title: [Hypersignal of the intervertebral disks in T1-weighted spin-echo MRI sequences].
abstract: In magnetic resonance imaging, when there is calcification of the intervertebral disk, signals usually become weaker in all the sequences. Exceptionally, a spontaneous hypersignal is obtained in T1 weighted spin-echo sequences. We report 4 cases of spontaneous hypersignals from disks in T1 weighted spin-echo sequences. In 3 cases, calcifications were visualized with conventional radiology or computed tomography. In 1 case, there was no calcification of the disk, but its density, compared with adjacent disks, was 20 HU greater, suggesting inframacroscopic calcification.
authors.affiliation: HIA du Val-de-Grâce, Paris.
authors.forename: O
authors.initials: O
authors.lastname: Vignaux
authors.forename: J L
authors.initials: JL
authors.lastname: Sarrazin
authors.forename: Y S
authors.initials: YS
authors.lastname: Cordoliani
authors.forename: G
authors.initials: G
authors.lastname: Cosnard
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002114:Calcinosis / Q000175:diagnosis*; D005260:Female; D006801:Humans; D007403:Intervertebral Disc / Q000473:pathology*; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D013122:Spinal Diseases / Q000175:diagnosis*
vernacular_title: Disques intervertébraux en hypersignal sur les séquences d'IRM en écho de spin pondéré T1.