Changes in shape and signal intensity of high intensity zone in lumbar intervertebral discs on magnetic resonance images : a longitudinal study
OBJECTIVE: To investigate changes over time in the shape and signal intensity of high intensity zone (HIZ) in the lumbar intervertebral discs on magnetic resonance images in patients with low back pain.
METHODS: The imaging data were collected from 27 patients with low back pain, who underwent lumbar magnetic resonance (MR) imaging examinations that identified HIZ lesions and received follow-up MR examinations at least 1.5 years later over the period from January 2009 to January 2017. The initial and follow-up MR T2WI images of the patients were read by two experienced radiologists to categorize the changes in the shape of the HIZ lesions into enlarged, unchanged, shrunk, and disappeared. The volume and signal/cerebrospinal fluid signal intensity (T2/CSF) ratio of the HIZ were measured on sagittal MR images using ImageJ software.
RESULTS: Of the 43 HIZ lesions found in the initial examinations, 22 (51.2%) remained unchanged in the follow-up examinations, 10 (21.3%) were enlarged, 9 (20.9%) shrank, and 2 (23.3%) disappeared. The follow-up examinations revealed 4 new HIZ lesions in the intervertebral discs. The volumes of these lesions did not vary significantly in the follow-up examinations (P=0.653), but the T2/CSF ratio was significantly higher in the follow-up than in the initial examinations (P=0.043).
CONCLUSIONS: After observation for an average of 3 years and 3 months, most of the HIZ lesions in the lumbar intervertebral discs of the patients with low back pain remained stable in shape, but their signal intensity on MR images increased.
Medienart: |
E-Artikel |
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Erscheinungsjahr: |
2018 |
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Erschienen: |
2018 |
Enthalten in: |
Zur Gesamtaufnahme - volume:38 |
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Enthalten in: |
Nan fang yi ke da xue xue bao = Journal of Southern Medical University - 38(2018), 9 vom: 30. Aug., Seite 1135-1138 |
Sprache: |
Chinesisch |
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Beteiligte Personen: |
Cui, Yunneng [VerfasserIn] |
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Links: |
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Themen: |
High intensity zone |
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Anmerkungen: |
Date Completed 19.02.2019 Date Revised 26.02.2020 published: Print Citation Status MEDLINE |
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doi: |
10.12122/j.issn.1673-4254.2018.09.19 |
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funding: |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
NLM290107431 |
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520 | |a OBJECTIVE: To investigate changes over time in the shape and signal intensity of high intensity zone (HIZ) in the lumbar intervertebral discs on magnetic resonance images in patients with low back pain | ||
520 | |a METHODS: The imaging data were collected from 27 patients with low back pain, who underwent lumbar magnetic resonance (MR) imaging examinations that identified HIZ lesions and received follow-up MR examinations at least 1.5 years later over the period from January 2009 to January 2017. The initial and follow-up MR T2WI images of the patients were read by two experienced radiologists to categorize the changes in the shape of the HIZ lesions into enlarged, unchanged, shrunk, and disappeared. The volume and signal/cerebrospinal fluid signal intensity (T2/CSF) ratio of the HIZ were measured on sagittal MR images using ImageJ software | ||
520 | |a RESULTS: Of the 43 HIZ lesions found in the initial examinations, 22 (51.2%) remained unchanged in the follow-up examinations, 10 (21.3%) were enlarged, 9 (20.9%) shrank, and 2 (23.3%) disappeared. The follow-up examinations revealed 4 new HIZ lesions in the intervertebral discs. The volumes of these lesions did not vary significantly in the follow-up examinations (P=0.653), but the T2/CSF ratio was significantly higher in the follow-up than in the initial examinations (P=0.043) | ||
520 | |a CONCLUSIONS: After observation for an average of 3 years and 3 months, most of the HIZ lesions in the lumbar intervertebral discs of the patients with low back pain remained stable in shape, but their signal intensity on MR images increased | ||
650 | 4 | |a Journal Article | |
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650 | 4 | |a intervertebral disc degeneration | |
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700 | 1 | |a Fang, Xiaochao |e verfasserin |4 aut | |
700 | 1 | |a Zhao, Yinxia |e verfasserin |4 aut | |
700 | 1 | |a Zhang, Xiaodong |e verfasserin |4 aut | |
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