Titre
Extensor carpi ulnaris (ECU) subsheath: Normal MRI appearance and findings in athletic injuries : 40
Type
poster de conférence/colloque
Institution
UNIL/CHUV/Unisanté + institutions partenaires
Série
Swiss Medical Forum = Forum Médical Suisse
Auteur(s)
Becce, F.
Auteure/Auteur
Jeantroux, J.
Auteure/Auteur
Theumann, N.
Auteure/Auteur
Guerini, H.
Auteure/Auteur
Montalvan, B.
Auteure/Auteur
Le Viet, D.
Auteure/Auteur
Drapé, J.L.
Auteure/Auteur
Liens vers les personnes
Liens vers les unités
Titre du livre ou conférence/colloque
Swiss Radiological Congress 2010, Schweizerische Gesellschaft für Radiologie, Schweizerische Gesellschaft für Nuklearmedizin, Schweizerische Vereinigung der Fachleute für medizinisch technische Radiologie
Adresse
Lugano, Switzerland, June 3-5, 2010
ISBN
1424-4985
Statut éditorial
Publié
Date de publication
2010
Volume
10
Première page
23
Langue
anglais
Résumé
Purpose: First, to report ECU subsheath's normal MRI appearance
and the findings in athletic injuries. Second, to determine the best MRI
sequence for diagnosis.
Methods and materials: Sixteen patients (13 males, 3 females, mean
age 30.3 years) with ECU subsheath's athletic injuries sustained
between January 2003 and June 2009 were retrospectively reviewed.
Wrist MRI studies were performed on 1.5-T units and consisted of at
least transverse T1 and STIR sequences in pronation, and FS Gd T1
in pronation and supination. Two radiologists assessed the following
items, in consensus: injury type (A to C according to Inoue), ECU
tendon stability, and associated lesions (ulnar head oedema, extensor
retinaculum injury, ECU tendinosis and tenosynovitis). Then, each
reader independently rated the sequences' diagnostic value:
0 = questionable, 1 = suggestive, 2 = certain. Follow-up studies were
present in 8 patients. ECU subsheath's normal visibility (medial, central
and lateral parts) was retrospectively evaluated in 30 consecutive
control MRI studies.
Results: FS Gd T1 sequences in supination (1.63) and pronation (1.59)
were the most valuable for diagnosis, compared to STIR (1.22) and T1
(1). The study group included 9 type A, 1 type B and 6 type C injuries.
There were trends towards diminution in pouches' size, signal intensity
and enhancement in follow-up studies, along with tendon stabilization
within the ulnar groove. In control studies, ECU subsheath's visibility in
medial, central and lateral parts were noted in 66.7-80%, 63.3-80%
and 30-50% respectively.
Conclusion: ECU subsheath's athletic injuries are visible on 1.5-T MRI
studies. FS Gd T1 sequences in supination and pronation are the most
valuable.
and the findings in athletic injuries. Second, to determine the best MRI
sequence for diagnosis.
Methods and materials: Sixteen patients (13 males, 3 females, mean
age 30.3 years) with ECU subsheath's athletic injuries sustained
between January 2003 and June 2009 were retrospectively reviewed.
Wrist MRI studies were performed on 1.5-T units and consisted of at
least transverse T1 and STIR sequences in pronation, and FS Gd T1
in pronation and supination. Two radiologists assessed the following
items, in consensus: injury type (A to C according to Inoue), ECU
tendon stability, and associated lesions (ulnar head oedema, extensor
retinaculum injury, ECU tendinosis and tenosynovitis). Then, each
reader independently rated the sequences' diagnostic value:
0 = questionable, 1 = suggestive, 2 = certain. Follow-up studies were
present in 8 patients. ECU subsheath's normal visibility (medial, central
and lateral parts) was retrospectively evaluated in 30 consecutive
control MRI studies.
Results: FS Gd T1 sequences in supination (1.63) and pronation (1.59)
were the most valuable for diagnosis, compared to STIR (1.22) and T1
(1). The study group included 9 type A, 1 type B and 6 type C injuries.
There were trends towards diminution in pouches' size, signal intensity
and enhancement in follow-up studies, along with tendon stabilization
within the ulnar groove. In control studies, ECU subsheath's visibility in
medial, central and lateral parts were noted in 66.7-80%, 63.3-80%
and 30-50% respectively.
Conclusion: ECU subsheath's athletic injuries are visible on 1.5-T MRI
studies. FS Gd T1 sequences in supination and pronation are the most
valuable.
PID Serval
serval:BIB_08CD7DCE5D91
Date de création
2010-06-29T14:05:38.838Z
Date de création dans IRIS
2025-05-20T18:02:32Z