Ocular ultrasound - Revision history

Rossdonaldson1: /* Background */

2023-01-18T20:01:43Z

Background

← Older revision		Revision as of 20:01, 18 January 2023
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	==Background==		==Background==
			[[File:Schematic diagram of the human eye en.png\|thumb\|Eye anatomy.]]
	*[[US]] has been well established in the ophtho literature but new advent to ED practice		*[[US]] has been well established in the ophtho literature but new advent to ED practice

Elcatracho: /* Elevated ICP */

2021-02-26T23:48:26Z

Elevated ICP

← Older revision		Revision as of 23:48, 26 February 2021
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	*Normal is <5mm<ref>Blaivas M, Theodoro D, Sierzenski PR. Elevated intracranial pressure detected by bedside emergency ultrasonography of the optic nerve sheath. Acad Emerg Med. 2003 Apr;10(4):376-81.</ref>		*Normal is <5mm<ref>Blaivas M, Theodoro D, Sierzenski PR. Elevated intracranial pressure detected by bedside emergency ultrasonography of the optic nerve sheath. Acad Emerg Med. 2003 Apr;10(4):376-81.</ref>
	**>6mm indicates elevated ICP		**>6mm indicates elevated ICP
	**If grey zone range of 5-6mm may use ~~presents~~ of ultrasonographic papilledema to differentiate between normal or elevated ICP<ref> PulmCrit: Algorithm for diagnosing ICP elevation with ocular sonography https://emcrit.org/pulmcrit/pulmcrit-algorithm-diagnosing-icp-elevation-ocular-sonography/</ref>		**If grey zone range of 5-6mm may use presence of ultrasonographic papilledema to differentiate between normal or elevated ICP<ref> PulmCrit: Algorithm for diagnosing ICP elevation with ocular sonography https://emcrit.org/pulmcrit/pulmcrit-algorithm-diagnosing-icp-elevation-ocular-sonography/</ref>
	*U/S has a sensitivity of 95.6% and specificity of 92.3% for increased ICP<ref>Ohle R, McIsaac SM, Woo MY, et al. Sonography of the Optic Nerve Sheath Diameter for Detection of Raised Intracranial Pressure Compared to Computed Tomography: A Systematic Review and Meta-analysis. J Ultrasound Med. 2015; 34(7):1285-1294.</ref>		*U/S has a sensitivity of 95.6% and specificity of 92.3% for increased ICP<ref>Ohle R, McIsaac SM, Woo MY, et al. Sonography of the Optic Nerve Sheath Diameter for Detection of Raised Intracranial Pressure Compared to Computed Tomography: A Systematic Review and Meta-analysis. J Ultrasound Med. 2015; 34(7):1285-1294.</ref>

Elcatracho: /* Background */

2021-02-13T19:02:53Z

Background

← Older revision		Revision as of 19:02, 13 February 2021
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	==Background==		==Background==
	*~~U/S~~ has been well established in the ophtho literature but new advent to ED practice		*[[US]] has been well established in the ophtho literature but new advent to ED practice

	==Indications==		==Indications==
	*Acute/Subacute vision changes or loss		*Acute/Subacute vision changes or loss

Hoxbox: /* Elevated ICP */

2019-12-20T11:41:47Z

Elevated ICP

← Older revision		Revision as of 11:41, 20 December 2019
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	*Measure optic nerve 3mm posterior to the globe/papilla, from inner wall to inner wall		*Measure optic nerve 3mm posterior to the globe/papilla, from inner wall to inner wall
	*Normal is <5mm<ref>Blaivas M, Theodoro D, Sierzenski PR. Elevated intracranial pressure detected by bedside emergency ultrasonography of the optic nerve sheath. Acad Emerg Med. 2003 Apr;10(4):376-81.</ref>		*Normal is <5mm<ref>Blaivas M, Theodoro D, Sierzenski PR. Elevated intracranial pressure detected by bedside emergency ultrasonography of the optic nerve sheath. Acad Emerg Med. 2003 Apr;10(4):376-81.</ref>
			**>6mm indicates elevated ICP
			**If grey zone range of 5-6mm may use presents of ultrasonographic papilledema to differentiate between normal or elevated ICP<ref> PulmCrit: Algorithm for diagnosing ICP elevation with ocular sonography https://emcrit.org/pulmcrit/pulmcrit-algorithm-diagnosing-icp-elevation-ocular-sonography/</ref>
	*U/S has a sensitivity of 95.6% and specificity of 92.3% for increased ICP<ref>Ohle R, McIsaac SM, Woo MY, et al. Sonography of the Optic Nerve Sheath Diameter for Detection of Raised Intracranial Pressure Compared to Computed Tomography: A Systematic Review and Meta-analysis. J Ultrasound Med. 2015; 34(7):1285-1294.</ref>		*U/S has a sensitivity of 95.6% and specificity of 92.3% for increased ICP<ref>Ohle R, McIsaac SM, Woo MY, et al. Sonography of the Optic Nerve Sheath Diameter for Detection of Raised Intracranial Pressure Compared to Computed Tomography: A Systematic Review and Meta-analysis. J Ultrasound Med. 2015; 34(7):1285-1294.</ref>

Hoxbox: /* External Links */

2019-11-06T14:50:27Z

External Links

← Older revision		Revision as of 14:50, 6 November 2019
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	*[http://www.ultrasoundpodcast.com/2012/04/episode-26-ocular-ultrasound-with-chris-fox/ Ultrasound Podcast - Chris Fox]		*[http://www.ultrasoundpodcast.com/2012/04/episode-26-ocular-ultrasound-with-chris-fox/ Ultrasound Podcast - Chris Fox]
	*[http://www.ultrasoundvillage.com/imagelibrary/step3/?system=1&subsystem=16 Ultrasound Village - The Eye]		*[http://www.ultrasoundvillage.com/imagelibrary/step3/?system=1&subsystem=16 Ultrasound Village - The Eye]
			*[https://vimeo.com/97841337 Ocular Ultrasound Video - Robinson Ferre, Vanderbilt]

	==See Also==		==See Also==

Hoxbox: /* Retinal Detachment */

2019-11-06T14:48:58Z

Retinal Detachment

← Older revision		Revision as of 14:48, 6 November 2019
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	*Evaluate with patient moving eye left/right		*Evaluate with patient moving eye left/right
	*SN 97-100% and SP 83-100%<ref>Vrablik, ME, et al. The Diagnostic Accuracy of Bedside Ocular Ultrasonography for the Diagnosis of Retinal Detachment: A Systematic Review and Meta-analysis. Annals of Emergency Medicine. 2015; 65(2):199–203.e1.</ref>		*SN 97-100% and SP 83-100%<ref>Vrablik, ME, et al. The Diagnostic Accuracy of Bedside Ocular Ultrasonography for the Diagnosis of Retinal Detachment: A Systematic Review and Meta-analysis. Annals of Emergency Medicine. 2015; 65(2):199–203.e1.</ref>
			*[https://www.youtube.com/watch?v=gNLTZipajwM Retinal vs Vitreous Detachment Video (4 mins)]

	===[[Vitreous Hemorrhage]]===		===[[Vitreous Hemorrhage]]===

ClaireLewis: /* Intraocular Foreign Body */

2019-09-28T18:12:16Z

Intraocular Foreign Body

← Older revision		Revision as of 18:12, 28 September 2019
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	**Buckling of the sclera		**Buckling of the sclera

	===~~Intraocular Foreign Body~~===		===Intra[[ocular foreign body]]===
	*Bright, echogenic acoustic profile with associated shadowing or reverberation		*Bright, echogenic acoustic profile with associated shadowing or reverberation

ClaireLewis: /* Findings */

2019-09-28T18:09:38Z

Findings

← Older revision		Revision as of 18:09, 28 September 2019
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	==Findings==		==Findings==
	[[File:Image.png \|thumb\|Algorithm for the Evaluation of Visual Complaints with Ocular Ultrasonography]]		[[File:Image.png \|thumb\|Algorithm for the Evaluation of Visual Complaints with Ocular Ultrasonography]]
	===Elevated ICP===		===[[Elevated ICP]]===
	*Measure optic nerve 3mm posterior to the globe/papilla, from inner wall to inner wall		*Measure optic nerve 3mm posterior to the globe/papilla, from inner wall to inner wall
	*Normal is <5mm<ref>Blaivas M, Theodoro D, Sierzenski PR. Elevated intracranial pressure detected by bedside emergency ultrasonography of the optic nerve sheath. Acad Emerg Med. 2003 Apr;10(4):376-81.</ref>		*Normal is <5mm<ref>Blaivas M, Theodoro D, Sierzenski PR. Elevated intracranial pressure detected by bedside emergency ultrasonography of the optic nerve sheath. Acad Emerg Med. 2003 Apr;10(4):376-81.</ref>

ClaireLewis: /* Lens Dislocation */

2019-09-28T18:09:16Z

Lens Dislocation

← Older revision		Revision as of 18:09, 28 September 2019
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	*Increasing the gain is helpful for detecting acute hemorrhages		*Increasing the gain is helpful for detecting acute hemorrhages

	===Lens ~~Dislocation~~===		===[[Lens dislocation]]===
	*Biconvex or round hyperechoic structure (lens) is displaced from its normal position.		*Biconvex or round hyperechoic structure (lens) is displaced from its normal position.
	*With eye movement it may appear to move independently of surrounding structures.		*With eye movement it may appear to move independently of surrounding structures.

Tomfadial: Added algorithm for ultrasound

2018-09-08T17:29:56Z

Added algorithm for ultrasound

← Older revision		Revision as of 17:29, 8 September 2018
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	==Findings==		==Findings==
			[[File:Image.png \|thumb\|Algorithm for the Evaluation of Visual Complaints with Ocular Ultrasonography]]
	===Elevated ICP===		===Elevated ICP===
	*Measure optic nerve 3mm posterior to the globe/papilla, from inner wall to inner wall		*Measure optic nerve 3mm posterior to the globe/papilla, from inner wall to inner wall