Document Detail


Ligaments and tendons of the ankle. Evaluation with low-field (0.2 T) MR imaging.
MedLine Citation:
PMID:  10335969     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
PURPOSE: To investigate the value of MR imaging using a low-field imaging unit (0.2 T) for the evaluation of ligaments and tendons of the ankle. MATERIAL AND METHODS: Twelve ankle specimens were studied using low-field MR imaging (0.2 T). The Achilles tendon, the tibialis posterior tendon, and the lateral collateral ligaments were evaluated for the presence of degenerative changes and partial and complete tears. Visibility and overall image quality were analyzed by qualitative evaluation. RESULTS: Low-field MR images of the 24 tendons were interpreted as normal in 11 cases, showing degenerative changes in 9 cases and a partial tear in 1 case. Visualization was regarded as not sufficient for a diagnosis in 3 cases. Of the 36 ligaments, 14 were regarded as normal while degenerative changes were seen in 5 cases and a tear in 2 cases. In 13 cases, no diagnosis could be established, and in 2 cases only a probable diagnosis was established. The best overall quality was obtained with the use of T1 spin-echo (680/20/4) and T2 multi-echo (3000/40/1) images. CONCLUSION: Optimized protocols for examination of the ankle using low-field MR imaging may allow evaluation of the Achilles and tibialis posterior tendons, but these protocols may not be as useful for diagnosing ligamentous changes.
Authors:
T Rand; J M Ahn; C Muhle; M Garcia; D Resnick
Related Documents :
2541299 - Mr evaluation of giant cell tumors of the tendon sheath.
12525939 - Plantar calcaneal enthesophytes: new observations regarding sites of origin based on ra...
25186399 - A study of the short- to long-phantom dose ratios for ct scanning without table transla...
12077699 - Considerations in metatarsalgia and midfoot pain: an mr imaging perspective.
16340599 - Thermal and tactile sensory deficits and allodynia in a nerve-injured patient: a multim...
12091669 - Tennis leg: clinical us study of 141 patients and anatomic investigation of four cadave...
138679 - Structure and function of the two heads of the myosin molecule. iii. cooperativity of t...
8817029 - Visualization of inner ear structures by three-dimensional high-resolution magnetic res...
6646069 - Accurate t2 nmr images.
Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Acta radiologica (Stockholm, Sweden : 1987)     Volume:  40     ISSN:  0284-1851     ISO Abbreviation:  Acta Radiol     Publication Date:  1999 May 
Date Detail:
Created Date:  1999-06-03     Completed Date:  1999-06-03     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8706123     Medline TA:  Acta Radiol     Country:  DENMARK    
Other Details:
Languages:  eng     Pagination:  303-8     Citation Subset:  IM    
Affiliation:
Department of Radiology, Veterans Affairs Medical Center, San Diego, CA, USA.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Achilles Tendon / anatomy & histology
Aged
Aged, 80 and over
Ankle Joint / anatomy & histology*
Female
Humans
Ligaments, Articular / anatomy & histology*
Magnetic Resonance Imaging*
Male
Middle Aged
Tendons / anatomy & histology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Clinical impact of MR arthrography of the shoulder.
Next Document:  Sympathotropic drugs and the distribution of 99mTc-hydroxymethylene diphosphonate. Experimental stud...