Association of Superior Oblique Muscle Volumes with the Presence or Absence of the Trochlear Nerve on High-Resolution MR Imaging in Congenital Superior Oblique Palsy
نویسندگان
چکیده
منابع مشابه
Association of superior oblique muscle volumes with the presence or absence of the trochlear nerve on high-resolution MR imaging in congenital superior oblique palsy.
BACKGROUND AND PURPOSE Congenital superior oblique palsy is known to relate to trochlear nerve absence and a variable degree of superior oblique muscle hypoplasia. The purpose of this study was to determine whether superior oblique muscle volume predicts trochlear nerve absence in congenital superior oblique palsy. MATERIALS AND METHODS A retrospective study of high-resolution MR imaging to e...
متن کاملInferior oblique muscle anteriorization in congenital superior oblique palsy.
BACKGROUND Inferior oblique muscle overaction of variable amounts is usually present with congenital superior oblique palsy. Inferior oblique muscle anteriorization has been described as a suitable surgical procedure in this entity. The aim of this study was to investigate the effect of inferior oblique muscle anteriorization in patients with congenital superior oblique palsy on vertical, torsi...
متن کاملSurgical Outcomes of Inferior Oblique Myectomy in Unilateral Congenital Superior Oblique Palsy with or without Trochlear Nerve
OBJECTIVES To compare the surgical outcomes of inferior oblique (IO) myectomy in congenital superior oblique palsy (SOP) according to the presence of the trochlear nerve identified with high-resolution MRI. DATA EXTRACTION Forty-one congenital SOP patients without a trochlear nerve (absent group) and 23 patients with a trochlear nerve (present group) who underwent IO myectomy as the primary s...
متن کاملOcular Torsion According to Trochlear Nerve Absence in Unilateral Superior Oblique Palsy.
Purpose To investigate the relationship between objective ocular torsion and the presence or absence of the trochlear nerve in subjects with unilateral superior oblique palsy (SOP). Methods A total of 159 subjects with congenital and acquired unilateral SOP were reviewed. Eighty-four subjects who had a normal trochlear nerve (present group) and 75 subjects without a trochlear nerve (absent gr...
متن کاملMagnetic resonance imaging of the functional anatomy of the inferior oblique muscle in superior oblique palsy.
PURPOSE To study size and contractility of the normal inferior oblique (IO) muscle using high-resolution magnetic resonance imaging (MRI) and to evaluate abnormalities of the superior oblique (SO) and IO muscles in chronic SO palsy. DESIGN Prospective, case control study. PARTICIPANTS Thirteen patients with SO palsy and 17 orthotropic subjects. METHODS High-resolution, surface coil MRI wa...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: American Journal of Neuroradiology
سال: 2015
ISSN: 0195-6108,1936-959X
DOI: 10.3174/ajnr.a4202