 Characteristics of the spectrum 295 12.1.1 Schizophrenia 295 12.1.2 Depression 297 12.1.3 Mania 297 12.1.4 Alcoholism 297 12.2 Cases (76 85) 302 76 : Schizophrenia (Disorganized type) 302 77 : Schizophrenia (Disorganized type) 304 78 : Schizophrenia (Disorganized type) 306 79 : Schizophrenia (Catatonic type) 308 80 : Bipolar 1 Disorder, Most Recent Episode Depressed 310 81 : Bipolar 1 Disorder, Most Recent Episode Depressed 312 82: Bipolar 1 Disorder, Most Recent Episode Manic 314 83 : Alcohol Dependence (History of drinking : about 20 years) 316 84 : Alcohol induced mood disorder (History of drinking : about 20 years) 318 85 : Alcohol Dependence (History of drinking : about 28 years) 320 Author Index 323 Subject Index 326
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MRS of the brain and neurological disorders supervisors Akihiro Igata ...
Boca Raton [u.a.] CRC Pr. 2000
XXII, 329 S. Ill.
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n rdamedia
nc rdacarrier
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Gehirn (DE-588)4019752-9 gnd rswk-swf
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spellingShingle Igata, Akihiro
MRS of the brain and neurological disorders
Nervensystem (DE-588)4041643-4 gnd
Gehirn (DE-588)4019752-9 gnd
Krankheit (DE-588)4032844-2 gnd
NMR-Spektroskopie (DE-588)4075421-2 gnd
subject_GND (DE-588)4041643-4
(DE-588)4019752-9
(DE-588)4032844-2
(DE-588)4075421-2
title MRS of the brain and neurological disorders
title_auth MRS of the brain and neurological disorders
title_exact_search MRS of the brain and neurological disorders
title_full MRS of the brain and neurological disorders supervisors Akihiro Igata ...
title_fullStr MRS of the brain and neurological disorders supervisors Akihiro Igata ...
title_full_unstemmed MRS of the brain and neurological disorders supervisors Akihiro Igata ...
title_short MRS of the brain and neurological disorders
title_sort mrs of the brain and neurological disorders
topic Nervensystem (DE-588)4041643-4 gnd
Gehirn (DE-588)4019752-9 gnd
Krankheit (DE-588)4032844-2 gnd
NMR-Spektroskopie (DE-588)4075421-2 gnd
topic_facet Nervensystem
Gehirn
Krankheit
NMR-Spektroskopie
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