Ultrasound: physics and knobology - Revision history

Rossdonaldson1: Rossdonaldson1 moved page Ultrasound physics and knobology to Ultrasound: physics and knobology

2019-10-29T18:05:03Z

Rossdonaldson1 moved page Ultrasound physics and knobology to Ultrasound: physics and knobology

← Older revision	Revision as of 18:05, 29 October 2019
(No difference)

Raviwet at 01:59, 3 October 2017

2017-10-03T01:59:50Z

← Older revision		Revision as of 01:59, 3 October 2017
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	===Colour Doppler Mode===		===Colour Doppler Mode===
	*The machine ~~apply~~ colours over B-mode image ~~for indicating~~ motion.		*The machine applies colours over the B-mode image to indicate motion.
	*Doppler ~~send~~ out ultrasound waves and ~~detect~~ changes in energy of returning ~~wave~~ affected by motion.		*Doppler sends out ultrasound waves and detects changes in energy of returning waves affected by motion.
	*In general ultrasound default red indicates motion towards the probe and blue ~~indicate~~ motion away from the probe.		*In general, ultrasound default red indicates motion towards the probe, and blue indicates motion away from the probe.
	*When the ultrasound beam is ~~closed~~ to 90 degree to the probe it will generate poor Doppler signal because motion hardly ~~effect~~ the wave energy at that angle.		*When the ultrasound beam is close to 90 degree to the probe it will generate poor Doppler signal because motion hardly effects the wave energy at that angle.
	*Angling the probe ~~help visualising~~ motion better.		*Angling the probe helps visualize motion better.
	*Motion of probe also ~~can~~ create colour through the image. Hand must be very still while using colour doppler mode.		*Motion of the probe can also create colour through the image. Hand must be very still while using colour doppler mode.
	*Avoid Doppler is vulnerable tissue, i.e. retina or a small fetus since Doppler delivers more energy and creates heat.

	===Doppler gain===		===Doppler gain===
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	*Measure motion of tissue at all depths intersect by the line created by each crystal in the probe.		*Measure motion of tissue at all depths intersect by the line created by each crystal in the probe.
	*This is measured over time and generate a graph on screen.		*This is measured over time and generate a graph on screen.
	*For emergency physician this is used for assessing lung tissue movements.		*For emergency physician this is used for assessing lung tissue, heart valve movements, and velocities.

	===Presets===		===Presets===
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	===Refraction===		===Refraction===
	*This ~~occur~~ when ultrasound waves travel close to a curved, smooth-walled structure and deflected from original path.		*This occurs when ultrasound waves travel close to a curved, smooth-walled structure and deflected from original path.
	*This appear as a shadow-like image that seems to project from the edges of the curved structure.		*This appear as a shadow-like image that seems to project from the edges of the curved structure.

Ostermayer: Text replacement - " DVT " to " DVT"

2017-01-27T18:22:35Z

Text replacement - " DVT " to " DVT"

← Older revision		Revision as of 18:22, 27 January 2017
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	*It can be adjusted according to purpose of scanning.		*It can be adjusted according to purpose of scanning.
	*Toggle up allow better resolution, i.e. when using flat-linear array probe for placing intravenous peripheral line.		*Toggle up allow better resolution, i.e. when using flat-linear array probe for placing intravenous peripheral line.
	*Toggle down allow better penetration, i.e. when performing DVT scanning in obese patient.		*Toggle down allow better penetration, i.e. when performing [[DVT]]scanning in obese patient.
	*Some ultrasound companies referring to the frequency range indicating the higher end first, i.e. 12-6 MHz.		*Some ultrasound companies referring to the frequency range indicating the higher end first, i.e. 12-6 MHz.

Rossdonaldson1: /* External Links */

2017-01-22T20:56:28Z

External Links

← Older revision		Revision as of 20:56, 22 January 2017
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	==External Links==		==External Links==
	“Knobology” chapters of “Essentials of Point-of-Care Ultrasound”s is the textbook of the Emergency Department Echo courses, Canada’s premier bedside ultrasound courses. You can learn more about The EDE Course by going to http://www.edecourse.com (for the basic course), and The EDE 2 Course by going to http://www.ede2course.com (for the advanced course). The textbook is available in print form at http://www.ede2course.com/index.php?fuseaction=ede2.publichome. The eBook (same title) is available via iBooks. This article has been adapted and posted on the WikEM website with the permission of The EDE Courses.		This article comes from the “Knobology” chapters of “Essentials of Point-of-Care Ultrasound”s is the textbook of the Emergency Department Echo courses, Canada’s premier bedside ultrasound courses. You can learn more about The EDE Course by going to http://www.edecourse.com (for the basic course), and The EDE 2 Course by going to http://www.ede2course.com (for the advanced course). The textbook is available in print form at http://www.ede2course.com/index.php?fuseaction=ede2.publichome. The eBook (same title) is available via iBooks. This article has been adapted and posted on the WikEM website with the permission of The EDE Courses.

	==References==		==References==
	*Socransky S, Wiss R. Essential of Point of Care Ultrasound.		*Socransky S, Wiss R. Essential of Point of Care Ultrasound.
	[[Category:Ultrasound]]		[[Category:Ultrasound]]

Rossdonaldson1: /* Mirror Artifact */

2017-01-22T20:54:48Z

Mirror Artifact

← Older revision		Revision as of 20:54, 22 January 2017
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	*Occurring with highly reflective surface.		*Occurring with highly reflective surface.
	*Look like a duplication of near-field structures on the far-field side of the surface.		*Look like a duplication of near-field structures on the far-field side of the surface.
	*Most commonly appear at RUQ; a mirror image of liver can be seen at the far field or cephalic to the diaphragm.		*Most commonly appear at RUQ; a mirror image of liver can be seen at the far field or cephalic to the diaphragm.


	===Anisotropy===		===Anisotropy===

Rossdonaldson1: /* External Links */

2017-01-22T20:54:30Z

External Links

← Older revision		Revision as of 20:54, 22 January 2017
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	==External Links==		==External Links==
	“Knobology” chapters of “Essentials of Point-of-Care Ultrasound”s is the textbook of the Emergency Department Echo courses, Canada’s premier bedside ultrasound courses. You can learn more about The EDE Course by going to http://www.edecourse.com (for the basic course), and The EDE 2 Course by going to www.ede2course.com (for the advanced course). The textbook is available in print form at http://www.ede2course.com/index.php?fuseaction=ede2.publichome. The eBook (same title) is available via iBooks. This article has been adapted and posted on the WikEM website with the permission of The EDE Courses.		“Knobology” chapters of “Essentials of Point-of-Care Ultrasound”s is the textbook of the Emergency Department Echo courses, Canada’s premier bedside ultrasound courses. You can learn more about The EDE Course by going to http://www.edecourse.com (for the basic course), and The EDE 2 Course by going to http://www.ede2course.com (for the advanced course). The textbook is available in print form at http://www.ede2course.com/index.php?fuseaction=ede2.publichome. The eBook (same title) is available via iBooks. This article has been adapted and posted on the WikEM website with the permission of The EDE Courses.

	==References==		==References==
	*Socransky S, Wiss R. Essential of Point of Care Ultrasound.		*Socransky S, Wiss R. Essential of Point of Care Ultrasound.
	[[Category:Ultrasound]]		[[Category:Ultrasound]]

Rossdonaldson1 at 20:54, 22 January 2017

2017-01-22T20:54:13Z

← Older revision		Revision as of 20:54, 22 January 2017
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	The article below is a summarization of the “Knobology” chapters of “Essentials of Point-of-Care Ultrasound”. This is the textbook of the Emergency Department Echo courses, Canada’s premier bedside ultrasound courses. You can learn more about The EDE Course by going to www.edecourse.com (for the basic course), and The EDE 2 Course by going to www.ede2course.com (for the advanced course). The textbook is available in print form at http://www.ede2course.com/index.php?fuseaction=ede2.publichome. The eBook (same title) is available via iBooks. This article has been adapted and posted on the WikEM website with the permission of The EDE Courses.
	==Nature of Sound Waves==		==Nature of Sound Waves==
	*How far the sound waves can travel depend on		*How far the sound waves can travel depend on
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	*When the area of the main path appear hypoechoic these side object reflection will be superimposed upon it.		*When the area of the main path appear hypoechoic these side object reflection will be superimposed upon it.
	*Commonly occurring with heart scanning. Image of adjacent tissue will be superimposed upon the image of fluid-filled chambers.		*Commonly occurring with heart scanning. Image of adjacent tissue will be superimposed upon the image of fluid-filled chambers.




	==See Also==		==See Also==
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	==External Links==		==External Links==
			“Knobology” chapters of “Essentials of Point-of-Care Ultrasound”s is the textbook of the Emergency Department Echo courses, Canada’s premier bedside ultrasound courses. You can learn more about The EDE Course by going to http://www.edecourse.com (for the basic course), and The EDE 2 Course by going to www.ede2course.com (for the advanced course). The textbook is available in print form at http://www.ede2course.com/index.php?fuseaction=ede2.publichome. The eBook (same title) is available via iBooks. This article has been adapted and posted on the WikEM website with the permission of The EDE Courses.

	==References==		==References==
	*Socransky S, Wiss R. Essential of Point of Care Ultrasound.		*Socransky S, Wiss R. Essential of Point of Care Ultrasound.
	[[Category:Ultrasound]]		[[Category:Ultrasound]]

Jo2jo25: /* References */

2017-01-22T20:23:16Z

References

← Older revision		Revision as of 20:23, 22 January 2017
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	==References==		==References==
			*Socransky S, Wiss R. Essential of Point of Care Ultrasound.
	[[Category:Ultrasound]]		[[Category:Ultrasound]]

Jo2jo25 at 20:18, 22 January 2017

2017-01-22T20:18:54Z

← Older revision		Revision as of 20:18, 22 January 2017
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	~~“The~~ article below is a summarization of the “Knobology” chapters of “Essentials of Point-of-Care Ultrasound”. This is the textbook of the Emergency Department Echo courses, Canada’s premier bedside ultrasound courses. You can learn more about The EDE Course by going to www.edecourse.com (for the basic course), and The EDE 2 Course by going to www.ede2course.com (for the advanced course). The textbook is available in print form at http://www.ede2course.com/index.php?fuseaction=ede2.publichome. The eBook (same title) is available via iBooks. This article has been adapted and posted on the WikEM website with the permission of The EDE Courses.”		The article below is a summarization of the “Knobology” chapters of “Essentials of Point-of-Care Ultrasound”. This is the textbook of the Emergency Department Echo courses, Canada’s premier bedside ultrasound courses. You can learn more about The EDE Course by going to www.edecourse.com (for the basic course), and The EDE 2 Course by going to www.ede2course.com (for the advanced course). The textbook is available in print form at http://www.ede2course.com/index.php?fuseaction=ede2.publichome. The eBook (same title) is available via iBooks. This article has been adapted and posted on the WikEM website with the permission of The EDE Courses.
	==Nature of Sound Waves==		==Nature of Sound Waves==
	*How far the sound waves can travel depend on		*How far the sound waves can travel depend on

Jo2jo25: I was asked by the source of the reference book used for summarisation to put this quote on this page

2017-01-22T17:08:04Z

I was asked by the source of the reference book used for summarisation to put this quote on this page

← Older revision		Revision as of 17:08, 22 January 2017
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			“The article below is a summarization of the “Knobology” chapters of “Essentials of Point-of-Care Ultrasound”. This is the textbook of the Emergency Department Echo courses, Canada’s premier bedside ultrasound courses. You can learn more about The EDE Course by going to www.edecourse.com (for the basic course), and The EDE 2 Course by going to www.ede2course.com (for the advanced course). The textbook is available in print form at http://www.ede2course.com/index.php?fuseaction=ede2.publichome. The eBook (same title) is available via iBooks. This article has been adapted and posted on the WikEM website with the permission of The EDE Courses.”
	==Nature of Sound Waves==		==Nature of Sound Waves==
	*How far the sound waves can travel depend on		*How far the sound waves can travel depend on