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Role of imaging in the management of neuro-ophthalmic disorders.

Gandhi RA, Nair AG - Indian J Ophthalmol (2011 Mar-Apr)

Bottom Line: Advancements in physics, computers, and imaging science in the last century have seen neuro-imaging evolving from a plain X-ray to computed tomography, magnetic resonance imaging scans, noninvasive angiography, and special sequences such as fat suppression, fluid attenuation recovery and diffusion-weighted imaging.A prompt prescription of an appropriate imaging modality and the most suitable sequence can increase the diagnostic yield, and in many instances, it can be a sight-saving and even a life-saving decision.This article discusses basic principles of neuro-imaging, its common indications, and the appropriate application in an ophthalmology practice.

View Article: PubMed Central - PubMed

Affiliation: Sankara Nethralaya, A Unit of Medical Research Foundation, Chennai - 600 006, Tamil Nadu, India. rashmin70@yahoo.com

ABSTRACT
Advancements in physics, computers, and imaging science in the last century have seen neuro-imaging evolving from a plain X-ray to computed tomography, magnetic resonance imaging scans, noninvasive angiography, and special sequences such as fat suppression, fluid attenuation recovery and diffusion-weighted imaging. A prompt prescription of an appropriate imaging modality and the most suitable sequence can increase the diagnostic yield, and in many instances, it can be a sight-saving and even a life-saving decision. This article discusses basic principles of neuro-imaging, its common indications, and the appropriate application in an ophthalmology practice.

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Related in: MedlinePlus

A 54 year old non diabetic, non hypertensive male; who presented with a 6 month old history of left sided VI nerve palsy. Axial T2 weighted image (left) and coronal T2 weighted FRFSE (fast relaxation fast spin echo) image (right) showing a large fairly well circumscribed lobulated heterogenous mass in the left cavernous sinus, displaying a heterogenous hyperintense signal. Note that the cavernous internal carotid artery is not seen separately on the left side
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Figure 010: A 54 year old non diabetic, non hypertensive male; who presented with a 6 month old history of left sided VI nerve palsy. Axial T2 weighted image (left) and coronal T2 weighted FRFSE (fast relaxation fast spin echo) image (right) showing a large fairly well circumscribed lobulated heterogenous mass in the left cavernous sinus, displaying a heterogenous hyperintense signal. Note that the cavernous internal carotid artery is not seen separately on the left side

Mentions: VI nerve palsy is far more common than III N palsy. It may not be feasible to order neuro-imaging for every patient of VI nerve palsy. Current recommendation is to observe cases of isolated VI nerve palsy with vasculopathic risk factors, and to obtain neuro-imaging upon follow-up only if the ophthalmoplegia does not improve, progresses, or becomes nonisolated [Fig. 10].[16] However, VI nerve palsy in younger patients and those without a history of diabetes, hypertension, or trauma must be imaged.


Role of imaging in the management of neuro-ophthalmic disorders.

Gandhi RA, Nair AG - Indian J Ophthalmol (2011 Mar-Apr)

A 54 year old non diabetic, non hypertensive male; who presented with a 6 month old history of left sided VI nerve palsy. Axial T2 weighted image (left) and coronal T2 weighted FRFSE (fast relaxation fast spin echo) image (right) showing a large fairly well circumscribed lobulated heterogenous mass in the left cavernous sinus, displaying a heterogenous hyperintense signal. Note that the cavernous internal carotid artery is not seen separately on the left side
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3116539&req=5

Figure 010: A 54 year old non diabetic, non hypertensive male; who presented with a 6 month old history of left sided VI nerve palsy. Axial T2 weighted image (left) and coronal T2 weighted FRFSE (fast relaxation fast spin echo) image (right) showing a large fairly well circumscribed lobulated heterogenous mass in the left cavernous sinus, displaying a heterogenous hyperintense signal. Note that the cavernous internal carotid artery is not seen separately on the left side
Mentions: VI nerve palsy is far more common than III N palsy. It may not be feasible to order neuro-imaging for every patient of VI nerve palsy. Current recommendation is to observe cases of isolated VI nerve palsy with vasculopathic risk factors, and to obtain neuro-imaging upon follow-up only if the ophthalmoplegia does not improve, progresses, or becomes nonisolated [Fig. 10].[16] However, VI nerve palsy in younger patients and those without a history of diabetes, hypertension, or trauma must be imaged.

Bottom Line: Advancements in physics, computers, and imaging science in the last century have seen neuro-imaging evolving from a plain X-ray to computed tomography, magnetic resonance imaging scans, noninvasive angiography, and special sequences such as fat suppression, fluid attenuation recovery and diffusion-weighted imaging.A prompt prescription of an appropriate imaging modality and the most suitable sequence can increase the diagnostic yield, and in many instances, it can be a sight-saving and even a life-saving decision.This article discusses basic principles of neuro-imaging, its common indications, and the appropriate application in an ophthalmology practice.

View Article: PubMed Central - PubMed

Affiliation: Sankara Nethralaya, A Unit of Medical Research Foundation, Chennai - 600 006, Tamil Nadu, India. rashmin70@yahoo.com

ABSTRACT
Advancements in physics, computers, and imaging science in the last century have seen neuro-imaging evolving from a plain X-ray to computed tomography, magnetic resonance imaging scans, noninvasive angiography, and special sequences such as fat suppression, fluid attenuation recovery and diffusion-weighted imaging. A prompt prescription of an appropriate imaging modality and the most suitable sequence can increase the diagnostic yield, and in many instances, it can be a sight-saving and even a life-saving decision. This article discusses basic principles of neuro-imaging, its common indications, and the appropriate application in an ophthalmology practice.

Show MeSH
Related in: MedlinePlus