Optimization of pulse sequences in ultrafast magnetic resonance imaging for the diagnosis of acute abdominal pain caused by gastrointestinal disease.
Ultrafast magnetic resonance image
acute abdominal pain
gastrointestinal disease
pulse sequence
Journal
Acta radiologica open
ISSN: 2058-4601
Titre abrégé: Acta Radiol Open
Pays: England
ID NLM: 101651010
Informations de publication
Date de publication:
Aug 2020
Aug 2020
Historique:
received:
11
05
2020
accepted:
22
07
2020
entrez:
5
9
2020
pubmed:
5
9
2020
medline:
5
9
2020
Statut:
epublish
Résumé
Magnetic resonance imaging (MRI) is widely used to diagnose acute abdominal pain; however, it remains unclear which pulse sequence has priority in acute abdominal pain. To investigate the diagnostic accuracy of MRI and to assess the conspicuity of each pulse sequence for the diagnosis of acute abdominal pain due to gastrointestinal diseases. We retrospectively enrolled 60 patients with acute abdominal pain who underwent MRI for axial and coronal T2-weighted (T2W) imaging, fat-suppressed (FS)-T2W imaging, and true-fast imaging with steady-state precession (True-FISP) and axial T1-weighted (T1W) imaging and investigated the diagnosis with endoscopy, surgery, histopathology, computed tomography, and clinical follow-up as standard references. Two radiologists determined the diagnosis with MRI and rated scores of the respective sequences in assessing intraluminal, intramural, and extramural abnormality using a 5-point scale after one month. Diagnostic accuracy was calculated and scores were compared by Wilcoxon-signed rank test with Bonferroni correction. Diagnostic accuracy was 90.0% and 93.3% for readers 1 and 2, respectively. Regarding intraluminal abnormality, T2W, FS-T2W, and True-FISP imaging were superior to T1W imaging in both readers. FS-T2W imaging was superior to True-FISP in reader 2 ( T2W and FS-T2W imaging are pivotal pulse sequences and should be obtained before T1W and True-FISP imaging.
Sections du résumé
BACKGROUND
BACKGROUND
Magnetic resonance imaging (MRI) is widely used to diagnose acute abdominal pain; however, it remains unclear which pulse sequence has priority in acute abdominal pain.
PURPOSE
OBJECTIVE
To investigate the diagnostic accuracy of MRI and to assess the conspicuity of each pulse sequence for the diagnosis of acute abdominal pain due to gastrointestinal diseases.
MATERIAL AND METHODS
METHODS
We retrospectively enrolled 60 patients with acute abdominal pain who underwent MRI for axial and coronal T2-weighted (T2W) imaging, fat-suppressed (FS)-T2W imaging, and true-fast imaging with steady-state precession (True-FISP) and axial T1-weighted (T1W) imaging and investigated the diagnosis with endoscopy, surgery, histopathology, computed tomography, and clinical follow-up as standard references. Two radiologists determined the diagnosis with MRI and rated scores of the respective sequences in assessing intraluminal, intramural, and extramural abnormality using a 5-point scale after one month. Diagnostic accuracy was calculated and scores were compared by Wilcoxon-signed rank test with Bonferroni correction.
RESULTS
RESULTS
Diagnostic accuracy was 90.0% and 93.3% for readers 1 and 2, respectively. Regarding intraluminal abnormality, T2W, FS-T2W, and True-FISP imaging were superior to T1W imaging in both readers. FS-T2W imaging was superior to True-FISP in reader 2 (
CONCLUSION
CONCLUSIONS
T2W and FS-T2W imaging are pivotal pulse sequences and should be obtained before T1W and True-FISP imaging.
Identifiants
pubmed: 32884839
doi: 10.1177/2058460120949246
pii: 10.1177_2058460120949246
pmc: PMC7440738
doi:
Types de publication
Journal Article
Langues
eng
Pagination
2058460120949246Informations de copyright
© The Foundation Acta Radiologica 2020.
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