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European Radiology
Published in: European Radiology 12/2008

01-12-2008 | Neuro

Signal intensity of motor and sensory cortices on T2-weighted and FLAIR images: intraindividual comparison of 1.5T and 3T MRI

Authors: Koji Kamada, Shingo Kakeda, Norihiro Ohnari, Junji Moriya, Toru Sato, Yukunori Korogi

Published in: European Radiology | Issue 12/2008

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Abstract

We compared the signal intensity of motor and sensory cortices on T2-weighted and FLAIR images obtained at 3T and 1.5T. MR images of 101 consecutive neurologically normal patients who underwent both 1.5T and 3T MRI were retrospectively evaluated. The signal intensities of motor and sensory cortices were analyzed both visually and quantitatively in comparison with superior frontal cortex. On T2-weighted images, decreased signal intensity of the motor cortex was seen in 6 (32%) of 19 patients aged 61–70 years and 14 (48%) of 29 at 71 years and older at 3T, compared with only 1 (5%) and 2 (7%) at 1.5T, respectively. On FLAIR images, the decreased signal intensity in the motor cortex was also more frequently seen at 3T than at 1.5T. The mean CNRs of motor and sensory cortices were significantly higher at 3T than at 1.5T on both T2-weighted and FLAIR images. The decreased signal intensity in the motor cortex was frequently seen at 3T compared with 1.5T. Knowledge of the finding at 3T can help the recognition of abnormalities of the motor cortex caused by various pathologic conditions.
Literature
1.
Hirai T, Korogi Y, Sakamoto Y et al (1996) T2 shortening in the motor cortex: effect of aging and cerebrovascular disease. Radiology 199:799–803PubMed
2.
Karaarslan E, Arslan A (2003) Perilorandic cortex of the normal brain: low signal intensity on Turbo FLAIR MR images. Radiology 227:538–541PubMedCrossRef
3.
Korogi Y, Hirai T, Komohara Y et al (1997) T2 shortening in the visual cortex: effect of aging and cerebrovascular disease. AJNR Am J Neuroradiol 18:711–714PubMed
4.
Hirai T, Korogi Y, Yoshizumi K et al (2000) Limbic lobe of the human brain: evaluation with Turbo Fluid-attenuated inversion-recovery MR imaging. Radiology 215:470–475PubMed
5.
Yoshiura T, Higano S, Rubio A et al (2000) Heschl and superior temporal gyri: low signal intensity of the cortex on T2-weighted MR images of the normal brain. Radiology 214:217–221PubMed
6.
Georgiades CS, Itoh R, Golay X et al (2001) MR imaging of the human brain at 1.5T: regional variations in transverse relaxation rates in the cerebral cortex. AJNR Am J Neuroradiol 22:1732–1737PubMed
7.
Alexander JA, Sheppard S, Davis PC et al (1996) Adult cerebrovascular disease: role of modified rapid fluid-attenuated inversion-recovery sequences. AJNR Am J Neuroradiol 17:1507–1513PubMed
8.
Oba H, Araki T, Ohtomo K et al (1993) Amyotrophic lateral sclerosis: T2 shortening in motor cortex at MR imaging. Radiology 189:843–846PubMed
9.
Imon Y, Yamaguchi S, Yamamura Y et al (1995) Low intensity areas observed on T2-weighted magnetic resonance imaging of the cerebral cortex in various neurological disease. J Neurol Sci 21:27–32CrossRef
10.
Russo C, Smoker WRK, Kubal W (1997) Cortical and subcortical T2 shortening in multiple sclerosis. AJNR Am J Neuroradiol 18:124–126PubMed
11.
Miwa H, Kajimoto Y, Nakanishi I et al (2003) T2-low signal intensity in the cortex in multiple system atrophy. J Neurol Sci 211:85–88PubMed
12.
Trattnig S, Pinker K, Ba-Ssalamah A, Nobauer-Huhmann IM (2006) The optimal use of contrast agents at high field MRI. Eur Radiol 16:1280–1287PubMedCrossRef
13.
Schwindt W, Kugel H, Bachmann R et al (2003) Magnetic resonance imaging protocols for examination of the neurocranium at 3T. Eur Radiol 13:2170–2179PubMedCrossRef
14.
Morakkabati-Spitz N, Gieseke J, Kuhl C et al (2006) MRI of the pelvis at 3T: very high spatial resolution with sensitivity encoding and flip-angle sweep technique in clinically acceptable scan time. Eur Radiol 16:634–641PubMedCrossRef
15.
Lemke AJ, Alai-Omid M, Hengst SA, Kazi I, Felix R (2006) Eye imaging with a 3.0-T MRI using a surface coil - a study on volunteers and initial patients with uveal melanoma. Eur Radiol 16:1084–1086PubMedCrossRef
16.
Bachmann R, Reilmann R, Schwindt W, Kugel H, Heindel W, Kramer S (2006) FLAIR imaging for multiple sclerosis: a comparative MR study at 1.5 and 3.0 Tesla. Eur Radiol 16:915–921PubMedCrossRef
17.
Stehling C, Vieth V, Bachmann R et al (2007) High-resolution magnetic resonance imaging of the temporomandibular joint: image quality at 1.5 and 3.0 Tesla in volunteers. Invest Radiol 42:428–434PubMedCrossRef
18.
Schenck JF, Zimmerman EA (2004) High-field magnetic resonance imaging of brain iron: birth of a biomarker? NMR Biomed 17:433–445PubMedCrossRef
19.
Bizzi A, Brooks RA, Brunetti A et al (1990) Role of iron and ferritin in MR imaging of the brain: a study in primates, at different field strengths. Radiology 177:59–65PubMed
20.
Spatz H (1922) Uber den eisennachweis im gehirn, besonders in zentren des extrapyramidal-motorischen systems. Z Ges Neurol Psychiatry 77:261–390CrossRef
21.
Hallgren B, Sourander P (1958) The effect of age on the non-haemin iron in the human brain. J Neurochem 3:41–51PubMedCrossRef
22.
Norbash AM, Glover GH, Enzmann DR (1992) Intracerebral lesion contrast with spin-echo and fast spin-echo pulse sequence. Radiology 185:661–665PubMed
23.
Welker KM, Tsuruda JS, Hadley JR et al (2001) Radio-frequency coil selection for MR imaging of the brain and skull base. Radiology 221:11–25PubMedCrossRef
24.
Stahl R, Dietrich O, Teipel SJ, Hampel H, Reiser MF, Schoenberg SO (2007) White matter damage in Alzheimer disease and mild cognitive impairment: assessment with diffusion-tensor MR imaging and parallel imaging techniques. Radiology 243:483–492PubMedCrossRef
25.
Sze G, Kawamura Y, Negishi C et al (1993) Fast spin-echo MR imaging of the cervical spine: influence of echo train length and echo spacing on image contrast and quality. AJNR Am J Neuroradiol 14:1203–1213PubMed
Metadata
Title
Signal intensity of motor and sensory cortices on T2-weighted and FLAIR images: intraindividual comparison of 1.5T and 3T MRI
Authors
Koji Kamada
Shingo Kakeda
Norihiro Ohnari
Junji Moriya
Toru Sato
Yukunori Korogi
Publication date
01-12-2008
Publisher
Springer-Verlag
Published in
European Radiology / Issue 12/2008
Print ISSN: 0938-7994
Electronic ISSN: 1432-1084
DOI
https://doi.org/10.1007/s00330-008-1069-8

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