ライフサイエンスコーパス: MR spectroscopy

1 reconstruction and, as a reference standard, MR spectroscopy.

2 compared with more than 50% for uncorrected MR spectroscopy.

3 surement bias with conventional, uncorrected MR spectroscopy.

4 olution images, faster imaging, and improved MR spectroscopy.

5 tion of multiple fluorine signatures via 19F MR spectroscopy.

6 outcome group, P<5x10(-9)), as measured with MR spectroscopy.

7 ngle-voxel short-echo-time point-resolved 1H MR spectroscopy.

8 Cho) was quantified by using single-voxel 1H MR spectroscopy.

9 quantified by using single-voxel hydrogen 1 MR spectroscopy.

10 quantitatively studied noninvasively with 1H MR spectroscopy.

11 g magnetic resonance (MR) imaging and proton MR spectroscopy.

12 neuronal injury have been demonstrated with MR spectroscopy.

13 termine clinical utility of vertebral proton MR spectroscopy.

14 ctive magnetic resonance (MR) microscopy and MR spectroscopy.

15 nterior cingulate cortex were measured using MR spectroscopy.

16 been interrogated using hyperpolarized (13)C MR spectroscopy.

17 amic contrast agent-enhanced MR imaging, and MR spectroscopy.

18 simultaneous imaging of both paws with (13)C MR spectroscopy.

19 in inflamed and control paws by using (13)C MR spectroscopy.

20 ise as measured by (31)P magnetic resonance (MR) spectroscopy.

21 Proton MR spectroscopy ((1)H MRS) was used to divide MDD subjec

22 As proton MR spectroscopy ((1)H-MRS) can identify ischaemic tissue

23 resonance (MR) techniques, including proton MR spectroscopy ((1)H-MRS), although the stage at which

24 ed regions had reduced 39K concentration (by MR spectroscopy, 40.5+/-9.3% of remote; P<0.001), reduce

25 5%) of 20 benign lesions, giving proton (1H) MR spectroscopy a sensitivity of 100% (95% confidence in

26 s) and in three of 26 benign lesions, giving MR spectroscopy a sensitivity of 100% and a specificity

27 e results were confirmed by direct oxygen-17 MR spectroscopy, a gold standard for in vivo H(2)(17)O m

28 ginal diffusion-weighted magnetic resonance (MR) spectroscopy acquisition and novel modeling strategi

29 sion-weighted imaging, perfusion imaging and MR spectroscopy, additional quantitative metrics have be

30 irmed infarct-related reductions observed at MR spectroscopy, although high-energy phosphate concentr

31 ject age, subject sex, and time between (1)H MR spectroscopy and death.

32 MR spectroscopy and diffusion-based tractography of the

33 Multisection proton MR spectroscopy and DT imaging were performed in 11 pati

34 There was excellent agreement between (1)H MR spectroscopy and dual-energy CT, with a mean differen

35 Proof-of-principle in vivo MR spectroscopy and functional MRI experiments were also

36 6 years) gave informed consent and underwent MR spectroscopy and GRE MR imaging of the liver.

37 terobacteriaceae positively) correlated with MR spectroscopy and hyperammonemia-associated astrocytic

38 pH(i) was calculated using phosphorus-31 MR spectroscopy and lactate/creatine was measured using

39 MR spectroscopy and microinjections of cryoprotectants i

40 numerous different ways, most typically with MR spectroscopy and MR imaging.

41 s, 14 without risk factors) underwent proton MR spectroscopy and non-T1-weighted gradient-echo MR ima

42 Single-voxel proton MR spectroscopy and perfusion MR imaging were conducted

43 Twenty-eight patients underwent both MR spectroscopy and perfusion MR imaging.

44 tween marrow fat fraction obtained with (1)H MR spectroscopy and that obtained with dual-energy CT (r

45 ty improved to 87.5% with the addition of 1H MR spectroscopy and to 100% with the further addition of

46 This classification also predicted fMRI, MR spectroscopy and volumetry changes between groups.

47 ed 54 subjects who underwent antemortem (1)H MR spectroscopy and were clinically healthy or had AD-ty

48 s determined with proton magnetic resonance (MR) spectroscopy and ADC determined with diffusion MR im

49 Imaging studies such as magnetic resonance (MR) spectroscopy and diffusion tensor imaging have prove

50 years +/- 6.2) underwent magnetic resonance (MR) spectroscopy and MR imaging to assess hepatic trigly

51 rd deviation]) underwent magnetic resonance (MR) spectroscopy and MR imaging to assess hepatic trigly

52 Cardiac (31)P magnetic resonance (MR) spectroscopy and MR imaging, echocardiography, and c

53 hy (CSM) by using proton magnetic resonance (MR) spectroscopy and to evaluate white matter integrity

54 MR imaging, hydrogen 1 ((1)H) MR spectroscopy, and (13)C MR spectroscopy were performe

55 ed MR sequences (perfusion-weighted imaging, MR spectroscopy, and diffusion-tensor imaging) were perf

56 CSAmax, T2 from MR imaging and MR spectroscopy, and lipid fraction were consistent acro

57 sonance imaging (MRI), proton and phosphorus MR spectroscopy, and multiparametric liver MR, including

58 e combined MR protocol of DCE MR imaging, 1H MR spectroscopy, and perfusion MR imaging has high sensi

59 We applied a combination of fMRI, MR spectroscopy, and psychophysics to substantiate the l

60 psy, digital rectal examination, MR imaging, MR spectroscopy, and salvage radical prostatectomy with

61 cancer, their study by hyperpolarized (13)C MR spectroscopy, and the development of new platforms fo

62 Finally, the use of MRI, MR spectroscopy, and ultrasound as possible alternative

63 nt in vivo proton ((1)H) magnetic resonance (MR) spectroscopy, and postmortem frontal lobe tissue was

64 MR spectroscopy appears to be less specific (78%) than t

65 essive encephalopathy in children with AIDS, MR spectroscopy appears to be more sensitive and specifi

66 east lesions, independent from the technical MR spectroscopy approach.

67 /Cr values determined at single-voxel proton MR spectroscopy are more sensitive than are standard fin

68 SPECT, PET, and MR spectroscopy are the most commonly used imaging techn

69 sions of unknown histologic type, the use of MR spectroscopy as an adjunct to MR imaging would have s

70 quantify fat over the entire liver, by using MR spectroscopy as the reference standard, when T2 corre

71 H-1 MR spectroscopy at 0.5 T provides clinically useful info

72 relative to water were measured with proton MR spectroscopy at 1.5 and 7 T.

73 thy matched control subjects underwent (31)P MR spectroscopy at 7 T.

74 hted MR imaging and three-dimensional proton MR spectroscopy at spatial resolution less than a cubic

75 of phosphorus 31 ((31)P) magnetic resonance (MR) spectroscopy at 7 T improves precision in cardiac me

76 ing a first visit, the subjects underwent 1H MR spectroscopy before and after being repositioned in t

77 ety-nine men who underwent endorectal MR and MR spectroscopy before external-beam radiation therapy f

78 only on those lesions with a choline peak at MR spectroscopy, biopsy may have been spared in 23 (58%)

79 ith positive choline findings at proton (1H) MR spectroscopy, biopsy might have been avoided for 17 (

80 modal MRI (fMRI go/no-go task, volumetry and MR spectroscopy), blood (inflammatory cytokines) and sto

81 Two patients underwent MR spectroscopy but declined to undergo perfusion MR ima

82 rrhotics demonstrated significant changes on MR spectroscopy but not on fMRI or volumetry.

83 o study glycogen metabolism in vivo is (13)C MR spectroscopy, but this technology is not routinely av

84 derwent hydrogen 1((1)H) magnetic resonance (MR) spectroscopy by using a point-resolved spatially loc

85 H-1 MR spectroscopy can be used to image and noninvasively q

86 MR spectroscopy can be used to study new tumor tissue ma

87 Spatially localized H-1 MR spectroscopy can provide sufficient sensitivity and s

88 Herein, we show that magnetic resonance (MR) spectroscopy can be used to measure oocyte water exc

89 rbon 13 ((13)C)-pyruvate magnetic resonance (MR) spectroscopy, can serve as indicators of response in

90 Prior to MR spectroscopy, conventional MR imaging was performed a

91 With use of linear discriminant analysis of MR spectroscopy data alone, 92% of the frontotemporal de

92 Single-voxel MR spectroscopy data were collected from a single rectan

93 All MR spectroscopy data were postprocessed at a separate in

94 a that closely agree and correlate with (1)H MR spectroscopy data.

95 H-1 MR spectroscopy demonstrated biochemical abnormalities i

96 Conclusion MR spectroscopy-derived PDFF is superior to CAP in detec

97 Other methods, like perfusion CT, xenon CT, MR spectroscopy, diffusion weighted MRI and functional M

98 vel techniques including magnetic resonance (MR) spectroscopy, diffusion weighted MR, and MR elastogr

99 = 2170) utilizing proton magnetic resonance (MR) spectroscopy, dual-energy x-ray absorptiometry, and

100 nd pH as detected by 31P magnetic resonance (MR) spectroscopy during isometric exercise and recovery.

101 rametric MR imaging (T2-weighted MR imaging, MR spectroscopy, dynamic contrast-enhanced MR imaging) o

102 ith quantitative MR imaging and single-voxel MR spectroscopy, each within a single breath hold.

103 iffusion-weighted MR imaging was normal, and MR spectroscopy excluded acute demyelination or tissue n

104 (31)P-MR spectroscopy experiments showed that during inotropic

105 measures of agreement between MR imaging and MR spectroscopy fat fraction measurements, to determine

106 ansverse relaxation time constant; MRI-T2 ), MR spectroscopy (fat fraction and (1) H2 O T2 ), and 6-m

107 Outcome on the basis of proton MR spectroscopy findings combined with clinical data and

108 MR spectroscopy findings were defined as positive if the

109 MR spectroscopy findings were then compared with histolo

110 nalysis-with admission clinical data, proton MR spectroscopy findings, and MR imaging score (three-po

111 MR signal intensity abnormalities, ADCs, 1H MR spectroscopy findings, and relaxation times were comp

112 d when combined with prior longitudinal (1)H MR spectroscopy findings, indicate that these measuremen

113 excellent correlation between MR imaging and MR spectroscopy for all reconstruction combinations.

114 -voxel MR spectroscopy or spatially resolved MR spectroscopy for differentiation between benign and m

115 s were reviewed in 78 patients who underwent MR spectroscopy for evaluation of a focal brain mass sus

116 g, dynamic contrast-enhanced MR imaging, and MR spectroscopy for peripheral zone tumors was examined

117 proton (hydrogen 1 [1H]) magnetic resonance (MR) spectroscopy for diagnosing malignant enhancing nonm

118 Proton (1H) MR spectroscopy had 100% sensitivity and 85% specificity

119 In two (3%) patients, MR spectroscopy had a potential negative influence.

120 resent a summary of brain disorders in which MR spectroscopy has an impact on patient management, tog

121 The clinical usefulness of (1)H MR spectroscopy has been established for brain neoplasms

122 MR spectroscopy has demonstrated the first example of in

123 In vivo 3-T MR spectroscopy has sufficient spatial resolution and ch

124 oton (hydrogen 1 [(1)H]) magnetic resonance (MR) spectroscopy has evolved from a research tool into a

125 Magnetic resonance (MR) spectroscopy has shown promise in the evaluation of

126 MRI and localized MR spectroscopy have been demonstrated as noninvasive me

127 n-tensor imaging, functional MR imaging, and MR spectroscopy have yielded findings that provide tangi

128 Findings at proton MR spectroscopy helped predict long-term neurologic outc

129 MRI and MR spectroscopy imaging were consistent with a hypomyeli

130 onance imaging and liver fat content by (1)H-MR spectroscopy in 449 individuals at risk for type 2 di

131 Proton MR spectroscopy in a clinical MR imager was used to asce

132 MR spectroscopy in eight (16%) patients with positive fi

133 The article documents the impact of (1)H MR spectroscopy in the clinical evaluation of disorders

134 ge part of the region of interest studied at MR spectroscopy included the basal ganglia.

135 1H MR spectroscopy is feasible for repeatable quantificatio

136 Conclusion 7-T cardiac (31)P MR spectroscopy is feasible in patients with DCM and giv

137 ricular balloon, energetics by (31)P nuclear MR spectroscopy, lactate and creatine kinase release spe

138 In addition, the MR spectroscopy marker of neuronal viability, N-acetylas

139 tor-gated and gradient-echo shimmed PRESS 1H MR spectroscopy may allow quantification of liver metabo

140 Proton MR spectroscopy may be a more sensitive diagnostic techn

141 f pyruvate to lactate as detected with (13)C-MR spectroscopy may be indicative of the presence of inf

142 In summary, MR imaging and MR spectroscopy may be more sensitive than sextant biops

143 The growing list of disorders for which (1)H MR spectroscopy may contribute to patient management ext

144 MR spectroscopy may play a beneficial role in the manage

145 s suggest that hyperpolarized (13)C-pyruvate MR spectroscopy may serve as an early indicator of respo

146 uisition, or qualitative versus quantitative MR spectroscopy measurements were identified.

147 ial energy metabolism was tested using (31)P MR spectroscopy, measuring PCr/ATP ratios in both groups

148 Antemortem (1)H MR spectroscopy metabolite changes correlated with AD-ty

149 The study findings validated (1)H MR spectroscopy metabolite measurements against the neur

150 y investigated the associations between (1)H MR spectroscopy metabolite measurements and Braak neurof

151 ecommendations to expedite the use of robust MR spectroscopy methodology in the clinical setting, inc

152 d clinical acceptance and standardization of MR spectroscopy methodology, guidelines are provided for

153 f tumor pH by pH-sensitive PET radiotracers, MR spectroscopy, MRI, and optical imaging.

154 t these hypotheses, hyperpolarized (13)C-DHA MR spectroscopy (MRS) and (18)F-FDG PET were applied as

155 MR spectroscopy (MRS) changes of increased Glutamate/glu

156 terature presenting the results of series of MR spectroscopy (MRS) examinations in the course of BBE.

157 uoroethyl)-l-tyrosine ((18)F-FET) and proton MR spectroscopy (MRS) imaging of cell turnover measured

158 this, single volume localized in vivo proton MR spectroscopy (MRS) studies of the left and right hipp

159 structural magnetic resonance imaging (MRI), MR spectroscopy (MRS), and diffusion weighted imaging (D

160 s, and the contribution of cerebral CT, MRI, MR spectroscopy (MRS), positron emission tomography (PET

161 scuss the findings in perfusion MR (PWI) and MR spectroscopy (MRS).

162 -fraction (PDFF), as well as by conventional MR spectroscopy (MRS).

163 amic contrast-enhanced imaging (n = 51), and MR spectroscopy (n = 91).

164 es were analyzed for regional 39K content by MR spectroscopy (n=9), K+ and Na+ concentrations by atom

165 gated by using high-spectral-resolution (1)H MR spectroscopy of brain extracts.

166 High resolution MR spectroscopy of brain metabolites revealed significan

167 Longitudinal T2-weighted MR imaging, dynamic MR spectroscopy of hyperpolarized pyruvate, and (18)F-FD

168 al features of MELAS syndrome in CT, MRI and MR spectroscopy of the brain and differential diagnosis.

169 s gave written informed consent, proton (1H) MR spectroscopy of the breast was performed in suspiciou

170 I measures, obtained using single-voxel (1)H-MR spectroscopy of the cervical cord and diffusion-based

171 viation, 43 years +/- 13) underwent 3-T (1)H MR spectroscopy of the L2 vertebra by using a point-reso

172 ent 3.0-T single-voxel point-resolved proton MR spectroscopy of the liver (segment VII) to calculate

173 ubjects underwent proton magnetic resonance (MR) spectroscopy of the second lumbar vertebra to evalua

174 ong echo time (272 msec) proton (hydrogen 1) MR spectroscopy on a 4 x 2 x 2-cm voxel in the basal gan

175 ive studies are needed to test the effect of MR spectroscopy on clinical practice and to measure cost

176 greatly enhanced sensitivity to multinuclear MR spectroscopy, opening up a new tool with which to non

177 3.0 T applying one-dimensional single-voxel MR spectroscopy or spatially resolved MR spectroscopy fo

178 Single-voxel quantitative (1)H MR spectroscopy performed in patients with untreated ped

179 ing, functional MR imaging, MR elastography, MR spectroscopy, perfusion-weighted imaging, MR imaging

180 cluded 14 patients who underwent in vivo 3-T MR spectroscopy prior to stereotactic biopsy.

181 The combined MR imaging-MR spectroscopy protocol was performed in 50 patients af

182 g, dynamic contrast-enhanced MR imaging, and MR spectroscopy provided significant independent and add

183 The addition of 1H MR spectroscopy resulted in higher sensitivity, specific

184 lassified as recurrent tumor on the basis of MR spectroscopy results, was diagnosed as predominantly

185 the ipsilateral corticospinal tract, whereas MR spectroscopy showed absence of normal brain metabolit

186 MR imaging and MR spectroscopy showed estimated sensitivities of 68% an

187 Similarly, 23Na MR spectroscopy showed that [Na+] was higher in nonviabl

188 Noninvasive (31)P MR spectroscopy showed that the nucleoside triphosphate/

189 Breast MR spectroscopy shows variable sensitivity and high spec

190 etization transfer, T2 decay-curve analysis, MR spectroscopy, spinal cord imaging, diffusion imaging,

191 Based on previous magnetic resonance (MR) spectroscopy studies demonstrating relationships bet

192 Quantitative 1H MR spectroscopy, T1, and T2 data were acquired on one 10

193 ine, "functional" imaging techniques such as MR spectroscopy, T1rho calculation, T2 relaxation time m

194 th percentile, 1.2%; 75th percentile, 4.7%]; MR spectroscopy T2, CV = 3.9% [25th percentile, 1.5%; 75

195 Particularly helpful are the MRI and MR spectroscopy techniques.

196 s were compared with results of liver proton MR spectroscopy, the reference standard.

197 strated the feasibility of performing proton MR spectroscopy to assess mobile fetal structures.

198 MR imaging, perfusion MR imaging, and proton MR spectroscopy to classify intraaxial masses as low-gra

199 We used (31)P MR spectroscopy to determine the relationship between my

200 aging and three-dimensional 3-T voxel proton MR spectroscopy to measure absolute rostral and caudal A

201 s erythematosus (SLE) were examined with H-1 MR spectroscopy to measure N-acetylaspartate (NAA), crea

202 -echo MR imaging, multi-echo MR imaging, and MR spectroscopy to quantify fatty degeneration of bilate

203 suggest that the addition of quantitative 1H MR spectroscopy to the breast MR imaging examination may

204 ut also for magnetic resonance (MR) imaging, MR spectroscopy, ultrasonography, and the emerging field

205 because of unfavorable lesion morphology for MR spectroscopy voxel placement.

206 y receiver operating characteristic curve of MR spectroscopy was 0.88, and the Q* index was 0.81.

207 ve findings with subsequently proved tumors, MR spectroscopy was classified as having a potential neg

208 dically or followed up for interval changes, MR spectroscopy was classified as having a potential pos

209 The accuracy of T2-corrected MR spectroscopy was evaluated in eight lipid phantoms do

210 Proton nuclear MR spectroscopy was first performed to identify lipiodol

211 Single-voxel localized proton MR spectroscopy was performed at 0.5 T in 18 patients (a

212 In a prospective study, (31)P MR spectroscopy was performed at 3 T and 7 T in 25 patie

213 gle-voxel point-resolved proton (hydrogen 1) MR spectroscopy was performed from a 2-cm(3) voxel cente

214 MR spectroscopy was performed in 19 subjects preoperativ

215 ained for this HIPAA-compliant study, breast MR spectroscopy was performed in patients with suspiciou

216 mulated-echo acquisition mode, or STEAM, H-1 MR spectroscopy was performed to determine the concentra

217 gravidas at 38 and 39 weeks gestation, fetal MR spectroscopy was performed with a breath-hold techniq

218 Proton MR spectroscopy was successfully incorporated into breas

219 Single-voxel T2-corrected MR spectroscopy was used to measure fat fraction and ser

220 (31)P magnetic resonance (MR) spectroscopy was used to measure cardiac phosphocrea

221 Proton (hydrogen 1) magnetic resonance (MR) spectroscopy was used to study model and porcine bil

222 al-enhanced [DCE] MR imaging, and hydrogen 1 MR spectroscopy) was performed with a 3.0-T wholebody MR

223 r-referenced localized phosphorus and proton MR spectroscopy were combined in a single protocol to no

224 Fat fractions measured with MR imaging and MR spectroscopy were compared statistically to determine

225 digital rectal examination, MR imaging, and MR spectroscopy were determined by using a prostate sext

226 hydrogen 1 ((1)H) MR spectroscopy, and (13)C MR spectroscopy were performed at 1.5 T in 10 subjects,

227 MR imaging and H-1 MR spectroscopy were performed in 14 patients with front

228 ial-enhanced MR imaging and single-voxel H-1 MR spectroscopy were performed in 17 patients (age range

229 s (T2*) as well as spectral parameters using MR Spectroscopy were performed in a 3 T MR scanner durin

230 rn blot), HEP levels, and CK kinetics ((31)P MR spectroscopy) were measured under basal conditions.

231 rwent both brain MR imaging and single-voxel MR spectroscopy with a long-echo-time point-resolved tec

232 d diffusion-weighted cerebral MR imaging, 1H MR spectroscopy with absolute quantification, and T1 and

233 model of severe TBI and magnetic resonance (MR) spectroscopy with infusion of (13)C-labeled glucose,

234 FF) obtained with proton magnetic resonance (MR) spectroscopy with results of liver biopsy in a cohor

235 ith unknown histologic features, proton (1H) MR spectroscopy would have significantly (P<.01) increas

236 MR spectroscopy yielded a total creatine value of 36.2 m