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eISSN: 2719-3209
ISSN: 0023-2157
Klinika Oczna / Acta Ophthalmologica Polonica
Bieżący numer Archiwum Filmy Artykuły w druku O czasopiśmie Suplementy Rada naukowa Recenzenci Bazy indeksacyjne Prenumerata Kontakt Zasady publikacji prac Opłaty publikacyjne Standardy etyczne i procedury
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Zgłaszanie i recenzowanie prac online
SCImago Journal & Country Rank
1/2011
vol. 113
 
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Opis przypadku

Zastosowanie dynamicznego rezonansu magnetycznego w diagnostyce zaburzeń ruchomości gałek ocznych

Piotr Loba
1
,
Iwona Laudanska-Olszewska
1
,
Agata Majos
2
,
Ludomir Stefańczyk
2
,
Anna Broniarczyk-Loba
3

  1. Department of Ophthalmology, Medical University of Łódź, Poland
  2. Department of Radiology and Diagnostic Imaging, Medical University of Łódź, Poland
  3. Department of Binocular Vision Pathophysiology and Strabismus, Medical University of Łódź, Poland
Klinika Oczna 2011, 113 (1): 52-55
Data publikacji online: 2011/04/17
Pełna treść artykułu Pobierz cytowanie
 
Wstęp
Dynamic Magnetic Resonance (dMRI) of the extraocular muscles is based on performing a number of short sequences, while the patient fixates consecutive points placed in different positions of gaze. Purpose: To check the relation between dMRI findings and the results of clinical examination in patients with various types of strabismus.

Materiał i metody
We have selected three patients with lateral rectus palsy, superior rectus palsy and inferior rectus restriction from the group, in which we have performed dMRI. We have taken measures of the affected muscles shape, sectional area and volume. The results were related with the clinical examination.

Wyniki
The measurements obtained with use of dMRI reflect the actual state of the affected muscle as seen on the Hess screen. The limitation of the muscles action is represented by a lack of increase in the sectional area and volume in respective gaze intervals. The restriction of the muscle affects its shape by pulling it towards the place of entrapment.

Wnioski
Data acquired by means of dMRI correspond to the clinical findings and allow a quantitative analysis of the degree of muscle weakness. Defining the extent of the morphological changes in extraocular muscles, related with long-lasting paralysis, let us make an informed decision regarding further treatment.



Introduction
Dynamic Magnetic Resonance (dMRI) of the extraocular muscles is based on performing a number of short sequences, while the patient fixates consecutive points placed in different positions of gaze. Purpose: To check the relation between dMRI findings and the results of clinical examination in patients with various types of strabismus.

Material and methods
We have selected three patients with lateral rectus palsy, superior rectus palsy and inferior rectus restriction from the group, in which we have performed dMRI. We have taken measures of the affected muscles shape, sectional area and volume. The results were related with the clinical examination.

Results
The measurements obtained with use of dMRI reflect the actual state of the affected muscle as seen on the Hess screen. The limitation of the muscles action is represented by a lack of increase in the sectional area and volume in respective gaze intervals. The restriction of the muscle affects its shape by pulling it towards the place of entrapment.

Conclusions
Data acquired by means of dMRI correspond to the clinical findings and allow a quantitative analysis of the degree of muscle weakness. Defining the extent of the morphological changes in extraocular muscles, related with long-lasting paralysis, let us make an informed decision regarding further treatment.

słowa kluczowe:

dynamiczny rezonans magnetyczny, ruchomość gałek ocznych, mięśnie gałkoruchowe

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